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Zaķis JM, Ozols K, Novosjolova I, Vilšķērsts R, Mishnev A, Turks M. Sulfonyl Group Dance: A Tool for the Synthesis of 6-Azido-2-sulfonylpurine Derivatives. J Org Chem 2020; 85:4753-4771. [PMID: 32150410 DOI: 10.1021/acs.joc.9b03518] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
Abstract
9-Substituted 2-chloro-6-sulfonylpurines provide 6-azido-2-sulfonylpurine derivatives with 61-83% yields when treated with sodium azide. Under optimized reaction conditions, the title compounds are obtained in a one-pot process, which involves a sequential treatment of 2,6-dichloropurines with a selected sodium sulfinate and sodium azide. Such a sulfonyl group dance (functional group swap) results from a cascade of SNAr reactions, which are facilitated by azidoazomethine-tetrazole (azide-tetrazole) tautomeric equilibrium. The formation of Meisenheimer-type intermediates as tetrazolopurine tautomers was supported by various spectroscopic methods, including 15N NMR.
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Affiliation(s)
- Janis Miķelis Zaķis
- Institute of Technology of Organic Chemistry, Faculty of Materials Science and Applied Chemistry, Riga Technical University, Paula Valdena Str. 3, Riga LV-1048, Latvia
| | - Kristers Ozols
- Institute of Technology of Organic Chemistry, Faculty of Materials Science and Applied Chemistry, Riga Technical University, Paula Valdena Str. 3, Riga LV-1048, Latvia
| | - Irina Novosjolova
- Institute of Technology of Organic Chemistry, Faculty of Materials Science and Applied Chemistry, Riga Technical University, Paula Valdena Str. 3, Riga LV-1048, Latvia
| | - Reinis Vilšķērsts
- Faculty of Pharmacy, Riga Stradins University, Dzirciema Str. 16, Riga LV-1007, Latvia.,Latvian Institute of Organic Synthesis, Aizkraukles Str. 21, Riga LV-1006, Latvia
| | - Anatoly Mishnev
- Latvian Institute of Organic Synthesis, Aizkraukles Str. 21, Riga LV-1006, Latvia
| | - Maris Turks
- Institute of Technology of Organic Chemistry, Faculty of Materials Science and Applied Chemistry, Riga Technical University, Paula Valdena Str. 3, Riga LV-1048, Latvia
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Seto S, Okada K, Kiyota K, Isogai S, Iwago M, Shinozaki T, Kitamura Y, Kohno Y, Murakami K. Design, Synthesis, and Structure−Activity Relationship Studies of Novel 2,4,6-Trisubstituted-5-pyrimidinecarboxylic Acids as Peroxisome Proliferator-Activated Receptor γ (PPARγ) Partial Agonists with Comparable Antidiabetic Efficacy to Rosiglitazone. J Med Chem 2010; 53:5012-24. [DOI: 10.1021/jm100443s] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Shigeki Seto
- Discovery Research Laboratories, Kyorin Pharmaceutical Co., Ltd., 2399-1, Nogi, Nogi-machi, Shimotsuga-gun, Tochigi 329-0114, Japan
| | - Kyoko Okada
- Discovery Research Laboratories, Kyorin Pharmaceutical Co., Ltd., 2399-1, Nogi, Nogi-machi, Shimotsuga-gun, Tochigi 329-0114, Japan
| | - Koichi Kiyota
- Discovery Research Laboratories, Kyorin Pharmaceutical Co., Ltd., 2399-1, Nogi, Nogi-machi, Shimotsuga-gun, Tochigi 329-0114, Japan
| | - Shigeki Isogai
- Discovery Research Laboratories, Kyorin Pharmaceutical Co., Ltd., 2399-1, Nogi, Nogi-machi, Shimotsuga-gun, Tochigi 329-0114, Japan
| | - Maki Iwago
- Discovery Research Laboratories, Kyorin Pharmaceutical Co., Ltd., 2399-1, Nogi, Nogi-machi, Shimotsuga-gun, Tochigi 329-0114, Japan
| | - Takehiro Shinozaki
- Discovery Research Laboratories, Kyorin Pharmaceutical Co., Ltd., 2399-1, Nogi, Nogi-machi, Shimotsuga-gun, Tochigi 329-0114, Japan
| | - Yoshiaki Kitamura
- Discovery Research Laboratories, Kyorin Pharmaceutical Co., Ltd., 2399-1, Nogi, Nogi-machi, Shimotsuga-gun, Tochigi 329-0114, Japan
| | - Yasushi Kohno
- Discovery Research Laboratories, Kyorin Pharmaceutical Co., Ltd., 2399-1, Nogi, Nogi-machi, Shimotsuga-gun, Tochigi 329-0114, Japan
| | - Koji Murakami
- Discovery Research Laboratories, Kyorin Pharmaceutical Co., Ltd., 2399-1, Nogi, Nogi-machi, Shimotsuga-gun, Tochigi 329-0114, Japan
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Biagi G, Giorgi I, Livi O, Pacchini F, Scartoni V, Salerni OL. New C(2)-substituted 8-alkylsulfanyl-9-phenylmethyl-hypoxanthines III. J Heterocycl Chem 2005. [DOI: 10.1002/jhet.5570420501] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
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