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Zhang Y, Chen Y, Song M, Tan B, Jiang Y, Yan C, Jiang Y, Hu X, Zhang C, Chen W, Xu J. Total Syntheses of Calyciphylline A-Type Alkaloids (-)-10-Deoxydaphnipaxianine A, (+)-Daphlongamine E and (+)-Calyciphylline R via Late-Stage Divinyl Carbinol Rearrangements. J Am Chem Soc 2022; 144:16042-16051. [PMID: 36007885 DOI: 10.1021/jacs.2c05957] [Citation(s) in RCA: 14] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/13/2023]
Abstract
Among the famous Daphniphyllum alkaloids family, the calyciphylline A-type subfamily has triggered particular interest from the organic synthesis community in recent years. Here, we report divergent total syntheses of three calyciphylline A-type alkaloids, namely, (-)-10-deoxydaphnipaxianine A, (+)-daphlongamine E, and (+)-calyciphylline R. Our work highlights an efficient, divergent strategy via late-stage divinyl carbinol rearrangements, including an unprecedented oxidative Nazarov electrocyclization using an unfunctionalized tertiary divinyl carbinol and an unusual allylic alcohol rearrangement. A highly efficient "donor-acceptor" platinum catalyst was used for a critical nitrile hydration step. Moreover, the power of selective amide reductions has also been showcased by novel and classic tactics.
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Affiliation(s)
- Yan Zhang
- Department of Chemistry and Shenzhen Grubbs Institute and Guangdong Provincial Key Laboratory of Catalysis and Shenzhen Key Laboratory of Small Molecule Drug Discovery and Synthesis, Southern University of Science and Technology, Shenzhen 518055, China
| | - Yuye Chen
- Department of Chemistry and Shenzhen Grubbs Institute and Guangdong Provincial Key Laboratory of Catalysis and Shenzhen Key Laboratory of Small Molecule Drug Discovery and Synthesis, Southern University of Science and Technology, Shenzhen 518055, China
| | - Manrong Song
- Department of Chemistry and Shenzhen Grubbs Institute and Guangdong Provincial Key Laboratory of Catalysis and Shenzhen Key Laboratory of Small Molecule Drug Discovery and Synthesis, Southern University of Science and Technology, Shenzhen 518055, China
| | - Bin Tan
- Department of Chemistry and Shenzhen Grubbs Institute and Guangdong Provincial Key Laboratory of Catalysis and Shenzhen Key Laboratory of Small Molecule Drug Discovery and Synthesis, Southern University of Science and Technology, Shenzhen 518055, China
| | - Yujia Jiang
- Department of Chemistry and Shenzhen Grubbs Institute and Guangdong Provincial Key Laboratory of Catalysis and Shenzhen Key Laboratory of Small Molecule Drug Discovery and Synthesis, Southern University of Science and Technology, Shenzhen 518055, China
| | - Chongyuan Yan
- Department of Chemistry and Shenzhen Grubbs Institute and Guangdong Provincial Key Laboratory of Catalysis and Shenzhen Key Laboratory of Small Molecule Drug Discovery and Synthesis, Southern University of Science and Technology, Shenzhen 518055, China
| | - Yuyang Jiang
- Department of Chemistry and Shenzhen Grubbs Institute and Guangdong Provincial Key Laboratory of Catalysis and Shenzhen Key Laboratory of Small Molecule Drug Discovery and Synthesis, Southern University of Science and Technology, Shenzhen 518055, China
| | - Xinyue Hu
- Department of Chemistry and Shenzhen Grubbs Institute and Guangdong Provincial Key Laboratory of Catalysis and Shenzhen Key Laboratory of Small Molecule Drug Discovery and Synthesis, Southern University of Science and Technology, Shenzhen 518055, China
| | - Chengqian Zhang
- Department of Chemistry and Shenzhen Grubbs Institute and Guangdong Provincial Key Laboratory of Catalysis and Shenzhen Key Laboratory of Small Molecule Drug Discovery and Synthesis, Southern University of Science and Technology, Shenzhen 518055, China
| | - Wenqing Chen
- Department of Chemistry and Shenzhen Grubbs Institute and Guangdong Provincial Key Laboratory of Catalysis and Shenzhen Key Laboratory of Small Molecule Drug Discovery and Synthesis, Southern University of Science and Technology, Shenzhen 518055, China
| | - Jing Xu
- Department of Chemistry and Shenzhen Grubbs Institute and Guangdong Provincial Key Laboratory of Catalysis and Shenzhen Key Laboratory of Small Molecule Drug Discovery and Synthesis, Southern University of Science and Technology, Shenzhen 518055, China
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Abstract
The triterpenoids Daphniphyllum alkaloids share the unique fused hexacyclic ring framework are isolated from the genus Daphniphyllum. These natural products possess comprehensive biological activities and exhibit excellent potential medicinal appliment. This review covers the reported isolation studies and biological activities of Daphniphyllum alkaloids spanning the period from 1966 to the beginning of 2020, In the meantime, the total synthesis of Daphniphyllum alkaloids will be emphatically summarized for supplement over this review series.
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Shen SM, Li H, Wang JR, Zeng YB, Guo YW. Further new complex daphniphyllum alkaloids from the stems and leaves of Daphniphyllum calycinum: Structure and stereochemistry. Tetrahedron 2020. [DOI: 10.1016/j.tet.2020.131616] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
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Hugelshofer CL, Palani V, Sarpong R. Calyciphylline B-type Alkaloids: Evolution of a Synthetic Strategy to (−)-Daphlongamine H. J Org Chem 2019; 84:14069-14091. [DOI: 10.1021/acs.joc.9b02223] [Citation(s) in RCA: 25] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Cedric L. Hugelshofer
- Department of Chemistry, University of California Berkeley, Berkeley, California 94720, United States
| | - Vignesh Palani
- Department of Chemistry, University of California Berkeley, Berkeley, California 94720, United States
| | - Richmond Sarpong
- Department of Chemistry, University of California Berkeley, Berkeley, California 94720, United States
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Hugelshofer CL, Palani V, Sarpong R. Calyciphylline B-Type Alkaloids: Total Syntheses of (-)-Daphlongamine H and (-)-Isodaphlongamine H. J Am Chem Soc 2019; 141:8431-8435. [PMID: 31074980 DOI: 10.1021/jacs.9b03576] [Citation(s) in RCA: 40] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/13/2023]
Abstract
The first total synthesis of the complex hexacylic Daphniphyllum alkaloid (-)-daphlongamine H has been accomplished. Key to the success of the strategy are a complexity-building Mannich reaction, efficient cyclizations, and a highly diastereoselective hydrogenation to assemble multigram quantities of the tricyclic core bearing four contiguous stereocenters. Following construction of the hydro-indene substructure by means of a Pauson-Khand reaction, endgame redox manipulations delivered the natural product. Importantly, the synthetic studies have also given access to (-)-isodaphlongamine H and led to a revision of the reported structure of deoxyisocalyciphylline B.
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Affiliation(s)
- Cedric L Hugelshofer
- Department of Chemistry , University of California , Berkeley , California 94720 , United States
| | - Vignesh Palani
- Department of Chemistry , University of California , Berkeley , California 94720 , United States
| | - Richmond Sarpong
- Department of Chemistry , University of California , Berkeley , California 94720 , United States
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Shen YM, Chen DZ. An Explorer of Chemical Biology of Plant Natural Products in Southwest China, Xiaojiang Hao. NATURAL PRODUCTS AND BIOPROSPECTING 2018; 8:217-226. [PMID: 30032475 PMCID: PMC6102171 DOI: 10.1007/s13659-018-0184-8] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/09/2018] [Accepted: 07/09/2018] [Indexed: 05/02/2023]
Abstract
Xiaojiang Hao, who obtained Master Degree from Kunming Institute of Botany (KIB), Chinese Academy of Sciences (CAS) in 1985, and Doctor in Pharmacy degree in Pharmacy from Institute for Chemical Research, Kyoto University, in 1990, was born in Chongqing in July, 1951. In 1991, he returned to KIB, CAS, as an Associate professor and served as the chair of the Department of Phytochemistry. In 1994, he was promoted to a full professor at the current institute. He served as the Deputy Director of KIB and the Director of Open Laboratory of Phytochemistry from 1995 to 1997, and the Director of KIB from 1997 to 2005. Professor Hao has published more than 450 peer-reviewed SCI papers, which have been cited over 6000 times. He has obtained one PCT patent and 23 patents in China. Due to his tremendous efforts, one candidate drug, phenchlobenpyrrone, has entered the Phase II clinical trail for the treatment of Alzheimer's disease. Moreover, he won the First Prize of Natural Sciences in Yunnan Province for three times, and Ho Leung Ho Lee Fund Science and Technology Innovation Award in 2017.
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Affiliation(s)
- Yue-Mao Shen
- School of Pharmaceutical Sciences, Shandong University, Jinan, 250012, People's Republic of China.
- State Key Laboratory of Functions and Applications of Medicinal Plants, Academic City, No. 3491 Platina Way, Hi-tech Zone, Guiyang, Guizhou, 550014, People's Republic of China.
| | - Duo-Zhi Chen
- State Key Laboratory of Phytochemistry and Plant Resources in West China, Kunming Institute of Botany, Chinese Academy of Sciences, Kunming, 650201, People's Republic of China
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Chattopadhyay AK, Hanessian S. Recent Progress in the Chemistry of Daphniphyllum Alkaloids †. Chem Rev 2017; 117:4104-4146. [PMID: 28205435 DOI: 10.1021/acs.chemrev.6b00412] [Citation(s) in RCA: 112] [Impact Index Per Article: 16.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
Abstract
Daphniphyllum is an evergreen species known since 1826. After initial systematic investigations, more than 320 members of this family have been isolated, which comprise complex and fascinating structures. Unique azapolycyclic architectures containing one or more quaternary stereocenters render these alkaloids synthetically challenging. This review covers efforts toward the synthesis of Daphniphyllum alkaloids spanning the period from 2005 to the beginning of 2016, including reported biological activities as well as the isolation of new members of this genus.
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Affiliation(s)
- Amit Kumar Chattopadhyay
- Department of Chemistry, Université de Montréal , Post Office Box 6128, Station Centre Ville, Montreal, Quebec H3C 3J7, Canada
| | - Stephen Hanessian
- Department of Chemistry, Université de Montréal , Post Office Box 6128, Station Centre Ville, Montreal, Quebec H3C 3J7, Canada
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Chattopadhyay AK, Berger G, Hanessian S. Strategies toward the Total Synthesis of Calyciphylline B-type Alkaloids: A Computational Perspective Aided by DFT Analysis. J Org Chem 2016; 81:5074-86. [PMID: 27251014 DOI: 10.1021/acs.joc.6b00638] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
Herein we describe synthetic efforts toward the total synthesis of calyciphylline B-type alkaloids. In the process, we disclose a detailed DFT study of equilibrium geometries and transition states that explains the stereochemical outcome during the formation of critical intermediates. X-ray crystallographic analysis reveals interesting conformational features in the naturally occurring deoxycalyciphylline B and its synthetic congeners.
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Affiliation(s)
- Amit Kumar Chattopadhyay
- Department of Chemistry, Université de Montréal , Station Centre Ville, C.P. 6128, Montreal, Quebec H3C 3J7, Canada
| | - Gilles Berger
- Laboratoire de Chimie Pharmaceutique Organique, Campus Plaine CP205/5, Université Libre de Bruxelles , Boulevard du Triomphe, 1050 Brussels, Belgium
| | - Stephen Hanessian
- Department of Chemistry, Université de Montréal , Station Centre Ville, C.P. 6128, Montreal, Quebec H3C 3J7, Canada
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Chattopadhyay AK, Ly VL, Jakkepally S, Berger G, Hanessian S. Total Synthesis of Isodaphlongamine H: A Possible Biogenetic Conundrum. Angew Chem Int Ed Engl 2016; 55:2577-81. [DOI: 10.1002/anie.201510861] [Citation(s) in RCA: 55] [Impact Index Per Article: 6.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/23/2015] [Indexed: 11/08/2022]
Affiliation(s)
- Amit Kumar Chattopadhyay
- Department of Chemistry; Université de Montréal; Station Centre Ville, C.P. 6128 Montréal Qc H3C 3J7 Canada
| | - Vu Linh Ly
- Department of Chemistry; Université de Montréal; Station Centre Ville, C.P. 6128 Montréal Qc H3C 3J7 Canada
| | - Shashidhar Jakkepally
- Department of Chemistry; Université de Montréal; Station Centre Ville, C.P. 6128 Montréal Qc H3C 3J7 Canada
| | - Gilles Berger
- Department of Chemistry; Université de Montréal; Station Centre Ville, C.P. 6128 Montréal Qc H3C 3J7 Canada
| | - Stephen Hanessian
- Department of Chemistry; Université de Montréal; Station Centre Ville, C.P. 6128 Montréal Qc H3C 3J7 Canada
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Zhang H, Zhang DD, Li JY, Shyaula SL, Li J, Yue JM. New alkaloids from Daphniphyllum himalense. RSC Adv 2016. [DOI: 10.1039/c6ra06420e] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
A series ofDaphniphyllumalkaloids with selective kinase inhibitory activity were isolated and structurally characterized fromDaphniphyllum himalense.
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Affiliation(s)
- Hua Zhang
- State Key Laboratory of Drug Research
- Shanghai Institute of Materia Medica
- Chinese Academy of Sciences
- Shanghai 201203
- P. R. China
| | - Dong-Dong Zhang
- State Key Laboratory of Drug Research
- Shanghai Institute of Materia Medica
- Chinese Academy of Sciences
- Shanghai 201203
- P. R. China
| | - Jing-Ya Li
- State Key Laboratory of Drug Research
- Shanghai Institute of Materia Medica
- Chinese Academy of Sciences
- Shanghai 201203
- P. R. China
| | | | - Jia Li
- State Key Laboratory of Drug Research
- Shanghai Institute of Materia Medica
- Chinese Academy of Sciences
- Shanghai 201203
- P. R. China
| | - Jian-Min Yue
- State Key Laboratory of Drug Research
- Shanghai Institute of Materia Medica
- Chinese Academy of Sciences
- Shanghai 201203
- P. R. China
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Zhang H, Shyaula SL, Li JY, Li J, Yue JM. Hydroxylated Daphniphyllum Alkaloids from Daphniphyllum himalense. JOURNAL OF NATURAL PRODUCTS 2015; 78:2761-2767. [PMID: 26486498 DOI: 10.1021/acs.jnatprod.5b00741] [Citation(s) in RCA: 23] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/05/2023]
Abstract
Thirteen new hydroxylated calyciphylline A-type Daphniphyllum alkaloids (1-13) were isolated from an ethanolic extract of Daphniphyllum himalense. These structures were characterized on the basis of spectroscopic data analysis, especially from their 2D NMR spectra. Oxidation at the C-3, C-9, C-11, and C-12 positions is reported for the first time for this class of compounds. Selective compounds showed low inhibitory rates against three kinase enzymes, PTP1B, aurora A, and IKK-β, at a concentration of 20 μg/mL.
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Affiliation(s)
- Hua Zhang
- State Key Laboratory of Drug Research, Shanghai Institute of Materia Medica, Chinese Academy of Sciences , 555 Zu Chong Zhi Road, Zhangjiang Hi-Tech Park, Shanghai 201203, People's Republic of China
| | - Sajan L Shyaula
- Nepal Academy of Science and Technology , Khumaltar, Lalitpur, GPO Box 3323, Kathmandu, Nepal
| | - Jing-Ya Li
- State Key Laboratory of Drug Research, Shanghai Institute of Materia Medica, Chinese Academy of Sciences , 555 Zu Chong Zhi Road, Zhangjiang Hi-Tech Park, Shanghai 201203, People's Republic of China
| | - Jia Li
- State Key Laboratory of Drug Research, Shanghai Institute of Materia Medica, Chinese Academy of Sciences , 555 Zu Chong Zhi Road, Zhangjiang Hi-Tech Park, Shanghai 201203, People's Republic of China
| | - Jian-Min Yue
- State Key Laboratory of Drug Research, Shanghai Institute of Materia Medica, Chinese Academy of Sciences , 555 Zu Chong Zhi Road, Zhangjiang Hi-Tech Park, Shanghai 201203, People's Republic of China
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Ma D, Cheng H, Huang C, Xu L. Synthesis of the azatricyclic ACD ring system of calyciphylline A-type Daphniphyllum alkaloids via a nonstabilized azomethine ylide generated by desilylation. Tetrahedron Lett 2015. [DOI: 10.1016/j.tetlet.2015.03.097] [Citation(s) in RCA: 24] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
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Guo JJ, Li Y, Cheng B, Xu T, Tao C, Yang X, Zhang D, Yan G, Zhai H. Expedient Construction of the [5-6-7] Tricyclic Core of Calyciphylline A-Type Alkaloids. Chem Asian J 2014; 10:865-8. [DOI: 10.1002/asia.201403061] [Citation(s) in RCA: 27] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/09/2014] [Indexed: 11/09/2022]
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Five new alkaloids from the stem bark of Daphniphyllum macropodum. Molecules 2014; 19:3055-67. [PMID: 24619303 PMCID: PMC6271962 DOI: 10.3390/molecules19033055] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/11/2014] [Revised: 02/25/2014] [Accepted: 02/26/2014] [Indexed: 11/17/2022] Open
Abstract
Five new alkaloids, daphnicyclidins M and N (compounds 1 and 2) and calyciphyllines Q-S (compounds 3-5), along with four known ones, paxiphylline C (6), macropodumine B (7), macropodumine C (8) and daphnicyclidin A (9) were isolated from the stem bark of Daphniphyllum macropodum. Calyciphylline Q (3) is the first calyciphylline A derivative possessing a double bond between C-18 and C-19. Their structures and relative configurations were elucidated on the basis of spectroscopic methods, especially 2D NMR techniques. Compounds 1, 2, 8 and 9 exhibited cytotoxic activity against P-388 cells with IC₅₀ values of 5.7, 6.5, 10.3 and 13.8 µM, respectively. Compounds 1 and 2 also showed cytotoxic activity against SGC-7901 cells with IC₅₀ values of 22.4 and 25.6 µM.
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Kang B, Jakubec P, Dixon DJ. Strategies towards the synthesis of calyciphylline A-type Daphniphyllum alkaloids. Nat Prod Rep 2014; 31:550-62. [PMID: 24595901 DOI: 10.1039/c3np70115h] [Citation(s) in RCA: 94] [Impact Index Per Article: 9.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
The Daphniphyllum alkaloids are a diverse family of natural products rich in number and structural diversity that have been known for many decades. However, the structurally unique subclass of calyciphylline A-type alkaloids has only recently been discovered and is relatively unexplored. Several noteworthy core syntheses and the development of a wide range of novel synthetic strategies have been achieved. This includes strategies based on intramolecular Michael addition, Pd-catalysis, cycloaddition, and Mannich-type reactions. This review will provide an overview of these synthetic studies.
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Affiliation(s)
- Baldip Kang
- The Department of Chemistry, Chemistry Research Laboratory, University of Oxford, 12 Mansfield Road, Oxford, OX1 3TA, UK.
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Zhang CR, Liu HB, Dong SH, Wu Y, Yue JM. Alkaloids from the Twigs and Leaves ofDaphniphyllum macropodum. Helv Chim Acta 2013. [DOI: 10.1002/hlca.201200255] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
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Yang M, Wang L, He ZH, Wang SH, Zhang SY, Tu YQ, Zhang FM. Tandem Semipinacol-Type 1,2-Carbon Migration/Aldol Reaction toward the Construction of [5–6–7] All-Carbon Tricyclic Core of Calyciphylline A-Type Alkaloids. Org Lett 2012; 14:5114-7. [DOI: 10.1021/ol302386g] [Citation(s) in RCA: 45] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Ming Yang
- State Key Laboratory of Applied Organic Chemistry and College of Chemistry and Chemical Engineering, Lanzhou University, Lanzhou 730000, P. R. China
| | - Lin Wang
- State Key Laboratory of Applied Organic Chemistry and College of Chemistry and Chemical Engineering, Lanzhou University, Lanzhou 730000, P. R. China
| | - Zheng-He He
- State Key Laboratory of Applied Organic Chemistry and College of Chemistry and Chemical Engineering, Lanzhou University, Lanzhou 730000, P. R. China
| | - Shao-Hua Wang
- State Key Laboratory of Applied Organic Chemistry and College of Chemistry and Chemical Engineering, Lanzhou University, Lanzhou 730000, P. R. China
| | - Shu-Yu Zhang
- State Key Laboratory of Applied Organic Chemistry and College of Chemistry and Chemical Engineering, Lanzhou University, Lanzhou 730000, P. R. China
| | - Yong-Qiang Tu
- State Key Laboratory of Applied Organic Chemistry and College of Chemistry and Chemical Engineering, Lanzhou University, Lanzhou 730000, P. R. China
| | - Fu-Min Zhang
- State Key Laboratory of Applied Organic Chemistry and College of Chemistry and Chemical Engineering, Lanzhou University, Lanzhou 730000, P. R. China
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Fang B, Zheng H, Zhao C, Jing P, Li H, Xie X, She X. Synthesis of the Tetracyclic Core (ABCE Rings) of Daphenylline. J Org Chem 2012; 77:8367-73. [DOI: 10.1021/jo301533f] [Citation(s) in RCA: 37] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Bowen Fang
- State Key Laboratory
of Applied
Organic Chemistry, College of Chemistry and Chemical Engineering, Lanzhou University, Lanzhou, Gansu, 730000, PR China
| | - Huaiji Zheng
- State Key Laboratory
of Applied
Organic Chemistry, College of Chemistry and Chemical Engineering, Lanzhou University, Lanzhou, Gansu, 730000, PR China
| | - Changgui Zhao
- State Key Laboratory
of Applied
Organic Chemistry, College of Chemistry and Chemical Engineering, Lanzhou University, Lanzhou, Gansu, 730000, PR China
| | - Peng Jing
- State Key Laboratory
of Applied
Organic Chemistry, College of Chemistry and Chemical Engineering, Lanzhou University, Lanzhou, Gansu, 730000, PR China
| | - Huilin Li
- State Key Laboratory
of Applied
Organic Chemistry, College of Chemistry and Chemical Engineering, Lanzhou University, Lanzhou, Gansu, 730000, PR China
| | - Xingang Xie
- State Key Laboratory
of Applied
Organic Chemistry, College of Chemistry and Chemical Engineering, Lanzhou University, Lanzhou, Gansu, 730000, PR China
| | - Xuegong She
- State Key Laboratory
of Applied
Organic Chemistry, College of Chemistry and Chemical Engineering, Lanzhou University, Lanzhou, Gansu, 730000, PR China
- State Key Laboratory for Oxo
Synthesis and Selective Oxidation, Lanzhou Institute of Chemical Physics, Chinese Academy of Sciences, Lanzhou, Gansu, 730000,
PR China
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Darses B, Michaelides IN, Sladojevich F, Ward JW, Rzepa PR, Dixon DJ. Expedient Construction of the [7–5–5] All-Carbon Tricyclic Core of the Daphniphyllum Alkaloids Daphnilongeranin B and Daphniyunnine D. Org Lett 2012; 14:1684-7. [DOI: 10.1021/ol3002267] [Citation(s) in RCA: 61] [Impact Index Per Article: 5.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Benjamin Darses
- Chemistry Research Laboratory, Department of Chemistry, University of Oxford, Mansfield Road, Oxford, OX1 3TA, U.K., Department of Chemistry, University of Manchester, Oxford Road, Manchester, M13 9PL, U.K., and Syngenta, Jealott’s Hill International Research Centre Bracknell, Berkshire RG42 6EY, U.K
| | - Iacovos N. Michaelides
- Chemistry Research Laboratory, Department of Chemistry, University of Oxford, Mansfield Road, Oxford, OX1 3TA, U.K., Department of Chemistry, University of Manchester, Oxford Road, Manchester, M13 9PL, U.K., and Syngenta, Jealott’s Hill International Research Centre Bracknell, Berkshire RG42 6EY, U.K
| | - Filippo Sladojevich
- Chemistry Research Laboratory, Department of Chemistry, University of Oxford, Mansfield Road, Oxford, OX1 3TA, U.K., Department of Chemistry, University of Manchester, Oxford Road, Manchester, M13 9PL, U.K., and Syngenta, Jealott’s Hill International Research Centre Bracknell, Berkshire RG42 6EY, U.K
| | - John W. Ward
- Chemistry Research Laboratory, Department of Chemistry, University of Oxford, Mansfield Road, Oxford, OX1 3TA, U.K., Department of Chemistry, University of Manchester, Oxford Road, Manchester, M13 9PL, U.K., and Syngenta, Jealott’s Hill International Research Centre Bracknell, Berkshire RG42 6EY, U.K
| | - Paula R. Rzepa
- Chemistry Research Laboratory, Department of Chemistry, University of Oxford, Mansfield Road, Oxford, OX1 3TA, U.K., Department of Chemistry, University of Manchester, Oxford Road, Manchester, M13 9PL, U.K., and Syngenta, Jealott’s Hill International Research Centre Bracknell, Berkshire RG42 6EY, U.K
| | - Darren J. Dixon
- Chemistry Research Laboratory, Department of Chemistry, University of Oxford, Mansfield Road, Oxford, OX1 3TA, U.K., Department of Chemistry, University of Manchester, Oxford Road, Manchester, M13 9PL, U.K., and Syngenta, Jealott’s Hill International Research Centre Bracknell, Berkshire RG42 6EY, U.K
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Zhang Y, Di YT, Zhang Q, Mu SZ, Tan CJ, Fang X, He HP, Li SL, Hao XJ. Daphhimalenine A, a new alkaloid with an unprecedented skeleton, from Daphniphyllum himalense. Org Lett 2010; 11:5414-7. [PMID: 19904981 DOI: 10.1021/ol902262g] [Citation(s) in RCA: 34] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
Daphhimalenine A (1), a novel alkaloid with a rearrangement C-21 skeleton, containing a unique 1-azabicyclo[5.2.1]decane ring system, was isolated from the leaves of Daphniphyllum himalense, along with biogenetically related alkaloids daphhimalenine B (2) and daphnezomine T. Their structures were established on the basis of spectroscopic data, and the absolute configuration of 1 was assigned by computational methods. A plausible biosynthetic pathway of 1 was also proposed.
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Affiliation(s)
- Yu Zhang
- State Key Laboratory of Phytochemistry and Plant Resources in West China, Kunming Institute of Botany, Chinese Academy of Sciences, Kunming 650204, Yunnan, PR China
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Zhang CR, Liu HB, Feng T, Zhu JY, Geng MY, Yue JM. Alkaloids from the leaves of Daphniphyllum subverticillatum. JOURNAL OF NATURAL PRODUCTS 2009; 72:1669-1672. [PMID: 19739650 DOI: 10.1021/np9003799] [Citation(s) in RCA: 21] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/28/2023]
Abstract
Four new alkaloids, 17-hydroxydaphnigraciline (1), subdaphnidine A (2), daphnezomine L methyl ester (3), and 11-hydroxycodaphniphylline (4), along with 24 known analogues, were isolated from the leaves of Daphniphyllum subverticillatum. The structures of 1-4 were elucidated on the basis of spectroscopic methods and from chemical evidence. Daphnilongeridine (5) showed cytotoxicity against several tumor cell lines at IC(50) values in the range 2.4-9.7 microM and against the HMEC human microvascular endothelial cell line with an IC(50) of 2.7 microM.
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Affiliation(s)
- Chuan-Rui Zhang
- State Key Laboratory of Drug Research, Shanghai Institute of Materia Medica, Shanghai Institutes for Biological Sciences, Chinese Academy of Sciences, 555 Zu Chong Zhi Road, Zhangjiang Hi-Tech Park, Shanghai, People's Republic of China
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