发明人高志强,沈红梅,黄志刚. "Method for the Synthesis of 4-Ethyl-7-oxo-2-(trifluoromethyl)-4,7-dihydro-[1,2,4]triazolo[1,5-a]pyrimidine-6-carboxylic acid" [P]. 中国发明专利, 专利号 CN 110362009 B, 授权公告日 2017-10-27.
发明人赵玉洁,刘建华,郭海燕. "A Process for Preparing High-Purity 4-Ethyl-7-oxo-2-(trifluoromethyl)-4,7-dihydro-[1,2,4]triazolo[1,5-a]pyrimidine-6-carboxylic acid" [P]. 中国发明专利, 专利号 CN 117005273 A, 授权公告日 2024-08-25.
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