| 摘要 |
7-Methylthio or methylsulfinyl-5-oxo-5H-thiazolo[2,3-b]quinazoline-2-carboxylic acid, useful as antiallergic agents, and prepared by the reaction of 5-methylthioanthranilic acid with methyl 2-chlorothiazole-5-carboxylate, subsequent hydrolysis, and, as necessary, oxidation to the corresponding sulfoxide, is described. |
