1
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Zhou ZS, Zhao YL, Hu BY, Wang B, Liu YP, Zhu YY, He YJ, Wang ZJ, Dai Z, Zhao LX, Luo XD. Steroidal alkaloid with unprecedented triheterocyclic architecture. Chem Commun (Camb) 2023; 59:326-329. [PMID: 36511292 DOI: 10.1039/d2cc06073f] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Abstract
Veratrazine A (1), a steroidal alkaloid with a unique 6/5/5 triheterocyclic scaffold as the side chain, was isolated from Veratrum stenophyllum, and its structure was established via spectroscopic analyses and X-ray diffraction. A plausible biosynthetic pathway for 1 is proposed. Bioassy exhibits moderate anti-inflammatory activities in vitro and in vivo.
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Affiliation(s)
- Zhong-Shun Zhou
- Key Laboratory of Medicinal Chemistry for Natural Resource, Ministry of Education and Yunnan Province, Yunnan Characteristic Plant Extraction Laboratory, School of Chemical Science and Technology, Yunnan University, Kunming, 650500, P. R. China.
| | - Yun-Li Zhao
- Key Laboratory of Medicinal Chemistry for Natural Resource, Ministry of Education and Yunnan Province, Yunnan Characteristic Plant Extraction Laboratory, School of Chemical Science and Technology, Yunnan University, Kunming, 650500, P. R. China.
| | - Bin-Yuan Hu
- Key Laboratory of Medicinal Chemistry for Natural Resource, Ministry of Education and Yunnan Province, Yunnan Characteristic Plant Extraction Laboratory, School of Chemical Science and Technology, Yunnan University, Kunming, 650500, P. R. China.
| | - Bei Wang
- Key Laboratory of Herbal-Tebitan Drug Screening and Deep Processing of Gansu Province, School of Life Science and Engineering, Lanzhou University of Technology, Lanzhou 730050, P. R. China
| | - Ya-Ping Liu
- State Key Laboratory of Phytochemistry and Plant Resources in West China, Kunming Institute of Botany, Chinese Academy of Sciences, Kunming, 650201, P. R. China
| | - Yan-Yan Zhu
- Key Laboratory of Medicinal Chemistry for Natural Resource, Ministry of Education and Yunnan Province, Yunnan Characteristic Plant Extraction Laboratory, School of Chemical Science and Technology, Yunnan University, Kunming, 650500, P. R. China.
| | - Ying-Jie He
- Key Laboratory of Medicinal Chemistry for Natural Resource, Ministry of Education and Yunnan Province, Yunnan Characteristic Plant Extraction Laboratory, School of Chemical Science and Technology, Yunnan University, Kunming, 650500, P. R. China.
| | - Zhao-Jie Wang
- Key Laboratory of Medicinal Chemistry for Natural Resource, Ministry of Education and Yunnan Province, Yunnan Characteristic Plant Extraction Laboratory, School of Chemical Science and Technology, Yunnan University, Kunming, 650500, P. R. China.
| | - Zhi Dai
- Key Laboratory of Medicinal Chemistry for Natural Resource, Ministry of Education and Yunnan Province, Yunnan Characteristic Plant Extraction Laboratory, School of Chemical Science and Technology, Yunnan University, Kunming, 650500, P. R. China.
| | - Li-Xing Zhao
- Key Laboratory of Medicinal Chemistry for Natural Resource, Ministry of Education and Yunnan Province, Yunnan Characteristic Plant Extraction Laboratory, School of Chemical Science and Technology, Yunnan University, Kunming, 650500, P. R. China.
| | - Xiao-Dong Luo
- Key Laboratory of Medicinal Chemistry for Natural Resource, Ministry of Education and Yunnan Province, Yunnan Characteristic Plant Extraction Laboratory, School of Chemical Science and Technology, Yunnan University, Kunming, 650500, P. R. China. .,State Key Laboratory of Phytochemistry and Plant Resources in West China, Kunming Institute of Botany, Chinese Academy of Sciences, Kunming, 650201, P. R. China
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2
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Zhu LC, Yang DL, Shi Y. Synthesis of 5α,6-Dihydroveragranines A and B. Org Lett 2022; 24:5825-5828. [PMID: 35920688 DOI: 10.1021/acs.orglett.2c02367] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
The 5α,6-dihydro congeners of veragranines A and B, two steroidal alkaloids with an unprecedented hexacyclic skeleton and potent analgesic effects, were synthesized from hecogenin acetate within six steps. This work enables quick access to the hexacyclic skeleton and is amendable to prepare other D-ring-modified congeners.
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Affiliation(s)
- Liang-Chao Zhu
- School of Chemical Science and Technology, Yunnan University, Kunming 650091, China
| | - Dong-Li Yang
- School of Chemical Science and Technology, Yunnan University, Kunming 650091, China
| | - Yong Shi
- School of Chemical Science and Technology, Yunnan University, Kunming 650091, China
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3
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Synthesis of Demissidine Analogues from Tigogenin via Imine Intermediates. Int J Mol Sci 2021; 22:ijms221910879. [PMID: 34639219 PMCID: PMC8509427 DOI: 10.3390/ijms221910879] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/18/2021] [Revised: 09/30/2021] [Accepted: 10/05/2021] [Indexed: 11/16/2022] Open
Abstract
A five-step transformation of a spiroketal side chain of tigogenin into an indolizidine system present in solanidane alkaloids such as demissidine and solanidine was elaborated. The key intermediate in the synthesis was spiroimine 3 readily obtained from tigogenin by its RuO4 oxidation to 5,6-dihydrokryptogenin followed by amination with aluminum amide generated in situ from DIBAlH and ammonium chloride. The mild reduction of spiroimine to a 26-hydroxy-dihydropyrrole derivative and subsequent mesylation resulted in the formation of 25-epidemissidinium salt or 23-sulfone depending on reaction conditions.
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4
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Xie TZ, Luo L, Zhao YL, Li H, Xiang ML, Qin XJ, He YJ, Zhu YY, Dai Z, Wang ZJ, Wei X, Liu YP, Zhao LX, Lai R, Luo XD. Steroidal Alkaloids with a Potent Analgesic Effect Based on N-type Calcium Channel Inhibition. Org Lett 2021; 24:467-471. [PMID: 34477387 DOI: 10.1021/acs.orglett.1c02853] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/14/2023]
Abstract
Two distinctive alkaloids with 6/6/6/5/6/6 fused rings, in which a previously unidentified linkage of C-12/23 generates a rigid skeleton, resulting in a new subtype of steroidal alkaloid, were isolated from Veratrum grandiflorum. Compounds 1 and 2 showed potent analgesic effects in vivo, superior to the well-known analgesic, pethidine (Dolantin), likely by inhibiting CaV2.2 voltage-gated calcium channels.
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Affiliation(s)
- Tian-Zhen Xie
- Key Laboratory of Medicinal Chemistry for Natural Resource, Ministry of Education and Yunnan Province, School of Chemical Science and Technology, Yunnan University, Kunming 650091, P. R. China
| | - Lei Luo
- Key Laboratory of Animal Models and Human Disease Mechanisms of Chinese Academy of Sciences/Key Laboratory of Bioactive Peptides of Yunnan Province, Kunming Institute of Zoology, Kunming 650223, P. R. China
| | - Yun-Li Zhao
- Key Laboratory of Medicinal Chemistry for Natural Resource, Ministry of Education and Yunnan Province, School of Chemical Science and Technology, Yunnan University, Kunming 650091, P. R. China
| | - Hao Li
- Key Laboratory of Animal Models and Human Disease Mechanisms of Chinese Academy of Sciences/Key Laboratory of Bioactive Peptides of Yunnan Province, Kunming Institute of Zoology, Kunming 650223, P. R. China
| | - Mei-Ling Xiang
- Key Laboratory of Medicinal Chemistry for Natural Resource, Ministry of Education and Yunnan Province, School of Chemical Science and Technology, Yunnan University, Kunming 650091, P. R. China
| | - Xu-Jie Qin
- State Key Laboratory of Phytochemistry and Plant Resources in West China, Kunming Institute of Botany, Chinese Academy of Sciences, Kunming 650201, P. R. China
| | - Ying-Jie He
- Key Laboratory of Medicinal Chemistry for Natural Resource, Ministry of Education and Yunnan Province, School of Chemical Science and Technology, Yunnan University, Kunming 650091, P. R. China
| | - Yan-Yan Zhu
- Key Laboratory of Medicinal Chemistry for Natural Resource, Ministry of Education and Yunnan Province, School of Chemical Science and Technology, Yunnan University, Kunming 650091, P. R. China
| | - Zhi Dai
- Key Laboratory of Medicinal Chemistry for Natural Resource, Ministry of Education and Yunnan Province, School of Chemical Science and Technology, Yunnan University, Kunming 650091, P. R. China
| | - Zhao-Jie Wang
- Key Laboratory of Medicinal Chemistry for Natural Resource, Ministry of Education and Yunnan Province, School of Chemical Science and Technology, Yunnan University, Kunming 650091, P. R. China
| | - Xin Wei
- State Key Laboratory of Phytochemistry and Plant Resources in West China, Kunming Institute of Botany, Chinese Academy of Sciences, Kunming 650201, P. R. China
| | - Ya-Ping Liu
- State Key Laboratory of Phytochemistry and Plant Resources in West China, Kunming Institute of Botany, Chinese Academy of Sciences, Kunming 650201, P. R. China
| | - Li-Xing Zhao
- Key Laboratory of Medicinal Chemistry for Natural Resource, Ministry of Education and Yunnan Province, School of Chemical Science and Technology, Yunnan University, Kunming 650091, P. R. China
| | - Ren Lai
- Key Laboratory of Animal Models and Human Disease Mechanisms of Chinese Academy of Sciences/Key Laboratory of Bioactive Peptides of Yunnan Province, Kunming Institute of Zoology, Kunming 650223, P. R. China
| | - Xiao-Dong Luo
- Key Laboratory of Medicinal Chemistry for Natural Resource, Ministry of Education and Yunnan Province, School of Chemical Science and Technology, Yunnan University, Kunming 650091, P. R. China.,State Key Laboratory of Phytochemistry and Plant Resources in West China, Kunming Institute of Botany, Chinese Academy of Sciences, Kunming 650201, P. R. China
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5
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Rivas-Loaiza JA, Baj A, López Y, Witkowski S, Wojtkielewicz A, Morzycki JW. Synthesis of Solanum Alkaloid Demissidine Stereoisomers and Analogues. J Org Chem 2021; 86:1575-1582. [PMID: 33393776 DOI: 10.1021/acs.joc.0c02410] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
Demissidine is an indolizidine alkaloid isolated from several potato species. A simple synthesis of demissidine stereoisomers and analogues from a common steroidal sapogenin tigogenin is presented in the paper. The key intermediate in the synthesis of these compounds is readily available tigogenoic acid. Its step-by-step transformation to indolizidine yielded 20R,25R or 20R,25S products while the direct reductive amination produced the 20S,25R compound (25-epi-demissidine).
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Affiliation(s)
- Juan A Rivas-Loaiza
- Faculty of Chemistry, University of Białystok, Ciołkowskiego 1K, 15-245 Białystok, Poland
| | - Aneta Baj
- Faculty of Chemistry, University of Białystok, Ciołkowskiego 1K, 15-245 Białystok, Poland
| | - Yliana López
- Instituto de Investigaciones Químico Biológicas, Universidad Michoacana de San Nicolás de Hidalgo, Morelia, Michoacán 58030, Mexico
| | - Stanisław Witkowski
- Faculty of Chemistry, University of Białystok, Ciołkowskiego 1K, 15-245 Białystok, Poland
| | | | - Jacek W Morzycki
- Faculty of Chemistry, University of Białystok, Ciołkowskiego 1K, 15-245 Białystok, Poland
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6
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Wang Y, Huang G, Shi Y, Tian WS, Zhuang C, Chen FE. Asymmetric synthesis of (-)-solanidine and (-)-tomatidenol. Org Biomol Chem 2020; 18:3169-3176. [PMID: 32270168 DOI: 10.1039/d0ob00457j] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
A concise asymmetric synthesis of two naturally occurring seco-type cholestane alkaloids (-)-solanidine and (-)-tomatidenol from (-)-diosgenin with a linear reaction sequence of 12 steps and 13 steps, respectively, is reported. The synthetic strategy includes the highly controlled establishment of highly functionalized octahydroindolizine ((-)-solanidine) and 1-oxa-6-azaspiro[4.5]decane ((-)-tomatidenol) cores with five stereocenters, respectively, from (-)-diosgenin, featuring two stereoselective cascade transformations including a modified cascade ring-switching process of furostan-26-acid to open the E-ring of (-)-diosgenin and a cascade azide reduction/intramolecular reductive amination to close the E- and F-rings of (-)-solanidine and (-)-tomatidenol. This work should enable further explorations of chemical and biological spaces based on solanidine, tomatidenol and related natural products.
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Affiliation(s)
- Yun Wang
- Engineering Center of Catalysis and Synthesis for Chiral Molecules, Fudan University, Shanghai 200433, China. and Shanghai Engineering Center of Industrial Asymmetric Catalysis for Chiral Drugs, Shanghai 200433, China
| | - Guanxin Huang
- Engineering Center of Catalysis and Synthesis for Chiral Molecules, Fudan University, Shanghai 200433, China.
| | - Yong Shi
- Shanghai Institute of Organic Chemistry, Chinese Academy of Sciences, 345 Lingling Road, Shanghai 200032, China
| | - Wei-Sheng Tian
- Shanghai Institute of Organic Chemistry, Chinese Academy of Sciences, 345 Lingling Road, Shanghai 200032, China
| | - Chunlin Zhuang
- Engineering Center of Catalysis and Synthesis for Chiral Molecules, Fudan University, Shanghai 200433, China. and Shanghai Engineering Center of Industrial Asymmetric Catalysis for Chiral Drugs, Shanghai 200433, China
| | - Fen-Er Chen
- Engineering Center of Catalysis and Synthesis for Chiral Molecules, Fudan University, Shanghai 200433, China. and Shanghai Engineering Center of Industrial Asymmetric Catalysis for Chiral Drugs, Shanghai 200433, China and Institute of Pharmaceutical Science and Technology, Zhejiang University of Technology, 18 Chao Wang Road, 310014, Hangzhou, China
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7
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Wang Y, Shi Y, Tian WS, Tang P, Zhuang C, Chen FE. Stereoselective Synthesis of (-)-Verazine and Congeners via a Cascade Ring-Switching Process of Furostan-26-acid. Org Lett 2020; 22:2761-2765. [PMID: 32202118 DOI: 10.1021/acs.orglett.0c00747] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/01/2023]
Abstract
An efficient synthetic strategy for three natural seco-type cholestane alkaloids isolated from the Veratrum plants, based on commercially available naturally occurring and abundant (-)-diosgenin (1), as exemplified in the concise asymmetric synthesis of (-)-verazine (4), (-)-veramiline (5) (proposed structure), and its 22-epimer, (-)-oblonginine (6), is presented. This work highlights the application of a cascade ring-switching process of (-)-diosgenin to achieve the E-ring opening and construction of chiral six-membered lactone challenges in seco-type cholestane alkaloid synthesis. This approach enables the synthesis of related natural and nature-like novel cholestane alkaloids, opening up opportunities for more extensive exploration of cholestane alkaloid biology.
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Affiliation(s)
- Yun Wang
- Engineering Center of Catalysis and Synthesis for Chiral Molecules, Fudan University, Shanghai 200433, China.,Shanghai Engineering Center of Industrial Asymmetric Catalysis for Chiral Drugs, Shanghai 200433, China
| | - Yong Shi
- Shanghai Institute of Organic Chemistry, Chinese Academy of Sciences, 345 Lingling Road, Shanghai 200032, China
| | - Wei-Sheng Tian
- Shanghai Institute of Organic Chemistry, Chinese Academy of Sciences, 345 Lingling Road, Shanghai 200032, China
| | - Pei Tang
- West China School of Pharmacy, Sichuan University, Chengdu 610041, China
| | - Chunlin Zhuang
- Engineering Center of Catalysis and Synthesis for Chiral Molecules, Fudan University, Shanghai 200433, China.,Shanghai Engineering Center of Industrial Asymmetric Catalysis for Chiral Drugs, Shanghai 200433, China
| | - Fen-Er Chen
- Engineering Center of Catalysis and Synthesis for Chiral Molecules, Fudan University, Shanghai 200433, China.,Shanghai Engineering Center of Industrial Asymmetric Catalysis for Chiral Drugs, Shanghai 200433, China.,West China School of Pharmacy, Sichuan University, Chengdu 610041, China
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8
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Czajkowska-Szczykowska D, Corona Díaz A, Aleksiejczuk G, López Castro Y, Morzycki JW. Access to 27-Nortomatidine and 27-Norsoladulcidine Derivatives. J Org Chem 2019; 84:4104-4111. [DOI: 10.1021/acs.joc.9b00103] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
| | - Alejandro Corona Díaz
- Instituto de Investigaciones Químico Biológicas, Universidad Michoacana de San Nicolás de Hidalgo, Ed.B-1, C.U., Morelia, Michoacán 58030, Mexico
| | - Grzegorz Aleksiejczuk
- Institute of Chemistry, University of Bialystok, K. Ciołkowskiego 1 K, 15-245 Białystok, Poland
| | - Yliana López Castro
- Instituto de Investigaciones Químico Biológicas, Universidad Michoacana de San Nicolás de Hidalgo, Ed.B-1, C.U., Morelia, Michoacán 58030, Mexico
| | - Jacek W. Morzycki
- Institute of Chemistry, University of Bialystok, K. Ciołkowskiego 1 K, 15-245 Białystok, Poland
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