2-(FORMYLAMINO)-N-(1H-TETRAZOL-5-YL)BENZAMIDE AND PROCESS FOR PREPARATION THEREOF

摘要

Title compd. (I), showing antiallergic activity, was prepd.. Thus, a mixt. contg. 300ml THF, 10.3g 5-aminotetrazole monohydrate in 15ml H2O and 9.3g 2-nitrobenzoyl chloride was stood for 30min, diluted with 200ml H2O, and stored in a refrigerator for 72hr to give a precipitate, 2-nitro-N-(1H-tetrazol-5-yl)benzamide.