1
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Brösamlen D, Oestreich M. Enantio- and Regioconvergent Synthesis of γ-Stereogenic Vinyl Germanes and Their Use as Masked Vinyl Halides. Org Lett 2023; 25:1901-1906. [PMID: 36960614 DOI: 10.1021/acs.orglett.3c00410] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/25/2023]
Abstract
A nickel-catalyzed enantio- and regioconvergent alkylation of regioisomeric mixtures of racemic germylated allylic electrophiles with alkyl nucleophiles is reported. Key to success is a newly developed hept-4-yl-substituted Pybox ligand that enables accessing various chiral γ-germyl α-alkyl allylic building blocks in excellent yields and enantioselectivities. The reason for the regioconvergence is the steering effect of the bulky germyl group. The resulting vinyl germanes can be easily halodegermylated without racemization of the allylic stereocenter to afford synthetically valuable γ-stereogenic vinyl halides.
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Affiliation(s)
- Daniel Brösamlen
- Institut für Chemie, Technische Universität Berlin, Strasse des 17. Juni 115, 10623 Berlin, Germany
| | - Martin Oestreich
- Institut für Chemie, Technische Universität Berlin, Strasse des 17. Juni 115, 10623 Berlin, Germany
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2
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Nishizawa S, Ouchi H, Suzuki H, Ohnishi T, Sasaki S, Oyagi Y, Kanakogi M, Matsumura Y, Nakagawa S, Asakawa T, Egi M, Inai M, Yoshimura F, Takita R, Kan T. Total synthesis of (-)-domoic acid, a potent ionotropic glutamate receptor agonist and the key compound in oceanic harmful algal blooms. Org Biomol Chem 2023; 21:1653-1656. [PMID: 36723220 DOI: 10.1039/d2ob02325c] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/26/2023]
Abstract
The stereo-controlled total synthesis of (-)-domoic acid is described. The critical construction of the C1'-C2' Z-configuration was accomplished by taking advantage of an unsaturated lactam structure. The side chain fragment was introduced in the final stages of synthesis through a modified Julia-Kocieński reaction, aiming for its efficient derivatization.
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Affiliation(s)
- Shigeru Nishizawa
- School of Pharmaceutical Sciences, University of Shizuoka, 52-1 Yada, Suruga-ku, Shizuoka 422-8526, Japan.
| | - Hitoshi Ouchi
- School of Pharmaceutical Sciences, University of Shizuoka, 52-1 Yada, Suruga-ku, Shizuoka 422-8526, Japan.
| | - Hiroto Suzuki
- School of Pharmaceutical Sciences, University of Shizuoka, 52-1 Yada, Suruga-ku, Shizuoka 422-8526, Japan.
| | - Takuma Ohnishi
- School of Pharmaceutical Sciences, University of Shizuoka, 52-1 Yada, Suruga-ku, Shizuoka 422-8526, Japan.
| | - Shingo Sasaki
- School of Pharmaceutical Sciences, University of Shizuoka, 52-1 Yada, Suruga-ku, Shizuoka 422-8526, Japan.
| | - Yu Oyagi
- School of Pharmaceutical Sciences, University of Shizuoka, 52-1 Yada, Suruga-ku, Shizuoka 422-8526, Japan.
| | - Masaki Kanakogi
- School of Pharmaceutical Sciences, University of Shizuoka, 52-1 Yada, Suruga-ku, Shizuoka 422-8526, Japan.
| | - Yoshitaka Matsumura
- School of Pharmaceutical Sciences, University of Shizuoka, 52-1 Yada, Suruga-ku, Shizuoka 422-8526, Japan.
| | - Shunsuke Nakagawa
- School of Pharmaceutical Sciences, University of Shizuoka, 52-1 Yada, Suruga-ku, Shizuoka 422-8526, Japan.
| | - Tomohiro Asakawa
- School of Pharmaceutical Sciences, University of Shizuoka, 52-1 Yada, Suruga-ku, Shizuoka 422-8526, Japan.
| | - Masahiro Egi
- School of Pharmaceutical Sciences, University of Shizuoka, 52-1 Yada, Suruga-ku, Shizuoka 422-8526, Japan.
| | - Makoto Inai
- School of Pharmaceutical Sciences, University of Shizuoka, 52-1 Yada, Suruga-ku, Shizuoka 422-8526, Japan.
| | - Fumihiko Yoshimura
- School of Pharmaceutical Sciences, University of Shizuoka, 52-1 Yada, Suruga-ku, Shizuoka 422-8526, Japan.
| | - Ryo Takita
- School of Pharmaceutical Sciences, University of Shizuoka, 52-1 Yada, Suruga-ku, Shizuoka 422-8526, Japan.
| | - Toshiyuki Kan
- School of Pharmaceutical Sciences, University of Shizuoka, 52-1 Yada, Suruga-ku, Shizuoka 422-8526, Japan.
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3
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Marbán-González A, Maravilla-Moreno G, Vazquez-Chavez J, Hernández-Rodríguez M, Razo-Hernández RS, Ordóñez M, Viveros-Ceballos JL. Stereocontrolled Synthesis of Enantiopure cis-Fused Octahydroisoindolones via Chiral Oxazoloisoindolone Lactams. J Org Chem 2021; 86:16361-16368. [PMID: 34738814 DOI: 10.1021/acs.joc.1c01757] [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
Kinetically controlled cyclocondensation of stereoisomeric and ring-chain tautomeric mixture of (±)-hydroxylactone 1 and 0.5 equiv of (R)-phenylglycinol provided tricyclic oxazoloisoindolone lactam (3R,5aS,9aR,9bS)-2a, a versatile intermediate for further stereocontrolled transformations to access enantiopure cis-fused octahydroisoindolones. An extension of this methodology was successfully applied to the synthesis of the 5,6-dihydroxy derivative (3aR,5R,6S,7aS)-17.
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Affiliation(s)
- Alberto Marbán-González
- Centro de Investigaciones Químicas-IICBA, Universidad Autónoma del Estado de Morelos, Av. Universidad 1001, 62209 Cuernavaca, Morelos, Mexico
| | - Gaspar Maravilla-Moreno
- Centro de Investigaciones Químicas-IICBA, Universidad Autónoma del Estado de Morelos, Av. Universidad 1001, 62209 Cuernavaca, Morelos, Mexico
| | - Josué Vazquez-Chavez
- Instituto de Química, Universidad Nacional Autónoma de México, Circuito Exterior, Ciudad Universitaria, 04510 Coyoacán, Mexico City, Mexico
| | - Marcos Hernández-Rodríguez
- Instituto de Química, Universidad Nacional Autónoma de México, Circuito Exterior, Ciudad Universitaria, 04510 Coyoacán, Mexico City, Mexico
| | - Rodrigo Said Razo-Hernández
- Centro de Investigación en Dinámica Celular-IICBA, Universidad Autónoma del Estado de Morelos, Av. Universidad 1001, 62209 Cuernavaca, Morelos, Mexico
| | - Mario Ordóñez
- Centro de Investigaciones Químicas-IICBA, Universidad Autónoma del Estado de Morelos, Av. Universidad 1001, 62209 Cuernavaca, Morelos, Mexico
| | - José Luis Viveros-Ceballos
- Centro de Investigaciones Químicas-IICBA, Universidad Autónoma del Estado de Morelos, Av. Universidad 1001, 62209 Cuernavaca, Morelos, Mexico
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4
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Cheng J, Li YH, Huang J, Yang Z. Total Syntheses of Vicinal Dichloride Monoterpenes Enabled by Aza-Belluš-Claisen Rearrangement. Org Lett 2021; 23:8465-8470. [PMID: 34652926 DOI: 10.1021/acs.orglett.1c03187] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
Diastereoselective syntheses of syn- and anti-vicinal dihalides were achieved via an aza-Belluš-Claisen rearrangement, which involved the reaction of an α-chloro carboxylic acid chloride with halogen-substituted trans-allyl morpholines in the presence of Lewis acids. The developed method was used for the total synthesis of a group of monoterpene natural products bearing vicinal dichloride subunits.
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Affiliation(s)
- Jiangqun Cheng
- State Key Laboratory of Chemical Oncogenomics and Key Laboratory of Chemical Genomics, Peking University Shenzhen Graduate School, Shenzhen 518055, China
| | - Yuan-He Li
- Key Laboratory of Bioorganic Chemistry and Molecular Engineering of Ministry of Education and Beijing National Laboratory for Molecular Science (BNLMS), Peking University, Beijing 100871, China
| | - Jun Huang
- State Key Laboratory of Chemical Oncogenomics and Key Laboratory of Chemical Genomics, Peking University Shenzhen Graduate School, Shenzhen 518055, China
| | - Zhen Yang
- State Key Laboratory of Chemical Oncogenomics and Key Laboratory of Chemical Genomics, Peking University Shenzhen Graduate School, Shenzhen 518055, China.,Key Laboratory of Bioorganic Chemistry and Molecular Engineering of Ministry of Education and Beijing National Laboratory for Molecular Science (BNLMS), Peking University, Beijing 100871, China
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5
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Maeno Y, Kotaki Y, Terada R, Hidaka M, Cho Y, Konoki K, Yotsu-Yamashita M. Preparation of domoic acid analogues using a bioconversion system, and their toxicity in mice. Org Biomol Chem 2021; 19:7894-7902. [PMID: 34549233 DOI: 10.1039/d1ob01378e] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
Abstract
Domoic acid (1, DA), a member of the natural kainoid family, is a potent agonist of ionotropic glutamate receptors in the central nervous system. The chemical synthesis of DA and its derivatives requires considerable effort to establish a pyrrolidine ring containing three contiguous stereocenters. Recently, a biosynthetic cyclase for DA, DabC, was identified. This enzyme cyclizes the linear precursor of isodomoic acid A (IA) to IA, a bioactive DA analogue. In this study, we developed a bioconversion system to obtain DA analogues from linear substrates prepared by simple chemical synthesis using DabC expressed in Escherichia coli, in vivo. Three IA analogues with various substitutions at the C7'-geranyl terminus were prepared using this system: two minor natural analogues, 7'-methyl-IA (5) and 7'-hydroxy-IA (6), and one new unnatural analogue, 7'-amide-IA (7). In addition, the toxicity of these DA analogues in mice was examined by intracerebroventricular injection. Most of the mice injected with 5 (3 nmol) and 6 (3 nmol) did not show any adverse symptoms, whereas the mice injected with 7 (3 nmol) showed typical symptoms induced by DA (1, 0.7 nmol) and IA (2, 3 nmol). These results suggest that the 7'-carbonyl group in the side chain of IA (2) is crucial for its toxicity. The docking studies of DA, IA (2), 5, 6, and 7 to GluK1 supported these results.
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Affiliation(s)
- Yukari Maeno
- Graduate School of Agricultural Science, Tohoku University, 468-1 Aramaki-Aza-Aoba, Aoba-ku, Sendai 980-8572, Japan.
| | - Yuichi Kotaki
- Fukushima College, 1-1 Chigoike Miyashiro, Fukushima 960-0181, Japan
| | - Ryuta Terada
- United Graduate School of Agricultural Sciences, Kagoshima University, 1-21-24 Korimoto, Kagoshima 890-0065, Japan
| | - Masafumi Hidaka
- Graduate School of Agricultural Science, Tohoku University, 468-1 Aramaki-Aza-Aoba, Aoba-ku, Sendai 980-8572, Japan.
| | - Yuko Cho
- Graduate School of Agricultural Science, Tohoku University, 468-1 Aramaki-Aza-Aoba, Aoba-ku, Sendai 980-8572, Japan.
| | - Keiichi Konoki
- Graduate School of Agricultural Science, Tohoku University, 468-1 Aramaki-Aza-Aoba, Aoba-ku, Sendai 980-8572, Japan.
| | - Mari Yotsu-Yamashita
- Graduate School of Agricultural Science, Tohoku University, 468-1 Aramaki-Aza-Aoba, Aoba-ku, Sendai 980-8572, Japan.
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6
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Eagling L, Leonard DJ, Schwarz M, Urruzuno I, Boden G, Wailes JS, Ward JW, Clayden J. 'Reverse biomimetic' synthesis of l-arogenate and its stabilized analogues from l-tyrosine. Chem Sci 2021; 12:11394-11398. [PMID: 34667547 PMCID: PMC8447241 DOI: 10.1039/d1sc03554a] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/29/2021] [Accepted: 07/12/2021] [Indexed: 11/21/2022] Open
Abstract
l-Arogenate (also known as l-pretyrosine) is a primary metabolite on a branch of the shikimate biosynthetic pathway to aromatic amino acids. It plays a key role in the synthesis of plant secondary metabolites including alkaloids and the phenylpropanoids that are the key to carbon fixation. Yet understanding the control of arogenate metabolism has been hampered by its extreme instability and the lack of a versatile synthetic route to arogenate and its analogues. We now report a practical synthesis of l-arogenate in seven steps from O-benzyl l-tyrosine methyl ester in an overall yield of 20%. The synthetic route also delivers the fungal metabolite spiroarogenate, as well as a range of stable saturated and substituted analogues of arogenate. The key step in the synthesis is a carboxylative dearomatization by intramolecular electrophilic capture of tyrosine's phenolic ring using an N-chloroformylimidazolidinone moiety, generating a versatile, functionalizable spirodienone intermediate. l-Tyrosine provides a precursor for a practical synthesis of the unstable primary metabolite l-arogenate and some stabilised arogenate analogues.![]()
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Affiliation(s)
- Louise Eagling
- School of Chemistry, University of Bristol Cantock's Close Bristol BS8 1TS UK
| | - Daniel J Leonard
- School of Chemistry, University of Bristol Cantock's Close Bristol BS8 1TS UK
| | - Maria Schwarz
- School of Chemistry, University of Bristol Cantock's Close Bristol BS8 1TS UK
| | - Iñaki Urruzuno
- School of Chemistry, University of Bristol Cantock's Close Bristol BS8 1TS UK
| | - Grace Boden
- School of Chemistry, University of Bristol Cantock's Close Bristol BS8 1TS UK
| | - J Steven Wailes
- Jealott's Hill International Research Centre Bracknell RG42 6EY UK
| | - John W Ward
- School of Chemistry, University of Bristol Cantock's Close Bristol BS8 1TS UK
| | - Jonathan Clayden
- School of Chemistry, University of Bristol Cantock's Close Bristol BS8 1TS UK
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7
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Tian Z, Clark BLM, Menard F. Kainic Acid-Based Agonists of Glutamate Receptors: SAR Analysis and Guidelines for Analog Design. ACS Chem Neurosci 2019; 10:4190-4198. [PMID: 31550120 DOI: 10.1021/acschemneuro.9b00349] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022] Open
Abstract
A comprehensive survey of kainic acid analogs that have been tested for their biological activity is presented. Specifically, this review (1) gathers and compares over 100 kainoids according to a relative activity scale, (2) exposes structural features required to optimize affinity for kainate receptors, and (3) suggests design rules to create next-generation KA analogs. Literature SAR data are analyzed systematically and combined with the most recent crystallographic studies. In view of the renewed interest in neuroactive molecules, this review aims to help guide the efforts of organic synthesis laboratories, as well as to inform newcomers to KA/GluK research.
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Affiliation(s)
- Zhenlin Tian
- Department of Chemistry, University of British Columbia, Kelowna, BC V1V 1V7, Canada
| | - Brianna L. M. Clark
- Department of Chemistry, University of British Columbia, Kelowna, BC V1V 1V7, Canada
| | - Frederic Menard
- Department of Chemistry, University of British Columbia, Kelowna, BC V1V 1V7, Canada
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8
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Zhang XM, Tu YQ, Zhang FM, Chen ZH, Wang SH. Recent applications of the 1,2-carbon atom migration strategy in complex natural product total synthesis. Chem Soc Rev 2018; 46:2272-2305. [PMID: 28349159 DOI: 10.1039/c6cs00935b] [Citation(s) in RCA: 119] [Impact Index Per Article: 19.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/24/2022]
Abstract
1,2-Carbon atom rearrangement has been broadly applied as a guiding strategy in complex molecule assembly. As it entails the carbon-carbon or carbon-heteroatom bond migration between two vicinal atoms, this type of reaction is capable of generating structural complexity through a molecular skeletal reorganization. This review will focus on recent employment of this strategy in the total synthesis of natural products, highlighting the exceptional utility of such synthetic methodologies in the construction of intricate carbocycles, heterocycles or structurally complex motifs from synthetically more accessible precursors.
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Affiliation(s)
- Xiao-Ming Zhang
- State Key Laboratory of Applied Organic Chemistry, Lanzhou University, Lanzhou 730000, P. R. China.
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9
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Wertjes WC, Southgate EH, Sarlah D. Recent advances in chemical dearomatization of nonactivated arenes. Chem Soc Rev 2018; 47:7996-8017. [PMID: 30073226 DOI: 10.1039/c8cs00389k] [Citation(s) in RCA: 284] [Impact Index Per Article: 47.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/25/2022]
Abstract
Dearomatization reactions provide a synthetic connection between readily available, simple aromatic starting materials and more saturated intermediates of greater molecular complexity and synthetic utility. The last decade has witnessed a steady increase in the development of dearomative methods, providing new synthetic approaches to high-value building blocks and natural products. This review highlights advances both in the area of dearomatization methodologies for the most chemically inert arenes and in synthetic applications of such strategies.
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Affiliation(s)
- William C Wertjes
- Roger Adams Laboratory, Department of Chemistry, University of Illinois, Urbana, Illinois 61801, USA.
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10
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Ondet P, Filippi JJ, Lemière G, Duñach E. Stereocontrolled Cascade Cyclisation of Campholenic Enol Ether Derivatives: En Route to Vetiver-Scented Spiroxides. European J Org Chem 2018. [DOI: 10.1002/ejoc.201701578] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/11/2023]
Affiliation(s)
- Pierrick Ondet
- Institut de Chimie de Nice; CNRS; Université Côte d'Azur; Parc Valrose 06108 Nice cedex 2 France
| | - Jean-Jacques Filippi
- Institut de Chimie de Nice; CNRS; Université Côte d'Azur; Parc Valrose 06108 Nice cedex 2 France
| | - Gilles Lemière
- Institut de Chimie de Nice; CNRS; Université Côte d'Azur; Parc Valrose 06108 Nice cedex 2 France
| | - Elisabet Duñach
- Institut de Chimie de Nice; CNRS; Université Côte d'Azur; Parc Valrose 06108 Nice cedex 2 France
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11
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Lei H, Xin S, Qiu Y, Zhang X. Enantioselective total synthesis of (-)-kainic acid and (+)-acromelic acid C via Rh(i)-catalyzed asymmetric enyne cycloisomerization. Chem Commun (Camb) 2018; 54:727-730. [PMID: 29214245 DOI: 10.1039/c7cc07967b] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
Abstract
A diversity-oriented synthetic strategy was developed for the total synthesis of kainoid amino acids, which led to the enantioselective synthesis of (-)-kainic acid and the first total synthesis of (+)-acromelic acid C. Rh(i)-catalyzed asymmetric enyne cycloisomerization served as the key reaction in this strategy for the rapid construction of highly functionalized lactam, and the resulting vinyl acetate moiety was further utilized as a versatile building block for the installation of both isopropylidene and 2-pyridone units existing in natural kainoids.
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Affiliation(s)
- Honghui Lei
- Department of Chemistry, Southern University of Science and Technology, Shenzhen, 518055, China.
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12
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Inai M, Ouchi H, Asahina A, Asakawa T, Hamashima Y, Kan T. Practical Total Syntheses of Acromelic Acids A and B. Chem Pharm Bull (Tokyo) 2016; 64:723-32. [DOI: 10.1248/cpb.c16-00009] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
Affiliation(s)
- Makoto Inai
- School of Pharmaceutical Sciences, University of Shizuoka
| | - Hitoshi Ouchi
- School of Pharmaceutical Sciences, University of Shizuoka
| | - Aya Asahina
- School of Pharmaceutical Sciences, University of Shizuoka
| | | | | | - Toshiyuki Kan
- School of Pharmaceutical Sciences, University of Shizuoka
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13
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Fleary-Roberts N, Lemière G, Clayden J. Geometry-selective synthesis of the unsaturated side chains of the isodomoic acids. Tetrahedron 2015. [DOI: 10.1016/j.tet.2015.02.055] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/24/2022]
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14
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Calaza MI, Sayago FJ, Laborda P, Cativiela C. Synthesis of [c]-Fused Bicyclic Proline Analogues. European J Org Chem 2015. [DOI: 10.1002/ejoc.201403121] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
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15
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16
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Ouchi H, Asahina A, Asakawa T, Inai M, Hamashima Y, Kan T. Practical Total Syntheses of Acromelic Acids A and B. Org Lett 2014; 16:1980-3. [DOI: 10.1021/ol500529w] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Hitoshi Ouchi
- School of Pharmaceutical
Sciences, University of Shizuoka, 52-1 Yada, Suruga-ku, Shizuoka 422-8526, Japan
| | - Aya Asahina
- School of Pharmaceutical
Sciences, University of Shizuoka, 52-1 Yada, Suruga-ku, Shizuoka 422-8526, Japan
| | - Tomohiro Asakawa
- School of Pharmaceutical
Sciences, University of Shizuoka, 52-1 Yada, Suruga-ku, Shizuoka 422-8526, Japan
| | - Makoto Inai
- School of Pharmaceutical
Sciences, University of Shizuoka, 52-1 Yada, Suruga-ku, Shizuoka 422-8526, Japan
| | - Yoshitaka Hamashima
- School of Pharmaceutical
Sciences, University of Shizuoka, 52-1 Yada, Suruga-ku, Shizuoka 422-8526, Japan
| | - Toshiyuki Kan
- School of Pharmaceutical
Sciences, University of Shizuoka, 52-1 Yada, Suruga-ku, Shizuoka 422-8526, Japan
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17
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A compendium of cyclic sugar amino acids and their carbocyclic and heterocyclic nitrogen analogues. Amino Acids 2013; 45:613-89. [DOI: 10.1007/s00726-013-1521-1] [Citation(s) in RCA: 62] [Impact Index Per Article: 5.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/19/2013] [Accepted: 05/21/2013] [Indexed: 12/19/2022]
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18
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Ferrari FD, Pasqua AE, Ledgard AJ, Marquez R. Convergent approach to complex spirocyclic pyrans: practical synthesis of the oxa-pinnaic acid core. Org Biomol Chem 2013; 11:3469-76. [PMID: 23589153 DOI: 10.1039/c3ob40284c] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
The enantioselective synthesis of the oxa-pinnaic acid framework has been achieved through internal asymmetric induction. The synthetic strategy pursued illustrates the adaptability of the Achmatowicz oxidative rearrangement for the synthesis of complex spirocyclic pyrans starting from tertiary alcohols.
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Affiliation(s)
- Frank D Ferrari
- School of Chemistry, University of Glasgow, Glasgow, G12 8QQ, UK
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19
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Yu HJ, Shao C, Cui Z, Feng CG, Lin GQ. Highly Enantioselective Alkenylation of Cyclic α,β-Unsaturated Carbonyl Compounds as Catalyzed by a Rhodium-Diene Complex: Application to the Synthesis of (S)-Pregabalin and (−)-α-Kainic Acid. Chemistry 2012; 18:13274-8. [DOI: 10.1002/chem.201202660] [Citation(s) in RCA: 46] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/26/2012] [Indexed: 02/04/2023]
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20
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Orellana A, Pandey SK, Carret S, Greene AE, Poisson JF. A Diels–Alder-Based Total Synthesis of (−)-Kainic Acid. J Org Chem 2012; 77:5286-96. [DOI: 10.1021/jo300608g] [Citation(s) in RCA: 21] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Arturo Orellana
- Département de Chimie Moléculaire (SERCO)
CNRS, UMR-5250, ICMG FR-2607, Université Joseph Fourier BP-53, 38041 Grenoble Cedex 9, France
| | - Sushil K. Pandey
- Département de Chimie Moléculaire (SERCO)
CNRS, UMR-5250, ICMG FR-2607, Université Joseph Fourier BP-53, 38041 Grenoble Cedex 9, France
| | - Sébastien Carret
- Département de Chimie Moléculaire (SERCO)
CNRS, UMR-5250, ICMG FR-2607, Université Joseph Fourier BP-53, 38041 Grenoble Cedex 9, France
| | - Andrew E. Greene
- Département de Chimie Moléculaire (SERCO)
CNRS, UMR-5250, ICMG FR-2607, Université Joseph Fourier BP-53, 38041 Grenoble Cedex 9, France
| | - Jean-François Poisson
- Département de Chimie Moléculaire (SERCO)
CNRS, UMR-5250, ICMG FR-2607, Université Joseph Fourier BP-53, 38041 Grenoble Cedex 9, France
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21
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Luo Z, Zhou B, Li Y. Total Synthesis of (−)-(α)-Kainic Acid via a Diastereoselective Intramolecular [3 + 2] Cycloaddition Reaction of an Aryl Cyclopropyl Ketone with an Alkyne. Org Lett 2012; 14:2540-3. [DOI: 10.1021/ol3008414] [Citation(s) in RCA: 33] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Zhi Luo
- Shanghai Institute of Materia Medica, Chinese Academy of Sciences, 555 Road Zu Chong Zhi, Zhangjiang Hi-Tech Park, Shanghai 201203, P.R. China
| | - Bing Zhou
- Shanghai Institute of Materia Medica, Chinese Academy of Sciences, 555 Road Zu Chong Zhi, Zhangjiang Hi-Tech Park, Shanghai 201203, P.R. China
| | - Yuanchao Li
- Shanghai Institute of Materia Medica, Chinese Academy of Sciences, 555 Road Zu Chong Zhi, Zhangjiang Hi-Tech Park, Shanghai 201203, P.R. China
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22
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Evans PA, Inglesby PA. Diastereoselective Rhodium-Catalyzed Ene-Cycloisomerization Reactions of Alkenylidenecyclopropanes: Total Synthesis of (−)-α-Kainic Acid. J Am Chem Soc 2012; 134:3635-8. [DOI: 10.1021/ja210804r] [Citation(s) in RCA: 69] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- P. Andrew Evans
- Department of Chemistry, The University of Liverpool, Crown Street, Liverpool L69 7ZD, United
Kingdom
| | - Phillip A. Inglesby
- Department of Chemistry, The University of Liverpool, Crown Street, Liverpool L69 7ZD, United
Kingdom
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23
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Dearomatizing anionic cyclization of N-methyl-N-benzyldi(1-naphthyl)phosphinamide: a route for access to a new class of functionalized tricyclic azaphospholes with antitumor properties. Tetrahedron 2012. [DOI: 10.1016/j.tet.2011.11.094] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
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24
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Cai S, Liu Z, Zhang W, Zhao X, Wang DZ. Gold-catalyzed [3+2] cycloaddition/hydrolytic Michael addition/retro-aldol reactions of propargylic esters tethered to cyclohexadienones. Angew Chem Int Ed Engl 2011; 50:11133-7. [PMID: 21960469 DOI: 10.1002/anie.201104028] [Citation(s) in RCA: 55] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/12/2011] [Revised: 07/30/2011] [Indexed: 01/21/2023]
Affiliation(s)
- Shunyou Cai
- Key Laboratory of Chemical Genomics, School of Chemical Biology and Biotechnology, Shenzhen Graduate School of Peking University, Shenzhen University Town, Shenzhen 518055, China
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25
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Cai S, Liu Z, Zhang W, Zhao X, Wang DZ. Gold-Catalyzed [3+2] Cycloaddition/Hydrolytic Michael Addition/Retro-Aldol Reactions of Propargylic Esters Tethered to Cyclohexadienones. Angew Chem Int Ed Engl 2011. [DOI: 10.1002/ange.201104028] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
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26
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Wei G, Chalker JM, Cohen T. Synthesis of (−)-α-Kainic Acid via TMSCl-Promoted Pd-Catalyzed Zinc-ene Cyclization of an Allyl Acetate. J Org Chem 2011; 76:7912-7. [DOI: 10.1021/jo201341q] [Citation(s) in RCA: 24] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Guoqing Wei
- Department of Chemistry, University of Pittsburgh, Pittsburgh, Pennsylvania 15260, United States
| | - Justin M. Chalker
- Chemistry Research Laboratory, University of Oxford, Mansfield Road, Oxford OX1 3TA, U.K
| | - Theodore Cohen
- Department of Chemistry, University of Pittsburgh, Pittsburgh, Pennsylvania 15260, United States
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