Studies on Nucleoside Analogs. XX. Syntheses of 1,2,4-Triazole and 1,3,5-Triazine Glycosides
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概要
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The reaction of glycosyl isothiocyanate (1a) with thiourea in the presence of Mel-NEt_3 gave a di-SMe compound (2a) and a mono-SMe compound (3a). Glycosyl isothiocyanates (1a, b, and c) reacted with amidino compounds (HN=CRNH_3 ; R=H, Me, OMe, SMe, NH_2) to afforded the corresponding glycosyl isothiobiurets (3a, c, and 6a, b), N-glycosyl-N'-amidino thioureides (4a, b, and 5a, b) or N-glycosyl-N'-guanidyl thioureides (7a and b) in good yields. Treatment of 3a, 6b, or 7a, b with HC (OEt)_3 gave the corresponding s-triazine glycosides (8a, 9a, b, and 10b) in fair yields. On the other hand, similar treatment of 4a, b or 5a, b with HC (OEt)_3 did not give s-triazine glycosides, but the starting material was recovered. N-Bromosuccinimide oxidation of 4a, b, 5a, b, 3a, c or 7a, b gave the corresponding 5-substituted-1,2,4-triazole-3-thiones (11a, b, 12a, b, or 14a, b) in excellent yields.
- 社団法人日本薬学会の論文
- 1981-07-25
著者
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小倉 治夫
School of Pharmaceutical Sciences, Kitasato University
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高橋 洋
School Of Pharmaceutical Sciences Kitasato University
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小倉 治夫
School Of Pharmaceutical Sciences Kitasato University
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佐藤 収
School of Pharmaceutical Sciences, Kitasato University
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佐藤 収
School Of Pharmaceutical Sciences Kitasato University
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