发明人沈红梅,胡光,黄志刚. "Method for the Synthesis of 2-(9-Methyl-1-oxo-7,8,9,10-tetrahydropyrazino[1,2-b]indazol-2(1H)-yl)acetic acid" [P]. 中国发明专利, 专利号 CN 112170864 B, 授权公告日 2016-12-13.
发明人沈红梅,郑宇鹏,高志强. "A Process for Preparing High-Purity 2-(9-Methyl-1-oxo-7,8,9,10-tetrahydropyrazino[1,2-b]indazol-2(1H)-yl)acetic acid" [P]. 中国发明专利, 专利号 CN 108215077 A, 授权公告日 2019-11-19.
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