发明人郑宇鹏,罗永刚,唐晓军. "Method for the Synthesis of (3-Methyl-5-oxo-4,5-dihydro-1H-pyrazol-1-yl)acetic acid hydrochloride" [P]. 中国发明专利, 专利号 CN 110159565 A, 授权公告日 2015-10-12.
Chen K W, Fischer A B, Kumar R. "A Process for Preparing High-Purity (3-Methyl-5-oxo-4,5-dihydro-1H-pyrazol-1-yl)acetic acid hydrochloride" [P]. US Patent, US 11019925 B2, 2018-03-13.
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