1
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Shen X, Zhao J, Xi Y, Chen W, Zhou Y, Yang X, Zhang H. Enantioselective Total Synthesis of (+)-Nocardioazine B. J Org Chem 2018; 83:14507-14517. [DOI: 10.1021/acs.joc.8b02329] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Xianfu Shen
- Key Laboratory of Medicinal Chemistry for Natural Resource, Ministry of Education and Yunnan Province, School of Chemical Science and Technology, Yunnan University, Kunming, Yunnan 650091, P.R. China
- Center for Yunnan-Guizhou Plateau Chemical Functional Materials and Pollution Control, Qujing Normal University, Qujing, Yunnan 655011, P.R. China
| | - Jingfeng Zhao
- Key Laboratory of Medicinal Chemistry for Natural Resource, Ministry of Education and Yunnan Province, School of Chemical Science and Technology, Yunnan University, Kunming, Yunnan 650091, P.R. China
| | - Yongkai Xi
- Key Laboratory of Medicinal Chemistry for Natural Resource, Ministry of Education and Yunnan Province, School of Chemical Science and Technology, Yunnan University, Kunming, Yunnan 650091, P.R. China
| | - Wen Chen
- Key Laboratory of Medicinal Chemistry for Natural Resource, Ministry of Education and Yunnan Province, School of Chemical Science and Technology, Yunnan University, Kunming, Yunnan 650091, P.R. China
| | - Yongyun Zhou
- Key Laboratory of Medicinal Chemistry for Natural Resource, Ministry of Education and Yunnan Province, School of Chemical Science and Technology, Yunnan University, Kunming, Yunnan 650091, P.R. China
| | - Xiaodong Yang
- Key Laboratory of Medicinal Chemistry for Natural Resource, Ministry of Education and Yunnan Province, School of Chemical Science and Technology, Yunnan University, Kunming, Yunnan 650091, P.R. China
| | - Hongbin Zhang
- Key Laboratory of Medicinal Chemistry for Natural Resource, Ministry of Education and Yunnan Province, School of Chemical Science and Technology, Yunnan University, Kunming, Yunnan 650091, P.R. China
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2
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Hu X, Chen X, Shao Y, Xie H, Deng Y, Ke Z, Jiang H, Zeng W. Co(III)-Catalyzed Coupling-Cyclization of Aryl C–H Bonds with α-Diazoketones Involving Wolff Rearrangement. ACS Catal 2018. [DOI: 10.1021/acscatal.7b03668] [Citation(s) in RCA: 78] [Impact Index Per Article: 13.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Affiliation(s)
- Xinwei Hu
- Key
Laboratory of Functional Molecular Engineering of Guangdong Province,
School of Chemistry and Chemical Engineering, South China University of Technology, Guangzhou 510641, China
| | - Xun Chen
- Key
Laboratory of Functional Molecular Engineering of Guangdong Province,
School of Chemistry and Chemical Engineering, South China University of Technology, Guangzhou 510641, China
- School
of Pharmacy, Hainan Medical University, Haikou 571199, China
| | - Youxiang Shao
- School
of Materials Science and Engineering, PCFM Lab, Sun Yat-sen University, Guangzhou 510275, China
| | - Haisheng Xie
- Key
Laboratory of Functional Molecular Engineering of Guangdong Province,
School of Chemistry and Chemical Engineering, South China University of Technology, Guangzhou 510641, China
| | - Yuanfu Deng
- Key
Laboratory of Functional Molecular Engineering of Guangdong Province,
School of Chemistry and Chemical Engineering, South China University of Technology, Guangzhou 510641, China
| | - Zhuofeng Ke
- School
of Materials Science and Engineering, PCFM Lab, Sun Yat-sen University, Guangzhou 510275, China
| | - Huanfeng Jiang
- Key
Laboratory of Functional Molecular Engineering of Guangdong Province,
School of Chemistry and Chemical Engineering, South China University of Technology, Guangzhou 510641, China
| | - Wei Zeng
- Key
Laboratory of Functional Molecular Engineering of Guangdong Province,
School of Chemistry and Chemical Engineering, South China University of Technology, Guangzhou 510641, China
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3
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He XH, Yang L, Ji YL, Zhao Q, Yang MC, Huang W, Peng C, Han B. Chemo- and Stereoselective Cross Rauhut-Currier-Type Reaction of Tri-substituted Alkenes Containing Trifluoromethyl Groups. Chemistry 2018; 24:1947-1955. [DOI: 10.1002/chem.201705010] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/21/2017] [Revised: 11/15/2017] [Indexed: 11/06/2022]
Affiliation(s)
- Xiang-Hong He
- State Key Laboratory Breeding Base of Systematic Research; Development and Utilization of Chinese Medicine Resources; School of Pharmacy; Chengdu University of Traditional Chinese Medicine; Chengdu 611137 P. R. China
| | - Lei Yang
- State Key Laboratory Breeding Base of Systematic Research; Development and Utilization of Chinese Medicine Resources; School of Pharmacy; Chengdu University of Traditional Chinese Medicine; Chengdu 611137 P. R. China
| | - Yan-Ling Ji
- State Key Laboratory Breeding Base of Systematic Research; Development and Utilization of Chinese Medicine Resources; School of Pharmacy; Chengdu University of Traditional Chinese Medicine; Chengdu 611137 P. R. China
| | - Qian Zhao
- State Key Laboratory Breeding Base of Systematic Research; Development and Utilization of Chinese Medicine Resources; School of Pharmacy; Chengdu University of Traditional Chinese Medicine; Chengdu 611137 P. R. China
| | - Ming-Cheng Yang
- State Key Laboratory Breeding Base of Systematic Research; Development and Utilization of Chinese Medicine Resources; School of Pharmacy; Chengdu University of Traditional Chinese Medicine; Chengdu 611137 P. R. China
| | - Wei Huang
- State Key Laboratory Breeding Base of Systematic Research; Development and Utilization of Chinese Medicine Resources; School of Pharmacy; Chengdu University of Traditional Chinese Medicine; Chengdu 611137 P. R. China
| | - Cheng Peng
- State Key Laboratory Breeding Base of Systematic Research; Development and Utilization of Chinese Medicine Resources; School of Pharmacy; Chengdu University of Traditional Chinese Medicine; Chengdu 611137 P. R. China
| | - Bo Han
- State Key Laboratory Breeding Base of Systematic Research; Development and Utilization of Chinese Medicine Resources; School of Pharmacy; Chengdu University of Traditional Chinese Medicine; Chengdu 611137 P. R. China
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4
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Ortega-Martínez A, de Lorenzo R, Sansano JM, Nájera C. Palladium-catalyzed allylation and deacylative allylation of 3-acetyl-2-oxindoles with allylic alcohols. Tetrahedron 2018. [DOI: 10.1016/j.tet.2017.11.041] [Citation(s) in RCA: 5] [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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5
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Correia VG, Abreu JC, Barata CAE, Andrade LH. Iron-Catalyzed Synthesis of Oxindoles: Application to the Preparation of Pyrroloindolines. Org Lett 2017; 19:1060-1063. [DOI: 10.1021/acs.orglett.7b00078] [Citation(s) in RCA: 32] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/01/2023]
Affiliation(s)
- Valquírio G. Correia
- Departament of Fundamental
Chemistry, Institute of Chemistry, University of São Paulo, Av. Prof. Lineu Prestes 748, 05508-900, São Paulo, Brazil
| | - Juliana C. Abreu
- Departament of Fundamental
Chemistry, Institute of Chemistry, University of São Paulo, Av. Prof. Lineu Prestes 748, 05508-900, São Paulo, Brazil
| | - Caio A. E. Barata
- Departament of Fundamental
Chemistry, Institute of Chemistry, University of São Paulo, Av. Prof. Lineu Prestes 748, 05508-900, São Paulo, Brazil
| | - Leandro H. Andrade
- Departament of Fundamental
Chemistry, Institute of Chemistry, University of São Paulo, Av. Prof. Lineu Prestes 748, 05508-900, São Paulo, Brazil
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6
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Tokuyama H, Sato S, Hirayama A, Adachi T, Kawauchi D, Ueda H. AgNTf2-Mediated Arylation of Bromopyrroloindolines. HETEROCYCLES 2017. [DOI: 10.3987/com-17-13777] [Citation(s) in RCA: 3] [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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7
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Reddy AGK, Krishna J, Satyanarayana G. One-pot Jeffery-Heck and Reduction Sequence: Synthesis of Alcohols and Applied to the Synthesis of Flavan Natural Products. ChemistrySelect 2016. [DOI: 10.1002/slct.201600100] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
Affiliation(s)
- Alavala Gopi Krishna Reddy
- Department of Chemistry; Indian Institute of Technology; Hyderabad; Kandi - 502 285, Sangareddy, Telangana INDIA
| | - Jonnada Krishna
- Department of Chemistry; Indian Institute of Technology; Hyderabad; Kandi - 502 285, Sangareddy, Telangana INDIA
| | - Gedu Satyanarayana
- Department of Chemistry; Indian Institute of Technology; Hyderabad; Kandi - 502 285, Sangareddy, Telangana INDIA
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8
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Shen X, Zhou Y, Xi Y, Zhao J, Zhang H. Total Synthesis of Dimeric HPI Alkaloids. NATURAL PRODUCTS AND BIOPROSPECTING 2016; 6:117-39. [PMID: 26969313 PMCID: PMC4805652 DOI: 10.1007/s13659-016-0092-8] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/13/2016] [Accepted: 02/19/2016] [Indexed: 05/17/2023]
Abstract
In this paper, we report a full account of the synthesis of dimeric hexahydropyrroloindole alkaloids and its analogues. The key feature of our new strategy is the novel catalytic copper (10 %) mediated intramolecular arylations of o-haloanilides followed by intermolecular oxidative dimerization of the resulting oxindoles in one pot. This sequential reaction leads to the key intermediates for the synthesis of (+)-chimonanthine, (+)-folicanthine, (-)-calycanthine and (-)-ditryptophenaline. In the presence of catalytic amount of cuprous iodide (10 %), an intramolecular arylation of o-haloanilides followed by an intermolecular oxidative dimerization of the resulting oxindoles leads to a common intermediate for the synthesis of (+)-chimonanthine, (+)-folicanthine and (-)-calycanthine. Based on this cascade sequence, we also developed a flexible strategy towards the asymmetric syntheses of dimeric HPI alkaloids (-)-ditryptophenaline and its analogues.
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Affiliation(s)
- Xianfu Shen
- Key Laboratory of Medicinal Chemistry for Natural Resource (Yunnan University), Ministry of Education, School of Chemical Science and Technology, Yunnan University, Kunming, 650091, People's Republic of China
| | - Yongyun Zhou
- Key Laboratory of Medicinal Chemistry for Natural Resource (Yunnan University), Ministry of Education, School of Chemical Science and Technology, Yunnan University, Kunming, 650091, People's Republic of China
| | - Yongkai Xi
- Key Laboratory of Medicinal Chemistry for Natural Resource (Yunnan University), Ministry of Education, School of Chemical Science and Technology, Yunnan University, Kunming, 650091, People's Republic of China
| | - Jingfeng Zhao
- Key Laboratory of Medicinal Chemistry for Natural Resource (Yunnan University), Ministry of Education, School of Chemical Science and Technology, Yunnan University, Kunming, 650091, People's Republic of China
| | - Hongbin Zhang
- Key Laboratory of Medicinal Chemistry for Natural Resource (Yunnan University), Ministry of Education, School of Chemical Science and Technology, Yunnan University, Kunming, 650091, People's Republic of China.
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9
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Loach RP, Fenton OS, Movassaghi M. Concise Total Synthesis of (+)-Asperazine, (+)-Pestalazine A, and (+)-iso-Pestalazine A. Structure Revision of (+)-Pestalazine A. J Am Chem Soc 2016; 138:1057-64. [PMID: 26726924 PMCID: PMC4908971 DOI: 10.1021/jacs.5b12392] [Citation(s) in RCA: 45] [Impact Index Per Article: 5.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
The concise, enantioselective total syntheses of (+)-asperazine (1), (+)-iso-pestalazine A (2), and (+)-pestalazine A (3) have been achieved by the development of a late-stage C3-C8' Friedel-Crafts union of polycyclic diketopiperazines. Our modular strategy enables the union of complex polycyclic diketopiperazines in virtually their final forms, thus providing rapid and highly convergent assembly at the challenging quaternary stereocenter of these dimeric alkaloids. The significance of this carbon-carbon bond formation can be gauged by the manifold constraints that were efficiently overcome, namely the substantial steric crowding at both reactive sites, the nucleophilic addition of C8' over N1' to the C3 carbocation, and the multitude of reactivity posed by the use of complex diketopiperazine fragments in the coupling event. The success of the indoline π-nucleophile that evolved through our studies is notable given the paucity of competing reaction pathways observed in the presence of the highly reactive C3 carbocation generated. This first total synthesis of (+)-pestalazine A also allowed us to revise the molecular structure for this natural alkaloid.
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Affiliation(s)
- Richard P. Loach
- Department of Chemistry, Massachusetts Institute of Technology, Cambridge, Massachusetts 02139, United States
| | - Owen S. Fenton
- Department of Chemistry, Massachusetts Institute of Technology, Cambridge, Massachusetts 02139, United States
| | - Mohammad Movassaghi
- Department of Chemistry, Massachusetts Institute of Technology, Cambridge, Massachusetts 02139, United States
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10
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Kumarswamyreddy N, Prakash M, Jayakumar S, Kesavan V. Assembly of 3-allyl-3-ethynyl-oxindole motifs via palladium(ii)-catalyzed quaternary allylation of 3-ethynyl-3-OBoc-oxindoles. RSC Adv 2015. [DOI: 10.1039/c5ra07955a] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/29/2022] Open
Abstract
A simple and efficient strategy for the synthesis of 3-allyl-3-ethynyl-oxindoles using Pd(ii) catalyst has been developed. Applications of these intermediates were realized by synthesizing structurally diverse carbocyclic spirooxindoles.
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Affiliation(s)
- Nandarapu Kumarswamyreddy
- Chemical Biology Laboratory
- Department of Biotechnology
- Bhupat and Jyoti Mehta School of Biosciences
- Indian Institute of Technology Madras
- Chennai-600036
| | - Muthuraj Prakash
- Chemical Biology Laboratory
- Department of Biotechnology
- Bhupat and Jyoti Mehta School of Biosciences
- Indian Institute of Technology Madras
- Chennai-600036
| | - Samydurai Jayakumar
- Chemical Biology Laboratory
- Department of Biotechnology
- Bhupat and Jyoti Mehta School of Biosciences
- Indian Institute of Technology Madras
- Chennai-600036
| | - Venkitasamy Kesavan
- Chemical Biology Laboratory
- Department of Biotechnology
- Bhupat and Jyoti Mehta School of Biosciences
- Indian Institute of Technology Madras
- Chennai-600036
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11
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Shen X, Zhou Y, Xi Y, Zhao J, Zhang H. Copper catalyzed sequential arylation−oxidative dimerization of o-haloanilides: synthesis of dimeric HPI alkaloids. Chem Commun (Camb) 2015; 51:14873-6. [DOI: 10.1039/c5cc05378a] [Citation(s) in RCA: 24] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/27/2022]
Abstract
A copper catalyzed sequential arylation−oxidative dimerization reaction was developed as the key step for the synthesis of hexahydropyrroloindole alkaloids.
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Affiliation(s)
- Xianfu Shen
- Key Laboratory of Medicinal Chemistry for Natural Resource (Yunnan University)
- Ministry of Education
- School of Chemical Science and Technology
- Yunnan University
- Kunming, 650091
| | - Yongyun Zhou
- Key Laboratory of Medicinal Chemistry for Natural Resource (Yunnan University)
- Ministry of Education
- School of Chemical Science and Technology
- Yunnan University
- Kunming, 650091
| | - Yongkai Xi
- Key Laboratory of Medicinal Chemistry for Natural Resource (Yunnan University)
- Ministry of Education
- School of Chemical Science and Technology
- Yunnan University
- Kunming, 650091
| | - Jingfeng Zhao
- Key Laboratory of Medicinal Chemistry for Natural Resource (Yunnan University)
- Ministry of Education
- School of Chemical Science and Technology
- Yunnan University
- Kunming, 650091
| | - Hongbin Zhang
- Key Laboratory of Medicinal Chemistry for Natural Resource (Yunnan University)
- Ministry of Education
- School of Chemical Science and Technology
- Yunnan University
- Kunming, 650091
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12
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Krishna J, Niharika P, Satyanarayana G. Sequential one-pot approach for the synthesis of functionalized phthalans via Heck-reduction–cyclization (HRC) reactions. RSC Adv 2015. [DOI: 10.1039/c5ra00955c] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022] Open
Abstract
An efficient and practical method is described for the direct synthesis of 1,3-dihydroisobenzofurans, an important structural motif present in biologically active natural or synthetic compounds.
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Affiliation(s)
- Jonnada Krishna
- Department of Chemistry
- Indian Institute of Technology (IIT), Hyderabad
- Ordnance Factory Estate Campus
- Medak District
- India
| | - Pedireddi Niharika
- Department of Chemistry
- Indian Institute of Technology (IIT), Hyderabad
- Ordnance Factory Estate Campus
- Medak District
- India
| | - Gedu Satyanarayana
- Department of Chemistry
- Indian Institute of Technology (IIT), Hyderabad
- Ordnance Factory Estate Campus
- Medak District
- India
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13
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Sivanandan ST, Shaji A, Ibnusaud I, Seechurn CCCJ, Colacot TJ. Palladium-Catalyzed α-Arylation Reactions in Total Synthesis. European J Org Chem 2014. [DOI: 10.1002/ejoc.201403301] [Citation(s) in RCA: 85] [Impact Index Per Article: 8.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
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14
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Vijay Kumar S, Saraiah B, Parameshwarappa G, Ila H, Verma GK. Synthesis of N-Functionalized/NH-Multisubstituted Indoles, Thienopyrroles, Pyrroloindoles, and Pyrazolopyrroles via Sequential One-Pot Base-Mediated and Copper-Catalyzed Inter- and Intramolecular Amination of 2-[2-Bromo(het)aryl]-3-(het)aryl-3-(methylthio)acrylonitriles. J Org Chem 2014; 79:7961-78. [DOI: 10.1021/jo501114a] [Citation(s) in RCA: 26] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/14/2023]
Affiliation(s)
- S. Vijay Kumar
- New
Chemistry Unit, Jawaharlal Nehru Centre for Advanced Scientific Research, Jakkur, Bangalore 560064, India
| | - B. Saraiah
- New
Chemistry Unit, Jawaharlal Nehru Centre for Advanced Scientific Research, Jakkur, Bangalore 560064, India
| | - G. Parameshwarappa
- New
Chemistry Unit, Jawaharlal Nehru Centre for Advanced Scientific Research, Jakkur, Bangalore 560064, India
| | - H. Ila
- New
Chemistry Unit, Jawaharlal Nehru Centre for Advanced Scientific Research, Jakkur, Bangalore 560064, India
| | - Girijesh K. Verma
- Department
of Chemistry, Banaras Hindu University, Varanasi 221005, India
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15
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Sequential one-pot method for oxy-Michael addition, Heck coupling, and degradation followed by condensation: facile synthesis of 2-benzoxepin-3(1H)-ones. Tetrahedron 2013. [DOI: 10.1016/j.tet.2013.09.050] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
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16
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Ishikura M, Abe T, Choshi T, Hibino S. Simple indole alkaloids and those with a non-rearranged monoterpenoid unit. Nat Prod Rep 2013; 30:694-752. [DOI: 10.1039/c3np20118j] [Citation(s) in RCA: 269] [Impact Index Per Article: 24.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/01/2023]
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17
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Chiou WH, Kao CL, Tsai JC, Chang YM. Domino Rh-catalyzed hydroformylation–double cyclization of o-amino cinnamyl derivatives: applications to the formal total syntheses of physostigmine and physovenine. Chem Commun (Camb) 2013; 49:8232-4. [DOI: 10.1039/c3cc43257b] [Citation(s) in RCA: 21] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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18
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Gopi Krishna Reddy A, Krishna J, Satyanarayana G. An efficient sequential one-pot base mediated C–O and Pd-mediated C–C bond formation: synthesis of functionalized cinnamates and isochromenes. Tetrahedron Lett 2012. [DOI: 10.1016/j.tetlet.2012.08.023] [Citation(s) in RCA: 21] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
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19
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Reddy AGK, Satyanarayana G. A simple efficient sequential one-pot intermolecular aza-Michael addition and intramolecular Buchwald–Hartwig α-arylation of amines: synthesis of functionalized tetrahydroisoquinolines. Tetrahedron 2012. [DOI: 10.1016/j.tet.2012.06.106] [Citation(s) in RCA: 26] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
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20
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Zhou Y, Xi Y, Zhao J, Sheng X, Zhang S, Zhang H. Copper-Catalyzed Arylation of o-Bromoanilides: Highly Flexible Synthesis of Hexahydropyrroloindole Alkaloids. Org Lett 2012; 14:3116-9. [DOI: 10.1021/ol3012056] [Citation(s) in RCA: 35] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Yongyun Zhou
- Key Laboratory of Medicinal Chemistry for Natural Resource (Yunnan University), Ministry of Education, School of Chemical Science and Technology, Yunnan University, Kunming 650091, P. R. China
| | - Yongkai Xi
- Key Laboratory of Medicinal Chemistry for Natural Resource (Yunnan University), Ministry of Education, School of Chemical Science and Technology, Yunnan University, Kunming 650091, P. R. China
| | - Jingfeng Zhao
- Key Laboratory of Medicinal Chemistry for Natural Resource (Yunnan University), Ministry of Education, School of Chemical Science and Technology, Yunnan University, Kunming 650091, P. R. China
| | - Xianfu Sheng
- Key Laboratory of Medicinal Chemistry for Natural Resource (Yunnan University), Ministry of Education, School of Chemical Science and Technology, Yunnan University, Kunming 650091, P. R. China
| | - Shuqin Zhang
- Key Laboratory of Medicinal Chemistry for Natural Resource (Yunnan University), Ministry of Education, School of Chemical Science and Technology, Yunnan University, Kunming 650091, P. R. China
| | - Hongbin Zhang
- Key Laboratory of Medicinal Chemistry for Natural Resource (Yunnan University), Ministry of Education, School of Chemical Science and Technology, Yunnan University, Kunming 650091, P. R. China
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21
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Shishido K, Ozawa T, Kanematsu M, Yokoe H, Yoshida M. Synthesis of (±)-Esermethole via an Intramolecular Carbamoylketene-Alkene [2+2] Cycloaddition. HETEROCYCLES 2012. [DOI: 10.3987/com-12-12599] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
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