1
|
Yu F, Xu L. A concise and stereoselective synthesis of the BCDF tetracyclic ring system of C 19-diterpenoid alkaloids. RSC Adv 2024; 14:21102-21106. [PMID: 38966809 PMCID: PMC11223105 DOI: 10.1039/d4ra02821j] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/16/2024] [Accepted: 06/18/2024] [Indexed: 07/06/2024] Open
Abstract
A new synthetic route for the BCDF tetracyclic ring system of C19-diterpenoid alkaloids (C19-DTAs) has been developed. The key step is a Pd-catalyzed transannular alkenylation that installs a functionalized bridged F ring. The overall strategy is concise and stereoselective, and it provides a valuable new tool for the synthesis of C19-DTAs. The synthesis begins with a bridged [3.2.1] ring system, which is converted to a key intermediate through a series of highly regio- and stereoselective processes. The introduction of an allylic side chain with high precision is accomplished, culminating in a Pd-catalyzed transannular alkenylation that installs a functionalized bridged F ring to yield the BCDF tetracyclic analog of C19-DTAs.
Collapse
Affiliation(s)
- Fangzhou Yu
- Key Laboratory of Drug Targeting and Drug Delivery Systems of the Ministry of Education, West China School of Pharmacy, Sichuan University Chengdu 610041 P. R. China
| | - Liang Xu
- Key Laboratory of Drug Targeting and Drug Delivery Systems of the Ministry of Education, West China School of Pharmacy, Sichuan University Chengdu 610041 P. R. China
| |
Collapse
|
2
|
Wiesler S, Sennari G, Popescu MV, Gardner KE, Aida K, Paton RS, Sarpong R. Late-stage benzenoid-to-troponoid skeletal modification of the cephalotanes exemplified by the total synthesis of harringtonolide. Nat Commun 2024; 15:4125. [PMID: 38750061 PMCID: PMC11096412 DOI: 10.1038/s41467-024-48586-6] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/14/2024] [Accepted: 05/07/2024] [Indexed: 05/18/2024] Open
Abstract
Skeletal modifications enable elegant and rapid access to various derivatives of a compound that would otherwise be difficult to prepare. They are therefore a powerful tool, especially in the synthesis of natural products or drug discovery, to explore different natural products or to improve the properties of a drug candidate starting from a common intermediate. Inspired by the biosynthesis of the cephalotane natural products, we report here a single-atom insertion into the framework of the benzenoid subfamily, providing access to the troponoid congeners - representing the reverse of the proposed biosynthesis (i.e., a contra-biosynthesis approach). Computational evaluation of our designed transformation prompted us to investigate a Büchner-Curtius-Schlotterbeck reaction of a p-quinol methylether, which ultimately results in the synthesis of harringtonolide in two steps from cephanolide A, which we had previously prepared. Additional computational studies reveal that unconventional selectivity outcomes are driven by the choice of a Lewis acid and the nucleophile, which should inform further developments of these types of reactions.
Collapse
Affiliation(s)
- Stefan Wiesler
- Department of Chemistry, University of California, Berkeley, California, USA
| | - Goh Sennari
- Department of Chemistry, University of California, Berkeley, California, USA
- Ōmura Satoshi Memorial Institute and Graduate School of Infection Control Sciences, Kitasato University, 5-9-1 Shirokane, Minato-ku, Tokyo, Japan
| | - Mihai V Popescu
- Department of Chemistry, Colorado State University, Ft. Collins, Colorado, USA
| | - Kristen E Gardner
- Department of Chemistry, University of California, Berkeley, California, USA
| | - Kazuhiro Aida
- Department of Chemistry, University of California, Berkeley, California, USA
| | - Robert S Paton
- Department of Chemistry, Colorado State University, Ft. Collins, Colorado, USA.
| | - Richmond Sarpong
- Department of Chemistry, University of California, Berkeley, California, USA.
| |
Collapse
|
3
|
Yang ZN, Rao H, Yin Y, Mu S, Jia Z, Ding H. Forging the Tetracyclic Core Framework of Rhodomolleins XIV and XLII: A Ring-Distortion Approach. Org Lett 2024; 26:3524-3529. [PMID: 38656200 DOI: 10.1021/acs.orglett.4c00885] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 04/26/2024]
Abstract
A ring distortion approach for the synthesis of an advanced intermediate en route to rhodomolleins XIV and XLII was described, which led to successful construction of the 5/8/5/5 tetracyclic core framework of the kalmane diterpenoids. Key steps of the strategy include an oxidative dearomatization-induced (ODI)-Diels-Alder cycloaddition, a Dowd-Beckwith rearrangement, and a bioinspired Wagner-Meerwein rearrangement.
Collapse
Affiliation(s)
- Zhen-Ning Yang
- Department of Chemistry, Zhejiang University, Hangzhou 310058, China
| | - Huijuanzi Rao
- Department of Chemistry, Zhejiang University, Hangzhou 310058, China
| | - Yuhao Yin
- Department of Chemistry, Zhejiang University, Hangzhou 310058, China
| | - Shan Mu
- Department of Chemistry, Zhejiang University, Hangzhou 310058, China
| | - Ziqi Jia
- Department of Chemistry, Zhejiang University, Hangzhou 310058, China
| | - Hanfeng Ding
- Department of Chemistry, Zhejiang University, Hangzhou 310058, China
- State Key Laboratory of Elemento-Organic Chemistry, Nankai University, Tianjin 300071, China
| |
Collapse
|
4
|
Hanif M, Zahoor AF, Saif MJ, Nazeer U, Ali KG, Parveen B, Mansha A, Chaudhry AR, Irfan A. Exploring the synthetic potential of epoxide ring opening reactions toward the synthesis of alkaloids and terpenoids: a review. RSC Adv 2024; 14:13100-13128. [PMID: 38655462 PMCID: PMC11036177 DOI: 10.1039/d4ra01834f] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/10/2024] [Accepted: 04/15/2024] [Indexed: 04/26/2024] Open
Abstract
Epoxides are oxygen containing heterocycles which are significantly employed as crucial intermediates in various organic transformations. They are considered highly reactive three-membered heterocycles due to ring strain and they undergo epoxide ring opening reactions with diverse range of nucleophiles. Epoxide ring-opening reactions have gained prominence as flexible and effective means to obtain various functionalized molecules. These reactions have garnered substantial attention in organic synthesis, driven by the need to comprehend the synthesis of biologically and structurally important organic compounds. They have also found applications in the synthesis of complex natural products. In this review article, we have summarized the implementation of epoxide ring opening reactions in the synthesis of alkaloids and terpenoids based natural products reported within the last decade (2014-2023).
Collapse
Affiliation(s)
- Madiha Hanif
- Department of Chemistry, Government College University Faisalabad 38000-Faisalabad Pakistan
| | - Ameer Fawad Zahoor
- Department of Chemistry, Government College University Faisalabad 38000-Faisalabad Pakistan
| | - Muhammad Jawwad Saif
- Department of Applied Chemistry, Government College University Faisalabad 38000-Faisalabad Pakistan
| | - Usman Nazeer
- Department of Chemistry, University of Houston 3585 Cullen Boulevard Texas 77204-5003 USA
| | - Kulsoom Ghulam Ali
- Department of Chemistry, Government College University Faisalabad 38000-Faisalabad Pakistan
| | - Bushra Parveen
- Department of Chemistry, Government College University Faisalabad 38000-Faisalabad Pakistan
| | - Asim Mansha
- Department of Chemistry, Government College University Faisalabad 38000-Faisalabad Pakistan
| | - Aijaz Rasool Chaudhry
- Department of Physics, College of Science, University of Bisha P.O. Box 551 Bisha 61922 Saudi Arabia
| | - Ahmad Irfan
- Department of Chemistry, King Khalid University P.O. Box 9004 Abha 61413 Saudi Arabia
| |
Collapse
|
5
|
Lu F, Shao Y, Yan S, Yang D, Song H, Zhang D, Liu XY, Qin Y. Asymmetric Synthesis of the Functionalized A/E-Ring Fragment of C 18-Diterpenoid Alkaloids. J Org Chem 2024; 89:2807-2811. [PMID: 38324536 DOI: 10.1021/acs.joc.3c02745] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/09/2024]
Abstract
A new asymmetric synthesis of the A/E-ring fragment of C18-diterpenoid alkaloids is described. The crucial contiguous stereogenic centers at C4, C5, and C11 were established through an asymmetric Michael addition/allylation sequence. The unique azabicyclo[3.3.1]nonane motif (A/E rings) was assembled by employing ring-closing metathesis and Mitsunobu reaction as key strategies.
Collapse
Affiliation(s)
- Fei Lu
- 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
| | - Yu Shao
- 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
| | - Shulin Yan
- 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
| | - Dingyi Yang
- 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
| | - Hao Song
- 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
| | - Dan Zhang
- 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
| | - 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
| | - 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
| |
Collapse
|
6
|
Li C, Lu F, Cai Y, Zhang C, Shao Y, Zhang Y, Liu XY, Qin Y. Catalytic Asymmetric Total Synthesis of (-)-Garryine via an Enantioselective Heck Reaction. J Am Chem Soc 2024; 146:1081-1088. [PMID: 38113465 DOI: 10.1021/jacs.3c12171] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2023]
Abstract
The first asymmetric total synthesis of the hexacyclic veatchine-type C20-diterpenoid alkaloid (-)-garryine is presented. Key steps include a Pd-catalyzed enantioselective Heck reaction, a radical cyclization, and a photoinduced C-H activation/oxazolidine formation sequence. Of note, a highly enantioselective Heck reaction developed in this work provides efficient access to 6/6/6 tricyclic compounds, in particular, containing a C19-functionalitiy, which is useful for diverse transformations.
Collapse
Affiliation(s)
- Chuang Li
- 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
| | - Fei Lu
- 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
| | - Yukun Cai
- 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 Zhang
- 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
| | - Yu Shao
- 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
| | - Yuanyuan Zhang
- 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
| | - 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
| | - 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
| |
Collapse
|
7
|
Xu Z, Li X, Rose JA, Herzon SB. Finding activity through rigidity: syntheses of natural products containing tricyclic bridgehead carbon centers. Nat Prod Rep 2023; 40:1393-1431. [PMID: 37140079 PMCID: PMC10472132 DOI: 10.1039/d3np00008g] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 05/05/2023]
Abstract
Covering: up to 2022Tricyclic bridgehead carbon centers (TBCCs) are a synthetically challenging substructure found in many complex natural products. Here we review the syntheses of ten representative families of TBCC-containing isolates, with the goal of outlining the strategies and tactics used to install these centers, including a discussion of the evolution of the successful synthetic design. We provide a summary of common strategies to inform future synthetic endeavors.
Collapse
Affiliation(s)
- Zhi Xu
- Department of Chemistry, Yale University, New Haven, Connecticut, 06520, USA.
| | - Xin Li
- Department of Chemistry, Yale University, New Haven, Connecticut, 06520, USA.
| | - John A Rose
- Department of Chemistry, Yale University, New Haven, Connecticut, 06520, USA.
| | - Seth B Herzon
- Department of Chemistry, Yale University, New Haven, Connecticut, 06520, USA.
- Departments of Pharmacology and Therapeutic Radiology, Yale School of Medicine, New Haven, Connecticut, 06520, USA
| |
Collapse
|
8
|
Ji J, Chen J, Qin S, Li W, Zhao J, Li G, Song H, Liu XY, Qin Y. Total Synthesis of Vilmoraconitine. J Am Chem Soc 2023; 145:3903-3908. [PMID: 36779887 DOI: 10.1021/jacs.3c00318] [Citation(s) in RCA: 5] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/14/2023]
Abstract
Vilmoraconitine belongs to one of the most complex skeleton types in the C19-diterpenoid alkaloids, which architecturally features an unprecedented heptacyclic core possessing a rigid cyclopropane unit. Here, we report the first total synthesis of vilmoraconitine relying on strategic use of efficient ring-forming reactions. Key steps include an oxidative dearomatization-induced Diels-Alder cycloaddition, a hydrodealkenylative fragmentation/Mannich sequence, and an intramolecular Diels-Alder cycloaddition.
Collapse
Affiliation(s)
- Jiujian Ji
- 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
| | - 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
| | - Sixun 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
| | - Wanye Li
- 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
| | - Jun Zhao
- 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
| | - Guozhao Li
- 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
| | - Hao Song
- 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
| | - 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
| | - 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
| |
Collapse
|
9
|
Shimakawa T, Nakamura S, Asai H, Hagiwara K, Inoue M. Total Synthesis of Puberuline C. J Am Chem Soc 2023; 145:600-609. [PMID: 36538394 DOI: 10.1021/jacs.2c11259] [Citation(s) in RCA: 6] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/24/2022]
Abstract
Puberuline C (1) is an architecturally complex C19-diterpenoid alkaloid with a unique ring fusion pattern. The 6/7/5/6/6/6-membered rings (ABCDEF-rings) contain one tertiary amine and six oxygen functionalities, and possess 12 contiguously aligned stereocenters, three of which are quaternary. These structural features of 1 make its chemical construction exceptionally challenging. Here, we disclose the first total synthesis of 1. The synthesis was accomplished from 2-cyclohexenone (9) by integrating radical cascade and Mukaiyama aldol reactions as the key transformations. A double Mannich reaction fused the A- and E-rings, and Sonogashira coupling attached the C-ring, efficiently leading to ACE-rings with the requisite 19 carbons of 1. The chemically stable tertiary chloride of the ACE-ring structure was then transformed to the corresponding bridgehead radical, which participated in the simultaneous cyclization of the B- and F-rings via a highly organized radical cascade process. This unusual step installed five contiguous stereocenters, including two quaternary carbons, without damaging the preexisting multiple polar functionalities. Subsequently, the intramolecular Mukaiyama aldol reaction between silyl enol ether and acetal was realized by applying a combination of SnCl4 and ZnCl2, forging the last remaining D-ring of the hexacycle. Finally, 3 was elaborated into 1 through regio- and stereoselective functionalizations of the BCD-rings. Our novel radical-based strategy achieved the total synthesis of 1 in 32 total steps from simple 9, demonstrating the power of the radical cascade reaction to streamline the assembly of highly complex molecules.
Collapse
Affiliation(s)
- Tsukasa Shimakawa
- Graduate School of Pharmaceutical Sciences, The University of Tokyo, Hongo, Bunkyo-ku, Tokyo113-0033, Japan
| | - Shu Nakamura
- Graduate School of Pharmaceutical Sciences, The University of Tokyo, Hongo, Bunkyo-ku, Tokyo113-0033, Japan
| | - Hibiki Asai
- Graduate School of Pharmaceutical Sciences, The University of Tokyo, Hongo, Bunkyo-ku, Tokyo113-0033, Japan
| | - Koichi Hagiwara
- Graduate School of Pharmaceutical Sciences, The University of Tokyo, Hongo, Bunkyo-ku, Tokyo113-0033, Japan
| | - Masayuki Inoue
- Graduate School of Pharmaceutical Sciences, The University of Tokyo, Hongo, Bunkyo-ku, Tokyo113-0033, Japan
| |
Collapse
|
10
|
Huck CJ, Boyko YD, Sarlah D. Dearomative logic in natural product total synthesis. Nat Prod Rep 2022; 39:2231-2291. [PMID: 36173020 PMCID: PMC9772301 DOI: 10.1039/d2np00042c] [Citation(s) in RCA: 16] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/30/2022]
Abstract
Covering: 2011 to 2022The natural world is a prolific source of some of the most interesting, rare, and complex molecules known, harnessing sophisticated biosynthetic machinery evolved over billions of years for their production. Many of these natural products represent high-value targets of total synthesis, either for their desirable biological activities or for their beautiful structures outright; yet, the high sp3-character often present in nature's molecules imparts significant topological complexity that pushes the limits of contemporary synthetic technology. Dearomatization is a foundational strategy for generating such intricacy from simple materials that has undergone considerable maturation in recent years. This review highlights the recent achievements in the field of dearomative methodology, with a focus on natural product total synthesis and retrosynthetic analysis. Disconnection guidelines and a three-phase dearomative logic are described, and a spotlight is given to nature's use of dearomatization in the biosynthesis of various classes of natural products. Synthetic studies from 2011 to 2021 are reviewed, and 425 references are cited.
Collapse
Affiliation(s)
| | - Yaroslav D. Boyko
- Department of Chemistry, University of Illinois, Urbana, IL 61801, USA
| | - David Sarlah
- Department of Chemistry, University of Illinois, Urbana, IL 61801, USA,Department of Chemistry, University of Pavia, Viale Taramelli 12, 27100 Pavia, Italy
| |
Collapse
|
11
|
Qasem AMA, Rowan MG, Blagbrough IS. Poisonous Piperidine Plants and the Biodiversity of Norditerpenoid Alkaloids for Leads in Drug Discovery: Experimental Aspects. Int J Mol Sci 2022; 23:12128. [PMID: 36292987 PMCID: PMC9603787 DOI: 10.3390/ijms232012128] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/15/2022] [Revised: 10/04/2022] [Accepted: 10/07/2022] [Indexed: 11/16/2022] Open
Abstract
There are famous examples of simple (e.g., hemlock, Conium maculatum L.) and complex (e.g., opium poppy, Papaver somniferum L., Papaveraceae) piperidine-alkaloid-containing plants. Many of these are highly poisonous, whilst pepper is well-known gastronomically, and several substituted piperidine alkaloids are therapeutically beneficial as a function of dose and mode of action. This review covers the taxonomy of the genera Aconitum, Delphinium, and the controversial Consolida. As part of studying the biodiversity of norditerpenoid alkaloids (NDAS), the majority of which possess an N-ethyl group, we also quantified the fragment occurrence count in the SciFinder database for NDA skeletons. The wide range of NDA biodiversity is also captured in a review of over 100 recently reported isolated alkaloids. Ring A substitution at position 1 is important to determine the NDA skeleton conformation. In this overview of naturally occurring highly oxygenated NDAs from traditional Aconitum and Delphinium plants, consideration is given to functional effect and to real functional evidence. Their high potential biological activity makes them useful candidate molecules for further investigation as lead compounds in the development of selective drugs.
Collapse
|
12
|
Jin S, Zhao X, Ma D. Divergent Total Syntheses of Napelline-Type C20-Diterpenoid Alkaloids: (-)-Napelline, (+)-Dehydronapelline, (-)-Songorine, (-)-Songoramine, (-)-Acoapetaldine D, and (-)-Liangshanone. J Am Chem Soc 2022; 144:15355-15362. [PMID: 35948501 DOI: 10.1021/jacs.2c06738] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
Abstract
The napelline-type alkaloids possess an azabicyclo[3.2.1]octane moiety and an ent-kaurane-type tetracyclic skeleton (6/6/6/5) along with varied oxidation patterns embedded in the compact hexacyclic framework. Herein, we disclose a divergent entry to napelline-type alkaloids that hinges on convergent assembly of the ent-kaurane core using a diastereoselective intermolecular Cu-mediated conjugate addition and subsequent intramolecular Michael addition reaction as well as rapid construction of the azabicyclo[3.2.1]octane motif via an intramolecular Mannich cyclization. The power of this strategy has been demonstrated through efficient asymmetric total syntheses of eight napelline-type alkaloids, including (-)-napelline, (-)-12-epi-napelline, (+)-dehydronapelline, (+)-12-epi-dehydronapelline, (-)-songorine, (-)-songoramine, (-)-acoapetaldine D, and (-)-liangshanone.
Collapse
Affiliation(s)
- Shicheng Jin
- State Key Laboratory of Bioorganic & Natural Products Chemistry, Center for Excellence in Molecular Synthesis, Shanghai Institute of Organic Chemistry, University of Chinese Academy of Sciences, Chinese Academy of Sciences, 345 Lingling Lu, Shanghai 200032, China
| | - Xiangbo Zhao
- State Key Laboratory of Bioorganic & Natural Products Chemistry, Center for Excellence in Molecular Synthesis, Shanghai Institute of Organic Chemistry, University of Chinese Academy of Sciences, Chinese Academy of Sciences, 345 Lingling Lu, Shanghai 200032, China
| | - Dawei Ma
- State Key Laboratory of Bioorganic & Natural Products Chemistry, Center for Excellence in Molecular Synthesis, Shanghai Institute of Organic Chemistry, University of Chinese Academy of Sciences, Chinese Academy of Sciences, 345 Lingling Lu, Shanghai 200032, China
| |
Collapse
|
13
|
Chen C, Hsieh H. Recent advances in total synthesis of natural products by masked
ortho
‐benzoquinones. J CHIN CHEM SOC-TAIP 2022. [DOI: 10.1002/jccs.202200276] [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)
- Chih‐Ming Chen
- Institute of Biotechnology and Pharmaceutical Research National Health Research Institutes Zhunan Taiwan
- Biomedical Translation Research Center Academia Sinica Taipei City Taiwan
| | - Hsing‐Pang Hsieh
- Institute of Biotechnology and Pharmaceutical Research National Health Research Institutes Zhunan Taiwan
- Biomedical Translation Research Center Academia Sinica Taipei City Taiwan
- Department of Chemistry National Tsing Hua University Hsinchu Taiwan
| |
Collapse
|
14
|
An insight into current advances on pharmacology, pharmacokinetics, toxicity and detoxification of aconitine. Biomed Pharmacother 2022; 151:113115. [PMID: 35605296 DOI: 10.1016/j.biopha.2022.113115] [Citation(s) in RCA: 16] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/13/2022] [Revised: 05/05/2022] [Accepted: 05/10/2022] [Indexed: 11/20/2022] Open
Abstract
Aconitine is a diterpenoid alkaloid, which mainly exists in the plants of Aconitum. In the last decade, a plethora of studies on the pharmacological activities of aconitine has been conducted and demonstrated that aconitine possessed an extensive range of pharmacological activities such as anti-tumor, anti-inflammatory, analgesic, local anesthesia, and immunomodulatory effects. Pharmacokinetic studies indicated that aconitine may have the characteristics of poor bioavailability, wide distribution, and slow elimination. However, studies have also found that aconitine has toxic effects on the heart, nerves, embryos, etc. Therefore, we believe that aconitine may not be suitable for heart patients and pregnant women to treat related diseases. It is important to note that all of these pharmacological effects require further high-quality studies to determine the clinical efficacy of aconitine. This review aims to summarize the advances in pharmacological, pharmacokinetics, toxicity, and detoxification of aconitine in the last decade with an emphasis on its anti-tumor and anti-inflammatory activities, to provide researchers with the latest information and point out the limitations of relevant research at the current stage and the aspects that should be strengthened in future research.
Collapse
|
15
|
Liu XY, Ke BW, Qin Y, Wang FP. The diterpenoid alkaloids. THE ALKALOIDS. CHEMISTRY AND BIOLOGY 2022; 87:1-360. [PMID: 35168778 DOI: 10.1016/bs.alkal.2021.08.001] [Citation(s) in RCA: 8] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
Abstract
The diterpenoid alkaloids are a family of extremely important natural products that have long been a research hotspot due to their myriad of intricate structures and diverse biological properties. This chapter systematically summarizes the past 11 years (2009-2019) of studies on the diterpenoid alkaloids, including the "so-called" atypical ones, covering the classification and biogenetic relationships, phytochemistry together with 444 new alkaloids covering 32 novel skeletons and the corrected structures, chemical reactions including conversion toward toxoids, synthetic studies, as well as biological activities. It should be noted that the synthetic studies, especially the total syntheses of various diterpenoid alkaloids, are for the first time reviewed in this treatise. This chapter, in combination with our four previous reviews in volumes 42, 59, 67, and 69, will present to the readers a more completed and updated profile of the diterpenoid alkaloids.
Collapse
Affiliation(s)
- Xiao-Yu Liu
- Department of Chemistry of Medicinal Natural Products, West China School of Pharmacy, Sichuan University, Chengdu, China; 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, China
| | - Bo-Wen Ke
- West China Hospital, Sichuan University, Chengdu, China
| | - Yong Qin
- Department of Chemistry of Medicinal Natural Products, West China School of Pharmacy, Sichuan University, Chengdu, China; 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, China.
| | - Feng-Peng Wang
- Department of Chemistry of Medicinal Natural Products, West China School of Pharmacy, Sichuan University, Chengdu, China.
| |
Collapse
|
16
|
Santalla H, Nieto Faza O, Gómez G, Fall Y, López CS. On the mechanism of the dyotropic expansion of hydrindanes into decalins. Org Biomol Chem 2022; 20:1073-1079. [PMID: 35029264 DOI: 10.1039/d1ob02150h] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
A combined computational/experimental approach has revealed key mechanistic aspects in a recently reported dyotropic expansion of hydrindanes into decalins. While computer simulations had already anticipated the need for acid catalysis for making this reaction feasible under the mild conditions used in the laboratory, this work places the dyotropic step not into the reaction flask but at a later step, during the work up instead. With this information in hand the reaction has been optimized by exploring the performance of different activating agents and shown to be versatile, particularly in steroid related chemistry due to the two scaffolds that this reaction connects. Finally, the scope of the reaction has been significantly broadened by showing that this protocol can also operate in the absence of the fused six-member ring.
Collapse
Affiliation(s)
- Hugo Santalla
- Departamento de Química Orgánica and Instituto de Investigación Sanitaria Galicia Sur (IISGS), Campus Lagoas-Marcosende, 36310 Vigo, Spain. .,Departamento de Química Orgánica, Campus Lagoas-Marcosende, 36310 Vigo, Spain
| | - Olalla Nieto Faza
- Departamento de Química Orgánica and Instituto de Investigación Sanitaria Galicia Sur (IISGS), Campus Lagoas-Marcosende, 36310 Vigo, Spain. .,Departamento de Química Orgánica, Campus Lagoas-Marcosende, 36310 Vigo, Spain
| | - Generosa Gómez
- Departamento de Química Orgánica and Instituto de Investigación Sanitaria Galicia Sur (IISGS), Campus Lagoas-Marcosende, 36310 Vigo, Spain. .,Departamento de Química Orgánica, Campus Lagoas-Marcosende, 36310 Vigo, Spain
| | - Yagamare Fall
- Departamento de Química Orgánica and Instituto de Investigación Sanitaria Galicia Sur (IISGS), Campus Lagoas-Marcosende, 36310 Vigo, Spain. .,Departamento de Química Orgánica, Campus Lagoas-Marcosende, 36310 Vigo, Spain
| | - Carlos Silva López
- Departamento de Química Orgánica and Instituto de Investigación Sanitaria Galicia Sur (IISGS), Campus Lagoas-Marcosende, 36310 Vigo, Spain. .,Departamento de Química Orgánica, Campus Lagoas-Marcosende, 36310 Vigo, Spain
| |
Collapse
|
17
|
Martínez-García L, Prado G, Góñez KV, Paleo MR, Sardina FJ. Stereoselective Synthesis of Hydrindane and Hydroazulene Derivatives by Transannular Cyclization of Nine- and Ten-Membered Carbocycles. J Org Chem 2021; 86:13684-13692. [PMID: 34519499 DOI: 10.1021/acs.joc.1c01751] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
Treatment of cis-fused bicyclic diene dicarboxylates with Li/naphthalene triggers a tandem ring-opening and transannular cyclization process that stereoselectively yields hydroazulenes and hydrindanes derivatives. Cyclononadienyl diesters, which can be isolated after the ring-opening step by judicious choice of the reaction conditions, undergo a tandem conjugate addition/intramolecular Michael addition upon treatment with chiral lithium amides to give bicyclic β-amino esters in a process where 4 contiguous stereocenters are formed with high diastereocontrol. A concise route toward the highly enantioenriched AEF ring core of the aconitine-type alkaloids has been developed as an application of this methodology. The starting cis-fused bicyclic dicarboxylates are easily prepared in one step by reductive alkylation of diisopropyl phthalate (Na/THF, followed by the appropriate bis-electrophiles).
Collapse
Affiliation(s)
- Lucas Martínez-García
- Centro Singular de Investigación en Química Biolóxica e Materiais Moleculares (CIQUS) and Departamento de Química Orgánica, Universidade de Santiago de Compostela, 15782 Santiago de Compostela, Spain
| | - Gustavo Prado
- Centro Singular de Investigación en Química Biolóxica e Materiais Moleculares (CIQUS) and Departamento de Química Orgánica, Universidade de Santiago de Compostela, 15782 Santiago de Compostela, Spain
| | - Karen V Góñez
- Centro Singular de Investigación en Química Biolóxica e Materiais Moleculares (CIQUS) and Departamento de Química Orgánica, Universidade de Santiago de Compostela, 15782 Santiago de Compostela, Spain
| | - M Rita Paleo
- Centro Singular de Investigación en Química Biolóxica e Materiais Moleculares (CIQUS) and Departamento de Química Orgánica, Universidade de Santiago de Compostela, 15782 Santiago de Compostela, Spain
| | - F Javier Sardina
- Centro Singular de Investigación en Química Biolóxica e Materiais Moleculares (CIQUS) and Departamento de Química Orgánica, Universidade de Santiago de Compostela, 15782 Santiago de Compostela, Spain
| |
Collapse
|
18
|
Liu Z, Hu J, Ding H. Electrochemical ODI-[5+2] Cascade for the Syntheses of Diversely Functionalized Bicyclo[3.2.1]octane Frameworks. Org Lett 2021; 23:6745-6749. [PMID: 34402626 DOI: 10.1021/acs.orglett.1c02321] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/07/2023]
Abstract
A metal- and hypervalent iodine reagent-free electrochemical oxidative dearomatization-induced [5+2] cycloaddition/pinacol rearrangement cascade reaction was described. The electrosynthetic method showed strong tolerance for vinylphenols, ethynylphenols, and allenylphenols, which thus enabled the rapid assembly of diversely functionalized bicyclo[3.2.1]octanes in 41-95% yields and up to >20:1 dr. This protocol could be scaled up to gram amounts and should find wide application in complex natural product synthesis.
Collapse
Affiliation(s)
- Zhaobo Liu
- Department of Chemistry, Zhejiang University, Hangzhou 310058, China
| | - Jialei Hu
- Center of Chemistry for Frontier Technologies, Department of Chemistry, Zhejiang University, Hangzhou 310058, China
| | - Hanfeng Ding
- Center of Chemistry for Frontier Technologies, Department of Chemistry, Zhejiang University, Hangzhou 310058, China
| |
Collapse
|
19
|
Yu K, Yao F, Zeng Q, Xie H, Ding H. Asymmetric Total Syntheses of (+)-Davisinol and (+)-18-Benzoyldavisinol: A HAT-Initiated Transannular Redox Radical Approach. J Am Chem Soc 2021; 143:10576-10581. [PMID: 34240855 DOI: 10.1021/jacs.1c05703] [Citation(s) in RCA: 13] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/21/2023]
Abstract
The first and asymmetric total syntheses of two C11-oxygenated hetisine-type diterpenoid alkaloids, namely, (+)-davisinol and (+)-18-benzoyldavisinol, is described. The concise synthetic approach features a HAT-initiated transannular redox radical cyclization, an ODI-Diels-Alder cycloaddition, and an acylative kinetic resolution. By incorporating an efficient late-stage assembly of the azabicycle, our strategy would streamline the synthetic design of C20-diterpenoid alkaloids and pave the way for their modular syntheses.
Collapse
Affiliation(s)
- Kuan Yu
- Department of Chemistry, Zhejiang University, Hangzhou 310058, China
| | - Fengjie Yao
- Department of Chemistry, Zhejiang University, Hangzhou 310058, China
| | - Qingrui Zeng
- Department of Chemistry, Zhejiang University, Hangzhou 310058, China
| | - Hujun Xie
- Department of Applied Chemistry, Zhejiang Gongshang University, Hangzhou 310018, China
| | - Hanfeng Ding
- Department of Chemistry, Zhejiang University, Hangzhou 310058, China.,State Key Laboratory of Elemento-Organic Chemistry, Nankai University, Tianjin 300071, China
| |
Collapse
|
20
|
Anthony SM, Tona V, Zou Y, Morrill LA, Billingsley JM, Lim M, Tang Y, Houk KN, Garg NK. Total Synthesis of (-)-Strictosidine and Interception of Aryne Natural Product Derivatives "Strictosidyne" and "Strictosamidyne". J Am Chem Soc 2021; 143:7471-7479. [PMID: 33955226 DOI: 10.1021/jacs.1c02004] [Citation(s) in RCA: 13] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
Abstract
Monoterpene indole alkaloids are a large class of natural products derived from a single biosynthetic precursor, strictosidine. We describe a synthetic approach to strictosidine that relies on a key facially selective Diels-Alder reaction between a glucosyl-modified alkene and an enal to set the C15-C20-C21 stereotriad. DFT calculations were used to examine the origin of stereoselectivity in this key step, wherein two of 16 possible isomers are predominantly formed. These calculations suggest the presence of a glucosyl unit, also inherent in the strictosidine structure, guides diastereoselectivity, with the reactive conformation of the vinyl glycoside dienophile being controlled by an exo-anomeric effect. (-)-Strictosidine was subsequently accessed using late-stage synthetic manipulations and an enzymatic Pictet-Spengler reaction. Several new natural product analogs were also accessed, including precursors to two unusual aryne natural product derivatives termed "strictosidyne" and "strictosamidyne". These studies provide a strategy for accessing glycosylic natural products and a new platform to access monoterpene indole alkaloids and their derivatives.
Collapse
Affiliation(s)
- Sarah M Anthony
- Department of Chemistry and Biochemistry, University of California, Los Angeles, California 90095, United States
| | - Veronica Tona
- Department of Chemistry and Biochemistry, University of California, Los Angeles, California 90095, United States
| | - Yike Zou
- Department of Chemistry and Biochemistry, University of California, Los Angeles, California 90095, United States
| | - Lucas A Morrill
- Department of Chemistry and Biochemistry, University of California, Los Angeles, California 90095, United States
| | - John M Billingsley
- Department of Chemical and Biomolecular Engineering, University of California, Los Angeles, California 90095, United States
| | - Megan Lim
- Department of Chemistry and Biochemistry, University of California, Los Angeles, California 90095, United States
| | - Yi Tang
- Department of Chemistry and Biochemistry, University of California, Los Angeles, California 90095, United States
| | - K N Houk
- Department of Chemistry and Biochemistry, University of California, Los Angeles, California 90095, United States
| | - Neil K Garg
- Department of Chemistry and Biochemistry, University of California, Los Angeles, California 90095, United States
| |
Collapse
|
21
|
Zhang Q, Yang Z, Wang Q, Liu S, Zhou T, Zhao Y, Zhang M. Asymmetric Total Synthesis of Hetidine-Type C 20-Diterpenoid Alkaloids: (+)-Talassimidine and (+)-Talassamine. J Am Chem Soc 2021; 143:7088-7095. [PMID: 33938219 DOI: 10.1021/jacs.1c01865] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/25/2023]
Abstract
Here, we report the first asymmetric total synthesis of (+)-talassimidine and (+)-talassamine, two hetidine-type C20-diterpenoid alkaloids. A highly regio- and diastereoselective 1,3-dipolar cycloaddition of an azomethine ylide yielded a chiral tetracyclic intermediate in high enantiopurity, thus providing the structural basis for asymmetric assembly of the hexacyclic hetidine skeleton. In this key step, the introduction of a single chiral center induces four new continuous chiral centers. Another key transformation is the dearomative cyclopropanation of the benzene ring and subsequent SN2-like ring opening of the resultant cyclopropane ring with water as a nucleophile, which not only establishes the B ring but also precisely installs the difficult-to-achieve equatorial C7-OH group.
Collapse
Affiliation(s)
- Quanzheng Zhang
- Chongqing Key Laboratory of Natural Product Synthesis and Drug Research, School of Pharmaceutical Sciences, Chongqing University, Chongqing 401331, China
| | - Zhao Yang
- Chongqing Key Laboratory of Natural Product Synthesis and Drug Research, School of Pharmaceutical Sciences, Chongqing University, Chongqing 401331, China
| | - Qi Wang
- Chongqing Key Laboratory of Natural Product Synthesis and Drug Research, School of Pharmaceutical Sciences, Chongqing University, Chongqing 401331, China
| | - Shuangwei Liu
- Chongqing Key Laboratory of Natural Product Synthesis and Drug Research, School of Pharmaceutical Sciences, Chongqing University, Chongqing 401331, China
| | - Tao Zhou
- Chongqing Key Laboratory of Natural Product Synthesis and Drug Research, School of Pharmaceutical Sciences, Chongqing University, Chongqing 401331, China
| | - Yankun Zhao
- Chongqing Key Laboratory of Natural Product Synthesis and Drug Research, School of Pharmaceutical Sciences, Chongqing University, Chongqing 401331, China
| | - Min Zhang
- Chongqing Key Laboratory of Natural Product Synthesis and Drug Research, School of Pharmaceutical Sciences, Chongqing University, Chongqing 401331, China
| |
Collapse
|
22
|
Yang G, Zhu M, Zhao X, Lei J, Xu L. A new route to BCD tricyclic fragment of C19-diterpenoid alkaloids via intramolecular Pauson-Khand reaction followed by anionic 1,2-migration rearrangement. Tetrahedron Lett 2021. [DOI: 10.1016/j.tetlet.2021.152975] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
|
23
|
Shimakawa T, Hagiwara K, Inoue M. Total Synthesis of Talatisamine: Exploration of Convergent Synthetic Strategies. BULLETIN OF THE CHEMICAL SOCIETY OF JAPAN 2021. [DOI: 10.1246/bcsj.20200400] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
Affiliation(s)
- Tsukasa Shimakawa
- Graduate School of Pharmaceutical Sciences, The University of Tokyo, 7-3-1 Hongo, Bunkyo-ku, Tokyo 113-0033, Japan
| | - Koichi Hagiwara
- Graduate School of Pharmaceutical Sciences, The University of Tokyo, 7-3-1 Hongo, Bunkyo-ku, Tokyo 113-0033, Japan
| | - Masayuki Inoue
- Graduate School of Pharmaceutical Sciences, The University of Tokyo, 7-3-1 Hongo, Bunkyo-ku, Tokyo 113-0033, Japan
| |
Collapse
|
24
|
Schuppe AW, Liu Y, Newhouse TR. An invocation for computational evaluation of isomerization transforms: cationic skeletal reorganizations as a case study. Nat Prod Rep 2021; 38:510-527. [PMID: 32931541 PMCID: PMC7956923 DOI: 10.1039/d0np00005a] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022]
Abstract
Covering: 2010 to 2020This review article describes how cationic rearrangement reactions have been used in natural product total synthesis over the last decade as a case study for the many productive ways by which isomerization reactions are enabling for synthesis. This review argues that isomerization reactions in particular are well suited for computational evaluation, as relatively simple calculations can provide significant insight.
Collapse
Affiliation(s)
- Alexander W Schuppe
- Department of Chemistry, Yale University, 225 Prospect Street, New Haven, Connecticut 06511-8107, USA.
| | | | | |
Collapse
|
25
|
|
26
|
Zeng ZY, Liao JX, Hu ZN, Liu DY, Zhang QJ, Sun JS. Chemical synthesis of quillaic acid, the aglycone of QS-21. Org Chem Front 2021. [DOI: 10.1039/d0qo01356k] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/12/2023]
Abstract
With the easily available protoescigenin as a starting material, a protocol to chemically synthesize quillaic acid was established.
Collapse
Affiliation(s)
- Zhi-Yong Zeng
- National Research Center for Carbohydrate Synthesis
- Jiangxi Normal University
- Nanchang 330022
- China
| | - Jin-Xi Liao
- National Research Center for Carbohydrate Synthesis
- Jiangxi Normal University
- Nanchang 330022
- China
| | - Zhen-Ni Hu
- National Research Center for Carbohydrate Synthesis
- Jiangxi Normal University
- Nanchang 330022
- China
| | - De-Yong Liu
- National Research Center for Carbohydrate Synthesis
- Jiangxi Normal University
- Nanchang 330022
- China
| | - Qing-Ju Zhang
- National Research Center for Carbohydrate Synthesis
- Jiangxi Normal University
- Nanchang 330022
- China
| | - Jian-Song Sun
- National Research Center for Carbohydrate Synthesis
- Jiangxi Normal University
- Nanchang 330022
- China
| |
Collapse
|
27
|
Abstract
The focus article discusses the innovation of hypervalent(iii) iodine regarding skeletal rearrangement, cycloaddition and cyclization, and sp3 C–H functionalization in natural product synthesis.
Collapse
Affiliation(s)
- Zhuo Wang
- Southern University of Science and Technology
- School of Medicine
- Shenzhen
- People's Republic of China
| |
Collapse
|
28
|
Huang H, Mi F, Li C, He H, Wang F, Liu X, Qin Y. Total Synthesis of Liangshanone. Angew Chem Int Ed Engl 2020. [DOI: 10.1002/ange.202011923] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Affiliation(s)
- Hong‐Xiu Huang
- Key Laboratory of Drug Targeting and Drug Delivery Systems of the Education Ministry and Sichuan Province Sichuan Engineering Laboratory for Plant-Sourced Drugs and Sichuan Research Center for Drug Precision Industrial Technology West China School of Pharmacy Sichuan University Chengdu 610041 China
| | - Fen Mi
- Key Laboratory of Drug Targeting and Drug Delivery Systems of the Education Ministry and Sichuan Province Sichuan Engineering Laboratory for Plant-Sourced Drugs and Sichuan Research Center for Drug Precision Industrial Technology West China School of Pharmacy Sichuan University Chengdu 610041 China
| | - Chunxin Li
- Key Laboratory of Drug Targeting and Drug Delivery Systems of the Education Ministry and Sichuan Province Sichuan Engineering Laboratory for Plant-Sourced Drugs and Sichuan Research Center for Drug Precision Industrial Technology West China School of Pharmacy Sichuan University Chengdu 610041 China
| | - Huan He
- Key Laboratory of Drug Targeting and Drug Delivery Systems of the Education Ministry and Sichuan Province Sichuan Engineering Laboratory for Plant-Sourced Drugs and Sichuan Research Center for Drug Precision Industrial Technology West China School of Pharmacy Sichuan University Chengdu 610041 China
| | - Feng‐Peng Wang
- Key Laboratory of Drug Targeting and Drug Delivery Systems of the Education Ministry and Sichuan Province Sichuan Engineering Laboratory for Plant-Sourced Drugs and Sichuan Research Center for Drug Precision Industrial Technology West China School of Pharmacy Sichuan University Chengdu 610041 China
| | - Xiao‐Yu Liu
- Key Laboratory of Drug Targeting and Drug Delivery Systems of the Education Ministry and Sichuan Province Sichuan Engineering Laboratory for Plant-Sourced Drugs and Sichuan Research Center for Drug Precision Industrial Technology West China School of Pharmacy Sichuan University Chengdu 610041 China
| | - Yong Qin
- Key Laboratory of Drug Targeting and Drug Delivery Systems of the Education Ministry and Sichuan Province Sichuan Engineering Laboratory for Plant-Sourced Drugs and Sichuan Research Center for Drug Precision Industrial Technology West China School of Pharmacy Sichuan University Chengdu 610041 China
| |
Collapse
|
29
|
Huang H, Mi F, Li C, He H, Wang F, Liu X, Qin Y. Total Synthesis of Liangshanone. Angew Chem Int Ed Engl 2020; 59:23609-23614. [PMID: 32902096 DOI: 10.1002/anie.202011923] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/01/2020] [Indexed: 12/18/2022]
Affiliation(s)
- Hong‐Xiu Huang
- Key Laboratory of Drug Targeting and Drug Delivery Systems of the Education Ministry and Sichuan Province Sichuan Engineering Laboratory for Plant-Sourced Drugs and Sichuan Research Center for Drug Precision Industrial Technology West China School of Pharmacy Sichuan University Chengdu 610041 China
| | - Fen Mi
- Key Laboratory of Drug Targeting and Drug Delivery Systems of the Education Ministry and Sichuan Province Sichuan Engineering Laboratory for Plant-Sourced Drugs and Sichuan Research Center for Drug Precision Industrial Technology West China School of Pharmacy Sichuan University Chengdu 610041 China
| | - Chunxin Li
- Key Laboratory of Drug Targeting and Drug Delivery Systems of the Education Ministry and Sichuan Province Sichuan Engineering Laboratory for Plant-Sourced Drugs and Sichuan Research Center for Drug Precision Industrial Technology West China School of Pharmacy Sichuan University Chengdu 610041 China
| | - Huan He
- Key Laboratory of Drug Targeting and Drug Delivery Systems of the Education Ministry and Sichuan Province Sichuan Engineering Laboratory for Plant-Sourced Drugs and Sichuan Research Center for Drug Precision Industrial Technology West China School of Pharmacy Sichuan University Chengdu 610041 China
| | - Feng‐Peng Wang
- Key Laboratory of Drug Targeting and Drug Delivery Systems of the Education Ministry and Sichuan Province Sichuan Engineering Laboratory for Plant-Sourced Drugs and Sichuan Research Center for Drug Precision Industrial Technology West China School of Pharmacy Sichuan University Chengdu 610041 China
| | - Xiao‐Yu Liu
- Key Laboratory of Drug Targeting and Drug Delivery Systems of the Education Ministry and Sichuan Province Sichuan Engineering Laboratory for Plant-Sourced Drugs and Sichuan Research Center for Drug Precision Industrial Technology West China School of Pharmacy Sichuan University Chengdu 610041 China
| | - Yong Qin
- Key Laboratory of Drug Targeting and Drug Delivery Systems of the Education Ministry and Sichuan Province Sichuan Engineering Laboratory for Plant-Sourced Drugs and Sichuan Research Center for Drug Precision Industrial Technology West China School of Pharmacy Sichuan University Chengdu 610041 China
| |
Collapse
|
30
|
Alfonzo E, Millimaci AM, Beeler AB. Photoredox Generated Carbonyl Ylides Enable a Modular Approach to Aryltetralin, Dihydronaphthalene, and Arylnaphthalene Lignans. Org Lett 2020; 22:6489-6493. [PMID: 32806135 DOI: 10.1021/acs.orglett.0c02286] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
A one-pot synthesis of dihydronaphthalenes and arylnaphthalenes from epoxides and common dipolarophiles is described. The reaction proceeds through photoredox activation of epoxides to carbonyl ylides, which undergo concerted [3 + 2] dipolar cycloaddition with dipolarophiles to provide tetrahydrofurans or 2,5-dihydrofurans. In the same flask, acid promoted rearrangement affords densely functionalized dihydronaphthalenes and arylnaphthalenes, respectively, in an overall redox-neutral sequence of transformations. Succinct total synthesis (4-6 steps) of pycnanthulignene B and C and justicidin E are reported.
Collapse
Affiliation(s)
- Edwin Alfonzo
- Department of Chemistry, Boston University, Boston, Massachusetts 02215, United States
| | - Alexandra M Millimaci
- Department of Chemistry, Boston University, Boston, Massachusetts 02215, United States
| | - Aaron B Beeler
- Department of Chemistry, Boston University, Boston, Massachusetts 02215, United States
| |
Collapse
|
31
|
Minagawa K, Kamakura D, Hagiwara K, Inoue M. Construction of the ABCE-ring structure of talatisamine via decarboxylative radical cyclization. Tetrahedron 2020. [DOI: 10.1016/j.tet.2020.131385] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
|
32
|
|
33
|
McCowen SV, Doering NA, Sarpong R. Retrosynthetic strategies and their impact on synthesis of arcutane natural products. Chem Sci 2020; 11:7538-7552. [PMID: 33552460 PMCID: PMC7860588 DOI: 10.1039/d0sc01441a] [Citation(s) in RCA: 23] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/10/2020] [Accepted: 04/20/2020] [Indexed: 01/18/2023] Open
Abstract
Decisions, decisions, decisions: the interplay between different retrosynthetic strategies in the synthesis of the highly bridged, polycyclic arcutane natural products.
Retrosynthetic analysis is a cornerstone of modern natural product synthesis, providing an array of tools for disconnecting structures. However, discussion of retrosynthesis is often limited to the reactions used to form selected bonds in the forward synthesis. This review details three strategies for retrosynthesis, focusing on how they can be combined to plan the synthesis of polycyclic natural products, such as atropurpuran and the related arcutane alkaloids. Recent syntheses of natural products containing the arcutane framework showcase how these strategies for retrosynthesis can be combined to plan the total synthesis of highly caged scaffolds. Comparison of multiple syntheses of the same target provides a unique opportunity for detailed analysis of the impact of retrosynthetic disconnections on synthesis outcomes.
Collapse
Affiliation(s)
- Shelby V McCowen
- Department of Chemistry , University of California , Berkeley , California 94720 , USA .
| | - Nicolle A Doering
- Department of Chemistry , University of California , Berkeley , California 94720 , USA .
| | - Richmond Sarpong
- Department of Chemistry , University of California , Berkeley , California 94720 , USA .
| |
Collapse
|
34
|
Li HQ, Xu JY, Gao YY, Jin L, Chen JM, Chen FZ. Supramolecular structure, in vivo biological activities and molecular-docking-based potential cardiotoxic exploration of aconine hydrochloride monohydrate as a novel salt form. ACTA CRYSTALLOGRAPHICA SECTION B, STRUCTURAL SCIENCE, CRYSTAL ENGINEERING AND MATERIALS 2020; 76:208-224. [PMID: 32831223 DOI: 10.1107/s2052520620001250] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/17/2019] [Accepted: 01/29/2020] [Indexed: 06/11/2023]
Abstract
Despite the high profile of aconine in WuTou injection, there has been no preparative technology or structural studies of its salt as the pharmaceutical product. The lack of any halide salt forms is surprising as aconine contains a tertiary nitrogen atom. In this work, aconine was prepared from the degradation of aconitine in Aconiti kusnezoffii radix (CaoWu). A green chemistry technique was applied to enrich the lipophilic-poor aconine. Reaction of aconine with hydrochloride acid resulted in protonation of the nitrogen atom and gave a novel salt form (C25H42NO9+·Cl-·H2O; aconine hydrochloride monohydrate, AHM), whose cation in the crystal structure was elucidated based on extensive spectroscopic and X-ray crystallographic analyses. The AHM crystal had a Z' = 3 structure with three independent cation-anion pairs, with profound conformational differences among the aconine cations. The central framework of each aconine cation was compared with that of previously reported aconitine, proving that protonation of the nitrogen atom induced the structure rearrangement. In the crystal of AHM, aconine cations, chloride anions and water molecules interacted through inter-species O-H...Cl and O-H...O hydrogen bonds; this complex hydrogen-bonding network stabilizes the supramolecular structure. The seriously disordered solvent molecules were treated using the PLATON SQUEEZE procedure [Spek (2015). Acta Cryst. C71, 9-18] and their atoms were therefore omitted from the refinement. Bioactivity studies indicated that AHM promoted in vitro proliferative activities of RAW264.7 cells. Molecular docking suggested AHM could target cardiotoxic protein through the hydrogen-bonding interactions. The structural confirmation of AHM offers a rational approach for improving the pharmaceutical technology of WuTou injection.
Collapse
Affiliation(s)
- Han Qing Li
- State Clinical Trial Institution of New Drugs, International Mongolian Hospital of Inner Mongolia, No. 83, Da Xue East Road, Sai Han District, Hohhot, Inner Mongolia 010065, People's Republic of China
| | - Jia Yin Xu
- Mongolian Pharmaceutical Preparation Center, International Mongolian Hospital of Inner Mongolia, Hohhot, Inner Mongolia 010065, People's Republic of China
| | - Yuan Yuan Gao
- State Clinical Trial Institution of New Drugs, International Mongolian Hospital of Inner Mongolia, No. 83, Da Xue East Road, Sai Han District, Hohhot, Inner Mongolia 010065, People's Republic of China
| | - Liang Jin
- State Clinical Trial Institution of New Drugs, International Mongolian Hospital of Inner Mongolia, No. 83, Da Xue East Road, Sai Han District, Hohhot, Inner Mongolia 010065, People's Republic of China
| | - Jian Ming Chen
- Department of Chemistry, Greenpure Biopharma Co., Ltd, Chengdu, Sichuan 614041, People's Republic of China
| | - Feng Zheng Chen
- Department of Chemistry, Leshan Normal University, Leshan, Sichuan 614004, People's Republic of China
| |
Collapse
|
35
|
Naka H, Naraoka A. Recent advances in transfer hydration of nitriles with amides or aldoximes. Tetrahedron Lett 2020. [DOI: 10.1016/j.tetlet.2019.151557] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/26/2023]
|
36
|
Zeng Z, Qasem AMA, Kociok-Köhn G, Rowan MG, Blagbrough IS. The 1α-hydroxy-A-rings of norditerpenoid alkaloids are twisted-boat conformers. RSC Adv 2020; 10:18797-18805. [PMID: 35518334 PMCID: PMC9053968 DOI: 10.1039/d0ra03811c] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/24/2020] [Accepted: 05/01/2020] [Indexed: 11/21/2022] Open
Abstract
The skeletal conformations of naturally occurring norditerpenoid alkaloids fix their substituent functional groups in space, thereby directing their bioactivities.
Collapse
Affiliation(s)
- Ziyu Zeng
- Department of Pharmacy and Pharmacology
- University of Bath
- Bath BA2 7AY
- UK
| | | | | | - Michael G. Rowan
- Department of Pharmacy and Pharmacology
- University of Bath
- Bath BA2 7AY
- UK
| | - Ian S. Blagbrough
- Department of Pharmacy and Pharmacology
- University of Bath
- Bath BA2 7AY
- UK
| |
Collapse
|
37
|
Cao SY, Yue HJ, Zhu MQ, Xu L. Synthesis of tricyclo[7.2.1.09,10]dodecan-11-one core ring systems of norditerpenoid alkaloids and racemulosine. Org Chem Front 2020. [DOI: 10.1039/d0qo00088d] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
Abstract
A synthetic strategy involving [2 + 2] enyne cycloaddition and pinacol rearrangement to construct common BCD ring systems of norditerpenoid alkaloids and racemulosine was developed.
Collapse
Affiliation(s)
- Su-Yan Cao
- Key Laboratory of Drug Targeting
- Ministry of Education
- and Department of Chemistry of Medicinal Natural Products
- West China College of Pharmacy
- Sichuan University
| | - Hui-Jie Yue
- Key Laboratory of Drug Targeting
- Ministry of Education
- and Department of Chemistry of Medicinal Natural Products
- West China College of Pharmacy
- Sichuan University
| | - Meng-Qian Zhu
- Key Laboratory of Drug Targeting
- Ministry of Education
- and Department of Chemistry of Medicinal Natural Products
- West China College of Pharmacy
- Sichuan University
| | - Liang Xu
- Key Laboratory of Drug Targeting
- Ministry of Education
- and Department of Chemistry of Medicinal Natural Products
- West China College of Pharmacy
- Sichuan University
| |
Collapse
|
38
|
Kamakura D, Todoroki H, Urabe D, Hagiwara K, Inoue M. Total Synthesis of Talatisamine. Angew Chem Int Ed Engl 2019. [DOI: 10.1002/ange.201912737] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/28/2022]
Affiliation(s)
- Daiki Kamakura
- Graduate School of Pharmaceutical Sciences The University of Tokyo 7-3-1 Hongo Bunkyo-ku Tokyo 113-0033 Japan
| | - Hidenori Todoroki
- Graduate School of Pharmaceutical Sciences The University of Tokyo 7-3-1 Hongo Bunkyo-ku Tokyo 113-0033 Japan
| | - Daisuke Urabe
- Faculty of Engineering Toyama Prefectural University 5180 Kurokawa, Imizu-shi Toyama 939-0398 Japan
| | - Koichi Hagiwara
- Graduate School of Pharmaceutical Sciences The University of Tokyo 7-3-1 Hongo Bunkyo-ku Tokyo 113-0033 Japan
| | - Masayuki Inoue
- Graduate School of Pharmaceutical Sciences The University of Tokyo 7-3-1 Hongo Bunkyo-ku Tokyo 113-0033 Japan
| |
Collapse
|
39
|
Kamakura D, Todoroki H, Urabe D, Hagiwara K, Inoue M. Total Synthesis of Talatisamine. Angew Chem Int Ed Engl 2019; 59:479-486. [PMID: 31677324 DOI: 10.1002/anie.201912737] [Citation(s) in RCA: 34] [Impact Index Per Article: 6.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/05/2019] [Indexed: 12/15/2022]
Abstract
Talatisamine (1) is a member of the C19 -diterpenoid alkaloid family, and exhibits K+ channel inhibitory and antiarrhythmic activities. The formidable synthetic challenge that 1 presents is due to its highly oxidized and intricately fused hexacyclic 6/7/5/6/6/5-membered-ring structure (ABCDEF-ring) with 12 contiguous stereocenters. Here we report an efficient synthetic route to 1 by the assembly of two structurally simple fragments, chiral 6/6-membered AE-ring 7 and aromatic 6-membered D-ring 6. AE-ring 7 was constructed from 2-cyclohexenone (8) through fusing an N-ethylpiperidine ring by a double Mannich reaction. After coupling 6 with 7, an oxidative dearomatization/Diels-Alder reaction sequence generated fused pentacycle 4 b. The newly formed 6/6-membered ring system was then stereospecifically reorganized into the 7/5-membered BC-ring of 3 via a Wagner-Meerwein rearrangement. Finally, Hg(OAc)2 induced an oxidative aza-Prins cyclization of 2, thereby forging the remaining 5-membered F-ring. The total synthesis of 1 was thus accomplished by optimizing and orchestrating 33 transformations from 8.
Collapse
Affiliation(s)
- Daiki Kamakura
- Graduate School of Pharmaceutical Sciences, The University of Tokyo, 7-3-1 Hongo, Bunkyo-ku, Tokyo, 113-0033, Japan
| | - Hidenori Todoroki
- Graduate School of Pharmaceutical Sciences, The University of Tokyo, 7-3-1 Hongo, Bunkyo-ku, Tokyo, 113-0033, Japan
| | - Daisuke Urabe
- Faculty of Engineering, Toyama Prefectural University, 5180 Kurokawa, Imizu-shi, Toyama, 939-0398, Japan
| | - Koichi Hagiwara
- Graduate School of Pharmaceutical Sciences, The University of Tokyo, 7-3-1 Hongo, Bunkyo-ku, Tokyo, 113-0033, Japan
| | - Masayuki Inoue
- Graduate School of Pharmaceutical Sciences, The University of Tokyo, 7-3-1 Hongo, Bunkyo-ku, Tokyo, 113-0033, Japan
| |
Collapse
|
40
|
Wu Y, Shao S, Guo Q, Xu C, Xia H, Zhang T, Shi J. Aconicatisulfonines A and B, Analgesic Zwitterionic C20-Diterpenoid Alkaloids with a Rearranged Atisane Skeleton from Aconitum carmichaelii. Org Lett 2019; 21:6850-6854. [DOI: 10.1021/acs.orglett.9b02479] [Citation(s) in RCA: 25] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/08/2023]
Affiliation(s)
- Yuzhuo Wu
- State Key Laboratory of Bioactive Substance and Function of Natural Medicines, Institute of Materia Medica, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing 100050, People’s Republic of China
| | - Shuai Shao
- State Key Laboratory of Bioactive Substance and Function of Natural Medicines, Institute of Materia Medica, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing 100050, People’s Republic of China
| | - Qinglan Guo
- State Key Laboratory of Bioactive Substance and Function of Natural Medicines, Institute of Materia Medica, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing 100050, People’s Republic of China
| | - Chengbo Xu
- State Key Laboratory of Bioactive Substance and Function of Natural Medicines, Institute of Materia Medica, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing 100050, People’s Republic of China
| | - Huan Xia
- State Key Laboratory of Bioactive Substance and Function of Natural Medicines, Institute of Materia Medica, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing 100050, People’s Republic of China
| | - Tiantai Zhang
- State Key Laboratory of Bioactive Substance and Function of Natural Medicines, Institute of Materia Medica, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing 100050, People’s Republic of China
| | - Jiangong Shi
- State Key Laboratory of Bioactive Substance and Function of Natural Medicines, Institute of Materia Medica, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing 100050, People’s Republic of China
| |
Collapse
|
41
|
Zhou S, Xia K, Leng X, Li A. Asymmetric Total Synthesis of Arcutinidine, Arcutinine, and Arcutine. J Am Chem Soc 2019; 141:13718-13723. [PMID: 31276619 DOI: 10.1021/jacs.9b05818] [Citation(s) in RCA: 44] [Impact Index Per Article: 8.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
We have accomplished the asymmetric total synthesis of arcutinidine, arcutinine, and arcutine, three arcutine-type C20-diterpenoid alkaloids. A pentacyclic intermediate was rapidly assembled by using two Diels-Alder reactions. We developed a cascade sequence of Prins cyclization and Wagner-Meerwein rearrangement to construct the core of arcutinidine, which was then elaborated into an oxygenated pentacycle through a scalable route. Chemoselective reductive amination followed by spontaneous imine formation furnished the pyrroline motif in the final stage. We clarified the S configuration of the α-carbon of the acyl group within arcutine through chemical synthesis and crystallographic analysis.
Collapse
Affiliation(s)
- Shupeng Zhou
- State Key Laboratory of Bioorganic and Natural Products Chemistry, Center for Excellence in Molecular Synthesis, Shanghai Institute of Organic Chemistry, University of Chinese Academy of Sciences , Chinese Academy of Sciences , 345 Lingling Road , Shanghai 200032 , China
| | - Kaifu Xia
- State Key Laboratory of Bioorganic and Natural Products Chemistry, Center for Excellence in Molecular Synthesis, Shanghai Institute of Organic Chemistry, University of Chinese Academy of Sciences , Chinese Academy of Sciences , 345 Lingling Road , Shanghai 200032 , China
| | - Xuebing Leng
- State Key Laboratory of Organometallic Chemistry, Shanghai Institute of Organic Chemistry , Chinese Academy of Sciences , 345 Lingling Road , Shanghai 200032 , China
| | - Ang Li
- State Key Laboratory of Bioorganic and Natural Products Chemistry, Center for Excellence in Molecular Synthesis, Shanghai Institute of Organic Chemistry, University of Chinese Academy of Sciences , Chinese Academy of Sciences , 345 Lingling Road , Shanghai 200032 , China
| |
Collapse
|
42
|
Pearson CM, Fyfe JWB, Snaddon TN. A Regio‐ and Stereodivergent Synthesis of Homoallylic Amines by a One‐Pot Cooperative‐Catalysis‐Based Allylic Alkylation/Hofmann Rearrangement Strategy. Angew Chem Int Ed Engl 2019. [DOI: 10.1002/ange.201905426] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/06/2023]
Affiliation(s)
- Colin M. Pearson
- Department of ChemistryIndiana University 800 East Kirkwood Avenue Bloomington IN 47405 USA
| | - James W. B. Fyfe
- Department of ChemistryIndiana University 800 East Kirkwood Avenue Bloomington IN 47405 USA
| | - Thomas N. Snaddon
- Department of ChemistryIndiana University 800 East Kirkwood Avenue Bloomington IN 47405 USA
| |
Collapse
|
43
|
Pearson CM, Fyfe JWB, Snaddon TN. A Regio- and Stereodivergent Synthesis of Homoallylic Amines by a One-Pot Cooperative-Catalysis-Based Allylic Alkylation/Hofmann Rearrangement Strategy. Angew Chem Int Ed Engl 2019; 58:10521-10527. [PMID: 31132203 DOI: 10.1002/anie.201905426] [Citation(s) in RCA: 54] [Impact Index Per Article: 10.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/01/2019] [Indexed: 01/19/2023]
Abstract
Herein, we report a modular synthetic route to linear and branched homoallylic amines that operates through a sequential one-pot Lewis base/transition-metal catalyzed allylic alkylation/Hofmann rearrangement strategy. This protocol is operationally trivial, proceeds from simple and easily prepared substrates and catalysts, and enables all aspects of regio- and stereoselectivity to be controlled through a conserved experimental protocol. Overall, the high levels of enantio-, regio-, and diastereoselectivity obtained, in concert with the ability to access orthogonally protected or free amines, render this a straightforward and effective approach for the preparation of useful enantioenriched homoallylic amines. We have also demonstrated the utility of the products in the context of pharmaceutical synthesis.
Collapse
Affiliation(s)
- Colin M Pearson
- Department of Chemistry, Indiana University, 800 East Kirkwood Avenue, Bloomington, IN, 47405, USA
| | - James W B Fyfe
- Department of Chemistry, Indiana University, 800 East Kirkwood Avenue, Bloomington, IN, 47405, USA
| | - Thomas N Snaddon
- Department of Chemistry, Indiana University, 800 East Kirkwood Avenue, Bloomington, IN, 47405, USA
| |
Collapse
|
44
|
Yu K, Yang Z, Liu C, Wu S, Hong X, Zhao X, Ding H. Total Syntheses of Rhodomolleins XX and XXII: A Reductive Epoxide‐Opening/Beckwith–Dowd Approach. Angew Chem Int Ed Engl 2019; 58:8556-8560. [DOI: 10.1002/anie.201903349] [Citation(s) in RCA: 41] [Impact Index Per Article: 8.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/18/2019] [Indexed: 11/06/2022]
Affiliation(s)
- Kuan Yu
- Department of ChemistryZhejiang University Hangzhou 310058 China
| | - Zhen‐Ning Yang
- Department of ChemistryZhejiang University Hangzhou 310058 China
| | - Chun‐Hui Liu
- Department of ChemistryZhejiang University Hangzhou 310058 China
| | - Shao‐Qi Wu
- Department of ChemistryZhejiang University Hangzhou 310058 China
| | - Xin Hong
- Department of ChemistryZhejiang University Hangzhou 310058 China
| | - Xiao‐Li Zhao
- Shanghai Key Laboratory of Green Chemistry and Chemical ProcessesDepartment of ChemistryEast China Normal University Shanghai 200062 China
| | - Hanfeng Ding
- Department of ChemistryZhejiang University Hangzhou 310058 China
| |
Collapse
|
45
|
Nie W, Gong J, Chen Z, Liu J, Tian D, Song H, Liu XY, Qin Y. Enantioselective Total Synthesis of (−)-Arcutinine. J Am Chem Soc 2019; 141:9712-9718. [PMID: 31136168 DOI: 10.1021/jacs.9b04847] [Citation(s) in RCA: 48] [Impact Index Per Article: 9.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/24/2023]
Affiliation(s)
- Wei Nie
- Key Laboratory of Drug-Targeting and Drug Delivery System of the Education Ministry, 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, P.R. China
| | - Jing Gong
- Key Laboratory of Drug-Targeting and Drug Delivery System of the Education Ministry, 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, P.R. China
| | - Zhihao Chen
- Key Laboratory of Drug-Targeting and Drug Delivery System of the Education Ministry, 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, P.R. China
| | - Jiazhen Liu
- Key Laboratory of Drug-Targeting and Drug Delivery System of the Education Ministry, 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, P.R. China
| | - Di Tian
- Key Laboratory of Drug-Targeting and Drug Delivery System of the Education Ministry, 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, P.R. China
| | - Hao Song
- Key Laboratory of Drug-Targeting and Drug Delivery System of the Education Ministry, 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, P.R. China
| | - Xiao-Yu Liu
- Key Laboratory of Drug-Targeting and Drug Delivery System of the Education Ministry, 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, P.R. China
| | - Yong Qin
- Key Laboratory of Drug-Targeting and Drug Delivery System of the Education Ministry, 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, P.R. China
| |
Collapse
|
46
|
Chen Y, Hu J, Guo L, Zhong W, Ning C, Xu J. A Concise Total Synthesis of (−)‐Himalensine A. Angew Chem Int Ed Engl 2019; 58:7390-7394. [DOI: 10.1002/anie.201902908] [Citation(s) in RCA: 36] [Impact Index Per Article: 7.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/07/2019] [Indexed: 12/14/2022]
Affiliation(s)
- Yuye Chen
- Department of Chemistry and Shenzhen Grubbs InstituteSouthern University of Science and Technology Shenzhen Guangdong China
- State Key Laboratory of Quality Research in Chinese MedicineInstitute of Chinese Medical SciencesUniversity of Macau China
| | - Jingping Hu
- Department of Chemistry and Shenzhen Grubbs InstituteSouthern University of Science and Technology Shenzhen Guangdong China
- School of Chemistry and Chemical EngineeringHarbin Institute of Technology Harbin Heilongjiang China
| | - Lian‐Dong Guo
- Department of Chemistry and Shenzhen Grubbs InstituteSouthern University of Science and Technology Shenzhen Guangdong China
| | - Weihe Zhong
- Department of Chemistry and Shenzhen Grubbs InstituteSouthern University of Science and Technology Shenzhen Guangdong China
| | - Chengqing Ning
- Department of Chemistry and Shenzhen Grubbs InstituteSouthern University of Science and Technology Shenzhen Guangdong China
- SUSTech Academy for Advanced Interdisciplinary Studies Shenzhen Guangdong China
| | - Jing Xu
- Department of Chemistry and Shenzhen Grubbs InstituteSouthern University of Science and Technology Shenzhen Guangdong China
| |
Collapse
|
47
|
Yu K, Yang Z, Liu C, Wu S, Hong X, Zhao X, Ding H. Total Syntheses of Rhodomolleins XX and XXII: A Reductive Epoxide‐Opening/Beckwith–Dowd Approach. Angew Chem Int Ed Engl 2019. [DOI: 10.1002/ange.201903349] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
Affiliation(s)
- Kuan Yu
- Department of ChemistryZhejiang University Hangzhou 310058 China
| | - Zhen‐Ning Yang
- Department of ChemistryZhejiang University Hangzhou 310058 China
| | - Chun‐Hui Liu
- Department of ChemistryZhejiang University Hangzhou 310058 China
| | - Shao‐Qi Wu
- Department of ChemistryZhejiang University Hangzhou 310058 China
| | - Xin Hong
- Department of ChemistryZhejiang University Hangzhou 310058 China
| | - Xiao‐Li Zhao
- Shanghai Key Laboratory of Green Chemistry and Chemical ProcessesDepartment of ChemistryEast China Normal University Shanghai 200062 China
| | - Hanfeng Ding
- Department of ChemistryZhejiang University Hangzhou 310058 China
| |
Collapse
|
48
|
Chen Y, Hu J, Guo L, Zhong W, Ning C, Xu J. A Concise Total Synthesis of (−)‐Himalensine A. Angew Chem Int Ed Engl 2019. [DOI: 10.1002/ange.201902908] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/06/2023]
Affiliation(s)
- Yuye Chen
- Department of Chemistry and Shenzhen Grubbs InstituteSouthern University of Science and Technology Shenzhen Guangdong China
- State Key Laboratory of Quality Research in Chinese MedicineInstitute of Chinese Medical SciencesUniversity of Macau China
| | - Jingping Hu
- Department of Chemistry and Shenzhen Grubbs InstituteSouthern University of Science and Technology Shenzhen Guangdong China
- School of Chemistry and Chemical EngineeringHarbin Institute of Technology Harbin Heilongjiang China
| | - Lian‐Dong Guo
- Department of Chemistry and Shenzhen Grubbs InstituteSouthern University of Science and Technology Shenzhen Guangdong China
| | - Weihe Zhong
- Department of Chemistry and Shenzhen Grubbs InstituteSouthern University of Science and Technology Shenzhen Guangdong China
| | - Chengqing Ning
- Department of Chemistry and Shenzhen Grubbs InstituteSouthern University of Science and Technology Shenzhen Guangdong China
- SUSTech Academy for Advanced Interdisciplinary Studies Shenzhen Guangdong China
| | - Jing Xu
- Department of Chemistry and Shenzhen Grubbs InstituteSouthern University of Science and Technology Shenzhen Guangdong China
| |
Collapse
|
49
|
Xie S, Chen G, Yan H, Hou J, He Y, Zhao T, Xu J. 13-Step Total Synthesis of Atropurpuran. J Am Chem Soc 2019; 141:3435-3439. [DOI: 10.1021/jacs.9b00391] [Citation(s) in RCA: 27] [Impact Index Per Article: 5.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
Affiliation(s)
- Shengling Xie
- Department of Chemistry and Shenzhen Grubbs Institute, Southern University of Science and Technology, Shenzhen, Guangdong 518055, China
| | - Gui Chen
- Department of Chemistry and Shenzhen Grubbs Institute, Southern University of Science and Technology, Shenzhen, Guangdong 518055, China
| | - Hao Yan
- Department of Chemistry and Shenzhen Grubbs Institute, Southern University of Science and Technology, Shenzhen, Guangdong 518055, China
| | - Jieping Hou
- Department of Chemistry and Shenzhen Grubbs Institute, Southern University of Science and Technology, Shenzhen, Guangdong 518055, China
| | - Yongping He
- Department of Chemistry and Shenzhen Grubbs Institute, Southern University of Science and Technology, Shenzhen, Guangdong 518055, China
| | - Tongyun Zhao
- Department of Chemistry and Shenzhen Grubbs Institute, Southern University of Science and Technology, Shenzhen, Guangdong 518055, China
| | - Jing Xu
- Department of Chemistry and Shenzhen Grubbs Institute, Southern University of Science and Technology, Shenzhen, Guangdong 518055, China
| |
Collapse
|
50
|
Zhou RJ, Dai GY, Zhou XH, Zhang MJ, Wu PZ, Zhang D, Song H, Liu XY, Qin Y. Progress towards the synthesis of aconitine: construction of the AE fragment and attempts to access the pentacyclic core. Org Chem Front 2019. [DOI: 10.1039/c8qo01228h] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
We reported the first successful preparation of fully functionalized aconitine AE fragment and attempts to access the pentacyclic skeleton of aconitine via radical cascade.
Collapse
Affiliation(s)
- Rui-Jie Zhou
- Key Laboratory of Drug Targeting and Drug Delivery Systems of the Ministry of Education
- Sichuan Research Center of Precision Engineering Technology for Small Molecule Drugs
- West China School of Pharmacy
- Sichuan University
- Chengdu 610041
| | - Gui-Ying Dai
- Key Laboratory of Drug Targeting and Drug Delivery Systems of the Ministry of Education
- Sichuan Research Center of Precision Engineering Technology for Small Molecule Drugs
- West China School of Pharmacy
- Sichuan University
- Chengdu 610041
| | - Xiao-Han Zhou
- Key Laboratory of Drug Targeting and Drug Delivery Systems of the Ministry of Education
- Sichuan Research Center of Precision Engineering Technology for Small Molecule Drugs
- West China School of Pharmacy
- Sichuan University
- Chengdu 610041
| | - Min-Jie Zhang
- Key Laboratory of Drug Targeting and Drug Delivery Systems of the Ministry of Education
- Sichuan Research Center of Precision Engineering Technology for Small Molecule Drugs
- West China School of Pharmacy
- Sichuan University
- Chengdu 610041
| | - Ping-Zhou Wu
- Key Laboratory of Drug Targeting and Drug Delivery Systems of the Ministry of Education
- Sichuan Research Center of Precision Engineering Technology for Small Molecule Drugs
- West China School of Pharmacy
- Sichuan University
- Chengdu 610041
| | - Dan Zhang
- Key Laboratory of Drug Targeting and Drug Delivery Systems of the Ministry of Education
- Sichuan Research Center of Precision Engineering Technology for Small Molecule Drugs
- West China School of Pharmacy
- Sichuan University
- Chengdu 610041
| | - Hao Song
- Key Laboratory of Drug Targeting and Drug Delivery Systems of the Ministry of Education
- Sichuan Research Center of Precision Engineering Technology for Small Molecule Drugs
- West China School of Pharmacy
- Sichuan University
- Chengdu 610041
| | - Xiao-Yu Liu
- Key Laboratory of Drug Targeting and Drug Delivery Systems of the Ministry of Education
- Sichuan Research Center of Precision Engineering Technology for Small Molecule Drugs
- West China School of Pharmacy
- Sichuan University
- Chengdu 610041
| | - Yong Qin
- Key Laboratory of Drug Targeting and Drug Delivery Systems of the Ministry of Education
- Sichuan Research Center of Precision Engineering Technology for Small Molecule Drugs
- West China School of Pharmacy
- Sichuan University
- Chengdu 610041
| |
Collapse
|