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Barnes GL, Hong AY, Vanderwal CD. A Synthesis of Alstonlarsine A via Alstolucines B and F Demonstrates the Chemical Feasibility of a Proposed Biogenesis. Angew Chem Int Ed Engl 2023; 62:e202215098. [PMID: 36448226 PMCID: PMC9852003 DOI: 10.1002/anie.202215098] [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: 10/13/2022] [Revised: 11/23/2022] [Accepted: 11/29/2022] [Indexed: 12/05/2022]
Abstract
We offer a new biogenetic proposal for the origin of the complex alkaloid alstonlarsine A, through rearrangement of the Strychnos alkaloids alstolucines B and F. Further, we provide evidence of the chemical feasibility of this proposal in the facile conversion of synthetic alstolucines into alstonlarsine A through a short, efficient sequence of N-methylation, β-elimination, and a cascade 1,7-hydride shift/Mannich cyclization. We believe that this is the first biogenetic proposal involving the "tert-amino effect", a hydride-shift-based internal redox trigger of a Mannich cyclization. A further interesting feature of the cascade is that its stereochemical outcome most likely originates in conformational preferences during the hydride shift.
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Affiliation(s)
- Griffin L Barnes
- 1102 Natural Sciences II, Department of Chemistry, University of California, Irvine, CA92697-2025, USA
| | - Allen Y Hong
- 1102 Natural Sciences II, Department of Chemistry, University of California, Irvine, CA92697-2025, USA
| | - Christopher D Vanderwal
- 1102 Natural Sciences II, Department of Chemistry, University of California, Irvine, CA92697-2025, USA
- Department of Pharmaceutical Sciences, 101 Theory, University of California, Irvine, CA-92697, USA
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2
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A Catharanthus roseus Fe(II)/α-ketoglutarate-dependent dioxygenase catalyzes a redox-neutral reaction responsible for vindolinine biosynthesis. Nat Commun 2022; 13:3335. [PMID: 35680936 PMCID: PMC9184523 DOI: 10.1038/s41467-022-31100-1] [Citation(s) in RCA: 8] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/11/2021] [Accepted: 06/03/2022] [Indexed: 11/08/2022] Open
Abstract
The Madagascar's periwinkle is the model plant for studies of plant specialized metabolism and monoterpenoid indole alkaloids (MIAs), and an important source for the anticancer medicine vinblastine. The elucidation of entire 28-step biosynthesis of vinblastine allowed further investigations for the formation of other remarkably complex bioactive MIAs. In this study, we describe the discovery and characterization of vindolinine synthase, a Fe(II)/α-ketoglutarate-dependent (Fe/2OG) dioxygenase, that diverts assembly of tabersonine to vinblastine toward the formation of three alternatively cyclized MIAs: 19S-vindolinine, 19R-vindolinine, and venalstonine. Vindolinine synthase catalyzes a highly unusual, redox-neutral reaction to form a radical from dehydrosecodine, which is further cyclized by hydrolase 2 to form the three MIA isomers. We further show the biosynthesis of vindolinine epimers from tabersonine using hydrolase 2 catalyzed reverse cycloaddition. While the occurrence of vindolinines is rare in nature, the more widely found venalstonine derivatives are likely formed from similar redox-neutral reactions by homologous Fe/2OG dioxygenases.
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Zhao S, Sirasani G, Andrade RB. Aspidosperma and Strychnos alkaloids: Chemistry and biology. THE ALKALOIDS. CHEMISTRY AND BIOLOGY 2021; 86:1-143. [PMID: 34565505 DOI: 10.1016/bs.alkal.2021.05.001] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 04/04/2023]
Abstract
Of Nature's nearly 3000 unique monoterpene indole alkaloids derived from tryptophan, those members belonging to the Aspidosperma and Strychnos families continue to impact the fields of natural products (i.e., isolation, structure determination, biosynthesis) and organic chemistry (i.e., chemical synthesis, methodology development) among others. This review covers the biological activity (Section 2), biosynthesis (Section 3), and synthesis of both classical and novel Aspidosperma (Section 4), Strychnos (Section 5), and selected bis-indole (Section 6) alkaloids. Technological advancements in genetic sequencing and bioinformatics have deepened our understanding of how Nature assembles these intriguing molecules. The proliferation of innovative synthetic strategies and tactics for the synthesis of the alkaloids covered in this review, which include contributions from over fifty research groups from around the world, are a testament to the creative power and technical skills of synthetic organic chemists. To be sure, Nature-the Supreme molecular architect and source of a dazzling array of irresistible chemical logic puzzles-continues to inspire scientists across multiple disciplines and will certainly continue to do so for the foreseeable future.
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Affiliation(s)
- Senzhi Zhao
- Department of Chemistry, Temple University, Philadelphia, PA, United States
| | | | - Rodrigo B Andrade
- Department of Chemistry, Temple University, Philadelphia, PA, United States
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4
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Reuß F, Heretsch P. Synthetic strategies for the ibophyllidine alkaloids. Nat Prod Rep 2020; 38:693-701. [PMID: 33074277 DOI: 10.1039/d0np00036a] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Covering: 1975-2020The ibophyllidine alkaloids are unique pyrroloindole alkaloids exhibiting a five-membered D-ring in contrast to the six-membered D-ring of the more common Aspidosperma and Strychnos alkaloids. This structural feature has made them sought-after targets for organic chemists as well as for the elucidation of their biosynthesis. Beginning with the first and eponymous member ibophyllidine, isolation and structure determination is discussed. The main focus of this review are the diverse chemical approaches towards the ibophyllidines in context with their respective biosynthesis. The often employed Diels-Alder reaction strategy, two other named reaction-based strategies and the most recent enantioselective strategies are presented and compared.
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Affiliation(s)
- Franziska Reuß
- Institut für Chemie und Biochemie, Freie Universität Berlin, Takustraße 3, 14195 Berlin, Germany.
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5
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Lichman BR, O'Connor SE, Kries H. Biocatalytic Strategies towards [4+2] Cycloadditions. Chemistry 2019; 25:6864-6877. [DOI: 10.1002/chem.201805412] [Citation(s) in RCA: 24] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/29/2018] [Revised: 01/17/2019] [Indexed: 11/05/2022]
Affiliation(s)
- Benjamin R. Lichman
- Department of Biological Chemistry; The John Innes Centre; Colney Lane Norwich UK
- Current address: Department of Biology; University of York; York YO10 5YW UK
| | - Sarah E. O'Connor
- Department of Biological Chemistry; The John Innes Centre; Colney Lane Norwich UK
| | - Hajo Kries
- Independent Junior Research Group, Biosynthetic Design of Natural Products; Leibniz Institute for Natural Product Research and Infection Biology, Hans Knöll Institute (HKI Jena); Beutenbergstr. 11a 07745 Jena Germany
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6
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Rajkumar K, Murthy TR, Zehra A, Khursade PS, Kalivendi SV, Tiwari AK, Prakasham RS, Raju BC. A One-pot Facile Construction of 1H
-1,2,3-Triazolyl 1,2-Dihydropyridyl Derivatives and Evaluation of Bioactivity Profile. ChemistrySelect 2018. [DOI: 10.1002/slct.201802809] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/19/2023]
Affiliation(s)
- Kommera Rajkumar
- Organic Synthesis & Process Chemistry Division
- AcSIR-Postal Staff College Area, Sector 19, Kamla Nehru Nagar, Ghaziabad; Uttar Pradesh 201002
| | | | - Amtul Zehra
- Center for Natural Products & Traditional Knowledge.; CSIR-Indian Institute of Chemical Technology; Hyderabad- 500007 India
| | | | | | - Ashok Kumar Tiwari
- Center for Natural Products & Traditional Knowledge.; CSIR-Indian Institute of Chemical Technology; Hyderabad- 500007 India
| | | | - Bhimapaka China Raju
- Organic Synthesis & Process Chemistry Division
- AcSIR-Postal Staff College Area, Sector 19, Kamla Nehru Nagar, Ghaziabad; Uttar Pradesh 201002
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Pandey G, Khamrai J, Mishra A, Maity P, Chikkade PK. Iminium ion-enamine cascade reaction enables the asymmetric total syntheses of aspidosperma alkaloids vincadifformine and ervinceine. Tetrahedron 2018. [DOI: 10.1016/j.tet.2018.08.025] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/28/2022]
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8
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Kogure N. Asymmetric Total Synthesis of Andranginine and Absolute Configuration of Natural Product Isolated from Kopsia arborea. J SYN ORG CHEM JPN 2018. [DOI: 10.5059/yukigoseikyokaishi.76.446] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Affiliation(s)
- Noriyuki Kogure
- Graduate School of Pharmaceutical Sciences, Chiba University
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9
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Tooriyama S, Mimori Y, Wu Y, Kogure N, Kitajima M, Takayama H. Asymmetric Total Synthesis of Pentacyclic Indole Alkaloid Andranginine and Absolute Configuration of Natural Product Isolated from Kopsia arborea. Org Lett 2017; 19:2722-2725. [DOI: 10.1021/acs.orglett.7b01076] [Citation(s) in RCA: 21] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/28/2022]
Affiliation(s)
- Shino Tooriyama
- Graduate School of Pharmaceutical
Sciences, Chiba University, 1-8-1 Inohana,
Chuo-ku, Chiba 260-8675, Japan
| | - Yuji Mimori
- Graduate School of Pharmaceutical
Sciences, Chiba University, 1-8-1 Inohana,
Chuo-ku, Chiba 260-8675, Japan
| | - Yuqiu Wu
- Graduate School of Pharmaceutical
Sciences, Chiba University, 1-8-1 Inohana,
Chuo-ku, Chiba 260-8675, Japan
| | - Noriyuki Kogure
- Graduate School of Pharmaceutical
Sciences, Chiba University, 1-8-1 Inohana,
Chuo-ku, Chiba 260-8675, Japan
| | - Mariko Kitajima
- Graduate School of Pharmaceutical
Sciences, Chiba University, 1-8-1 Inohana,
Chuo-ku, Chiba 260-8675, Japan
| | - Hiromitsu Takayama
- Graduate School of Pharmaceutical
Sciences, Chiba University, 1-8-1 Inohana,
Chuo-ku, Chiba 260-8675, Japan
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10
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Tan PW, Seayad J, Dixon DJ. Expeditious and Divergent Total Syntheses of Aspidosperma Alkaloids Exploiting Iridium(I)-Catalyzed Generation of Reactive Enamine Intermediates. Angew Chem Int Ed Engl 2016; 55:13436-13440. [DOI: 10.1002/anie.201605503] [Citation(s) in RCA: 98] [Impact Index Per Article: 12.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/06/2016] [Revised: 08/18/2016] [Indexed: 11/12/2022]
Affiliation(s)
- Peng Wen Tan
- Department of Chemistry; Chemistry Research Laboratory; University of Oxford; 12 Mansfield Road Oxford UK
- Organic Chemistry; Institute of Chemical and Engineering Sciences; 8 Biomedical Grove, Neuros, #07-01 Singapore 138665 Singapore
| | - Jayasree Seayad
- Organic Chemistry; Institute of Chemical and Engineering Sciences; 8 Biomedical Grove, Neuros, #07-01 Singapore 138665 Singapore
| | - Darren J. Dixon
- Department of Chemistry; Chemistry Research Laboratory; University of Oxford; 12 Mansfield Road Oxford UK
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11
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Tan PW, Seayad J, Dixon DJ. Expeditious and Divergent Total Syntheses of Aspidosperma Alkaloids Exploiting Iridium(I)-Catalyzed Generation of Reactive Enamine Intermediates. Angew Chem Int Ed Engl 2016. [DOI: 10.1002/ange.201605503] [Citation(s) in RCA: 48] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
Affiliation(s)
- Peng Wen Tan
- Department of Chemistry; Chemistry Research Laboratory; University of Oxford; 12 Mansfield Road Oxford UK
- Organic Chemistry; Institute of Chemical and Engineering Sciences; 8 Biomedical Grove, Neuros, #07-01 Singapore 138665 Singapore
| | - Jayasree Seayad
- Organic Chemistry; Institute of Chemical and Engineering Sciences; 8 Biomedical Grove, Neuros, #07-01 Singapore 138665 Singapore
| | - Darren J. Dixon
- Department of Chemistry; Chemistry Research Laboratory; University of Oxford; 12 Mansfield Road Oxford UK
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12
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Pandey G, C PK. Iminium Ion Cascade Reaction in the Total Synthesis of (+)-Vincadifformine. Org Lett 2011; 13:4672-5. [DOI: 10.1021/ol201892j] [Citation(s) in RCA: 38] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/24/2022]
Affiliation(s)
- Ganesh Pandey
- Division of Organic Chemistry, National Chemical Laboratory, Pune-411008, India
| | - Prasanna Kumara C
- Division of Organic Chemistry, National Chemical Laboratory, Pune-411008, India
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13
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Kalaus G, T葉h F, Pipa G, Greiner I, Szollosy 輦, Rill A, G嗄嗷y 軾, Hazai L, Sz�tay C. Synthesis of Vinca Alkaloids and Related Compounds. Part 109. An Intramolecular [4+2] Cycloaddition Mediated Biomimetic Synthesis of (±)-Iboxyphylline. HETEROCYCLES 2008. [DOI: 10.3987/com-07-11172] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
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14
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Tóth F, Kalaus G, Greiner I, Kajtár-Peredy M, Gömöry Á, Hazai L, Szántay C. Synthesis of vinca alkaloids and related compounds. Part 105: Efficient convergent synthetic pathway to the ibophyllidine skeleton and synthesis of (±)-19-hydroxy-ibophyllidine and (±)-19-hydroxy-20-epiibophyllidine. Tetrahedron 2006. [DOI: 10.1016/j.tet.2006.09.079] [Citation(s) in RCA: 12] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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15
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Kalaus G, Tóth F, Greiner I, Kajtár-Peredy M, Gömöry Á, Hazai L, Szántay C. Synthesis of Vinca Alkaloids and Related Compounds. Part 106. An Efficient Convergent Synthetic Pathway to Build Up the Ibophyllidine Skeleton II. Total Synthesis of (±)-Deethylibophyllidine and (±)-14-Epi-deethylibophyllidine. HETEROCYCLES 2006. [DOI: 10.3987/com-06-10845] [Citation(s) in RCA: 12] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
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16
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Szabó LF. Reaction mechanism and chemotaxonomy in the formation of the type I indole alkaloids derived from secologanin. J PHYS ORG CHEM 2006. [DOI: 10.1002/poc.1075] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
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17
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Le Men J, Caron-Sigaut C, Hugel G, Le Men-Olivier L, Lévy J. Synthèse partielle de la (20S)-ψ-vincamine et de la (20S)-épi-16ψ-vincamine. Helv Chim Acta 2004. [DOI: 10.1002/hlca.19780610204] [Citation(s) in RCA: 16] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
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18
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Tokuyama H, Fukuyama T. Indole synthesis by radical cyclization of o-alkenylphenyl isocyanides and its application to the total synthesis of natural products. CHEM REC 2003; 2:37-45. [PMID: 11933260 DOI: 10.1002/tcr.10008] [Citation(s) in RCA: 66] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
Abstract
Development of indole synthesis by tin-mediated radical cyclization of o-alkenylphenyl isocyanide is described. Upon heating o-alkenylphenyl isocyanide in the presence of tri-n-butyltin hydride and AIBN, 2-stannyl-3-substituted indole was formed via 5-exo-trig cyclization of the imidoyl radical intermediate. After acidic workup, 3-substituted indoles were isolated. For substrates bearing simple alkyl groups, a substantial amount of tetrahydroquinoline derivatives were generated through 6-endo-trig cyclization. This undesired cyclization was suppressed by using an excess amount (five equivalents based on o-alkenylphenyl isocyanide) of ethanethiol instead of tri-n-butyltin hydride. The 2-stannylindole intermediates proved to be a suitable substrate for Stille coupling, giving 2,3-disubstituted indoles in a one-pot procedure. In addition, the 2-stannylindole intermediates could be converted to 2-iodoindoles by treatment with iodine or N-iodosuccinimide. The 2-iodoindoles thus obtained served as good substrates for Heck reactions, Stille couplings, Suzuki couplings, and palladium-mediated carbonylations, to afford a variety of 2,3-disubstituted indoles. The utility of this protocol was demonstrated by application to synthetic studies on gelsemine and discorhabdin A, and the total synthesis of an aspidosperma alkaloid, (-)-vindoline.
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Affiliation(s)
- Hidetoshi Tokuyama
- Graduate School of Pharmaceutical Sciences, The University of Tokyo, 7-3-1 Hongo, Bunkyo-ku, 113-0033, Japan
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19
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Károlyházy L, Patthy-Lukáts Á, F. Szabó L, Podányi B. Chemistry of secologanin. Part 7: Chemical fragmentation of secologanin: biomimetic transition from the aliphatic into the aromatic skeleton. Tetrahedron Lett 2000. [DOI: 10.1016/s0040-4039(99)02333-3] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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Kobayashi Y, Fukuyama T. Development of a novel indole synthesis and its application to natural products synthesis. J Heterocycl Chem 1998. [DOI: 10.1002/jhet.5570350504] [Citation(s) in RCA: 63] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
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Takayama H, Sakai SI. Chapter 11 Monoterpenoid Indole Alkaloid Syntheses Utilizing Biomimetic Reactions. THE ALKALOIDS: CHEMISTRY AND BIOLOGY 1998. [DOI: 10.1016/s1099-4831(08)60049-8] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
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23
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Studies on the biomimetic preparation of the sarpagan ring system. Attempts to apply the spontaneous “biogenetic-type cyclization” of van Tamelen to bond formation between C-5 and C-16 in the corynantheine series. Tetrahedron 1996. [DOI: 10.1016/s0040-4020(96)00928-3] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
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Danieli B, Lesma G, Palmisano G, Passarella D, Silvani A. Aspidosperma alkaloids cyclization of secodine intermediate: Synthesis of (±)-3-oxovincadifformine ethyl ester. Tetrahedron 1994. [DOI: 10.1016/s0040-4020(01)81347-8] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/17/2022]
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Chapter 1 Eburnamine—Vincamine Alkaloids. ACTA ACUST UNITED AC 1992. [DOI: 10.1016/s0099-9598(08)60059-0] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register]
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27
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Matia MP, Ezquerra J, García-Navío JL, Vaquero JJ, Alvarez-Builla J. New uses of Westphal condensation: Synthesis of flavocorylene and related indolo[2,3-a]quinolizinium salts. Tetrahedron Lett 1991. [DOI: 10.1016/0040-4039(91)80538-h] [Citation(s) in RCA: 14] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
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BlaskÓ G, Cordell GA. Chapter 1 Isolation, Structure Elucidation, and Biosynthesis of the Bisindole Alkaloids of Catharanthus. THE ALKALOIDS: CHEMISTRY AND PHARMACOLOGY 1990. [DOI: 10.1016/s0099-9598(08)60092-9] [Citation(s) in RCA: 12] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/03/2022]
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Bartoli G, Palmieri G, Petrini M. A new approach to the synthesis of 2-substituted indoles: reaction of dimetallated ortho-trimethylsilylmethylanilides with esters. Tetrahedron 1990. [DOI: 10.1016/s0040-4020(01)86701-6] [Citation(s) in RCA: 18] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
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Mehmandoust M, Marazano C, Singh R, Gillet B, Césario M, Fourrey JL, Das B. Synthesis of chiral isoquinuclidines and determination of their absolute configuration. Tetrahedron Lett 1988. [DOI: 10.1016/s0040-4039(00)80512-2] [Citation(s) in RCA: 27] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
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Gribble GW, Johnson DA. A directed metalation route to the zwitterionic indole alkaloids. Syntheses of indolo[2,3-a]quinolizine, flavopereirine, flavocarpine, and dihydroflavopereirine. Tetrahedron Lett 1987. [DOI: 10.1016/s0040-4039(00)96702-9] [Citation(s) in RCA: 42] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
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Szántay C, Blaskó G, Honty K, Dörnyei G. Chapter 2 Corynantheine, Yohimbine, and Related Alkaloids. ACTA ACUST UNITED AC 1986. [DOI: 10.1016/s0099-9598(08)60308-9] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/20/2023]
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Kutney JP, Choi LSL, Honda T, Lewis NG, Sato T, Stuart KL, Worth BR. Biosynthesis of the Indole Alkaloids. Cell-free Systems fromCatharanthus roseus Plants. Helv Chim Acta 1982. [DOI: 10.1002/hlca.19820650716] [Citation(s) in RCA: 30] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
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Chapter 3 The Aspidosperma Alkaloids. ACTA ACUST UNITED AC 1979. [DOI: 10.1016/s1876-0813(08)60298-5] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register]
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Biosynthesis of the dimeric indole alkaloids. II. Catharanthine as a precursor of vincaleukoblastine. Tetrahedron Lett 1978. [DOI: 10.1016/s0040-4039(01)94639-8] [Citation(s) in RCA: 15] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
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