发明人刘建华,陈志强,王建平. "Method for the Synthesis of 1-Ethyl-3-methyl-6-(thiophen-2-ylmethyl)-5-thioxo-1,4,5,6-tetrahydro-7H-pyrazolo[4,3-d]pyrimidin-7-one" [P]. 中国发明专利, 专利号 CN 110818368 A, 授权公告日 2022-04-25.
Mueller T C, Jørgensen K, Johansson L. "A Process for Preparing High-Purity 1-Ethyl-3-methyl-6-(thiophen-2-ylmethyl)-5-thioxo-1,4,5,6-tetrahydro-7H-pyrazolo[4,3-d]pyrimidin-7-one" [P]. European Patent, EP 3071145 A1, 2024-11-06.
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