1
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Ren JW, Zhang HX, Han CS, Zhang QH, Di RD, Sun JH. Umpolung Strategy for the One-Pot Synthesis of Highly Steric Bispirooxindoles via the l-Amino Acid Ester-Promoted In Situ Reduction/Nucleophilic Addition/Cyclization Cascade Reaction. J Org Chem 2024. [PMID: 39138971 DOI: 10.1021/acs.joc.4c00965] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 08/15/2024]
Abstract
On the basis of a novel umpolung strategy, an efficient l-amino acid ester-mediated in situ reduction of 2-(2-oxoindolin-3-ylidene)malononitrile and sequential nucleophilic addition/cyclization cascade reaction is reported. Various densely substituted cyclopentene bispirooxindoles and dihydrofuran bispirooxindoles with two quaternary spirocenters were constructed in high yields (≤93%) with excellent diastereoselectivities (>20:1 dr). The method has advantages of readily available starting materials, mild reaction conditions, a one-pot process, a metal-free biomimetic reducing agent, a wide substrate scope, and operational simplicity (single filtration without column chromatography).
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Affiliation(s)
- Ji-Wei Ren
- College of Chemistry and Chemical Engineering, Taishan University, Tai'an, Shandong 271000, P. R. China
| | - Huai-Xin Zhang
- College of Chemistry and Chemical Engineering, Taishan University, Tai'an, Shandong 271000, P. R. China
| | - Cheng-Shuai Han
- College of Chemistry and Chemical Engineering, Taishan University, Tai'an, Shandong 271000, P. R. China
| | - Qing-Hao Zhang
- College of Chemistry and Chemical Engineering, Taishan University, Tai'an, Shandong 271000, P. R. China
| | - Rui-Dong Di
- College of Chemistry and Chemical Engineering, Taishan University, Tai'an, Shandong 271000, P. R. China
| | - Jing-Hui Sun
- College of Chemistry and Chemical Engineering, Taishan University, Tai'an, Shandong 271000, P. R. China
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2
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Alshammari MB, Aly AA, Ahmad A, Brown AB, Mohamed AH. Recent synthetic strategies of spiro-azetidin-2-one, -pyrrolidine, -indol(one) and -pyran derivatives-a review. RSC Adv 2023; 13:32786-32823. [PMID: 37942448 PMCID: PMC10628897 DOI: 10.1039/d3ra06054c] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/05/2023] [Accepted: 10/24/2023] [Indexed: 11/10/2023] Open
Abstract
Spiro-heterocycles have received special attention in medicinal chemistry because of their promising biological activity. Over the years, many synthetic methodologies have been established for the construction of spirocyclic compounds. Spiro heterocycles such as spiro-azetidin-2-one, -pyrrolidine, -indol(one) and -pyran derivatives have been found to exhibit diversified biological and pharmacological activity in addition to their therapeutic properties. In view of these facts, we decided in this review to present representative synthetic approaches of the aforementioned spiro heterocycles, especially in the past 20 years.
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Affiliation(s)
- Mohammed B Alshammari
- Chemistry Department, College of Sciences and Humanities, Prince Sattam Bin Abdulaziz University Al-Kharij Saudi Arabia
| | - Ashraf A Aly
- Chemistry Department, Faculty of Science, Minia University 61519 El-Minia Egypt
| | - Akil Ahmad
- Chemistry Department, College of Sciences and Humanities, Prince Sattam Bin Abdulaziz University Al-Kharij Saudi Arabia
| | - Alan B Brown
- Department of Chemistry and Chemical Engineering, Florida Institute of Technology Melbourne FL 32901 USA
| | - Asmaa H Mohamed
- Chemistry Department, Faculty of Science, Minia University 61519 El-Minia Egypt
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3
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Thakur A, Verma M, Bharti R, Sharma R. Oxazole and isoxazole: From one-pot synthesis to medical applications. Tetrahedron 2022. [DOI: 10.1016/j.tet.2022.132813] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/05/2023]
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4
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Li TH, Du DM. Asymmetric synthesis of isoxazole and trifluoromethyl-containing 3,2'-pyrrolidinyl dispirooxindoles via squaramide-catalysed [3 + 2] cycloaddition reactions. Org Biomol Chem 2022; 20:817-823. [PMID: 35005763 DOI: 10.1039/d1ob02350k] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/26/2022]
Abstract
A highly efficient squaramide-catalysed asymmetric domino Michael/Mannich [3 + 2] cycloaddition of 3-methyl-4-nitro-5-isatylidenyl-isoxazoles and N-2,2,2-trifluoroethylisatin ketimines was developed. A new class of complex and diverse-skeleton isoxazole and trifluoromethyl-containing 3,2'-pyrrolidinyl dispirooxindoles bearing four contiguous stereogenic centers including two adjacent spiro quaternary stereocentres were obtained in good to excellent yields (up to 99%) with excellent diastereoselectivities (>20 : 1 dr, in all cases) and enantioselectivities (up to 96% ee). Moreover, the potential utilities of the protocol have been demonstrated by gram-scale synthesis and further transformation experiments.
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Affiliation(s)
- Tong-Hao Li
- School of Chemistry and Chemical Engineering, Beijing Institute of Technology, No.5 Zhongguancun South Street, Beijing 100081, People's Republic of China.
| | - Da-Ming Du
- School of Chemistry and Chemical Engineering, Beijing Institute of Technology, No.5 Zhongguancun South Street, Beijing 100081, People's Republic of China.
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5
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Yin ZG, Liu XW, Chen L, Liu XL, Pan BW, Zhou Y. Regio- and stereoselective synthesis and evaluation of densely functionalized bispiro[oxindole-isoxazole-indandione] hybrids as anticancer agents. NEW J CHEM 2022. [DOI: 10.1039/d2nj03349f] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
This is the combination of three key pharmacophores through bispiro quaternary carbon atoms and evaluation of their anticancer activity.
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Affiliation(s)
- Zhi-Gang Yin
- Key Laboratory of Plant Resource Conservation and Germplasm Innovation in Mountainous Region (Ministry of Education), Collaborative Innovation Center for Mountain Ecology & Agro-Bioengineering (CICMEAB), Institute of Agro-Bioengineering/College of Life Sciences, Guizhou University, Guiyang 550025, China
| | - Xiong-Wei Liu
- College of Pharmaceutical Sciences, Guizhou University of Traditional Chinese Medicine, Guiyang, 550025, China
| | - Lin Chen
- Key Laboratory of Plant Resource Conservation and Germplasm Innovation in Mountainous Region (Ministry of Education), Collaborative Innovation Center for Mountain Ecology & Agro-Bioengineering (CICMEAB), Institute of Agro-Bioengineering/College of Life Sciences, Guizhou University, Guiyang 550025, China
| | - Xiong-Li Liu
- Key Laboratory of Plant Resource Conservation and Germplasm Innovation in Mountainous Region (Ministry of Education), Collaborative Innovation Center for Mountain Ecology & Agro-Bioengineering (CICMEAB), Institute of Agro-Bioengineering/College of Life Sciences, Guizhou University, Guiyang 550025, China
| | - Bo-Wen Pan
- College of Pharmaceutical Sciences, Guizhou University of Traditional Chinese Medicine, Guiyang, 550025, China
| | - Ying Zhou
- College of Pharmaceutical Sciences, Guizhou University of Traditional Chinese Medicine, Guiyang, 550025, China
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6
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Tian X, Zhang Y, Ren W, Wang Y. Synthesis of functionalized 3,2′-pyrrolidinyl spirooxindoles via domino 1,6-addition/annulation reactions of para-quinone methides and 3-chlorooxindoles. Org Chem Front 2022. [DOI: 10.1039/d1qo01605a] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
Abstract
A highly efficient diastereoselective [4 + 1] cycloaddition of ortho-tosylaminophenyl-substituted p-QMs with 3-chlorooxindoles has been developed to afford 3,2′-pyrrolidinyl spirooxindoles.
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Affiliation(s)
- Xiaochen Tian
- Molecular Synthesis Center & Key Laboratory of Marine Drugs, Chinese Ministry of Education, School of Medicine and Pharmacy, Ocean University of China, 5 Yushan Road, Qingdao 266003, China
| | - Yongxing Zhang
- Molecular Synthesis Center & Key Laboratory of Marine Drugs, Chinese Ministry of Education, School of Medicine and Pharmacy, Ocean University of China, 5 Yushan Road, Qingdao 266003, China
| | - Weiwu Ren
- Molecular Synthesis Center & Key Laboratory of Marine Drugs, Chinese Ministry of Education, School of Medicine and Pharmacy, Ocean University of China, 5 Yushan Road, Qingdao 266003, China
- Laboratory for Marine Drugs and Bioproducts, Qingdao National Laboratory for Marine Science and Technology (QNLM), Qingdao 266237, China
| | - Yang Wang
- Molecular Synthesis Center & Key Laboratory of Marine Drugs, Chinese Ministry of Education, School of Medicine and Pharmacy, Ocean University of China, 5 Yushan Road, Qingdao 266003, China
- Laboratory for Marine Drugs and Bioproducts, Qingdao National Laboratory for Marine Science and Technology (QNLM), Qingdao 266237, China
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7
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Saeed R, Sakla AP, Shankaraiah N. An update on the progress of cycloaddition reactions of 3-methyleneindolinones in the past decade: versatile approaches to spirooxindoles. Org Biomol Chem 2021; 19:7768-7791. [PMID: 34549231 DOI: 10.1039/d1ob01176f] [Citation(s) in RCA: 18] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
Abstract
Cycloaddition reactions are of great interest due to their potential and rapid construction of optically enriched spiro-cyclic products. 3-Methyleneindolinones have been proven to be a valuable precursor in cycloaddition reactions for the construction of diverse 3,3'-spirocyclic oxindoles. Their versatile reactivity has provided a new forum for the development of a variety of building blocks and synthetic compounds, including bioactive molecules. Herein, significant accomplishments in the cycloaddition reactions of 3-methyleneindolinones for the synthesis of spirooxindoles have been summarised and elaborated. The review is outlined according to the type of cycloaddition such as [2 + 1], [2 + 2], [3 + 2], [4 + 2] and [5 + 2] cycloaddition reactions.
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Affiliation(s)
- Ruqaiya Saeed
- Department of Medicinal Chemistry, National Institute of Pharmaceutical Education and Research (NIPER), Hyderabad-500037, India.
| | - Akash P Sakla
- Department of Medicinal Chemistry, National Institute of Pharmaceutical Education and Research (NIPER), Hyderabad-500037, India.
| | - Nagula Shankaraiah
- Department of Medicinal Chemistry, National Institute of Pharmaceutical Education and Research (NIPER), Hyderabad-500037, India.
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8
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Nagaraju S, Sathish K, Kashinath D. Applications of 3,5‐Dialkyl‐4‐nitroisoxazoles and Their Derivatives in Organic Synthesis
#. ChemistrySelect 2021. [DOI: 10.1002/slct.202101719] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Affiliation(s)
- Sakkani Nagaraju
- Department of Chemistry National Institute of Technology Warangal-506 004 India 2677
| | - Kota Sathish
- Department of Chemistry National Institute of Technology Warangal-506 004 India 2677
| | - Dhurke Kashinath
- Department of Chemistry National Institute of Technology Warangal-506 004 India 2677
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9
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Shen MH, Li C, Xu QS, Guo B, Wang R, Liu X, Xu HD, Xu D. Allylation and alkylation of oxindoleketimines via imine umpolung strategy. CHINESE CHEM LETT 2021. [DOI: 10.1016/j.cclet.2021.02.026] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
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10
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Yang Y, Wang X, Ye X, Wang B, Bao X, Wang H. Advances of α-activated cyclic isothiocyanate for the enantioselective construction of spirocycles. Org Biomol Chem 2021; 19:4610-4621. [PMID: 33949598 DOI: 10.1039/d1ob00564b] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/23/2023]
Abstract
The efficient and enantioselective synthesis of pharmaceutically important spirocycles has attracted the focus of organic and medicinal chemists. In this context, with the excellent reactivity of α-activated isothiocyanate as formal 1,3-dipoles in the (3 + 2) cyclization process, the cyclic isothiocyanates featuring important pharmacophores, such as oxindole, pyrazolone, and indanone moieties, have emerged as powerful precursors to access a variety of spirocycles with highly structural diversities. In addition, the facile transformations of these spirocycles have shown potential applications in drug design. This review will cover the recent advances of α-activated cyclic isothiocyanates in the enantioselective construction of spirocycles since 2015, and the applications of corresponding products in organic and medicinal chemistry.
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Affiliation(s)
- Yang Yang
- College of Pharmaceutical Science & Collaborative Innovation Centre of Yangtze River Delta Region Green Pharmaceuticals, Zhejiang University of Technology, Hangzhou 310014, China.
| | - Xingyue Wang
- College of Pharmaceutical Science & Collaborative Innovation Centre of Yangtze River Delta Region Green Pharmaceuticals, Zhejiang University of Technology, Hangzhou 310014, China.
| | - Xinyi Ye
- College of Pharmaceutical Science & Collaborative Innovation Centre of Yangtze River Delta Region Green Pharmaceuticals, Zhejiang University of Technology, Hangzhou 310014, China.
| | - Baomin Wang
- State Key Laboratory of Fine Chemicals, School of Chemical Engineering, Dalian University of Technology, Dalian 112024, China
| | - Xiaoze Bao
- College of Pharmaceutical Science & Collaborative Innovation Centre of Yangtze River Delta Region Green Pharmaceuticals, Zhejiang University of Technology, Hangzhou 310014, China.
| | - Hong Wang
- College of Pharmaceutical Science & Collaborative Innovation Centre of Yangtze River Delta Region Green Pharmaceuticals, Zhejiang University of Technology, Hangzhou 310014, China.
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11
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Laviós A, Sanz‐Marco A, Vila C, Blay G, Pedro JR. Asymmetric Organocatalytic Synthesis of
aza
‐Spirocyclic Compounds from Isothiocyanates and Isocyanides. European J Org Chem 2021. [DOI: 10.1002/ejoc.202100232] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022]
Affiliation(s)
- Adrián Laviós
- Departament de Química Orgànica-Facultat de Química Universitat de València C/ Dr. Moliner 50 46100 Burjassot (València) Spain
| | - Amparo Sanz‐Marco
- Departament de Química Orgànica-Facultat de Química Universitat de València C/ Dr. Moliner 50 46100 Burjassot (València) Spain
| | - Carlos Vila
- Departament de Química Orgànica-Facultat de Química Universitat de València C/ Dr. Moliner 50 46100 Burjassot (València) Spain
| | - Gonzalo Blay
- Departament de Química Orgànica-Facultat de Química Universitat de València C/ Dr. Moliner 50 46100 Burjassot (València) Spain
| | - José R. Pedro
- Departament de Química Orgànica-Facultat de Química Universitat de València C/ Dr. Moliner 50 46100 Burjassot (València) Spain
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12
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Wang Y, Cobo AA, Franz AK. Recent advances in organocatalytic asymmetric multicomponent cascade reactions for enantioselective synthesis of spirooxindoles. Org Chem Front 2021. [DOI: 10.1039/d1qo00220a] [Citation(s) in RCA: 47] [Impact Index Per Article: 15.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Abstract
Catalytic asymmetric MCCRs for enantioselective synthesis of spirooxindoles by using chiral phosphoric acids, amines, bifunctional thiourea/squaramides and metal-based reagents as catalysts.
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Affiliation(s)
- Yongchao Wang
- Colleage of Vocational and Technical Education
- Yunnan Normal University
- Kunming 650092
- P. R. China
| | - Angel A. Cobo
- Department of Chemistry
- University of California
- Davis
- USA
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13
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Abstract
This review summaries recent synthetic developments towards spirocyclic oxindoles and applications as valuable medicinal and synthetic targets.
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Affiliation(s)
- Alexander J. Boddy
- Department of Chemistry
- Imperial College London
- Molecular Sciences Research Hub
- London W12 0BZ
- UK
| | - James A. Bull
- Department of Chemistry
- Imperial College London
- Molecular Sciences Research Hub
- London W12 0BZ
- UK
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14
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Gataullin RR. Advances in the Synthesis of Benzo‐Fused Spiro Nitrogen Heterocycles: New Approaches and Modification of Old Strategies. Helv Chim Acta 2020. [DOI: 10.1002/hlca.202000137] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
Affiliation(s)
- Rail R. Gataullin
- Ufa Federal Research Centre Ufa Institute of Chemistry of the Russian Academy of Sciences Prospect Oktyabrya, 71 Ufa 450054 Russian Federation
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15
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Gui H, Meng Z, Xiao Z, Yang Z, Wei Y, Shi M. Stereo‐ and Regioselective Construction of Spirooxindoles Having Continuous Spiral Rings via Asymmetric [3+2] Cyclization of 3‐Isothiocyanato Oxindoles with Thioaurone Derivatives. European J Org Chem 2020. [DOI: 10.1002/ejoc.202001146] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
Affiliation(s)
- Hou‐Ze Gui
- State Key Laboratory of Organometallic Chemistry Center for Excellence in Molecular Synthesis University of Chinese Academy of Sciences 345 Lingling Road 200032 Shanghai China
| | - Zhe Meng
- State Key Laboratory of Organometallic Chemistry Center for Excellence in Molecular Synthesis University of Chinese Academy of Sciences 345 Lingling Road 200032 Shanghai China
| | - Zhan‐Shuai Xiao
- State Key Laboratory of Organometallic Chemistry Center for Excellence in Molecular Synthesis University of Chinese Academy of Sciences 345 Lingling Road 200032 Shanghai China
| | - Ze‐Ren Yang
- Key Laboratory for Advanced Materials and Institute of Fine Chemicals School of Chemistry & Molecular Engineering East China University of Science and Technology 130 Meilong Road 200237 Shanghai China
| | - Yin Wei
- Key Laboratory for Advanced Materials and Institute of Fine Chemicals School of Chemistry & Molecular Engineering East China University of Science and Technology 130 Meilong Road 200237 Shanghai China
| | - Min Shi
- State Key Laboratory of Organometallic Chemistry Center for Excellence in Molecular Synthesis University of Chinese Academy of Sciences 345 Lingling Road 200032 Shanghai China
- Key Laboratory for Advanced Materials and Institute of Fine Chemicals School of Chemistry & Molecular Engineering East China University of Science and Technology 130 Meilong Road 200237 Shanghai China
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16
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Abstract
Arylidene-Δ2-pyrrolin-4-ones undergo organocatalyzed double spirocyclization with 3-isothiocianato oxindoles in a domino 1,4/1,2-addition sequence. The products contain three contiguous stereocenters (ee up to 98%, dr up to 99:1, 12 examples). The absolute configuration of the major diastereomer was determined by single crystal X-ray analysis. Along with heterocyclic Michael acceptors based on oxazolone, isoxazolone, thiazolidinone, pyrazolone, and pyrimidinedione, the reported results display the applicability of unsaturated Δ2-pyrrolin-4-ones (pyrrolones) for the organocatalyzed construction of 3D-rich pyrrolone-containing heterocycles.
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17
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Li Z, Feng TT, Zhou Y, Tian YP, Zhou W, Liu XL. [1,5]-Proton transfer as a key strategy: Rapid access to natural product-inspired library of 3-pyrazolyl isoflavones. Tetrahedron 2020. [DOI: 10.1016/j.tet.2020.131436] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/26/2022]
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18
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Sansinenea E, Martínez EF, Ortiz A. Organocatalytic Synthesis of Chiral Spirooxindoles with Quaternary Stereogenic Centers. European J Org Chem 2020. [DOI: 10.1002/ejoc.202000470] [Citation(s) in RCA: 24] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Affiliation(s)
- Estibaliz Sansinenea
- Facultad de Ciencias Químicas Benemérita Universidad Autónoma de Puebla Puebla México
| | | | - Aurelio Ortiz
- Facultad de Ciencias Químicas Benemérita Universidad Autónoma de Puebla Puebla México
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Gong Y, Xu SW, Liu XW, Li Z, Liu XL, Yao Z, Zhou Y. Thermal-mediated [1,3]-hydrogen transfer as the key step: access to oxindole-chromone hybrid collection with structural diversity. Org Biomol Chem 2019; 17:9567-9572. [PMID: 31686070 DOI: 10.1039/c9ob02193k] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Inspired by the chemistry and biology of chromone and oxindole derivatives, herein we report the first example of thermal-mediated [1,3]-hydrogen transfer as the key step for the efficient synthesis of oxindole-chromone hybrid collections 2, which avoids additional catalyst and solvent conditions. All the oxindole-chromones 2 are smoothly obtained in >99% yields in all cases, avoiding column chromatography purification. In particular, the products 2 can act as potential synthons for further elaboration in structural diversity, which might be valuable in organic and medicinal chemistry.
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Affiliation(s)
- Yi Gong
- College of Pharmaceutical Sciences, Guizhou University of Traditional Chinese Medicine, Guiyang, Guizhou 550025, P. R. China. and Guizhou Engineering Center for Innovative Traditional Chinese Medicine and Ethnic Medicine, Guizhou University, Guiyang, Guizhou 550025, P. R. China
| | - Sheng-Wen Xu
- College of Pharmaceutical Sciences, Guizhou University of Traditional Chinese Medicine, Guiyang, Guizhou 550025, P. R. China.
| | - Xiong-Wei Liu
- College of Pharmaceutical Sciences, Guizhou University of Traditional Chinese Medicine, Guiyang, Guizhou 550025, P. R. China.
| | - Zheng Li
- College of Pharmaceutical Sciences, Guizhou University of Traditional Chinese Medicine, Guiyang, Guizhou 550025, P. R. China.
| | - Xiong-Li Liu
- College of Pharmaceutical Sciences, Guizhou University of Traditional Chinese Medicine, Guiyang, Guizhou 550025, P. R. China. and Guizhou Engineering Center for Innovative Traditional Chinese Medicine and Ethnic Medicine, Guizhou University, Guiyang, Guizhou 550025, P. R. China
| | - Zhen Yao
- College of Pharmaceutical Sciences, Guizhou University of Traditional Chinese Medicine, Guiyang, Guizhou 550025, P. R. China. and Guizhou Engineering Center for Innovative Traditional Chinese Medicine and Ethnic Medicine, Guizhou University, Guiyang, Guizhou 550025, P. R. China
| | - Ying Zhou
- College of Pharmaceutical Sciences, Guizhou University of Traditional Chinese Medicine, Guiyang, Guizhou 550025, P. R. China.
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20
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Xu S, Liu X, Zuo X, Zhou G, Gong Y, Liu X, Zhou Y. Oxindole‐chromones C3 Synthons Directed Stereocontrolled Construction of Five Contiguous Stereocenters on Spiro[tetrahydrocyclopenta[b]chromanone‐oxindole]s. Adv Synth Catal 2019. [DOI: 10.1002/adsc.201901091] [Citation(s) in RCA: 19] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Affiliation(s)
- Sheng‐Wen Xu
- Guizhou Engineering Center for Innovative Traditional Chinese Medicine and Ethnic MedicineGuizhou University Guiyang 550025 People's Republic of China
| | - Xiong‐Wei Liu
- College of Pharmaceutical SciencesGuizhou University of Traditional Chinese Medicine Guiyang 550025 People's Republic of China
| | - Xiong Zuo
- Guizhou Engineering Center for Innovative Traditional Chinese Medicine and Ethnic MedicineGuizhou University Guiyang 550025 People's Republic of China
| | - Gen Zhou
- Guizhou Engineering Center for Innovative Traditional Chinese Medicine and Ethnic MedicineGuizhou University Guiyang 550025 People's Republic of China
| | - Yi Gong
- Guizhou Engineering Center for Innovative Traditional Chinese Medicine and Ethnic MedicineGuizhou University Guiyang 550025 People's Republic of China
- College of Pharmaceutical SciencesGuizhou University of Traditional Chinese Medicine Guiyang 550025 People's Republic of China
| | - Xiong‐Li Liu
- Guizhou Engineering Center for Innovative Traditional Chinese Medicine and Ethnic MedicineGuizhou University Guiyang 550025 People's Republic of China
| | - Ying Zhou
- College of Pharmaceutical SciencesGuizhou University of Traditional Chinese Medicine Guiyang 550025 People's Republic of China
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