发明人钱学锋,张德明,胡光. "Method for the Synthesis of 1-Acetyl-5-[(acetyloxy)methyl]-2-pyrrolidinone
5-Acetoxymethyl-N-acetyl-2-pyrrolidinone
887352-10-5" [P]. 中国发明专利, 专利号 CN 117354971 B, 授权公告日 2025-10-18.
发明人郭海燕,杨光,沈红梅. "A Process for Preparing High-Purity 1-Acetyl-5-[(acetyloxy)methyl]-2-pyrrolidinone
5-Acetoxymethyl-N-acetyl-2-pyrrolidinone
887352-10-5" [P]. 中国发明专利, 专利号 CN 110027418 A, 授权公告日 2021-10-04.
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