反应详情

A solution of 4-(3-chloro-4-methoxybenzylamino)-5-formyl-2-methylthiopyrimidine 0.5 g in tetrahydrofuran 20 ml is reacted at −78° C. with lithium salt of 1-methylimidazole 0.394 ml in the same manner as Example 86 to give 4-(3-chloro-4-methoxybenzylamino)-5-[(hydroxy)(1-methyl-2-imidazolyl)methyl]-2-methylthiopyrimidine. Thus obtained compound is oxidized at room temperature with manganese dioxide in chloroform and then the oxidized compound is post-treated in the same manner as Example 86 to give 4-(3-chloro-4-methoxybenzylamino)-5-(1-methyl-2-imidazolylcarbonyl-2-methylthiopyrimidine 0.5913 g. mp 158–159° C.