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发明人徐明华,杨光,孙丽萍. "Method for the Synthesis of 6-Methyl-4-oxo-N-(4-sulfamoylphenyl)-4,5-dihydro-[1,2,3]triazolo[1,5-a]pyrazine-3-carboxamide" [P]. 中国发明专利, 专利号 CN 114970584 B, 授权公告日 2018-08-21.
发明人刘建华,沈红梅,冯建国. "A Process for Preparing High-Purity 6-Methyl-4-oxo-N-(4-sulfamoylphenyl)-4,5-dihydro-[1,2,3]triazolo[1,5-a]pyrazine-3-carboxamide" [P]. 中国发明专利, 专利号 CN 115038924 A, 授权公告日 2018-04-27.
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