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Wang T, Wang WB, Fu YM, Zhu CF, Cheng LJ, You YE, Wu X, Li YG. Asymmetric Double Oxidative [3 + 2] Cycloaddition for the Synthesis of CF 3-Containing Spiro[pyrrolidin-3,2'-oxindole]. Org Lett 2023; 25:3152-3156. [PMID: 37083397 DOI: 10.1021/acs.orglett.3c01083] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 04/22/2023]
Abstract
An asymmetric double oxidative [3 + 2] cycloaddition is reported. Oxidation of 3-((2,2,2-trifluoroethyl)amino)indolin-2-ones and β-aryl-substituted aldehydes simultaneously and subsequent asymmetric cycloaddition in the presence of the chiral amino catalyst generated highly functionalized chiral CF3-containing spiro[pyrrolidin-3,2'-oxindole] with four contiguous stereocenters stereoselectively, which is characterized by directly constructing two C-C bonds from four C(sp3)-H bonds. This new method features mild conditions, broad substrate scope, and excellent functional group compatibility.
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Affiliation(s)
- Tao Wang
- Anhui Province Key Laboratory of Advanced Catalytic Materials and Reaction Engineering, School of Chemistry and Chemical Engineering, Hefei University of Technology, Hefei 230009, China
| | - Wen-Bin Wang
- Anhui Province Key Laboratory of Advanced Catalytic Materials and Reaction Engineering, School of Chemistry and Chemical Engineering, Hefei University of Technology, Hefei 230009, China
| | - Yan-Ming Fu
- Anhui Province Key Laboratory of Advanced Catalytic Materials and Reaction Engineering, School of Chemistry and Chemical Engineering, Hefei University of Technology, Hefei 230009, China
| | - Cheng-Feng Zhu
- Anhui Province Key Laboratory of Advanced Catalytic Materials and Reaction Engineering, School of Chemistry and Chemical Engineering, Hefei University of Technology, Hefei 230009, China
| | - Lan-Jun Cheng
- Anhui Province Key Laboratory of Advanced Catalytic Materials and Reaction Engineering, School of Chemistry and Chemical Engineering, Hefei University of Technology, Hefei 230009, China
| | - Yang-En You
- Anhui Province Key Laboratory of Advanced Catalytic Materials and Reaction Engineering, School of Chemistry and Chemical Engineering, Hefei University of Technology, Hefei 230009, China
| | - Xiang Wu
- Anhui Province Key Laboratory of Advanced Catalytic Materials and Reaction Engineering, School of Chemistry and Chemical Engineering, Hefei University of Technology, Hefei 230009, China
| | - You-Gui Li
- Anhui Province Key Laboratory of Advanced Catalytic Materials and Reaction Engineering, School of Chemistry and Chemical Engineering, Hefei University of Technology, Hefei 230009, China
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Dasi R, Villinger A, Brasholz M. Photocatalytic Azetidine Synthesis by Aerobic Dehydrogenative [2 + 2] Cycloadditions of Amines with Alkenes. Org Lett 2022; 24:8041-8046. [PMID: 36264267 DOI: 10.1021/acs.orglett.2c03291] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
Photocatalytic dehydrogenative [2 + 2] cycloadditions between amines and alkenes were developed that allow for the stereoselective and high-yielding synthesis of functionalized azetidines. The oxidative formal Aza Paternò-Büchi reactions are induced by photoredox-catalyzed aerobic oxidation of dihydroquinoxalinones 1 as the amines, and in the presence of structurally diverse alkenes 3 intermolecular [2 + 2] cyclization to dihydro-1H-azeto[1,2-a]quinoxalin-3(4H)-ones 4 occurs. The utility of the method is illustrated by the selective conversion of amino acid derived dihydroquinoxalinones 1, including oxidation-prone lysine and tryptophan derivatives.
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Affiliation(s)
- Rajesh Dasi
- University of Rostock, Institute of Chemistry, Albert-Einstein-Str. 3a, 18059 Rostock, Germany
| | - Alexander Villinger
- University of Rostock, Institute of Chemistry, Albert-Einstein-Str. 3a, 18059 Rostock, Germany
| | - Malte Brasholz
- University of Rostock, Institute of Chemistry, Albert-Einstein-Str. 3a, 18059 Rostock, Germany.,Leibniz-Institut für Katalyse e.V., Albert-Einstein-Str. 29a, 18059 Rostock, Germany
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3
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Soni JP, Sathish M, Nachtigall FM, Santos LS, Shankaraiah N. Brown seaweed‐derived alginic acid: An efficient and reusable catalyst for Pictet‐Spengler reaction to access tetrahydro‐β‐carboline and tetrahydroisoquinoline frameworks. ASIAN J ORG CHEM 2022. [DOI: 10.1002/ajoc.202200129] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
Affiliation(s)
- Jay Prakash Soni
- National Institute of Pharmaceutical Education and Research Hyderabad Department of Medicinal Chemistry 500037 Hyderabad INDIA
| | - Manda Sathish
- Catholic University of the Maule: Universidad Catolica del Maule Research center for Advance Studies of Maule, 3460000 Talca CHILE
| | - Fabiane M. Nachtigall
- Universidad Autonoma de Chile Instituto de Ciencias Quimicas Aplicadas 3467987 Talca CHILE
| | - Leonardo S. Santos
- Talca University: Universidad de Talca Chemistry Institute of Natural Resources 3460000 Talca CHILE
| | - Nagula Shankaraiah
- National Institute of Pharmaceutical Education and Research NIPER Department of Medicinal Chemistry Balanagar 500037 Hyderabad INDIA
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Wu X, Zhu ZH, He H, Ren L, Zhu CF, Li YG. Construction of 1,3-Oxazolidines through a Three-Component [3+2] Cycloaddition of Tetrahydroisoquinolines, Aldehydes, and Ethyl Ketomalonate. J Org Chem 2020; 85:6216-6224. [PMID: 32270678 DOI: 10.1021/acs.joc.0c00616] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
A chemoselective and diastereoselective synthesis of fused oxazolidines was achieved by a three-component cascade reaction of tetrahydroisoquinolines (THIQs), α,β-unsaturated aldehydes, and diethyl 2-oxomalonate. Probably due to the reactivity difference between the aldehyde and the ketone, the reaction proceeded through the condensation of THIQs with α,β-unsaturated aldehydes and 1,3-dipolar cycloaddition of the generated azomethine ylide intermediate with 2-oxomalonate. The key features are easily available starting materials, mild reaction conditions, broad substrate scope, and high chemo- and diastereoselectivity.
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Affiliation(s)
- Xiang Wu
- Anhui Province Key Laboratory of Advanced Catalytic Materials and Reaction Engineering, School of Chemistry and Chemical Engineering, Hefei University of Technology, Hefei 230009, China
| | - Zheng-Hao Zhu
- Anhui Province Key Laboratory of Advanced Catalytic Materials and Reaction Engineering, School of Chemistry and Chemical Engineering, Hefei University of Technology, Hefei 230009, China
| | - Hao He
- Anhui Province Key Laboratory of Advanced Catalytic Materials and Reaction Engineering, School of Chemistry and Chemical Engineering, Hefei University of Technology, Hefei 230009, China
| | - Lei Ren
- College of Materials and Chemical Engineering, Bengbu University, Bengbu 233030, China
| | - Cheng-Feng Zhu
- Anhui Province Key Laboratory of Advanced Catalytic Materials and Reaction Engineering, School of Chemistry and Chemical Engineering, Hefei University of Technology, Hefei 230009, China
| | - You-Gui Li
- Anhui Province Key Laboratory of Advanced Catalytic Materials and Reaction Engineering, School of Chemistry and Chemical Engineering, Hefei University of Technology, Hefei 230009, China
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Wang JT, Peng JG, Zhang JQ, Wang ZX, Zhang Y, Zhou XR, Miao J, Tang L. Novel berberine-based derivatives with potent hypoglycemic activity. Bioorg Med Chem Lett 2019; 29:126709. [PMID: 31629632 DOI: 10.1016/j.bmcl.2019.126709] [Citation(s) in RCA: 16] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/31/2019] [Revised: 08/30/2019] [Accepted: 09/16/2019] [Indexed: 12/24/2022]
Abstract
Four series of berberine derivatives were designed and synthesized. All the synthetic compounds were screened for in vitro glucose consumption activity in HepG2 cell lines. The results showed that most of the tested compounds exhibited potent hypoglycemic activity, and the most potent compound 20b exhibited its potency by 3.23-fold of berberine, 1.39-fold of metformin and 1.20-fold of rosiglitazone, respectively. Western blot assay indicated these novel berberine-based derivatives executed their glucose-decreasing activity via the activation of AMPK pathway.
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Affiliation(s)
- Jian-Ta Wang
- State Key Laboratory of Functions and Applications of Medicinal Plants, School of Pharmacy, Guizhou Medical University, Guiyang 550004, China; School of Basic Medical Sciences, Guizhou Medical University, Guiyang 550004, China; Guizhou Provincial Engineering Technology Research Center for Chemical Drug R&D, Guiyang 550004, China
| | - Jin-Gang Peng
- State Key Laboratory of Functions and Applications of Medicinal Plants, School of Pharmacy, Guizhou Medical University, Guiyang 550004, China
| | - Ji-Quan Zhang
- State Key Laboratory of Functions and Applications of Medicinal Plants, School of Pharmacy, Guizhou Medical University, Guiyang 550004, China; Guizhou Provincial Engineering Technology Research Center for Chemical Drug R&D, Guiyang 550004, China
| | - Zhong-Xiao Wang
- State Key Laboratory of Functions and Applications of Medicinal Plants, School of Pharmacy, Guizhou Medical University, Guiyang 550004, China
| | - Yi Zhang
- State Key Laboratory of Functions and Applications of Medicinal Plants, School of Pharmacy, Guizhou Medical University, Guiyang 550004, China; Guizhou Provincial Engineering Technology Research Center for Chemical Drug R&D, Guiyang 550004, China
| | - Xun-Rong Zhou
- The Second Affiliated Hospital of Guizhou Chinese Traditional Medicine University, Guiyang 550001, China
| | - Jing Miao
- State Key Laboratory of Functions and Applications of Medicinal Plants, School of Pharmacy, Guizhou Medical University, Guiyang 550004, China
| | - Lei Tang
- State Key Laboratory of Functions and Applications of Medicinal Plants, School of Pharmacy, Guizhou Medical University, Guiyang 550004, China; Guizhou Provincial Engineering Technology Research Center for Chemical Drug R&D, Guiyang 550004, China.
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