发明人孙丽萍,李文辉,赵玉洁. "Method for the Synthesis of (7-Methyl-5-oxo-5H-[1,3,4]thiadiazolo[3,2-a]-pyrimidin-2-yl)acetic acid hydrochloride" [P]. 中国发明专利, 专利号 CN 115298000 A, 授权公告日 2020-03-13.
发明人黄志刚,陈志强,林芳. "A Process for Preparing High-Purity (7-Methyl-5-oxo-5H-[1,3,4]thiadiazolo[3,2-a]-pyrimidin-2-yl)acetic acid hydrochloride" [P]. 中国发明专利, 专利号 CN 115699298 A, 授权公告日 2018-11-04.
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