1
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Deepake SK, Kumar M, Kumar P, DAS UTPAL. α‐Angelica Lactone Catalysed Oxidation of Pyrrolidines to Lactams. European J Org Chem 2022. [DOI: 10.1002/ejoc.202200712] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Affiliation(s)
- Siddharth K Deepake
- National Chemical Laboratory CSIR Division of Organic Chemistry 411008 Pune INDIA
| | - Manish Kumar
- National Chemical Laboratory CSIR Division of Organic Chemistry 411008 Pune INDIA
| | - Pawan Kumar
- National Chemical Laboratory CSIR Division of Organic Chemistry 411008 Pune INDIA
| | - UTPAL DAS
- National Chemical Laboratory CSIR Division of Organic Chemistry Pashan Road411008411008 411008 Pune INDIA
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2
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Xun W, Xu B. Synthetic Approaches of Aplykurodinone‐1: A Minireview. ASIAN J ORG CHEM 2021. [DOI: 10.1002/ajoc.202100695] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Affiliation(s)
- Wen Xun
- Zhaoqing University School of Food and Pharmaceutical Engineering Zhaoqing Avenue 526061 Zhaoqing CHINA
| | - Bo Xu
- Guangzhou Institutes of Biomedicine and Health Chemistry CHINA
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3
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Abstract
Herein, we describe a DBU/O2-promoted novel method for oxidation of dienones to 2,6-dione derivatives. The reaction involves treatment of a dienone with DBU in acetonitrile employing molecular oxygen as the oxidant. Metal free conditions and an eco-friendly reagent are the striking features of this protocol. This transformation proceeds through a peroxide intermediate that upon Kornblum-DeLaMare rearrangement produces 2,6-diones. The method was successfully utilized for the synthesis of (±)-pleodendione with improved yields versus those of the traditional PDC-TBHP method.
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Affiliation(s)
- Paresh R Athawale
- Organic Chemistry Division, CSIR-National Chemical Laboratory, Dr. Homi Bhabha Road, Pune 411008, India.,Academy of Scientific and Innovative Research (AcSIR), Ghaziabad 201002, India
| | - Hanuman P Kalmode
- Organic Chemistry Division, CSIR-National Chemical Laboratory, Dr. Homi Bhabha Road, Pune 411008, India
| | - D Srinivasa Reddy
- Organic Chemistry Division, CSIR-National Chemical Laboratory, Dr. Homi Bhabha Road, Pune 411008, India.,Academy of Scientific and Innovative Research (AcSIR), Ghaziabad 201002, India.,CSIR-Indian Institute of Integrated Medicine, Canal Road, Jammu 180001, India
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4
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Ye C, Xu R, Cao Z, Song Q, Yu G, Shi Y, Liu Z, Liu X, Deng Y. Design, synthesis, and in vitro evaluation of 4-aminoalkyl-1(2H)-phthalazinones as potential multifunctional anti-Alzheimer's disease agents. Bioorg Chem 2021; 111:104895. [PMID: 33887586 DOI: 10.1016/j.bioorg.2021.104895] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/08/2020] [Revised: 02/21/2021] [Accepted: 04/04/2021] [Indexed: 01/03/2023]
Abstract
A series of 4-aminoalkyl-1(2H)-phthalazinone derivatives was designed and synthesized as potential multifunctional agents for Alzheimer's disease (AD) treatment. In vitro biological assay results demonstrated that most synthesized compounds exhibited significant AChE inhibition, moderate to high MAOs inhibitory potencies and good anti-platelet aggregation abilities. Among them, compound 15b exhibited the highest inhibitory potencies towards MAO-B and MAO-A (IC50 = 0.7 µM and 6.4 µM respectively), moderate inhibition towards AChE (IC50 = 8.2 µM), and good activities against self- and Cu2+-induced Aβ1-42 aggregation and platelet aggregation. Moreover, 15b also displayed antioxidant capacity, neuroprotective potency, anti-neuroinflammation and BBB permeability. These excellent results indicated that compound 15b could be worthy of further studies to be considered as a promising multifunctional candidate for the treatment of AD.
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Affiliation(s)
- Chanyuan Ye
- Department of Medicinal Chemistry, 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
| | - Rui Xu
- Department of Medicinal Chemistry, 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
| | - Zhongcheng Cao
- Department of Medicinal Chemistry, 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
| | - Qing Song
- Department of Medicinal Chemistry, 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
| | - Guangjun Yu
- Department of Medicinal Chemistry, 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
| | - Yichun Shi
- Department of Medicinal Chemistry, 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
| | - Zhuoling Liu
- Department of Medicinal Chemistry, 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
| | - Xiuxiu Liu
- Department of Medicinal Chemistry, 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.
| | - Yong Deng
- Department of Medicinal Chemistry, 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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5
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Tabassum S, Zahoor AF, Ahmad S, Noreen R, Khan SG, Ahmad H. Cross-coupling reactions towards the synthesis of natural products. Mol Divers 2021; 26:647-689. [PMID: 33609222 DOI: 10.1007/s11030-021-10195-6] [Citation(s) in RCA: 16] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/15/2020] [Accepted: 01/30/2021] [Indexed: 01/12/2023]
Abstract
Cross-coupling reactions are powerful synthetic tools for the formation of remarkable building blocks of many naturally occurring molecules, polymers and biologically active compounds. These reactions have brought potent transformations in chemical and pharmaceutical disciplines. In this review, we have focused on the use of cross-coupling reactions such as Suzuki, Negishi, Heck, Sonogashira and Stille in the total synthesis of some natural products of recent years (2016-2020). A short introduction of mentioned cross-coupling reactions along with highlighted aspects of natural products has been stated in separate sections. Additionally, few examples of natural products via incorporation of more than one type of cross-coupling reaction have also been added to demonstrate the importance of these reactions in organic synthesis.
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Affiliation(s)
- Shaheera Tabassum
- Department of Chemistry, Government College University Faisalabad, Faisalabad, 38000, Pakistan
| | - Ameer Fawad Zahoor
- Department of Chemistry, Government College University Faisalabad, Faisalabad, 38000, Pakistan.
| | - Sajjad Ahmad
- Department of Chemistry, University of Engineering and Technology, Lahore, Faisalabad Campus, Faisalabad, 38000, Pakistan
| | - Razia Noreen
- Department of Biochemistry, Government College University Faisalabad, Faisalabad, 38000, Pakistan
| | - Samreen Gul Khan
- Department of Chemistry, Government College University Faisalabad, Faisalabad, 38000, Pakistan
| | - Hamad Ahmad
- Department of Chemistry, University of Management and Technology, Lahore, Pakistan
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6
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Thatikonda T, Deepake SK, Kumar P, Das U. α-Angelica lactone catalyzed oxidation of benzylic sp 3 C-H bonds of isochromans and phthalans. Org Biomol Chem 2020; 18:4046-4050. [PMID: 32427256 DOI: 10.1039/d0ob00729c] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
A metal-free organocatalytic system has been developed for highly efficient benzylic C-H oxygenations of cyclic ethers using oxygen as an oxidant. This oxidation reaction utilizes α-angelica lactone as a low cost/low molecular weight catalyst. The optimized reaction conditions allow the synthesis of valued isocoumarins and phthalides from readily available precursors in good yields. Mechanistic studies indicate that the reaction pathway likely involves a radical process via a peroxide intermediate.
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Affiliation(s)
- Thanusha Thatikonda
- Division of Organic Chemistry, CSIR - National Chemical Laboratory, Pune 411008, India.
| | - Siddharth K Deepake
- Division of Organic Chemistry, CSIR - National Chemical Laboratory, Pune 411008, India. and Academy of Scientific and Innovative Research (AcSIR), Ghaziabad 201002, India
| | - Pawan Kumar
- Division of Organic Chemistry, CSIR - National Chemical Laboratory, Pune 411008, India. and Academy of Scientific and Innovative Research (AcSIR), Ghaziabad 201002, India
| | - Utpal Das
- Division of Organic Chemistry, CSIR - National Chemical Laboratory, Pune 411008, India. and Academy of Scientific and Innovative Research (AcSIR), Ghaziabad 201002, India
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7
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Lardon N, Liffert R, Linden A, Gademann K. The Furan Shuffling Hypothesis: A Biogenetic Proposal for Eremophilane Sesquiterpenoids. Angew Chem Int Ed Engl 2019; 58:7004-7007. [PMID: 30901154 DOI: 10.1002/anie.201901898] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/13/2019] [Indexed: 12/12/2022]
Abstract
Based on the structural similarities of the recently isolated eremophilane-type sesquiterpenoids microsphaeropsisin B and C and the iso-eremophilane periconianone C, a revised biogenetic hypothesis for C8-C11-connected iso-eremophilanes is presented and corroborated by strong experimental evidence. The first enantioselective total syntheses of microsphaeropsisin B and C were achieved starting from a known intermediate, whose synthesis was elaborated previously in the total synthesis of periconianone A, and in a total of 15 steps starting from γ-hydroxy carvone. Mild reaction conditions for the subsequent α-ketol rearrangement not only resulted in the herein proposed conversion of microsphaeropsisin B into periconianone C, but also in the conversion of microsphaeropsisin C into 4-epi-periconianone C.
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Affiliation(s)
- Nicolas Lardon
- Department of Chemistry, University of Zurich, Winterthurerstrasse 190, 8057, Zurich, Switzerland
| | - Raphael Liffert
- Department of Chemistry, University of Zurich, Winterthurerstrasse 190, 8057, Zurich, Switzerland
| | - Anthony Linden
- Department of Chemistry, University of Zurich, Winterthurerstrasse 190, 8057, Zurich, Switzerland
| | - Karl Gademann
- Department of Chemistry, University of Zurich, Winterthurerstrasse 190, 8057, Zurich, Switzerland
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8
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Lardon N, Liffert R, Linden A, Gademann K. The Furan Shuffling Hypothesis: A Biogenetic Proposal for Eremophilane Sesquiterpenoids. Angew Chem Int Ed Engl 2019. [DOI: 10.1002/ange.201901898] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Affiliation(s)
- Nicolas Lardon
- Department of ChemistryUniversity of Zurich Winterthurerstrasse 190 8057 Zurich Switzerland
| | - Raphael Liffert
- Department of ChemistryUniversity of Zurich Winterthurerstrasse 190 8057 Zurich Switzerland
| | - Anthony Linden
- Department of ChemistryUniversity of Zurich Winterthurerstrasse 190 8057 Zurich Switzerland
| | - Karl Gademann
- Department of ChemistryUniversity of Zurich Winterthurerstrasse 190 8057 Zurich Switzerland
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9
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Thatikonda T, Deepake SK, Das U. α-Angelica Lactone in a New Role: Facile Access to N-Aryl Tetrahydroisoquinolinones and Isoindolinones via Organocatalytic α-CH2 Oxygenation. Org Lett 2019; 21:2532-2535. [DOI: 10.1021/acs.orglett.9b00224] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Thanusha Thatikonda
- Division of Organic Chemistry, CSIR − National Chemical Laboratory, Pune 411008, India
| | - Siddharth K. Deepake
- Division of Organic Chemistry, CSIR − National Chemical Laboratory, Pune 411008, India
- Academy of Scientific and Innovative Research (AcSIR), Ghaziabad 201002, India
| | - Utpal Das
- Division of Organic Chemistry, CSIR − National Chemical Laboratory, Pune 411008, India
- Academy of Scientific and Innovative Research (AcSIR), Ghaziabad 201002, India
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10
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Lee JH, Cho CG. H-Bonding Mediated Asymmetric Intramolecular Diels–Alder Reaction in the Formal Synthesis of (+)-Aplykurodinone-1. Org Lett 2018; 20:7312-7316. [DOI: 10.1021/acs.orglett.8b03250] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Joon-Ho Lee
- Center for New Directions in Organic Synthesis, Department of Chemistry, Hanyang University, 222 Wangshimni-ro, Seongdong-gu, Seoul 04763, Korea
| | - Cheon-Gyu Cho
- Center for New Directions in Organic Synthesis, Department of Chemistry, Hanyang University, 222 Wangshimni-ro, Seongdong-gu, Seoul 04763, Korea
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11
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Abstract
Starting from (R)-citronellic acid and (R)-seudenol, the total synthesis of (+)-aplykurodinone-1, a highly degraded marine steroid, has been achieved in 11 steps and in 19% overall yield with excellent stereochemical control. In addition to the features such as an Ireland-Claisen rearrangement, an intramolecular carbonyl-ene cyclization, and an intramolecular Michael addition, the present synthetic strategy is accomplished without the use of protecting groups.
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Affiliation(s)
- Bo Xu
- Guangzhou Institute of Biomedicine and Health, The University of the Chinese Academy of Sciences , 190 Kaiyuan Avenue, The Science Park of Guangzhou, Guangdong 510530, China
| | - Wen Xun
- Guangzhou Institute of Biomedicine and Health, The University of the Chinese Academy of Sciences , 190 Kaiyuan Avenue, The Science Park of Guangzhou, Guangdong 510530, China
| | - Tingzhong Wang
- The Bestsyn Technologies, 188 Kaiyuan Avenue, The Science Park of Guangzhou, Guangdong 510530, China
| | - Fayang G Qiu
- Guangzhou Institute of Biomedicine and Health, The University of the Chinese Academy of Sciences , 190 Kaiyuan Avenue, The Science Park of Guangzhou, Guangdong 510530, China.,Key Lab of Functional Molecular Engineering of Guangdong Province, South China University of Technology , 188 Kaiyuan Avenue, The Science Park of Guangzhou, Guangdong 510530, China.,The Bestsyn Technologies, 188 Kaiyuan Avenue, The Science Park of Guangzhou, Guangdong 510530, China
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12
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Tao C, Zhang J, Chen X, Wang H, Li Y, Cheng B, Zhai H. Formal Synthesis of (±)-Aplykurodinone-1 through a Hetero-Pauson-Khand Cycloaddition Approach. Org Lett 2017; 19:1056-1059. [PMID: 28218858 DOI: 10.1021/acs.orglett.7b00068] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/04/2023]
Abstract
The tricyclic intermediate 2 has been synthesized in eight steps from known compound 6 in 20% overall yield. As such, this constitutes a highly efficient formal synthesis of (±)-aplykurodinone-1. This synthesis features a unique, one-pot, intramolecular hetero-Pauson-Khand reaction (h-PKR)/desilylation sequence to expeditiously construct the tricyclic framework, providing valuable insights for expanding the scope and boundaries of h-PKR.
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Affiliation(s)
- Cheng Tao
- The State Key Laboratory of Applied Organic Chemistry, College of Chemistry and Chemical Engineering, Lanzhou University , Lanzhou 730000, China
| | - Jing Zhang
- Key Laboratory of Chemical Genomics, School of Chemical Biology and Biotechnology, Shenzhen Graduate School of Peking University , Shenzhen 518055, China
| | - Xiaoming Chen
- Key Laboratory of Chemical Genomics, School of Chemical Biology and Biotechnology, Shenzhen Graduate School of Peking University , Shenzhen 518055, China
| | - Huifei Wang
- Key Laboratory of Chemical Genomics, School of Chemical Biology and Biotechnology, Shenzhen Graduate School of Peking University , Shenzhen 518055, China
| | - Yun Li
- The State Key Laboratory of Applied Organic Chemistry, College of Chemistry and Chemical Engineering, Lanzhou University , Lanzhou 730000, China
| | - Bin Cheng
- The State Key Laboratory of Applied Organic Chemistry, College of Chemistry and Chemical Engineering, Lanzhou University , Lanzhou 730000, China
| | - Hongbin Zhai
- The State Key Laboratory of Applied Organic Chemistry, College of Chemistry and Chemical Engineering, Lanzhou University , Lanzhou 730000, China.,Key Laboratory of Chemical Genomics, School of Chemical Biology and Biotechnology, Shenzhen Graduate School of Peking University , Shenzhen 518055, China.,Collaborative Innovation Center of Chemical Science and Engineering (Tianjin) , Tianjin 300071, China
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13
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Zeng XP, Cao ZY, Wang YH, Zhou F, Zhou J. Catalytic Enantioselective Desymmetrization Reactions to All-Carbon Quaternary Stereocenters. Chem Rev 2016; 116:7330-96. [DOI: 10.1021/acs.chemrev.6b00094] [Citation(s) in RCA: 468] [Impact Index Per Article: 58.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
Affiliation(s)
- Xing-Ping Zeng
- Shanghai
Key Laboratory of Green Chemistry and Chemical Processes, School of
Chemistry and Molecular Engineering, East China Normal University, Shanghai 200062, P. R. China
| | - Zhong-Yan Cao
- Shanghai
Key Laboratory of Green Chemistry and Chemical Processes, School of
Chemistry and Molecular Engineering, East China Normal University, Shanghai 200062, P. R. China
| | - Yu-Hui Wang
- Shanghai
Key Laboratory of Green Chemistry and Chemical Processes, School of
Chemistry and Molecular Engineering, East China Normal University, Shanghai 200062, P. R. China
| | - Feng Zhou
- Shanghai
Key Laboratory of Green Chemistry and Chemical Processes, School of
Chemistry and Molecular Engineering, East China Normal University, Shanghai 200062, P. R. China
| | - Jian Zhou
- Shanghai
Key Laboratory of Green Chemistry and Chemical Processes, School of
Chemistry and Molecular Engineering, East China Normal University, Shanghai 200062, P. R. China
- State
Key Laboratory and Institute of Elemento-organic Chemistry, Nankai University, Tianjin 300071, P. R. China
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14
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Henrot M, Jean A, Peixoto PA, Maddaluno J, De Paolis M. Flexible Total Synthesis of (±)-Aureothin, a Potent Antiproliferative Agent. J Org Chem 2016; 81:5190-201. [DOI: 10.1021/acs.joc.6b00878] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Matthias Henrot
- COBRA-IRCOF, CNRS, Université & INSA de Rouen, Mont Saint Aignan, France
| | - Alexandre Jean
- COBRA-IRCOF, CNRS, Université & INSA de Rouen, Mont Saint Aignan, France
| | | | - Jacques Maddaluno
- COBRA-IRCOF, CNRS, Université & INSA de Rouen, Mont Saint Aignan, France
| | - Michaël De Paolis
- COBRA-IRCOF, CNRS, Université & INSA de Rouen, Mont Saint Aignan, France
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15
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Singh N, Pulukuri KK, Chakraborty TK. Formal synthesis of degraded sterol (+)-aplykurodinone-1. Tetrahedron 2015. [DOI: 10.1016/j.tet.2015.05.026] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
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16
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Tang Y, Liu JT, Chen P, Lv MC, Wang ZZ, Huang YK. Protecting-Group-Free Total Synthesis of Aplykurodinone-1. J Org Chem 2014; 79:11729-34. [DOI: 10.1021/jo501684k] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/27/2022]
Affiliation(s)
- Yu Tang
- School of Pharmaceutical Science and Technology, Key Laboratory for Modern Drug Delivery & High-Efficiency, Collaborative Innovation Center of Chemical Science and Engineering, Tianjin University, Tianjin, 300072 P. R. China
| | - Ji-tian Liu
- School of Pharmaceutical Science and Technology, Key Laboratory for Modern Drug Delivery & High-Efficiency, Collaborative Innovation Center of Chemical Science and Engineering, Tianjin University, Tianjin, 300072 P. R. China
| | - Ping Chen
- School of Pharmaceutical Science and Technology, Key Laboratory for Modern Drug Delivery & High-Efficiency, Collaborative Innovation Center of Chemical Science and Engineering, Tianjin University, Tianjin, 300072 P. R. China
| | - Ming-can Lv
- School of Pharmaceutical Science and Technology, Key Laboratory for Modern Drug Delivery & High-Efficiency, Collaborative Innovation Center of Chemical Science and Engineering, Tianjin University, Tianjin, 300072 P. R. China
| | - Zhen-zhen Wang
- School of Pharmaceutical Science and Technology, Key Laboratory for Modern Drug Delivery & High-Efficiency, Collaborative Innovation Center of Chemical Science and Engineering, Tianjin University, Tianjin, 300072 P. R. China
| | - Yi-kun Huang
- School of Pharmaceutical Science and Technology, Key Laboratory for Modern Drug Delivery & High-Efficiency, Collaborative Innovation Center of Chemical Science and Engineering, Tianjin University, Tianjin, 300072 P. R. China
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17
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Abstract
The concise total synthesis of aplykurodinone-1 with an unusual cis-fused hydrindane moiety has been accomplished without the need for any protecting group chemistry using a unique SmI2 mediated reductive cascade cyclization reaction and a direct cuprate mediated 1,4-addition. This work represents the first example of the use of a SmI2-mediated intramolecular cascade cyclization reaction between "halide, alkene and aldehyde" groups.
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Affiliation(s)
- Gang Liu
- Laboratory of Chemical Genomics, School of Chemical Biology and Biotechnology, Peking University Shenzhen Graduate School , Shenzhen 518055, China
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18
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Handore KL, Reddy DS. Total Synthesis of (±)-Nardoaristolone B and Its Analogues. Org Lett 2014; 16:4252-5. [DOI: 10.1021/ol501949r] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Kishor L. Handore
- CSIR-National Chemical Laboratory, Division
of Organic Chemistry, Dr. Homi Bhabha Road, Pune, 411008, India
| | - D. Srinivasa Reddy
- CSIR-National Chemical Laboratory, Division
of Organic Chemistry, Dr. Homi Bhabha Road, Pune, 411008, India
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19
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Peixoto PA, Cormier M, Ekosso Epane J, Jean A, Maddaluno J, De Paolis M. Metal-free aerobic C–H oxidation of cyclic enones. Org Chem Front 2014. [DOI: 10.1039/c4qo00125g] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
A metal-free procedure is described for the aerobic and complete C–H methylene oxidation of Hajos–Parrish enones to versatile dihydroindenediones.
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Affiliation(s)
- P. A. Peixoto
- Laboratoire COBRA
- CNRS UMR 6014 & FR 3038
- Université et INSA de Rouen
- 76821-Mont Saint-Aignan, France
| | - M. Cormier
- Laboratoire COBRA
- CNRS UMR 6014 & FR 3038
- Université et INSA de Rouen
- 76821-Mont Saint-Aignan, France
| | - J. Ekosso Epane
- Laboratoire COBRA
- CNRS UMR 6014 & FR 3038
- Université et INSA de Rouen
- 76821-Mont Saint-Aignan, France
| | - A. Jean
- Laboratoire COBRA
- CNRS UMR 6014 & FR 3038
- Université et INSA de Rouen
- 76821-Mont Saint-Aignan, France
| | - J. Maddaluno
- Laboratoire COBRA
- CNRS UMR 6014 & FR 3038
- Université et INSA de Rouen
- 76821-Mont Saint-Aignan, France
| | - M. De Paolis
- Laboratoire COBRA
- CNRS UMR 6014 & FR 3038
- Université et INSA de Rouen
- 76821-Mont Saint-Aignan, France
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