1
|
Zhang J, Dai H, Ding H, Fan Y, Chen H, Jing M. Concise Synthesis of (±)-Cephalotaxine. HETEROCYCLES 2023. [DOI: 10.3987/com-22-14774] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/24/2022]
|
2
|
Taber DF. Natural Product Synthesis by Intramolecular Alkylidene Carbene C−H Insertion. European J Org Chem 2022. [DOI: 10.1002/ejoc.202200032] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Affiliation(s)
- Douglass F. Taber
- Department of Chemistry and Biochemistry University of Delaware Newark DE 19716 USA
| |
Collapse
|
3
|
Liu J, Zhang J, Fan Y, Ding H, Liu T, Li S, Jiang M, Liu L. Construction of azaspirocyclic skeletons mediated by the carbonyl of the Weinreb amide: formal total synthesis of (±)-cephalotaxine. Org Biomol Chem 2022; 20:1879-1882. [PMID: 35166743 DOI: 10.1039/d1ob02304g] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
A facile Stevens rearrangement of the Weinreb amide and the subsequent key steps mediated by the carbonyl of the Weinreb amide led to the construction of azaspirocyclic skeletons of some typical alkaloids. And the formal total synthesis of (±)-cephalotaxine was completed via a shorter synthetic route by this efficient method. Further studies on the development and asymmetric synthesis application of this strategy are underway.
Collapse
Affiliation(s)
- Jianyin Liu
- School of Pharmacy, Gansu University of Chinese Medicine, Lanzhou 730000, P. R. China.
| | - Jian Zhang
- School of Pharmacy, Gansu University of Chinese Medicine, Lanzhou 730000, P. R. China. .,Key Laboratory of Chemistry and Quality for TCM of the College of Gansu Province, Lanzhou 730000, P. R. China
| | - Yuxue Fan
- School of Pharmacy, Gansu University of Chinese Medicine, Lanzhou 730000, P. R. China.
| | - Huili Ding
- School of Pharmacy, Gansu University of Chinese Medicine, Lanzhou 730000, P. R. China.
| | - Tianfu Liu
- School of Pharmacy, Gansu University of Chinese Medicine, Lanzhou 730000, P. R. China.
| | - Shanshan Li
- School of Pharmacy, Gansu University of Chinese Medicine, Lanzhou 730000, P. R. China.
| | - Minghua Jiang
- School of Pharmacy, Gansu University of Chinese Medicine, Lanzhou 730000, P. R. China.
| | - Lu Liu
- School of Pharmacy, Gansu University of Chinese Medicine, Lanzhou 730000, P. R. China.
| |
Collapse
|
4
|
Selaković Ž, Nikolić AM, Ajdačić V, Opsenica IM. Application of Transition Metal‐Catalyzed Decarbonylation of Aldehydes in the Total Synthesis of Natural Products. European J Org Chem 2022. [DOI: 10.1002/ejoc.202101265] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Affiliation(s)
- Života Selaković
- Department of Organic Chemistry University of Belgrade – Faculty of Chemistry PO Box 51, Studentski trg 16 11158 Belgrade Serbia
| | - Andrea M. Nikolić
- Department of Organic Chemistry University of Belgrade – Faculty of Chemistry PO Box 51, Studentski trg 16 11158 Belgrade Serbia
| | - Vladimir Ajdačić
- Innovative Centre Faculty of Chemistry, Ltd. Studentski trg 12–16 11158 Belgrade Serbia
| | - Igor M. Opsenica
- Department of Organic Chemistry University of Belgrade – Faculty of Chemistry PO Box 51, Studentski trg 16 11158 Belgrade Serbia
- Department of Organic Chemistry University of Belgrade – Faculty of Chemistry PO Box 51, Studentski trg 16 11158 Belgrade Serbia
| |
Collapse
|
5
|
Heravi MM, Momeni T, Zadsirjan V, Mohammadi L. Application of The Dess-Martin Oxidation in Total Synthesis of Natural Products. Curr Org Synth 2020; 18:125-196. [PMID: 32940184 DOI: 10.2174/1570179417666200917102634] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/20/2020] [Revised: 08/07/2020] [Accepted: 08/18/2020] [Indexed: 11/22/2022]
Abstract
Dess-Martin periodinane (DMP), a commercially available chemical, is frequently utilized as a mild oxidative agent for the selective oxidation of primary and secondary alcohols to their corresponding aldehydes and ketones, respectively. DMP shows several merits over other common oxidative agents such as chromiumand DMSO-based oxidants; thus, it is habitually employed in the total synthesis of natural products. In this review, we try to underscore the applications of DMP as an effective oxidant in an appropriate step (steps) in the multi-step total synthesis of natural products.
Collapse
Affiliation(s)
- Majid M Heravi
- Department of Chemistry, School of Science, Alzahra University, POBox 1993891176, Vanak, Tehran, Iran
| | - Tayebe Momeni
- Department of Chemistry, School of Science, Alzahra University, POBox 1993891176, Vanak, Tehran, Iran
| | - Vahideh Zadsirjan
- Department of Chemistry, School of Science, Alzahra University, POBox 1993891176, Vanak, Tehran, Iran
| | - Leila Mohammadi
- Department of Chemistry, School of Science, Alzahra University, POBox 1993891176, Vanak, Tehran, Iran
| |
Collapse
|
6
|
Shennan BDA, Smith PW, Ogura Y, Dixon DJ. A modular and divergent approach to spirocyclic pyrrolidines. Chem Sci 2020; 11:10354-10360. [PMID: 34094297 PMCID: PMC8162384 DOI: 10.1039/d0sc03676e] [Citation(s) in RCA: 21] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/03/2020] [Accepted: 08/06/2020] [Indexed: 12/17/2022] Open
Abstract
An efficient three-step sequence to afford a valuable class of spirocyclic pyrrolidines is reported. A reductive cleavage/Horner-Wadsworth-Emmons cascade facilitates the spirocyclisation of a range of isoxazolines bearing a distal β-ketophosphonate. The spirocyclisation precursors are elaborated in a facile and modular fashion, via a [3 + 2]-cycloaddition followed by the condensation of a phosphonate ester, introducing multiple points of divergence. The synthetic utility of this protocol has been demonstrated in the synthesis of a broad family of 1-azaspiro[4,4]nonanes and in a concise formal synthesis of the natural product (±)-cephalotaxine.
Collapse
Affiliation(s)
- Benjamin D A Shennan
- Department of Chemistry, Chemistry Research Laboratory, University of Oxford 12 Mansfield Road Oxford UK
| | - Peter W Smith
- Department of Chemistry, Chemistry Research Laboratory, University of Oxford 12 Mansfield Road Oxford UK
| | - Yusuke Ogura
- Department of Chemistry, Chemistry Research Laboratory, University of Oxford 12 Mansfield Road Oxford UK
| | - Darren J Dixon
- Department of Chemistry, Chemistry Research Laboratory, University of Oxford 12 Mansfield Road Oxford UK
| |
Collapse
|
7
|
Zhu S, Tran AT, Hirokami Y, Gontard G, Khaled O, Zhang Y, Kato A, Blériot Y, Sollogoub M. Bi(OTf)3-mediated intramolecular epoxide opening for bicyclic azepane synthesis. J Carbohydr Chem 2019. [DOI: 10.1080/07328303.2019.1581887] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/27/2022]
Affiliation(s)
- Sha Zhu
- Sorbonne Université, CNRS, Institut Parisien de Chimie Moléculaire, Paris, France
| | - Anh Tuan Tran
- Sorbonne Université, CNRS, Institut Parisien de Chimie Moléculaire, Paris, France
| | - Yuki Hirokami
- Department of Hospital Pharmacy, University of Toyama, Toyama, Japan
| | - Geoffrey Gontard
- Sorbonne Université, CNRS, Institut Parisien de Chimie Moléculaire, Paris, France
| | - Omar Khaled
- Sorbonne Université, CNRS, Institut Parisien de Chimie Moléculaire, Paris, France
| | - Yongmin Zhang
- Sorbonne Université, CNRS, Institut Parisien de Chimie Moléculaire, Paris, France
| | - Atsushi Kato
- Department of Hospital Pharmacy, University of Toyama, Toyama, Japan
| | - Yves Blériot
- IC2MP-UMR CNRS 7285, Université de Poitiers, Equipe “Synthèse Organique”, Groupe Glycochimie, Poitiers cedex 9, France
| | - Matthieu Sollogoub
- Sorbonne Université, CNRS, Institut Parisien de Chimie Moléculaire, Paris, France
| |
Collapse
|
8
|
Cheng JT, Zheng X, Huang PQ. Construction of multifunctional heterocycles bearing aza-quaternary carbons by titanocene-catalyzed umpolung reactions. Tetrahedron 2019. [DOI: 10.1016/j.tet.2018.11.067] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/01/2022]
|
9
|
Iyori Y, Takahashi K, Yamazaki K, Ano Y, Chatani N. Nickel-catalyzed reductive defunctionalization of esters in the absence of an external reductant: activation of C–O bonds. Chem Commun (Camb) 2019; 55:13610-13613. [DOI: 10.1039/c9cc07710c] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
Abstract
The nickel-catalyzed reductive cleavage of esters in the absence of an external reductant, which involves the cleavage of an inert acyl C–O bond in O-alkyl esters is reported.
Collapse
Affiliation(s)
- Yasuaki Iyori
- Department of Applied Chemistry
- Faculty of Engineering
- Osaka University
- Suita
- Japan
| | - Kenjiro Takahashi
- Department of Applied Chemistry
- Faculty of Engineering
- Osaka University
- Suita
- Japan
| | - Ken Yamazaki
- Department of Applied Chemistry
- Faculty of Engineering
- Osaka University
- Suita
- Japan
| | - Yusuke Ano
- Department of Applied Chemistry
- Faculty of Engineering
- Osaka University
- Suita
- Japan
| | - Naoto Chatani
- Department of Applied Chemistry
- Faculty of Engineering
- Osaka University
- Suita
- Japan
| |
Collapse
|
10
|
Zhang ZW, Wang CC, Xue H, Dong Y, Yang JH, Liu S, Liu WQ, Li WDZ. Asymmetric Formal Synthesis of (−)-Cephalotaxine via Palladium-Catalyzed Enantioselective Tsuji Allylation. Org Lett 2018; 20:1050-1053. [DOI: 10.1021/acs.orglett.7b04008] [Citation(s) in RCA: 30] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/04/2023]
Affiliation(s)
- Zhi-Wei Zhang
- State Key Laboratory Breeding Base-Hebei Province Key Laboratory of Molecular Chemistry for Drug, College of Chemical & Pharmaceutical Engineering, Hebei University of Science & Technology, Shijiazhuang 050018, P. R. China
| | - Cui-Cui Wang
- State Key Laboratory Breeding Base-Hebei Province Key Laboratory of Molecular Chemistry for Drug, College of Chemical & Pharmaceutical Engineering, Hebei University of Science & Technology, Shijiazhuang 050018, P. R. China
| | - Hong Xue
- State Key Laboratory Breeding Base-Hebei Province Key Laboratory of Molecular Chemistry for Drug, College of Chemical & Pharmaceutical Engineering, Hebei University of Science & Technology, Shijiazhuang 050018, P. R. China
| | - Yu Dong
- State Key Laboratory Breeding Base-Hebei Province Key Laboratory of Molecular Chemistry for Drug, College of Chemical & Pharmaceutical Engineering, Hebei University of Science & Technology, Shijiazhuang 050018, P. R. China
| | - Jian-Hua Yang
- State Key Laboratory Breeding Base-Hebei Province Key Laboratory of Molecular Chemistry for Drug, College of Chemical & Pharmaceutical Engineering, Hebei University of Science & Technology, Shijiazhuang 050018, P. R. China
| | - Shouxin Liu
- State Key Laboratory Breeding Base-Hebei Province Key Laboratory of Molecular Chemistry for Drug, College of Chemical & Pharmaceutical Engineering, Hebei University of Science & Technology, Shijiazhuang 050018, P. R. China
| | - Wen-Qing Liu
- State Key Laboratory Breeding Base-Hebei Province Key Laboratory of Molecular Chemistry for Drug, College of Chemical & Pharmaceutical Engineering, Hebei University of Science & Technology, Shijiazhuang 050018, P. R. China
| | - Wei-Dong Z. Li
- School
of Life Science and Engineering, Southwest Jiaotong University, Chengdu 610031, P. R. China
| |
Collapse
|
11
|
Pérard-Viret J, Quteishat L, Alsalim R, Royer J, Dumas F. Cephalotaxus Alkaloids. THE ALKALOIDS. CHEMISTRY AND BIOLOGY 2017; 78:205-352. [PMID: 28838429 PMCID: PMC7110560 DOI: 10.1016/bs.alkal.2017.07.001] [Citation(s) in RCA: 22] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Indexed: 12/26/2022]
Abstract
Cephalotaxus alkaloids represent a family of plant secondary metabolites known for 60 years. Significant activity against leukemia in mice was demonstrated for extracts of Cephalotaxus. Cephalotaxine (CET) (1), the major alkaloid of this series was isolated from Cephalotaxus drupacea species by Paudler in 1963. The subsequent discovery of promising antitumor activity among new Cephalotaxus derivatives reported by Chinese, Japanese, and American teams triggered extensive structure elucidation and biological studies in this family. The structural feature of this cephalotaxane family relies mainly on its tetracyclic alkaloid backbone, which comprises an azaspiranic 1-azaspiro[4.4]nonane unit (rings C and D) and a benzazepine ring system (rings A and B), which is linked by its C3 alcohol function to a chiral oxygenated side chain by a carboxylic function alpha to a tetrasubstituted carbon center. The botanical distribution of these alkaloids is limited to the Cephalotaxus genus (Cephalotaxaceae). The scope of biological activities of the Cephalotaxus alkaloids is mainly centered on the antileukemic activity of homoharringtonine (HHT) (2), which in particular demonstrated marked benefits in the treatment of orphan myeloid leukemia and was approved as soon as 2009 by European Medicine Agency and by US Food and Drug Administration in 2012. Its exact mechanism of action was partly elucidated and it was early recognized that HHT (2) inhibited protein synthesis at the level of the ribosome machinery. Interestingly, after a latency period of two decades, the topic of Cephalotaxus alkaloids reemerged as a prolific source of new natural structures. To date, more than 70 compounds have been identified and characterized. Synthetic studies also regained attention during the past two decades, and numerous methodologies were developed to access the first semisynthetic HHT (2) of high purity suitable for clinical studies, and then high grade enantiomerically pure CET (1), HHT (2), and analogs.
Collapse
Affiliation(s)
- Joëlle Pérard-Viret
- Université Paris Descartes, CNRS, Université Sorbonne Paris Cité, Paris, France
| | - Laith Quteishat
- Université Paris Sud, CNRS, Université Paris Saclay, Châtenay-Malabry, France
| | - Rana Alsalim
- Université Paris Sud, CNRS, Université Paris Saclay, Châtenay-Malabry, France
| | - Jacques Royer
- Université Paris Descartes, CNRS, Université Sorbonne Paris Cité, Paris, France
| | - Françoise Dumas
- Université Paris Sud, CNRS, Université Paris Saclay, Châtenay-Malabry, France
| |
Collapse
|
12
|
Mailyan AK, Eickhoff JA, Minakova AS, Gu Z, Lu P, Zakarian A. Cutting-Edge and Time-Honored Strategies for Stereoselective Construction of C–N Bonds in Total Synthesis. Chem Rev 2016; 116:4441-557. [DOI: 10.1021/acs.chemrev.5b00712] [Citation(s) in RCA: 111] [Impact Index Per Article: 13.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/22/2023]
Affiliation(s)
- Artur K. Mailyan
- Department
of Chemistry and Biochemistry, University of California, Santa Barbara, California 93106, United States
| | - John A. Eickhoff
- Department
of Chemistry and Biochemistry, University of California, Santa Barbara, California 93106, United States
| | - Anastasiia S. Minakova
- Department
of Chemistry and Biochemistry, University of California, Santa Barbara, California 93106, United States
| | - Zhenhua Gu
- Department
of Chemistry, University of Science and Technology of China, 96 Jinzhai Road, Hefei, Anhui 230026, China
| | - Ping Lu
- Department
of Chemistry and Biochemistry, University of California, Santa Barbara, California 93106, United States
| | - Armen Zakarian
- Department
of Chemistry and Biochemistry, University of California, Santa Barbara, California 93106, United States
| |
Collapse
|
13
|
Annadi K, Wee AGH. An Alkylidene Carbene C–H Activation Approach toward the Enantioselective Syntheses of Spirolactams: Application to the Synthesis of (−)-Adalinine. J Org Chem 2016; 81:1021-38. [DOI: 10.1021/acs.joc.5b02582] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/20/2023]
Affiliation(s)
- Krishna Annadi
- Department
of Chemistry and
Biochemistry, University of Regina, Regina, Saskatchewan, S4S 0A2, Canada
| | - Andrew G. H. Wee
- Department
of Chemistry and
Biochemistry, University of Regina, Regina, Saskatchewan, S4S 0A2, Canada
| |
Collapse
|
14
|
Hager A, Vrielink N, Hager D, Lefranc J, Trauner D. Synthetic approaches towards alkaloids bearing α-tertiary amines. Nat Prod Rep 2015; 33:491-522. [PMID: 26621771 DOI: 10.1039/c5np00096c] [Citation(s) in RCA: 140] [Impact Index Per Article: 15.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/24/2022]
Abstract
Alkaloids account for some of the most beautiful and biologically active natural products. Although they are usually classified along biosynthetic criteria, they can also be categorized according to certain structural motifs. Amongst these, the α-tertiary amine (ATA), i.e. a tetrasubstituted carbon atom surrounded by three carbons and one nitrogen, is particularly interesting. A limited number of methods have been described to access this functional group and fewer still are commonly used in synthesis. Herein, we review some approaches to asymmetrically access ATAs and provide an overview of alkaloid total syntheses where those have been employed.
Collapse
Affiliation(s)
- Anastasia Hager
- Fakultät für Chemie und Pharmazie, Ludwig-Maximilians-Universität München, and Munich Center for Integrated Protein Science, Butenandtstr. 5 - 13, 81377 München, Germany.
| | | | | | | | | |
Collapse
|
15
|
|
16
|
Oliva-Madrid MJ, García-López JA, Saura-Llamas I, Bautista D, Vicente J. Insertion Reactions on Carbopalladated Benzyne: From Eight- to Nine- and Ten-Membered Palladacycles. Applications to the Synthesis of N-Heterocycles. Organometallics 2014. [DOI: 10.1021/om500772p] [Citation(s) in RCA: 30] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/15/2023]
Affiliation(s)
- María-José Oliva-Madrid
- Grupo
de Química Organometálica, Departamento de Química
Inorgánica, Facultad de Química, Universidad de Murcia, E-301001 Murcia, Spain
| | - José-Antonio García-López
- Grupo
de Química Organometálica, Departamento de Química
Inorgánica, Facultad de Química, Universidad de Murcia, E-301001 Murcia, Spain
| | - Isabel Saura-Llamas
- Grupo
de Química Organometálica, Departamento de Química
Inorgánica, Facultad de Química, Universidad de Murcia, E-301001 Murcia, Spain
| | | | - José Vicente
- Grupo
de Química Organometálica, Departamento de Química
Inorgánica, Facultad de Química, Universidad de Murcia, E-301001 Murcia, Spain
| |
Collapse
|
17
|
|
18
|
|
19
|
Zhang ZW, Zhang XF, Feng J, Yang YH, Wang CC, Feng JC, Liu S. Formal synthesis of cephalotaxine. J Org Chem 2012; 78:786-90. [PMID: 23214930 DOI: 10.1021/jo302608a] [Citation(s) in RCA: 26] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
A formal synthesis of cephalotaxine, the parent member of the Cephalotaxus alkaloids, was achieved. It features a practical four-step assembly of the benzazepine-bearing pentacyclic ring system through two alkylation reactions, acidic hydrolysis, and aldolization.
Collapse
Affiliation(s)
- Zhi-Wei Zhang
- State Key Laboratory Breeding Base-Hebei Province Key Laboratory of Molecular Chemistry for Drug, College of Chemical & Pharmaceutical Engineering, Hebei University of Science & Technology, Shijiazhuang, 050018, China.
| | | | | | | | | | | | | |
Collapse
|
20
|
García-López JA, Saura-Llamas I, McGrady JE, Bautista D, Vicente J. Insertion of Allenes into the Pd–C Bond of Ortho-Palladated Primary Arylamines of Biological Relevance: Phenethylamine, Phentermine, (l)-Phenylalanine Methyl Ester, and (l)-Tryptophan Methyl Ester. Synthesis of Tetrahydro-3-benzazepines and Their Salts. Organometallics 2012. [DOI: 10.1021/om300928j] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/13/2023]
Affiliation(s)
- José-Antonio García-López
- Grupo de Química Organometálica,
Departamento de Química Inorgánica, Facultad de Química, Universidad de Murcia, E−30071 Murcia, Spain
| | - Isabel Saura-Llamas
- Grupo de Química Organometálica,
Departamento de Química Inorgánica, Facultad de Química, Universidad de Murcia, E−30071 Murcia, Spain
| | - John E. McGrady
- Department of Chemistry, Inorganic
Chemistry Laboratory, University of Oxford, OX1 3QR, U.K
| | | | - José Vicente
- Grupo de Química Organometálica,
Departamento de Química Inorgánica, Facultad de Química, Universidad de Murcia, E−30071 Murcia, Spain
| |
Collapse
|
21
|
Zhang QW, Xiang K, Tu YQ, Zhang SY, Zhang XM, Zhao YM, Zhang TC. Formal synthesis of (-)-cephalotaxine based on a tandem hydroamination/semipinacol rearrangement reaction. Chem Asian J 2012; 7:894-8. [PMID: 22383373 DOI: 10.1002/asia.201101029] [Citation(s) in RCA: 56] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/19/2011] [Indexed: 11/12/2022]
Affiliation(s)
- Qing-Wei Zhang
- State Key Laboratory of Applied Organic Chemistry and Department of Chemistry, Lanzhou University, Lanzhou 730000, P. R. China
| | | | | | | | | | | | | |
Collapse
|
22
|
Abdelkafi H, Nay B. Natural products from Cephalotaxus sp.: chemical diversity and synthetic aspects. Nat Prod Rep 2012; 29:845-69. [DOI: 10.1039/c2np20037f] [Citation(s) in RCA: 140] [Impact Index Per Article: 11.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
|
23
|
Hsu SF, Ko CW, Wu YT. Cobalt-Catalyzed Carbon-Carbon Bond Formation: Synthesis and Applications of Enantiopure Pyrrolidine Derivatives[1]. Adv Synth Catal 2011. [DOI: 10.1002/adsc.201100220] [Citation(s) in RCA: 27] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
|
24
|
Li WDZ, Duo WG, Zhuang CH. Concise Total Synthesis of (±)-Cephalotaxine via a Transannulation Strategy: Development of a Facile Reductive oxy-Nazarov Cyclization. Org Lett 2011; 13:3538-41. [DOI: 10.1021/ol201390r] [Citation(s) in RCA: 43] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Wei-Dong Z. Li
- State Key Laboratory of Elemento-organic Chemistry, Nankai University, Tianjin 300071, P. R. China
| | - Wei-Guo Duo
- State Key Laboratory of Elemento-organic Chemistry, Nankai University, Tianjin 300071, P. R. China
| | - Cheng-Han Zhuang
- State Key Laboratory of Elemento-organic Chemistry, Nankai University, Tianjin 300071, P. R. China
| |
Collapse
|
25
|
Sun MR, Lu HT, Wang YZ, Yang H, Liu HM. Highly efficient formal synthesis of cephalotaxine, using the Stevens rearrangement--acid lactonization sequence as a key transformation. J Org Chem 2010; 74:2213-6. [PMID: 19170601 DOI: 10.1021/jo8025252] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
Cephalotaxine (1), the major alkaloid isolated from Cephalotaxus species, has attracted considerable attention due to the promising antitumor activity of several of its derivatives and its unique structural features. Herein we describe a highly efficient formal synthesis of 1 employing the [2,3]-Stevens rearrangement-acid lactonization sequence as a key transformation from readily available (3,4-dimethoxyphenyl)acetic acid, methyl prolinate, and allyl bromide.
Collapse
Affiliation(s)
- Mo-ran Sun
- New Drug Research & Development Center, School of Pharmaceutical Science, Zhengzhou University, Zhengzhou 450001, China
| | | | | | | | | |
Collapse
|
26
|
Zhao YM, Gu P, Zhang HJ, Zhang QW, Fan CA, Tu YQ, Zhang FM. Formal Syntheses of (±)-Stemonamine and (±)-Cephalotaxine. J Org Chem 2009; 74:3211-3. [DOI: 10.1021/jo900113s] [Citation(s) in RCA: 38] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Yu-Ming Zhao
- State Key Laboratory of Applied Organic Chemistry and Department of Chemistry, Lanzhou University, Lanzhou 730000, P. R. China
| | - Peiming Gu
- State Key Laboratory of Applied Organic Chemistry and Department of Chemistry, Lanzhou University, Lanzhou 730000, P. R. China
| | - Hai-Jun Zhang
- State Key Laboratory of Applied Organic Chemistry and Department of Chemistry, Lanzhou University, Lanzhou 730000, P. R. China
| | - Qing-Wei Zhang
- State Key Laboratory of Applied Organic Chemistry and Department of Chemistry, Lanzhou University, Lanzhou 730000, P. R. China
| | - Chun-An Fan
- State Key Laboratory of Applied Organic Chemistry and Department of Chemistry, Lanzhou University, Lanzhou 730000, P. R. China
| | - Yong-Qiang Tu
- State Key Laboratory of Applied Organic Chemistry and Department of Chemistry, Lanzhou University, Lanzhou 730000, P. R. China
| | - Fu-Min Zhang
- State Key Laboratory of Applied Organic Chemistry and Department of Chemistry, Lanzhou University, Lanzhou 730000, P. R. China
| |
Collapse
|
27
|
Smith JA, Molesworth PP, Ryan JH. Chapter 7: Seven-Membered Rings. PROGRESS IN HETEROCYCLIC CHEMISTRY 2009. [DOI: 10.1016/s0959-6380(09)70044-3] [Citation(s) in RCA: 13] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/26/2022]
|