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Chen P, Zhang MM, Rao L, Li YH, Jia Y, Tan Y, Xiao WJ, Lu LQ. Access to N-α-quaternary chiral morpholines via Cu-catalyzed asymmetric propargylic amination/desymmetrization strategy. Sci Bull (Beijing) 2024:S2095-9273(24)00564-4. [PMID: 39183108 DOI: 10.1016/j.scib.2024.08.005] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/12/2024] [Revised: 06/17/2024] [Accepted: 08/02/2024] [Indexed: 08/27/2024]
Abstract
Morpholines are widespread in many biologically and catalytically active agents, thus being an important aim of pharmaceutical and synthetic chemists. However, efficient strategies for the catalytic asymmetric synthesis of chiral morpholines bearing crowded stereogenic centers still remain elusive. Herein, we disclose a Cu-catalyzed asymmetric propargylic amination/desymmetrization strategy to help resolve this challenge. As a result, two kinds of structurally various chiral morpholines bearing rich functional groups and N-α-quaternary stereocenters were produced with high efficiency and selectivity (42 examples, up to 91 % yield, 97:3 er and > 19:1 dr). In addition, a series of transformations were performed to demonstrate the synthetic utility of this methodology. In particular, a hit compound for new antitumor drugs was identified through cellular evaluation. Furthermore, mechanistic investigations reveal that, hydrogen bonding in the key copper-allenylidene intermediate together with π-π stacking aids remote enantioinduction.
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Affiliation(s)
- Peng Chen
- Engineering Research Center of Photoenergy Utilization for Pollution Control and Carbon Reduction (Ministry of Education), College of Chemistry, Central China Normal University, Wuhan 430079, China
| | - Mao-Mao Zhang
- Engineering Research Center of Photoenergy Utilization for Pollution Control and Carbon Reduction (Ministry of Education), College of Chemistry, Central China Normal University, Wuhan 430079, China
| | - Li Rao
- Engineering Research Center of Photoenergy Utilization for Pollution Control and Carbon Reduction (Ministry of Education), College of Chemistry, Central China Normal University, Wuhan 430079, China
| | - Yuan-Heng Li
- State Key Laboratory of Chemical Oncogenomics, Key Laboratory of Chemical Biology, Tsinghua Shenzhen International Graduate School, Tsinghua University, Shenzhen 518055, China
| | - Yue Jia
- Engineering Research Center of Photoenergy Utilization for Pollution Control and Carbon Reduction (Ministry of Education), College of Chemistry, Central China Normal University, Wuhan 430079, China
| | - Ying Tan
- State Key Laboratory of Chemical Oncogenomics, Key Laboratory of Chemical Biology, Tsinghua Shenzhen International Graduate School, Tsinghua University, Shenzhen 518055, China
| | - Wen-Jing Xiao
- Engineering Research Center of Photoenergy Utilization for Pollution Control and Carbon Reduction (Ministry of Education), College of Chemistry, Central China Normal University, Wuhan 430079, China; Wuhan Institute of Photochemistry and Technology, Wuhan 430082, China
| | - Liang-Qiu Lu
- Engineering Research Center of Photoenergy Utilization for Pollution Control and Carbon Reduction (Ministry of Education), College of Chemistry, Central China Normal University, Wuhan 430079, China; Wuhan Institute of Photochemistry and Technology, Wuhan 430082, China; State Key Laboratory for Oxo Synthesis and Selective Oxidation, Lanzhou Institute of Chemical Physics (LICP), Chinese Academy of Sciences, Lanzhou 730000, China; School of Chemistry and Chemical Engineering, Henan Normal University, Xinxiang 453007, China.
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2
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Kusano S, Nishikata T. Controlling Cyclic Dienamine Reactivity in Radical tert-Alkylation for Molecular Diversity to Synthesize Multicyclic Compounds Possessing a Quaternary Carbon. Chemistry 2024; 30:e202304215. [PMID: 38234196 DOI: 10.1002/chem.202304215] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/18/2023] [Revised: 01/12/2024] [Accepted: 01/15/2024] [Indexed: 01/19/2024]
Abstract
Synthesis of diverse sterically congested molecules from a single important intermediate is one of the ideal synthetic strategies in organic synthesis. In this paper, we found that γ-oxoalkyl substituted cyclohexenone derivatives (OAC) possessing a quaternary carbon are a useful key intermediate to derive both congested fused [5,6] rings and spirocycles. For this purpose, we have established an efficient synthetic method to obtain OAC by tertiary alkylation of β-methylcyclohexenone derivatives using α-bromocarbonyl compounds as a tertiary alkyl source. The key to the success of this reaction is controlling the reactivity of the dienamine intermediate. While there have been many reports on enamine reactions, dienamine reactions have not been well studied. Herein, we report controlling reactivity of dienamines and molecular diversification from OAC.
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Affiliation(s)
- Shinjiro Kusano
- Graduate School of Science and Engineering, Yamaguchi University, 2-16-1 Tokiwadai, Ube, Yamaguchi, 755-8611, Japan
| | - Takashi Nishikata
- Graduate School of Science and Engineering, Yamaguchi University, 2-16-1 Tokiwadai, Ube, Yamaguchi, 755-8611, Japan
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3
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Li X, Zhang J, Chen Q, Tang P, Zhang T, Feng Q, Chen J, Liu Y, Wang FP, Peng C, Qin Y, Ouyang L, Xiao K, Liu XY. Diversity-oriented synthesis of diterpenoid alkaloids yields a potent anti-inflammatory agent. PHYTOMEDICINE : INTERNATIONAL JOURNAL OF PHYTOTHERAPY AND PHYTOPHARMACOLOGY 2023; 117:154907. [PMID: 37295024 DOI: 10.1016/j.phymed.2023.154907] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/21/2023] [Revised: 05/22/2023] [Accepted: 05/28/2023] [Indexed: 06/11/2023]
Abstract
BACKGROUND The diterpenoid alkaloids belong to a highly esteemed group of natural compounds, which display significant biological activities. It is a productive strategy to expand the chemical space of these intriguing natural compounds for drug discovery. METHODS We prepared a series of new derivatives bearing diverse skeletons and functionalities from the diterpenoid alkaloids deltaline and talatisamine based on a diversity-oriented synthesis strategy. The anti-inflammatory activity of these derivatives was initially screened and evaluated by the release of nitric oxide (NO), tumor necrosis factor (TNF-α), and interleukin-6 (IL-6) in lipopolysaccharide (LPS)-activated RAW264.7 cells. Futhermore, the anti-inflammatory activity of the representative derivative 31a was validated in various inflammatory animal models, including phorbol ester 12-O-tetradecanoylphorbol-13-acetate (TPA)-induced mice ear edema, LPS-stimulated acute kidney injury, and collagen-induced arthritis (CIA). RESULTS It was found that several derivatives were able to suppress the secretion of NO, TNF-α, and IL-6 in LPS-activated RAW264.7 cells. Compound 31a, one of the representative derivatives named as deltanaline, demonstrated the strongest anti-inflammatory effects in LPS-activated macrophages and three different animal models of inflammatory diseases by inhibiting nuclear factor kappa-B (NF-κB)/mitogen-activated protein kinase (MAPK) signaling and inducing autophagy. CONCLUSION Deltanaline is a new structural compound derived from natural diterpenoid alkaloids, which may serve as a new lead compound for the treatment of inflammatory diseases.
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Affiliation(s)
- Xiaojie Li
- Precision Medicine Research Center, Sichuan Provincial Key Laboratory of Precision Medicine, National Clinical Research Center for Geriatrics, West China Hospital, Sichuan University, Chengdu 610041, China
| | - Jifa Zhang
- State Key Laboratory of Biotherapy and Cancer Center, Joint Research Institution of Altitude Health, West China Hospital, Sichuan University, Chengdu 610041, China
| | - Qifeng Chen
- Key Laboratory of Drug-Targeting and Drug Delivery System of the Education Ministry and Sichuan Province, Sichuan Engineering Laboratory for Plant-Sourced Drug and Sichuan Research Center for Drug Precision Industrial Technology, West China School of Pharmacy, Sichuan University, Chengdu 610041, China
| | - Pan Tang
- State Key Laboratory of Biotherapy and Cancer Center, Joint Research Institution of Altitude Health, West China Hospital, Sichuan University, Chengdu 610041, China
| | - Ting Zhang
- Precision Medicine Research Center, Sichuan Provincial Key Laboratory of Precision Medicine, National Clinical Research Center for Geriatrics, West China Hospital, Sichuan University, Chengdu 610041, China
| | - Qiyi Feng
- Precision Medicine Research Center, Sichuan Provincial Key Laboratory of Precision Medicine, National Clinical Research Center for Geriatrics, West China Hospital, Sichuan University, Chengdu 610041, China
| | - Jiajun Chen
- Key Laboratory of Drug-Targeting and Drug Delivery System of the Education Ministry and Sichuan Province, Sichuan Engineering Laboratory for Plant-Sourced Drug and Sichuan Research Center for Drug Precision Industrial Technology, West China School of Pharmacy, Sichuan University, Chengdu 610041, China
| | - Yun Liu
- State Key Laboratory of Biotherapy and Cancer Center, Joint Research Institution of Altitude Health, West China Hospital, Sichuan University, Chengdu 610041, China
| | - Feng-Peng Wang
- Key Laboratory of Drug-Targeting and Drug Delivery System of the Education Ministry and Sichuan Province, Sichuan Engineering Laboratory for Plant-Sourced Drug and Sichuan Research Center for Drug Precision Industrial Technology, West China School of Pharmacy, Sichuan University, Chengdu 610041, China
| | - Cheng Peng
- School of Pharmacy, Chengdu University of Traditional Chinese Medicine, Chengdu 611137, China
| | - Yong Qin
- Key Laboratory of Drug-Targeting and Drug Delivery System of the Education Ministry and Sichuan Province, Sichuan Engineering Laboratory for Plant-Sourced Drug and Sichuan Research Center for Drug Precision Industrial Technology, West China School of Pharmacy, Sichuan University, Chengdu 610041, China
| | - Liang Ouyang
- State Key Laboratory of Biotherapy and Cancer Center, Joint Research Institution of Altitude Health, West China Hospital, Sichuan University, Chengdu 610041, China.
| | - Kai Xiao
- Precision Medicine Research Center, Sichuan Provincial Key Laboratory of Precision Medicine, National Clinical Research Center for Geriatrics, West China Hospital, Sichuan University, Chengdu 610041, China.
| | - Xiao-Yu Liu
- Key Laboratory of Drug-Targeting and Drug Delivery System of the Education Ministry and Sichuan Province, Sichuan Engineering Laboratory for Plant-Sourced Drug and Sichuan Research Center for Drug Precision Industrial Technology, West China School of Pharmacy, Sichuan University, Chengdu 610041, China.
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4
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Guo J, Wang X, Ni C, Wan X, Hu J. SulfoxFluor-enabled deoxyazidation of alcohols with NaN 3. Nat Commun 2022; 13:2752. [PMID: 35585073 PMCID: PMC9117260 DOI: 10.1038/s41467-022-30132-x] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/30/2020] [Accepted: 04/14/2022] [Indexed: 11/09/2022] Open
Abstract
Direct deoxyazidation of alcohols with NaN3 is a straightforward method for the synthesis of widely used alkyl azides in organic chemistry. However, known methods have some limitations such as high reaction temperatures and narrow substrate scope. Herein, a general and practical method for the preparation of alkyl azides from alcohols using NaN3 has been developed. N-tosyl-4-chlorobenzenesulfonimidoyl fluoride (SulfoxFluor) plays an important role in this deoxyazidation process, which converts a broad range of alcohols into alkyl azides at room temperature. The power of this deoxyazidation protocol has been demonstrated by successful late-stage deoxyazidation of natural products and pharmaceutically relevant molecules.
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Affiliation(s)
- Junkai Guo
- Key Laboratory of Organofluorine Chemistry, Center for Excellence in Molecular Synthesis, Shanghai Institute of Organic Chemistry, University of Chinese Academy of Sciences, Chinese Academy of Sciences, 345 Ling-Ling Road, Shanghai, 200032, China
| | - Xiu Wang
- Key Laboratory of Organofluorine Chemistry, Center for Excellence in Molecular Synthesis, Shanghai Institute of Organic Chemistry, University of Chinese Academy of Sciences, Chinese Academy of Sciences, 345 Ling-Ling Road, Shanghai, 200032, China
| | - Chuanfa Ni
- Key Laboratory of Organofluorine Chemistry, Center for Excellence in Molecular Synthesis, Shanghai Institute of Organic Chemistry, University of Chinese Academy of Sciences, Chinese Academy of Sciences, 345 Ling-Ling Road, Shanghai, 200032, China
| | - Xiaolong Wan
- Key Laboratory of Organofluorine Chemistry, Center for Excellence in Molecular Synthesis, Shanghai Institute of Organic Chemistry, University of Chinese Academy of Sciences, Chinese Academy of Sciences, 345 Ling-Ling Road, Shanghai, 200032, China
| | - Jinbo Hu
- Key Laboratory of Organofluorine Chemistry, Center for Excellence in Molecular Synthesis, Shanghai Institute of Organic Chemistry, University of Chinese Academy of Sciences, Chinese Academy of Sciences, 345 Ling-Ling Road, Shanghai, 200032, China.
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5
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Ioffe V. Analytical scientist in pharmaceutical company: My thirty years in analytical R&D. J Pharm Biomed Anal 2021; 205:114334. [PMID: 34474229 DOI: 10.1016/j.jpba.2021.114334] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/28/2021] [Revised: 08/13/2021] [Accepted: 08/18/2021] [Indexed: 11/29/2022]
Abstract
A "summing up" of ~30 years' experience of analytical scientist in R&D of pharmaceutical industry. Some examples provided of most interesting and challenging cases of practical troubleshooting which we faced - and were able to solve. The cases are discussed in details in intention to not only debrief what has happened, but also to provide learning material for young analysts.
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6
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Li S, Chen Q, Xie X, Yang J, Zhang J. Pd-Catalyzed Enantioselective Dearomative Allylic Annulation to Access PPAPs Analogues. Org Lett 2021; 23:7824-7828. [PMID: 34570520 DOI: 10.1021/acs.orglett.1c02842] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
Polycyclic polyprenylated acylphloroglucinols (PPAPs) share a common bicyclo[3.3.1]alkenone core structure and attract numerous attention from synthetic organic chemists due to their fascinating biological properties and associated synthetic challenges. We present herein that Pd-phosphoramidite catalysts promote the enantioselective dearomative allylic annulation reaction between allyl desoxyhumulones and allylic dicarbonates, affording PPAPs analogues in good yields and enantioselectivities. The reaction likely proceeds through two-step dearomative allylation by Pd, and the C-allylation pathway is the dominant mechanistic model.
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Affiliation(s)
- Sanliang Li
- Department of Chemistry, Fudan University, 2005 Songhu Road, Shanghai 200438, China
| | - Qiaoyu Chen
- Academy for Engineering and Technology, Fudan University, Shanghai 200438, China
| | - Xiaoxiao Xie
- Department of Chemistry, Fudan University, 2005 Songhu Road, Shanghai 200438, China
| | - Junfeng Yang
- Department of Chemistry, Fudan University, 2005 Songhu Road, Shanghai 200438, China.,Zhuhai Fudan Innovation Institute, Zhuhai 519000, China
| | - Junliang Zhang
- Department of Chemistry, Fudan University, 2005 Songhu Road, Shanghai 200438, China.,Zhuhai Fudan Innovation Institute, Zhuhai 519000, China
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7
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Zhu L, Zhao RH, Li Y, Liu GQ, Zhao Y. CtD strategy to construct stereochemically complex and structurally diverse compounds from griseofulvin. Chem Commun (Camb) 2021; 57:10755-10758. [PMID: 34585686 DOI: 10.1039/d1cc04007c] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
Abstract
The Complexity to Diversity (CtD) strategy, a strategy for the synthesis of stereochemically complex and structurally diverse small molecules from natural products using ring-distortion reactions, was applied in the synthesis of a 47-member compound collection from the natural product griseofulvin. A Tsuji-Trost allylation and oxa-Michael cyclization tandem reaction was used for the first time in the CtD strategy to generate complex ring fused compounds.
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Affiliation(s)
- Li Zhu
- School of Pharmacy, Nantong University, Nantong 226001, China.
| | - Rui-Han Zhao
- School of Pharmacy, China Pharmaceutical University, Nanjing, 211198, China
| | - Yu Li
- School of Pharmacy, Nantong University, Nantong 226001, China.
| | - Gong-Qing Liu
- School of Pharmacy, Nantong University, Nantong 226001, China.
| | - Yu Zhao
- School of Pharmacy, Nantong University, Nantong 226001, China.
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8
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A proteome-wide atlas of lysine-reactive chemistry. Nat Chem 2021; 13:1081-1092. [PMID: 34504315 DOI: 10.1038/s41557-021-00765-4] [Citation(s) in RCA: 102] [Impact Index Per Article: 34.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/17/2020] [Accepted: 07/05/2021] [Indexed: 01/24/2023]
Abstract
Recent advances in chemical proteomics have begun to characterize the reactivity and ligandability of lysines on a global scale. Yet, only a limited diversity of aminophilic electrophiles have been evaluated for interactions with the lysine proteome. Here, we report an in-depth profiling of >30 uncharted aminophilic chemotypes that greatly expands the content of ligandable lysines in human proteins. Aminophilic electrophiles showed disparate proteomic reactivities that range from selective interactions with a handful of lysines to, for a set of dicarboxaldehyde fragments, remarkably broad engagement of the covalent small-molecule-lysine interactions captured by the entire library. We used these latter 'scout' electrophiles to efficiently map ligandable lysines in primary human immune cells under stimulatory conditions. Finally, we show that aminophilic compounds perturb diverse biochemical functions through site-selective modification of lysines in proteins, including protein-RNA interactions implicated in innate immune responses. These findings support the broad potential of covalent chemistry for targeting functional lysines in the human proteome.
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9
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Perera S, Fernando A, Dallman J, Weeramange C, Lansakara A, Nguyen T, Rafferty RJ. Construction and Biological Evaluation of Small Libraries Based on the Intermediates within the Total Synthesis of Uvaretin. ChemMedChem 2021; 16:1631-1639. [PMID: 33491867 DOI: 10.1002/cmdc.202001010] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/30/2020] [Indexed: 11/12/2022]
Abstract
Discovering therapeutic agents: New bioactive agents, either as sole or combinational agents, have been constructed through the synthetic manipulation of the intermediates within the total synthesis of the uvaretin class of natural products. It was found that increasing the hydrophobic character of the phenolic core correlates to a decrease in sole agent cytotoxicity. The synthesis of new, small chemical screening libraries (CSL) constructed from the intermediates of our total synthesis route of the uvaretin class of natural products is demonstrated herein. Numerous chalcone-based CSLs with various substitution on the phenolic groups within the chalcone core were assembled. Through cytotoxicity investigations, it was found that the level of hydrophobicity of the phenolic core of the chalcones gives biases: less cytotoxicity with more hydrophobic cores. In addition, it was observed that the potentiation, evaluated with 6-thiopurine in the pancreatic cancer cell line MIA PaCa-2, is tunable by the inclusion of less-hydrophobic character on the phenolic core. The role of the o-hydroxybenzyl group, present within the uvaretin family, was revealed to be cytotoxic in character. Merging all of the structure-activity relationship studies performed on the CSLs constructed in this effort led to the construction of a new chalcone hybrid possessing both a cytotoxic enone group and a small-molecule-potentiating, reduced enone group.
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Affiliation(s)
- Shashika Perera
- Department of Chemistry, Kansas State University, 1212 Mid-Campus Drive North, Manhattan, KS 66506, USA
| | - Asantha Fernando
- Department of Chemistry, Kansas State University, 1212 Mid-Campus Drive North, Manhattan, KS 66506, USA
| | - Johnathan Dallman
- Department of Chemistry, Kansas State University, 1212 Mid-Campus Drive North, Manhattan, KS 66506, USA
| | - Chamitha Weeramange
- Department of Chemistry, Kansas State University, 1212 Mid-Campus Drive North, Manhattan, KS 66506, USA
| | - Ashabha Lansakara
- Department of Chemistry, Kansas State University, 1212 Mid-Campus Drive North, Manhattan, KS 66506, USA
| | - Thi Nguyen
- Department of Chemistry, Kansas State University, 1212 Mid-Campus Drive North, Manhattan, KS 66506, USA
| | - Ryan J Rafferty
- Department of Chemistry, Kansas State University, 1212 Mid-Campus Drive North, Manhattan, KS 66506, USA
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10
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Asai T. Synthetic Biology Based Construction of Fungal Diterpenoid Pyrone Library. J SYN ORG CHEM JPN 2021. [DOI: 10.5059/yukigoseikyokaishi.79.322] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Affiliation(s)
- Teigo Asai
- Graduate School of Pharmaceutical Sciences, Tohoku University
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11
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Utaka Y, Kashiwazaki G, Tsuchida N, Fukushima M, Takahashi I, Kawai Y, Kitayama T. Remarkable Potential of Zerumbone to Generate a Library with Six Natural Product-like Skeletons by Natural Material-Related Diversity-Oriented Synthesis. J Org Chem 2020; 85:8371-8386. [PMID: 32524816 DOI: 10.1021/acs.joc.0c00689] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Abstract
Diversity-oriented synthesis (DOS) is an effective strategy for the quick creation of diverse and high three-dimensional compounds from simple starting materials. The selection of a starting material is the key to constructing useful, chemically diverse compound libraries for the development of new drugs. Here, we report a novel, general, and facile strategy for the creation of diverse compounds with high structural diversity from readily available natural products, such as zerumbone, as the synthetic starting material. Zerumbone is the major component of the essential oil from wild ginger, Zingiber zerumbet Smith. It is noteworthy that zerumbone has a powerful latent reactivity, partly because of its three double bonds, two conjugated and one isolated, and a double conjugated carbonyl group in an 11-membered ring structure. In fact, zerumbone has been shown to be a successful example of natural material-related DOS (NMRDOS). We will report that zerumbone can be converted in one chemical step from four zerumbone derivatives into rare and markedly different scaffolds by transannulation.
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Affiliation(s)
- Yoshimi Utaka
- Major in Advanced Bioscience, Graduate School of Agriculture, Kindai University, Nara 631-8505, Japan
| | - Gengo Kashiwazaki
- Major in Advanced Bioscience, Graduate School of Agriculture, Kindai University, Nara 631-8505, Japan
| | - Noriko Tsuchida
- Faculty of Medicine, Saitama Medical University, Saitama 350-0495, Japan
| | - Miyuki Fukushima
- Major in Advanced Bioscience, Graduate School of Agriculture, Kindai University, Nara 631-8505, Japan
| | - Issei Takahashi
- Major in Advanced Bioscience, Graduate School of Agriculture, Kindai University, Nara 631-8505, Japan
| | - Yasushi Kawai
- Nagahama Institute of Bio-Science and Technology, Nagahama, Shiga 526-0829, Japan
| | - Takashi Kitayama
- Major in Advanced Bioscience, Graduate School of Agriculture, Kindai University, Nara 631-8505, Japan
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12
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Norwood V, Brice-Tutt AC, Eans SO, Stacy HM, Shi G, Ratnayake R, Rocca JR, Abboud KA, Li C, Luesch H, McLaughlin JP, Huigens RW. Preventing Morphine-Seeking Behavior through the Re-Engineering of Vincamine's Biological Activity. J Med Chem 2020; 63:5119-5138. [PMID: 31913038 PMCID: PMC7324933 DOI: 10.1021/acs.jmedchem.9b01924] [Citation(s) in RCA: 27] [Impact Index Per Article: 6.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/26/2019] [Indexed: 12/17/2022]
Abstract
Innovative discovery strategies are essential to address the ongoing opioid epidemic in the United States. Misuse of prescription and illegal opioids (e.g., morphine, heroin) has led to major problems with addiction and overdose. We used vincamine, an indole alkaloid, as a synthetic starting point for dramatic structural alterations of its complex, fused ring system to synthesize 80 diverse compounds with intricate molecular architectures. A select series of vincamine-derived compounds were screened for both agonistic and antagonistic activities against a panel of 168 G protein-coupled receptor (GPCR) drug targets. Although vincamine was without an effect, the novel compound 4 (V2a) demonstrated antagonistic activities against hypocretin (orexin) receptor 2. When advanced to animal studies, 4 (V2a) significantly prevented acute morphine-conditioned place preference (CPP) and stress-induced reinstatement of extinguished morphine-CPP in mouse models of opioid reward and relapse. These results demonstrate that the ring distortion of vincamine offers a promising way to explore new chemical space of relevance to opioid addiction.
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Affiliation(s)
- Verrill
M. Norwood
- Department
of Medicinal Chemistry, College of Pharmacy, University of Florida, Gainesville, Florida 32610, United States
- Center
for Natural Products, Drug Discovery & Development (CNPD3), College
of Pharmacy, University of Florida, Gainesville, Florida 32610, United States
| | - Ariana C. Brice-Tutt
- Department
of Pharmacodynamics, College of Pharmacy, University of Florida, Gainesville, Florida 32610, United States
- Center
for Natural Products, Drug Discovery & Development (CNPD3), College
of Pharmacy, University of Florida, Gainesville, Florida 32610, United States
| | - Shainnel O. Eans
- Department
of Pharmacodynamics, College of Pharmacy, University of Florida, Gainesville, Florida 32610, United States
- Center
for Natural Products, Drug Discovery & Development (CNPD3), College
of Pharmacy, University of Florida, Gainesville, Florida 32610, United States
| | - Heather M. Stacy
- Department
of Pharmacodynamics, College of Pharmacy, University of Florida, Gainesville, Florida 32610, United States
- Center
for Natural Products, Drug Discovery & Development (CNPD3), College
of Pharmacy, University of Florida, Gainesville, Florida 32610, United States
| | - Guqin Shi
- Department
of Medicinal Chemistry, College of Pharmacy, University of Florida, Gainesville, Florida 32610, United States
- Center
for Natural Products, Drug Discovery & Development (CNPD3), College
of Pharmacy, University of Florida, Gainesville, Florida 32610, United States
| | - Ranjala Ratnayake
- Department
of Medicinal Chemistry, College of Pharmacy, University of Florida, Gainesville, Florida 32610, United States
- Center
for Natural Products, Drug Discovery & Development (CNPD3), College
of Pharmacy, University of Florida, Gainesville, Florida 32610, United States
| | - James R. Rocca
- Department
of Medicinal Chemistry, College of Pharmacy, University of Florida, Gainesville, Florida 32610, United States
- McKnight
Brain Institute, University of Florida, Gainesville, Florida 32610, United States
| | - Khalil A. Abboud
- Department
of Chemistry, University of Florida, Gainesville, Florida 32610, United States
| | - Chenglong Li
- Department
of Medicinal Chemistry, College of Pharmacy, University of Florida, Gainesville, Florida 32610, United States
- Center
for Natural Products, Drug Discovery & Development (CNPD3), College
of Pharmacy, University of Florida, Gainesville, Florida 32610, United States
| | - Hendrik Luesch
- Department
of Medicinal Chemistry, College of Pharmacy, University of Florida, Gainesville, Florida 32610, United States
- Center
for Natural Products, Drug Discovery & Development (CNPD3), College
of Pharmacy, University of Florida, Gainesville, Florida 32610, United States
| | - Jay P. McLaughlin
- Department
of Pharmacodynamics, College of Pharmacy, University of Florida, Gainesville, Florida 32610, United States
- Center
for Natural Products, Drug Discovery & Development (CNPD3), College
of Pharmacy, University of Florida, Gainesville, Florida 32610, United States
| | - Robert W. Huigens
- Department
of Medicinal Chemistry, College of Pharmacy, University of Florida, Gainesville, Florida 32610, United States
- Center
for Natural Products, Drug Discovery & Development (CNPD3), College
of Pharmacy, University of Florida, Gainesville, Florida 32610, United States
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13
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Laroche B, Bouvarel T, Louis-Sylvestre M, Nay B. Diversity-oriented synthesis of 17-spirosteroids. Beilstein J Org Chem 2020; 16:880-887. [PMID: 32461769 PMCID: PMC7214869 DOI: 10.3762/bjoc.16.79] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/25/2020] [Accepted: 04/17/2020] [Indexed: 01/04/2023] Open
Abstract
A diversity-oriented synthesis (DOS) approach has been used to functionalize 17-ethynyl-17-hydroxysteroids through a one-pot procedure involving a ring-closing enyne metathesis (RCEYM) and a Diels–Alder reaction on the resulting diene, under microwave irradiations. Taking advantage of the propargyl alcohol moiety present on commercially available steroids, this classical strategy was applied to mestranol and lynestrenol, giving a collection of new complex 17-spirosteroids.
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Affiliation(s)
- Benjamin Laroche
- Unité Molécules de Communication et Adaptations des Micro-organismes (MCAM), Muséum National d'Histoire Naturelle, CNRS, Paris, France
| | - Thomas Bouvarel
- Unité Molécules de Communication et Adaptations des Micro-organismes (MCAM), Muséum National d'Histoire Naturelle, CNRS, Paris, France
| | - Martin Louis-Sylvestre
- Laboratoire de Synthèse Organique, Ecole Polytechnique, CNRS, ENSTA, Institut Polytechnique de Paris, Palaiseau Cedex, France
| | - Bastien Nay
- Unité Molécules de Communication et Adaptations des Micro-organismes (MCAM), Muséum National d'Histoire Naturelle, CNRS, Paris, France.,Laboratoire de Synthèse Organique, Ecole Polytechnique, CNRS, ENSTA, Institut Polytechnique de Paris, Palaiseau Cedex, France
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14
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Synthetic biology based construction of biological activity-related library of fungal decalin-containing diterpenoid pyrones. Nat Commun 2020; 11:1830. [PMID: 32286350 PMCID: PMC7156458 DOI: 10.1038/s41467-020-15664-4] [Citation(s) in RCA: 52] [Impact Index Per Article: 13.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/18/2019] [Accepted: 03/19/2020] [Indexed: 12/12/2022] Open
Abstract
A synthetic biology method based on heterologous biosynthesis coupled with genome mining is a promising approach for increasing the opportunities to rationally access natural product with novel structures and biological activities through total biosynthesis and combinatorial biosynthesis. Here, we demonstrate the advantage of the synthetic biology method to explore biological activity-related chemical space through the comprehensive heterologous biosynthesis of fungal decalin-containing diterpenoid pyrones (DDPs). Genome mining reveals putative DDP biosynthetic gene clusters distributed in five fungal genera. In addition, we design extended DDP pathways by combinatorial biosynthesis. In total, ten DDP pathways, including five native pathways, four extended pathways and one shunt pathway, are heterologously reconstituted in a genetically tractable heterologous host, Aspergillus oryzae, resulting in the production of 22 DDPs, including 15 new analogues. We also demonstrate the advantage of expanding the diversity of DDPs to probe various bioactive molecules through a wide range of biological evaluations. Combining genome mining and heterologous expression in a genetically tractable host can lead to bioactive natural products discovery and production. Here, the authors employ this strategy for new decalin-containing diterpenoid pyrenes production by expressing native, extended, and shunt pathways in Aspergillus oryzae.
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15
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Paciaroni NG, Perry DL, Norwood VM, Murillo-Solano C, Collins J, Tenneti S, Chakrabarti D, Huigens RW. Re-Engineering of Yohimbine's Biological Activity through Ring Distortion: Identification and Structure-Activity Relationships of a New Class of Antiplasmodial Agents. ACS Infect Dis 2020; 6:159-167. [PMID: 31913597 DOI: 10.1021/acsinfecdis.9b00380] [Citation(s) in RCA: 18] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
Abstract
Select natural products are ideal starting points for ring distortion, or the dramatic altering of inherently complex molecules through short synthetic pathways, to generate an array of novel compounds with diverse skeletal architectures. A major goal of our ring distortion approach is to re-engineer the biological activity of indole alkaloids to identify new compounds with diverse biological activities in areas of significance to human health and medicine. In this study, we re-engineered the biological activity of the indole alkaloid yohimbine through ring rearrangement and ring cleavage synthesis pathways to discover new series of antiplasmodial agents. One new compound, Y7j, was found to demonstrate good potency against chloroquine-resistant Plasmodium falciparum Dd2 cells (EC50 = 0.33 μM) without eliciting cytotoxicity against HepG2 cells (EC50 > 40 μM). Y7j demonstrated stage-specific action against parasites at the late ring/trophozoite stage. A series of analogues was synthesized to gain structure-activity relationship insights, and we learned that both benzyl groups of Y7j are required for activity and fine-tuning of antiplasmodial activities could be accomplished by changing substitution patterns on the benzyl moieties. This study demonstrates the potential for ring distortion to drive new discoveries and change paradigms in chemical biology and drug discovery.
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Affiliation(s)
- Nicholas G. Paciaroni
- Department of Medicinal Chemistry, Center for Natural Products, Drug Discovery and Development (CNPD3), University of Florida, 1345 Center Drive, Gainesville, Florida 32610, United States
| | - David L. Perry
- Division of Molecular Biology and Microbiology, Burnett School of Biomedical Sciences, University of Central Florida, 12722 Research Parkway, Orlando, Florida 32826, United States
| | - Verrill M. Norwood
- Department of Medicinal Chemistry, Center for Natural Products, Drug Discovery and Development (CNPD3), University of Florida, 1345 Center Drive, Gainesville, Florida 32610, United States
| | - Claribel Murillo-Solano
- Division of Molecular Biology and Microbiology, Burnett School of Biomedical Sciences, University of Central Florida, 12722 Research Parkway, Orlando, Florida 32826, United States
| | - Jennifer Collins
- Division of Molecular Biology and Microbiology, Burnett School of Biomedical Sciences, University of Central Florida, 12722 Research Parkway, Orlando, Florida 32826, United States
| | - Srinivasarao Tenneti
- Department of Medicinal Chemistry, Center for Natural Products, Drug Discovery and Development (CNPD3), University of Florida, 1345 Center Drive, Gainesville, Florida 32610, United States
| | - Debopam Chakrabarti
- Division of Molecular Biology and Microbiology, Burnett School of Biomedical Sciences, University of Central Florida, 12722 Research Parkway, Orlando, Florida 32826, United States
| | - Robert W. Huigens
- Department of Medicinal Chemistry, Center for Natural Products, Drug Discovery and Development (CNPD3), University of Florida, 1345 Center Drive, Gainesville, Florida 32610, United States
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16
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Iwata T, Fukase K, Nakao Y, Tanaka K. Efficient Synthesis of Marine Alkaloid Ageladine A and its Structural Modification for Exploring New Biological Activity. J SYN ORG CHEM JPN 2020. [DOI: 10.5059/yukigoseikyokaishi.78.51] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/09/2023]
Affiliation(s)
| | | | | | - Katsunori Tanaka
- Biofunctional Synthetic Chemistry Laboratory, RIKEN Cluster for Pioneering Research
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17
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Abstract
Many natural products have been used as drugs for the treatment of diverse indications. Although most U.S. pharmaceutical companies have reduced or eliminated their in-house natural-product research over the years, new approaches for compound screening and chemical synthesis are resurrecting interest in exploring the therapeutic value of natural products. The aim of this commentary is to review emerging strategies and techniques that have made natural products a viable strategic choice for inclusion in drug discovery programs. Published 2019. U.S. Government.
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Affiliation(s)
- John A Beutler
- Molecular Targets Program, Center for Cancer Research, National Cancer Institute, Frederick, Maryland
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18
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Lenci E, Menchi G, Saldívar-Gonzalez FI, Medina-Franco JL, Trabocchi A. Bicyclic acetals: biological relevance, scaffold analysis, and applications in diversity-oriented synthesis. Org Biomol Chem 2019; 17:1037-1052. [DOI: 10.1039/c8ob02808g] [Citation(s) in RCA: 27] [Impact Index Per Article: 5.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/10/2023]
Abstract
The chemoinformatics analysis of fused, spiro, and bridged bicyclic acetals is instrumental for the DOS of natural product-inspired molecular collections.
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Affiliation(s)
- Elena Lenci
- Department of Chemistry “Ugo Schiff”
- University of Florence
- 50019 Sesto Fiorentino
- Italy
| | - Gloria Menchi
- Department of Chemistry “Ugo Schiff”
- University of Florence
- 50019 Sesto Fiorentino
- Italy
- Interdepartmental Center for Preclinical Development of Molecular Imaging (CISPIM)
| | - Fernanda I. Saldívar-Gonzalez
- School of Chemistry
- Department of Pharmacy
- Universidad Nacional Autónoma de México
- Avenida Universidad 3000
- Mexico City 04510
| | - José L. Medina-Franco
- School of Chemistry
- Department of Pharmacy
- Universidad Nacional Autónoma de México
- Avenida Universidad 3000
- Mexico City 04510
| | - Andrea Trabocchi
- Department of Chemistry “Ugo Schiff”
- University of Florence
- 50019 Sesto Fiorentino
- Italy
- Interdepartmental Center for Preclinical Development of Molecular Imaging (CISPIM)
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19
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Konaklieva MI. Addressing Antimicrobial Resistance through New Medicinal and Synthetic Chemistry Strategies. SLAS DISCOVERY 2018; 24:419-439. [PMID: 30523713 DOI: 10.1177/2472555218812657] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
Abstract
Over the past century, a multitude of derivatives of structural scaffolds with established antimicrobial potential have been prepared and tested, and a variety of new scaffolds have emerged. The effectiveness of antibiotics, however, is in sharp decline because of the emergence of drug-resistant microorganisms. The prevalence of drug resistance, both in clinical and community settings, is a consequence of bacterial ingenuity in altering pathways and/or cell morphology, making it a persistent threat to human health. The fundamental ability of pathogens to survive in a multitude of habitats can be triggered by recognition of chemical signals that warn organisms of exposure to a potentially harmful environment. Host immune defenses, including reactive oxygen intermediates and antibacterial substances, are among the multitude of chemical signals that can subsequently trigger expression of phenotypes better adapted for survival in that hostile environment. Thus, resistance development appears to be unavoidable, which leads to the conclusion that developing an alternative perspective for treatment options is vital. This review will discuss emerging medicinal chemistry approaches for addressing the global multidrug resistance in the 21st century.
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20
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Silva DG, Emery FDS. Strategies towards expansion of chemical space of natural product-based compounds to enable drug discovery. BRAZ J PHARM SCI 2018. [DOI: 10.1590/s2175-97902018000001004] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/25/2022] Open
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21
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Zhu F, Xie Y, Zhang J, Tian G, Qin H, Yang X, Hu T, He Y, Aisa HA, Shen J. A Facile Epoxide Aminolysis Promoted by ( t-BuO) 2Mg and Its Application to the Synthesis of Efinaconazole. Org Process Res Dev 2018. [DOI: 10.1021/acs.oprd.8b00081] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Fuqiang Zhu
- Key Laboratory of Plant Resources and Chemistry in Arid Regions, Xinjiang Technical Institute of Physics and Chemistry, Chinese Academy of Sciences, South Beijing Road 40-1, Urumqi, Xinjiang 830011, P. R. China
- University of Chinese Academy of Sciences, No. 19A Yuquan Road, Beijing 100049, P. R. China
| | - Yuanchao Xie
- CAS Key Laboratory for Receptor Research, Shanghai Institute of Materia Medica, Chinese Academy of Sciences, 555 Zuchongzhi Road, Shanghai 201203, P. R. China
| | - Jian Zhang
- Topharman Shanghai Co., Ltd., Building 1, No. 388 Jialilue Road, Zhangjiang Hitech Park, Shanghai 201209, P. R. China
| | - Guanghui Tian
- Topharman Shanghai Co., Ltd., Building 1, No. 388 Jialilue Road, Zhangjiang Hitech Park, Shanghai 201209, P. R. China
| | - Hongjian Qin
- Topharman Shanghai Co., Ltd., Building 1, No. 388 Jialilue Road, Zhangjiang Hitech Park, Shanghai 201209, P. R. China
| | - Xiaojun Yang
- Topharman Shanghai Co., Ltd., Building 1, No. 388 Jialilue Road, Zhangjiang Hitech Park, Shanghai 201209, P. R. China
| | - Tianwen Hu
- Topharman Shanghai Co., Ltd., Building 1, No. 388 Jialilue Road, Zhangjiang Hitech Park, Shanghai 201209, P. R. China
| | - Yang He
- CAS Key Laboratory for Receptor Research, Shanghai Institute of Materia Medica, Chinese Academy of Sciences, 555 Zuchongzhi Road, Shanghai 201203, P. R. China
| | - Haji A. Aisa
- Key Laboratory of Plant Resources and Chemistry in Arid Regions, Xinjiang Technical Institute of Physics and Chemistry, Chinese Academy of Sciences, South Beijing Road 40-1, Urumqi, Xinjiang 830011, P. R. China
| | - Jingshan Shen
- CAS Key Laboratory for Receptor Research, Shanghai Institute of Materia Medica, Chinese Academy of Sciences, 555 Zuchongzhi Road, Shanghai 201203, P. R. China
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22
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Novel Topologically Complex Scaffold Derived from Alkaloid Haemanthamine. Molecules 2018; 23:molecules23020255. [PMID: 29382096 PMCID: PMC6017887 DOI: 10.3390/molecules23020255] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/08/2018] [Revised: 01/24/2018] [Accepted: 01/25/2018] [Indexed: 01/21/2023] Open
Abstract
The generation of natural product-like compound collections has become an important area of research due to low hit rates found with synthetic high-throughput libraries. One method of generating compounds occupying the areas of chemical space not accessible to synthetic planar heterocyclic structures is the utilization of natural products as starting materials. In the current work, using a ring-closing iodoalkoxylation reaction, alkaloid haemanthamine was transformed into a unique structural framework possessing an intricate ring system and a large number of stereocenters. The structure of the new compound was confirmed with an X-ray analysis. A small number of derivatives of this new compound were synthesized as a demonstration of the possibility of generating a large natural product-like compound collection based on the new structural framework.
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23
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Oshima Y, Kikuchi H. Developments toward the Production of Diverse Natural-Product-Like Compounds: Diversity-Oriented Synthesis and Diversity-Enhanced Extracts. HETEROCYCLES 2018. [DOI: 10.3987/rev-18-885] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
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24
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Shimokawa J. Synthetic Studies on Heteropolycyclic Natural Products: Development of Divergent Strategy. Chem Pharm Bull (Tokyo) 2018; 66:105-115. [DOI: 10.1248/cpb.c17-00819] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
Affiliation(s)
- Jun Shimokawa
- Graduate School of Pharmaceutical Sciences, Nagoya University
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25
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Late-stage chemoselective functional-group manipulation of bioactive natural products with super-electrophilic silylium ions. Nat Chem 2017; 10:85-90. [PMID: 29256501 DOI: 10.1038/nchem.2863] [Citation(s) in RCA: 34] [Impact Index Per Article: 4.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/14/2016] [Accepted: 08/02/2017] [Indexed: 11/08/2022]
Abstract
The selective (and controllable) modification of complex molecules with disparate functional groups (for example, natural products) is a long-standing challenge that has been addressed using catalysts tuned to perform singular transformations (for example, C-H hydroxylation). A method whereby reactions with diverse functional groups within a single natural product are feasible depending on which catalyst or reagent is chosen would widen the possible structures one could obtain. Fluoroarylborane catalysts can heterolytically split Si-H bonds to yield an oxophilic silylium (R3Si+) equivalent along with a reducing (H-) equivalent. Together, these reactive intermediates enable the reduction of multiple functional groups. Exogenous phosphine Lewis bases further modify the catalyst speciation and attenuate aggressive silylium ions for the selective modification of complex natural products. Manipulation of the catalyst, silane reagent and the reaction conditions provides experimental control over which site is modified (and how). Applying this catalytic method to complex bioactive compounds (natural products or drugs) provides a powerful tool for studying structure-activity relationships.
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26
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Scott SK, Grenning AJ. An Enyne Cope Rearrangement Enables Polycycloalkane Synthesis from Readily Available Starting Materials. Angew Chem Int Ed Engl 2017. [DOI: 10.1002/ange.201703186] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
Affiliation(s)
- Sarah K. Scott
- Department of Chemistry; University of Florida; PO Box 117200 Gainesville FL 32611-7200 USA
| | - Alexander J. Grenning
- Department of Chemistry; University of Florida; PO Box 117200 Gainesville FL 32611-7200 USA
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27
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Scott SK, Grenning AJ. An Enyne Cope Rearrangement Enables Polycycloalkane Synthesis from Readily Available Starting Materials. Angew Chem Int Ed Engl 2017; 56:8125-8129. [DOI: 10.1002/anie.201703186] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/27/2017] [Indexed: 11/07/2022]
Affiliation(s)
- Sarah K. Scott
- Department of Chemistry; University of Florida; PO Box 117200 Gainesville FL 32611-7200 USA
| | - Alexander J. Grenning
- Department of Chemistry; University of Florida; PO Box 117200 Gainesville FL 32611-7200 USA
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28
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Tejedor D, Delgado-Hernández S, Carballo RM, Dapueto R, Mena-Rejón GJ, García-Tellado F. Diversifying Complexity by Domino Benzannulation of Polycyclic Natural Products. J Org Chem 2017; 82:5328-5336. [PMID: 28467064 DOI: 10.1021/acs.joc.7b00654] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/11/2023]
Abstract
Herein we describe a salicylaldehyde-annulation reaction as a plug and play toolkit to diversify the complexity of naturally occurring ketones. The protocol entails the transformation of the polycyclic natural ketone into its propargyl vinyl ether derivative (two synthetic steps) and its microwave-assisted imidazole-catalyzed domino rearrangement to generate the salicylaldehyde ring. This annexed unit allows further synthetic transformations: e.g., the installation of a pharmacophore module to generate natural product-pharmacophore hybrids endowed with unknown biological (pharmaceutical) annotations.
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Affiliation(s)
- David Tejedor
- Instituto de Productos Naturales y Agrobiología, Consejo Superior de Investigaciones Científicas , Avda. Astrofísico Francisco Sánchez 3, 38 206 La Laguna, Tenerife, Islas Canarias, Spain
| | - Samuel Delgado-Hernández
- Instituto de Productos Naturales y Agrobiología, Consejo Superior de Investigaciones Científicas , Avda. Astrofísico Francisco Sánchez 3, 38 206 La Laguna, Tenerife, Islas Canarias, Spain
| | - Rubén M Carballo
- Laboratorio de Química Farmacéutica, Facultad de Química, Universidad Autónoma de Yucatán , C. 43 No. 613 x C. 90 Col. Inalámbrica, C.P. 97069, Mérida, Yucatán, México
| | - Rosina Dapueto
- Instituto de Productos Naturales y Agrobiología, Consejo Superior de Investigaciones Científicas , Avda. Astrofísico Francisco Sánchez 3, 38 206 La Laguna, Tenerife, Islas Canarias, Spain
| | - Gonzalo J Mena-Rejón
- Laboratorio de Química Farmacéutica, Facultad de Química, Universidad Autónoma de Yucatán , C. 43 No. 613 x C. 90 Col. Inalámbrica, C.P. 97069, Mérida, Yucatán, México
| | - Fernando García-Tellado
- Instituto de Productos Naturales y Agrobiología, Consejo Superior de Investigaciones Científicas , Avda. Astrofísico Francisco Sánchez 3, 38 206 La Laguna, Tenerife, Islas Canarias, Spain
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29
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Ciardiello JJ, Stewart HL, Sore HF, Galloway WRJD, Spring DR. A novel complexity-to-diversity strategy for the diversity-oriented synthesis of structurally diverse and complex macrocycles from quinine. Bioorg Med Chem 2017; 25:2825-2843. [PMID: 28283333 DOI: 10.1016/j.bmc.2017.02.060] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/23/2017] [Accepted: 02/26/2017] [Indexed: 01/15/2023]
Abstract
Recent years have witnessed a global decline in the productivity and advancement of the pharmaceutical industry. A major contributing factor to this is the downturn in drug discovery successes. This can be attributed to the lack of structural (particularly scaffold) diversity and structural complexity exhibited by current small molecule screening collections. Macrocycles have been shown to exhibit a diverse range of biological properties, with over 100 natural product-derived examples currently marketed as FDA-approved drugs. Despite this, synthetic macrocycles are widely considered to be a poorly explored structural class within drug discovery, which can be attributed to their synthetic intractability. Herein we describe a novel complexity-to-diversity strategy for the diversity-oriented synthesis of novel, structurally complex and diverse macrocyclic scaffolds from natural product starting materials. This approach exploits the inherent structural (including functional) and stereochemical complexity of natural products in order to rapidly generate diversity and complexity. Readily-accessible natural product-derived intermediates serve as structural templates which can be divergently functionalized with different building blocks to generate a diverse range of acyclic precursors. Subsequent macrocyclisation then furnishes compounds that are each based around a distinct molecular scaffold. Thus, high levels of library scaffold diversity can be rapidly achieved. In this proof-of-concept study, the natural product quinine was used as the foundation for library synthesis, and six novel structurally diverse, highly complex and functionalized macrocycles were generated.
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Affiliation(s)
- J J Ciardiello
- Department of Chemistry, The University of Cambridge, Lensfield Road, Cambridge CB2 1EW, United Kingdom
| | - H L Stewart
- Department of Chemistry, The University of Cambridge, Lensfield Road, Cambridge CB2 1EW, United Kingdom
| | - H F Sore
- Department of Chemistry, The University of Cambridge, Lensfield Road, Cambridge CB2 1EW, United Kingdom
| | - W R J D Galloway
- Department of Chemistry, The University of Cambridge, Lensfield Road, Cambridge CB2 1EW, United Kingdom
| | - D R Spring
- Department of Chemistry, The University of Cambridge, Lensfield Road, Cambridge CB2 1EW, United Kingdom.
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30
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Lee YC, Patil S, Golz C, Strohmann C, Ziegler S, Kumar K, Waldmann H. A ligand-directed divergent catalytic approach to establish structural and functional scaffold diversity. Nat Commun 2017; 8:14043. [PMID: 28195128 PMCID: PMC5316858 DOI: 10.1038/ncomms14043] [Citation(s) in RCA: 52] [Impact Index Per Article: 7.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/04/2016] [Accepted: 11/23/2016] [Indexed: 12/21/2022] Open
Abstract
The selective transformation of different starting materials by different metal catalysts under individually optimized reaction conditions to structurally different intermediates and products is a powerful approach to generate diverse molecular scaffolds. In a more unified albeit synthetically challenging strategy, common starting materials would be exposed to a common metal catalysis, leading to a common intermediate and giving rise to different scaffolds by tuning the reactivity of the metal catalyst through different ligands. Herein we present a ligand-directed synthesis approach for the gold(I)-catalysed cycloisomerization of oxindole-derived 1,6-enynes that affords distinct molecular scaffolds following different catalytic reaction pathways. Varying electronic properties and the steric demand of the gold(I) ligands steers the fate of a common intermediary gold carbene to selectively form spirooxindoles, quinolones or df-oxindoles. Investigation of a synthesized compound collection in cell-based assays delivers structurally novel, selective modulators of the Hedgehog and Wnt signalling pathways, autophagy and of cellular proliferation. Synthetic methods that efficiently construct structurally diverse molecular scaffolds are attractive routes to diversely bioactive molecules. Here the authors report a method whereby common starting materials are converted to structurally and functionally diverse products by changing the catalyst ligand.
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Affiliation(s)
- Yen-Chun Lee
- Max-Planck-Institut für Molekulare Physiologie, Abteilung Chemische Biologie, Otto-Hahn-Straße 11, Dortmund 44227, Germany.,Technische Universität Dortmund, Fakultät Chemie, Chemische Biologie, Otto-Hahn-Straße 6, Dortmund 44221, Germany
| | - Sumersing Patil
- Max-Planck-Institut für Molekulare Physiologie, Abteilung Chemische Biologie, Otto-Hahn-Straße 11, Dortmund 44227, Germany.,Technische Universität Dortmund, Fakultät Chemie, Chemische Biologie, Otto-Hahn-Straße 6, Dortmund 44221, Germany
| | - Christopher Golz
- Technische Universität Dortmund, Fakultät Chemie, Chemische Biologie, Otto-Hahn-Straße 6, Dortmund 44221, Germany
| | - Carsten Strohmann
- Technische Universität Dortmund, Fakultät Chemie, Chemische Biologie, Otto-Hahn-Straße 6, Dortmund 44221, Germany
| | - Slava Ziegler
- Max-Planck-Institut für Molekulare Physiologie, Abteilung Chemische Biologie, Otto-Hahn-Straße 11, Dortmund 44227, Germany
| | - Kamal Kumar
- Max-Planck-Institut für Molekulare Physiologie, Abteilung Chemische Biologie, Otto-Hahn-Straße 11, Dortmund 44227, Germany
| | - Herbert Waldmann
- Max-Planck-Institut für Molekulare Physiologie, Abteilung Chemische Biologie, Otto-Hahn-Straße 11, Dortmund 44227, Germany.,Technische Universität Dortmund, Fakultät Chemie, Chemische Biologie, Otto-Hahn-Straße 6, Dortmund 44221, Germany
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31
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Paciaroni NG, Ratnayake R, Matthews JH, Norwood VM, Arnold AC, Dang LH, Luesch H, Huigens RW. A Tryptoline Ring-Distortion Strategy Leads to Complex and Diverse Biologically Active Molecules from the Indole Alkaloid Yohimbine. Chemistry 2017; 23:4327-4335. [PMID: 27900785 DOI: 10.1002/chem.201604795] [Citation(s) in RCA: 51] [Impact Index Per Article: 7.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/12/2016] [Indexed: 02/06/2023]
Abstract
High-throughput screening (HTS) is the primary driver to current drug-discovery efforts. New therapeutic agents that enter the market are a direct reflection of the structurally simple compounds that make up screening libraries. Unlike medically relevant natural products (e.g., morphine), small molecules currently being screened have a low fraction of sp3 character and few, if any, stereogenic centers. Although simple compounds have been useful in drugging certain biological targets (e.g., protein kinases), more sophisticated targets (e.g., transcription factors) have largely evaded the discovery of new clinical agents from screening collections. Herein, a tryptoline ring-distortion strategy is described that enables the rapid synthesis of 70 complex and diverse compounds from yohimbine (1); an indole alkaloid. The compounds that were synthesized had architecturally complex and unique scaffolds, unlike 1 and other scaffolds. These compounds were subjected to phenotypic screens and reporter gene assays, leading to the identification of new compounds that possessed various biological activities, including antiproliferative activities against cancer cells with functional hypoxia-inducible factors, nitric oxide inhibition, and inhibition and activation of the antioxidant response element. This tryptoline ring-distortion strategy can begin to address diversity problems in screening libraries, while occupying biologically relevant chemical space in areas critical to human health.
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Affiliation(s)
- Nicholas G Paciaroni
- Department of Medicinal Chemistry, University of Florida, Gainesville, FL, 32610, USA.,Center for Natural Product Drug Discovery and Development (CNPD3), University of Florida, Gainesville, FL, 32610, USA
| | - Ranjala Ratnayake
- Department of Medicinal Chemistry, University of Florida, Gainesville, FL, 32610, USA.,Center for Natural Product Drug Discovery and Development (CNPD3), University of Florida, Gainesville, FL, 32610, USA
| | - James H Matthews
- Department of Medicinal Chemistry, University of Florida, Gainesville, FL, 32610, USA.,Center for Natural Product Drug Discovery and Development (CNPD3), University of Florida, Gainesville, FL, 32610, USA
| | - Verrill M Norwood
- Department of Medicinal Chemistry, University of Florida, Gainesville, FL, 32610, USA.,Center for Natural Product Drug Discovery and Development (CNPD3), University of Florida, Gainesville, FL, 32610, USA
| | - Austin C Arnold
- Department of Medicinal Chemistry, University of Florida, Gainesville, FL, 32610, USA
| | - Long H Dang
- Department of Medicinal Chemistry, University of Florida, Gainesville, FL, 32610, USA.,Center for Natural Product Drug Discovery and Development (CNPD3), University of Florida, Gainesville, FL, 32610, USA.,Department of Medicine, University of Florida, Gainesville, FL, 32610, USA
| | - Hendrik Luesch
- Department of Medicinal Chemistry, University of Florida, Gainesville, FL, 32610, USA.,Center for Natural Product Drug Discovery and Development (CNPD3), University of Florida, Gainesville, FL, 32610, USA
| | - Robert W Huigens
- Department of Medicinal Chemistry, University of Florida, Gainesville, FL, 32610, USA.,Center for Natural Product Drug Discovery and Development (CNPD3), University of Florida, Gainesville, FL, 32610, USA
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32
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Ma SJ, Yu J, Fan HF, Li ZH, Zhang AL, Zhang Q. Exploring sesquiterpene alkaloid-like scaffolds via Beckmann-transannular remodelling of beta-caryophyllene. RSC Adv 2017. [DOI: 10.1039/c7ra08196k] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
Cascaded Beckmann-transannular protocol transformed macrocyclic beta-caryophyllene into poly-heterocyclic unnatural skeletal types.
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Affiliation(s)
- Shuang-Jiang Ma
- Shaanxi Key Laboratory of Natural Products & Chemical Biology
- College of Chemistry & Pharmacy
- Northwest A&F University
- PR China
| | - Jie Yu
- Shaanxi Key Laboratory of Natural Products & Chemical Biology
- College of Chemistry & Pharmacy
- Northwest A&F University
- PR China
| | - Hua-Fang Fan
- Shaanxi Key Laboratory of Natural Products & Chemical Biology
- College of Chemistry & Pharmacy
- Northwest A&F University
- PR China
| | - Zi-Han Li
- College of Life Sciences
- Northwest A&F University
- PR China
| | - An-Ling Zhang
- Shaanxi Key Laboratory of Natural Products & Chemical Biology
- College of Chemistry & Pharmacy
- Northwest A&F University
- PR China
| | - Qiang Zhang
- Shaanxi Key Laboratory of Natural Products & Chemical Biology
- College of Chemistry & Pharmacy
- Northwest A&F University
- PR China
- State Key Laboratory of Medicinal Chemical Biology
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33
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Kikuchi H, Oshima Y. Development of Natural Product-Like Compound Library for Drug Discovery Based on Diversity-Enhanced Extracts. J SYN ORG CHEM JPN 2017. [DOI: 10.5059/yukigoseikyokaishi.75.349] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
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34
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Lahtigui O, Emmetiere F, Zhang W, Jirmo L, Toledo-Roy S, Hershberger JC, Macho JM, Grenning AJ. Assembly of Terpenoid Cores by a Simple, Tunable Strategy. Angew Chem Int Ed Engl 2016. [DOI: 10.1002/ange.201608863] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/10/2023]
Affiliation(s)
- Ouidad Lahtigui
- Department of Chemistry; University of Florida; PO Box 117200 Gainesville FL 32611-7200 USA
| | - Fabien Emmetiere
- Department of Chemistry; University of Florida; PO Box 117200 Gainesville FL 32611-7200 USA
| | - Wei Zhang
- Department of Chemistry; University of Florida; PO Box 117200 Gainesville FL 32611-7200 USA
| | - Liban Jirmo
- Department of Chemistry; University of Florida; PO Box 117200 Gainesville FL 32611-7200 USA
| | - Samira Toledo-Roy
- Department of Chemistry; University of Florida; PO Box 117200 Gainesville FL 32611-7200 USA
| | - John C. Hershberger
- Department of Chemistry and Physics; Arkansas State University; Jonesboro AR 72467 USA
| | - Jocelyn M. Macho
- Department of Chemistry; University of Florida; PO Box 117200 Gainesville FL 32611-7200 USA
| | - Alexander J. Grenning
- Department of Chemistry; University of Florida; PO Box 117200 Gainesville FL 32611-7200 USA
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35
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Lahtigui O, Emmetiere F, Zhang W, Jirmo L, Toledo-Roy S, Hershberger JC, Macho JM, Grenning AJ. Assembly of Terpenoid Cores by a Simple, Tunable Strategy. Angew Chem Int Ed Engl 2016; 55:15792-15796. [DOI: 10.1002/anie.201608863] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/10/2016] [Revised: 10/24/2016] [Indexed: 12/28/2022]
Affiliation(s)
- Ouidad Lahtigui
- Department of Chemistry; University of Florida; PO Box 117200 Gainesville FL 32611-7200 USA
| | - Fabien Emmetiere
- Department of Chemistry; University of Florida; PO Box 117200 Gainesville FL 32611-7200 USA
| | - Wei Zhang
- Department of Chemistry; University of Florida; PO Box 117200 Gainesville FL 32611-7200 USA
| | - Liban Jirmo
- Department of Chemistry; University of Florida; PO Box 117200 Gainesville FL 32611-7200 USA
| | - Samira Toledo-Roy
- Department of Chemistry; University of Florida; PO Box 117200 Gainesville FL 32611-7200 USA
| | - John C. Hershberger
- Department of Chemistry and Physics; Arkansas State University; Jonesboro AR 72467 USA
| | - Jocelyn M. Macho
- Department of Chemistry; University of Florida; PO Box 117200 Gainesville FL 32611-7200 USA
| | - Alexander J. Grenning
- Department of Chemistry; University of Florida; PO Box 117200 Gainesville FL 32611-7200 USA
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36
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Karimov R, Sharma A, Hartwig JF. Late Stage Azidation of Complex Molecules. ACS CENTRAL SCIENCE 2016; 2:715-724. [PMID: 27800554 PMCID: PMC5084078 DOI: 10.1021/acscentsci.6b00214] [Citation(s) in RCA: 106] [Impact Index Per Article: 13.3] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/01/2016] [Indexed: 05/29/2023]
Abstract
Selective functionalization of complex scaffolds is a promising approach to alter the pharmacological profiles of natural products and their derivatives. We report the site-selective azidation of benzylic and aliphatic C-H bonds in complex molecules catalyzed by the combination of Fe(OAc)2 and a PyBox ligand. The same system also catalyzes the trifluoromethyl azidation of olefins to form derivatives of natural products containing both fluorine atoms and azides. In general, both reactions tolerate a wide range of functional groups and occur with predictable regioselectivity. Azides obtained by functionalization of C-H and C=C bonds were converted to the corresponding amines, amides, and triazoles, thus providing a wide variety of nitrogen-containing complex molecules.
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37
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Iwata T, Otsuka S, Tsubokura K, Kurbangalieva A, Arai D, Fukase K, Nakao Y, Tanaka K. One-Pot Evolution of Ageladine A through a Bio-Inspired Cascade towards Selective Modulators of Neuronal Differentiation. Chemistry 2016; 22:14707-16. [PMID: 27557614 DOI: 10.1002/chem.201602651] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/04/2016] [Indexed: 12/31/2022]
Abstract
A bio-inspired cascade reaction has been developed for the construction of the marine natural product ageladine A and a de novo array of its N1-substituted derivatives. This cascade features a 2-aminoimidazole formation that is modeled after an arginine post-translational modification and an aza-electrocyclization. It can be effectively carried out in a one-pot procedure from simple anilines or guanidines, leading to structural analogues of ageladine A that had been otherwise synthetically inaccessible. We found that some compounds out of this structurally novel library show a significant activity in modulating the neural differentiation. Namely, these compounds selectively activate or inhibit the differentiation of neural stem cells to neurons, while being negligible in the differentiation to astrocytes. This study represents a successful case in which the native biofunction of a natural product could be altered by structural modifications.
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Affiliation(s)
- Takayuki Iwata
- Biofunctional Synthetic Chemistry Laboratory, RIKEN, 2-1 Hirosawa, Wako-shi, Saitama, 351-0198, Japan
- Department of Chemistry, Graduate School of Science, Osaka University, 1-1 Machikaneyama-cho, Toyonaka-shi, Osaka, 560-0043, Japan
| | - Satoshi Otsuka
- Department of Chemistry and Biochemistry, School of Advanced Science and Engineering, Waseda University, 3-4-1 Okubo, Shinjuku-ku, Tokyo, 169-8555, Japan
| | - Kazuki Tsubokura
- Biofunctional Synthetic Chemistry Laboratory, RIKEN, 2-1 Hirosawa, Wako-shi, Saitama, 351-0198, Japan
- Department of Chemistry and Biochemistry, School of Advanced Science and Engineering, Waseda University, 3-4-1 Okubo, Shinjuku-ku, Tokyo, 169-8555, Japan
| | - Almira Kurbangalieva
- Biofunctional Chemistry Laboratory, A. Butlerov Institute of Chemistry, Kazan Federal University, 18 Kremlyovskaya Street, Kazan, 420008, Russia
| | - Daisuke Arai
- Department of Chemistry and Biochemistry, School of Advanced Science and Engineering, Waseda University, 3-4-1 Okubo, Shinjuku-ku, Tokyo, 169-8555, Japan
- Research Institute for Science and Engineering, Waseda University, 3-4-1 Okubo, Shinjuku-ku, Tokyo, 169-8555, Japan
| | - Koichi Fukase
- Department of Chemistry, Graduate School of Science, Osaka University, 1-1 Machikaneyama-cho, Toyonaka-shi, Osaka, 560-0043, Japan
| | - Yoichi Nakao
- Department of Chemistry and Biochemistry, School of Advanced Science and Engineering, Waseda University, 3-4-1 Okubo, Shinjuku-ku, Tokyo, 169-8555, Japan
- Research Institute for Science and Engineering, Waseda University, 3-4-1 Okubo, Shinjuku-ku, Tokyo, 169-8555, Japan
| | - Katsunori Tanaka
- Biofunctional Synthetic Chemistry Laboratory, RIKEN, 2-1 Hirosawa, Wako-shi, Saitama, 351-0198, Japan.
- Biofunctional Chemistry Laboratory, A. Butlerov Institute of Chemistry, Kazan Federal University, 18 Kremlyovskaya Street, Kazan, 420008, Russia.
- JST, PRESTO, 2-1 Hirosawa, Wako-shi, Saitama, 351-0198, Japan.
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38
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Kikuchi H, Nishimura T, Kwon E, Kawai J, Oshima Y. Development of a Terpenoid Alkaloid-like Compound Library Based on the Humulene Skeleton. Chemistry 2016; 22:15819-15825. [DOI: 10.1002/chem.201603224] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/06/2016] [Indexed: 01/10/2023]
Affiliation(s)
- Haruhisa Kikuchi
- Graduate School of Pharmaceutical Sciences; Tohoku University; 6-3, Aza-Aoba, Aoba-ku Sendai 980-8578 Japan
| | - Takehiro Nishimura
- Graduate School of Pharmaceutical Sciences; Tohoku University; 6-3, Aza-Aoba, Aoba-ku Sendai 980-8578 Japan
| | - Eunsang Kwon
- Research and Analytical Center for Giant Molecules, Graduate School of Science; Tohoku University; 6-3, Aza-Aoba, Aoba-ku Sendai 980-8578 Japan
| | - Junya Kawai
- Mushroom Research Laboratory; Hokuto Corporation; Nagano 381-0008 Japan
| | - Yoshiteru Oshima
- Graduate School of Pharmaceutical Sciences; Tohoku University; 6-3, Aza-Aoba, Aoba-ku Sendai 980-8578 Japan
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39
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Ren J, Shi X, Li XN, Li LW, Su J, Shao LD, Zhao QS. Synthesis of a Small-Molecule Library with Skeletal Diversity from Hemslecin A via the Reaction-Discovery Strategy. Org Lett 2016; 18:3948-51. [PMID: 27486900 DOI: 10.1021/acs.orglett.6b01654] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Jian Ren
- State
Key Laboratory of Phytochemistry and Plant Resources in West China,
Kunming Institute of Botany, Chinese Academy of Sciences, Kunming 650201, People’s Republic of China
- University of Chinese Academy of Sciences, Beijing 10049, People’s Republic of China
| | - Xin Shi
- State
Key Laboratory of Phytochemistry and Plant Resources in West China,
Kunming Institute of Botany, Chinese Academy of Sciences, Kunming 650201, People’s Republic of China
- University of Chinese Academy of Sciences, Beijing 10049, People’s Republic of China
| | - Xiao-Nian Li
- State
Key Laboratory of Phytochemistry and Plant Resources in West China,
Kunming Institute of Botany, Chinese Academy of Sciences, Kunming 650201, People’s Republic of China
| | - Lai-Wei Li
- State
Key Laboratory of Phytochemistry and Plant Resources in West China,
Kunming Institute of Botany, Chinese Academy of Sciences, Kunming 650201, People’s Republic of China
- University of Chinese Academy of Sciences, Beijing 10049, People’s Republic of China
| | - Jia Su
- State
Key Laboratory of Phytochemistry and Plant Resources in West China,
Kunming Institute of Botany, Chinese Academy of Sciences, Kunming 650201, People’s Republic of China
| | - Li-Dong Shao
- State
Key Laboratory of Phytochemistry and Plant Resources in West China,
Kunming Institute of Botany, Chinese Academy of Sciences, Kunming 650201, People’s Republic of China
| | - Qin-Shi Zhao
- State
Key Laboratory of Phytochemistry and Plant Resources in West China,
Kunming Institute of Botany, Chinese Academy of Sciences, Kunming 650201, People’s Republic of China
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40
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Richmond E, Khan IU, Moran J. Enantioselective and Regiodivergent Functionalization ofN-Allylcarbamates by Mechanistically Divergent Multicatalysis. Chemistry 2016; 22:12274-7. [DOI: 10.1002/chem.201602792] [Citation(s) in RCA: 21] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/13/2016] [Indexed: 01/25/2023]
Affiliation(s)
- Edward Richmond
- Institut de Science et d'Ingénierie Supramoleculaires (ISIS); Centre International de Recherche aux Frontières de la Chimie (icFRC); Université de Strasbourg; CNRS; 8 allée Gaspard Monge 67000 Strasbourg France
| | - Ismat Ullah Khan
- Institut de Science et d'Ingénierie Supramoleculaires (ISIS); Centre International de Recherche aux Frontières de la Chimie (icFRC); Université de Strasbourg; CNRS; 8 allée Gaspard Monge 67000 Strasbourg France
- Department of Chemistry; Quaid i Azam University; Islamabad 45320 Pakistan
| | - Joseph Moran
- Institut de Science et d'Ingénierie Supramoleculaires (ISIS); Centre International de Recherche aux Frontières de la Chimie (icFRC); Université de Strasbourg; CNRS; 8 allée Gaspard Monge 67000 Strasbourg France
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41
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Qi C, Xiong Y, Eschenbrenner-Lux V, Cong H, Porco JA. Asymmetric Syntheses of the Flavonoid Diels-Alder Natural Products Sanggenons C and O. J Am Chem Soc 2016; 138:798-801. [PMID: 26735066 PMCID: PMC4863937 DOI: 10.1021/jacs.5b12778] [Citation(s) in RCA: 45] [Impact Index Per Article: 5.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/23/2023]
Abstract
Metal-catalyzed, double Claisen rearrangement of a bis-allyloxyflavone has been utilized to enable a concise synthesis of the hydrobenzofuro[3,2-b]chromenone core structure of the natural products sanggenon A and sanggenol F. In addition, catalytic, enantioselective [4+2] cycloadditions of 2'-hydroxychalcones have been accomplished using B(OPh)3/BINOL complexes. Asymmetric syntheses of the flavonoid Diels-Alder natural products sanggenons C and O have been achieved employing a stereodivergent reaction of a racemic mixture (stereodivergent RRM) involving [4+2] cycloaddition.
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Affiliation(s)
| | | | - Vincent Eschenbrenner-Lux
- Department of Chemistry and Center for Molecular Discovery (BU-CMD), Boston University, Boston, Massachusetts 02215, United States
| | - Huan Cong
- Department of Chemistry and Center for Molecular Discovery (BU-CMD), Boston University, Boston, Massachusetts 02215, United States
| | - John A. Porco
- Department of Chemistry and Center for Molecular Discovery (BU-CMD), Boston University, Boston, Massachusetts 02215, United States
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42
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Arai MA, Kofuji Y, Tanaka Y, Yanase N, Yamaku K, Fuentes RG, Karmakar UK, Ishibashi M. Synthesis of rocaglamide derivatives and evaluation of their Wnt signal inhibitory activities. Org Biomol Chem 2016; 14:3061-8. [DOI: 10.1039/c5ob02537k] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Abstract
A new class of rocaglamide derivatives were synthesized by [3 + 2] cycloaddition and their Wnt signal inhibitory activities were evaluated.
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Affiliation(s)
- Midori A. Arai
- Department of Natural Product Chemistry
- Graduate School of Pharmaceutical Sciences
- Chiba University
- Chiba
- Japan
| | - Yuuki Kofuji
- Department of Natural Product Chemistry
- Graduate School of Pharmaceutical Sciences
- Chiba University
- Chiba
- Japan
| | - Yuuki Tanaka
- Department of Natural Product Chemistry
- Graduate School of Pharmaceutical Sciences
- Chiba University
- Chiba
- Japan
| | - Natsuki Yanase
- Department of Natural Product Chemistry
- Graduate School of Pharmaceutical Sciences
- Chiba University
- Chiba
- Japan
| | - Kazuki Yamaku
- Department of Natural Product Chemistry
- Graduate School of Pharmaceutical Sciences
- Chiba University
- Chiba
- Japan
| | - Rolly G. Fuentes
- Department of Natural Product Chemistry
- Graduate School of Pharmaceutical Sciences
- Chiba University
- Chiba
- Japan
| | - Utpal Kumar Karmakar
- Department of Natural Product Chemistry
- Graduate School of Pharmaceutical Sciences
- Chiba University
- Chiba
- Japan
| | - Masami Ishibashi
- Department of Natural Product Chemistry
- Graduate School of Pharmaceutical Sciences
- Chiba University
- Chiba
- Japan
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43
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Mizoguchi H, Oguri H. Development of an Artificial Assembly Line Generating Skeletally Diverse Indole Alkaloids Inspired by Biogenetic Strategy. J SYN ORG CHEM JPN 2016. [DOI: 10.5059/yukigoseikyokaishi.74.854] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Affiliation(s)
| | - Hiroki Oguri
- Division of Applied Chemistry, Graduate School of Engineering, Tokyo University of Agriculture and Technology
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44
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Beniddir MA, Evanno L, Joseph D, Skiredj A, Poupon E. Emergence of diversity and stereochemical outcomes in the biosynthetic pathways of cyclobutane-centered marine alkaloid dimers. Nat Prod Rep 2016; 33:820-42. [DOI: 10.1039/c5np00159e] [Citation(s) in RCA: 52] [Impact Index Per Article: 6.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
Abstract
A deep-sea dive into the ecology and chemistry of surprising cyclobutanes from marine invertebrates.
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Affiliation(s)
| | - Laurent Evanno
- BioCIS
- Univ. Paris-Sud
- CNRS
- Université Paris-Saclay
- Châtenay-Malabry
| | - Delphine Joseph
- BioCIS
- Univ. Paris-Sud
- CNRS
- Université Paris-Saclay
- Châtenay-Malabry
| | - Adam Skiredj
- BioCIS
- Univ. Paris-Sud
- CNRS
- Université Paris-Saclay
- Châtenay-Malabry
| | - Erwan Poupon
- BioCIS
- Univ. Paris-Sud
- CNRS
- Université Paris-Saclay
- Châtenay-Malabry
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45
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Cheng KCC, Cao S, Raveh A, MacArthur R, Dranchak P, Chlipala G, Okoneski MT, Guha R, Eastman RT, Yuan J, Schultz PJ, Su XZ, Tamayo-Castillo G, Matainaho T, Clardy J, Sherman DH, Inglese J. Actinoramide A Identified as a Potent Antimalarial from Titration-Based Screening of Marine Natural Product Extracts. JOURNAL OF NATURAL PRODUCTS 2015; 78:2411-2422. [PMID: 26465675 PMCID: PMC4633019 DOI: 10.1021/acs.jnatprod.5b00489] [Citation(s) in RCA: 24] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/29/2023]
Abstract
Methods to identify the bioactive diversity within natural product extracts (NPEs) continue to evolve. NPEs constitute complex mixtures of chemical substances varying in structure, composition, and abundance. NPEs can therefore be challenging to evaluate efficiently with high-throughput screening approaches designed to test pure substances. Here we facilitate the rapid identification and prioritization of antimalarial NPEs using a pharmacologically driven, quantitative high-throughput-screening (qHTS) paradigm. In qHTS each NPE is tested across a concentration range from which sigmoidal response, efficacy, and apparent EC50s can be used to rank order NPEs for subsequent organism reculture, extraction, and fractionation. Using an NPE library derived from diverse marine microorganisms we observed potent antimalarial activity from two Streptomyces sp. extracts identified from thousands tested using qHTS. Seven compounds were isolated from two phylogenetically related Streptomyces species: Streptomyces ballenaensis collected from Costa Rica and Streptomyces bangulaensis collected from Papua New Guinea. Among them we identified actinoramides A and B, belonging to the unusually elaborated nonproteinogenic amino-acid-containing tetrapeptide series of natural products. In addition, we characterized a series of new compounds, including an artifact, 25-epi-actinoramide A, and actinoramides D, E, and F, which are closely related biosynthetic congeners of the previously reported metabolites.
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Affiliation(s)
- Ken Chih-Chien Cheng
- National Center of Advancing Translational Sciences, National Institutes of Health, Rockville, MD 20850
| | - Shugeng Cao
- Department of Pharmaceutical Sciences, Daniel K. Inouye College of Pharmacy, University of Hawai'i at Hilo, Hilo, HI 96720, USA
- Department of Biological Chemistry and Molecular Pharmacology, Harvard Medical School, 240 Longwood Avenue, C-643, Boston, Massachusetts 021151, USA
| | - Avi Raveh
- Life Sciences Institute, University of Michigan, Ann Arbor, MI 48109-2216, USA
| | - Ryan MacArthur
- National Center of Advancing Translational Sciences, National Institutes of Health, Rockville, MD 20850
| | - Patricia Dranchak
- National Center of Advancing Translational Sciences, National Institutes of Health, Rockville, MD 20850
| | - George Chlipala
- Life Sciences Institute, University of Michigan, Ann Arbor, MI 48109-2216, USA
| | - Matthew T. Okoneski
- Life Sciences Institute, University of Michigan, Ann Arbor, MI 48109-2216, USA
- Departments of Medicinal Chemistry, Chemistry, Microbiology & Immunology, University of Michigan, Ann Arbor, MI 48109-2216, USA
| | - Rajarshi Guha
- National Center of Advancing Translational Sciences, National Institutes of Health, Rockville, MD 20850
| | - Richard T. Eastman
- Laboratory of Malaria and Vector Research, National Institute of Allergy and Infectious Diseases, National Institutes of Health, Bethesda, Maryland 20852, USA
| | - Jing Yuan
- Laboratory of Malaria and Vector Research, National Institute of Allergy and Infectious Diseases, National Institutes of Health, Bethesda, Maryland 20852, USA
| | - Pamela J. Schultz
- Life Sciences Institute, University of Michigan, Ann Arbor, MI 48109-2216, USA
| | - Xin-zhuan Su
- Laboratory of Malaria and Vector Research, National Institute of Allergy and Infectious Diseases, National Institutes of Health, Bethesda, Maryland 20852, USA
| | - Giselle Tamayo-Castillo
- Unidad Estrategica de Bioprospección, Instituto Nacional de Biodiversidad (INBio), Santo Domingo de Heredia, Costa Rica & CIPRONA-Escuela de Química, Universidad de Costa Rica, 2060 San Pedro, Costa Rica
| | - Teatulohi Matainaho
- School of Medicine and Health Sciences, University of Papua New Guinea, Boroko, Papua New Guinea
| | - Jon Clardy
- Department of Biological Chemistry and Molecular Pharmacology, Harvard Medical School, 240 Longwood Avenue, C-643, Boston, Massachusetts 021151, USA
| | - David H. Sherman
- Life Sciences Institute, University of Michigan, Ann Arbor, MI 48109-2216, USA
- Departments of Medicinal Chemistry, Chemistry, Microbiology & Immunology, University of Michigan, Ann Arbor, MI 48109-2216, USA
| | - James Inglese
- National Center of Advancing Translational Sciences, National Institutes of Health, Rockville, MD 20850
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46
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Use of a biosynthetic intermediate to explore the chemical diversity of pseudo-natural fungal polyketides. Nat Chem 2015; 7:737-43. [DOI: 10.1038/nchem.2308] [Citation(s) in RCA: 61] [Impact Index Per Article: 6.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/24/2015] [Accepted: 06/23/2015] [Indexed: 01/20/2023]
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47
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Chen QF, Wang FP, Liu XY. Generating Skeletal Diversity from the C19-Diterpenoid Alkaloid Deltaline: A Ring-Distortion Approach. Chemistry 2015; 21:8946-50. [DOI: 10.1002/chem.201500839] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/02/2015] [Indexed: 01/25/2023]
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48
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Abstract
The natural product (−)-β-caryophyllene is considered as an ideal initiator to generate diverse scaffolds by transannular cyclization due to its macrocyclic structure and abundant availability in nature.
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Affiliation(s)
- Hao-Yu Tang
- Shaanxi Key Laboratory of Natural Products & Chemical Biology
- College of Science
- Northwest A&F University
- Yangling
- China
| | - Jin-Ming Gao
- Shaanxi Key Laboratory of Natural Products & Chemical Biology
- College of Science
- Northwest A&F University
- Yangling
- China
| | - Qiang Zhang
- Shaanxi Key Laboratory of Natural Products & Chemical Biology
- College of Science
- Northwest A&F University
- Yangling
- China
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49
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Mo DL, Wink DJ, Anderson LL. Solvent-Controlled Bifurcated Cascade Process for the Selective Preparation of Dihydrocarbazoles or Dihydropyridoindoles. Chemistry 2014; 20:13217-25. [DOI: 10.1002/chem.201403268] [Citation(s) in RCA: 47] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/26/2014] [Indexed: 01/25/2023]
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