血小板凝集抑制活性を持つ4,5-ジアリールチアゾール誘導体の合成
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概要
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A number of 2-substituted 4,5-diphenylthiazoles were synthesized by the nucleophilic substitution of 2-methylsulfonyl-4,5-diphenylthiazole with various sodium alkoxides, amines, and carbanions of active methylene compounds. 2-Methylsulfonyl-4,5-diphenylthiazole was obtained by the potassium permanganate oxidation of 2-methylthio-4,5-diphenylthiazole in the presence of a phase-transfer catalyst. 2-Ethoxy-4,5-bis (4-methoxyphenyl) thiazole was prepared in a similar manner. 2-Ethynyl-4,5-diphenylthiazoles were synthesized by the palladium catalyst cross-coupling reaction of 2-iodo-4,5-diphenylthiazole with monosubstituted acetylenes. These compounds were tested for inhibitory activity against blood platelet aggregation in vitro. Among them, 2-alkoxy-, and 2-(4-methylpiperazin-1-yl)-4,5-diphenylthiazole were found to have potent inhibitory activity.
- 公益社団法人日本薬学会の論文
- 1990-02-25
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