发明人何建平,孙丽萍,王建平. "Method for the Synthesis of 1-(4-Methyl-2-nitrophenyl)-5-oxopyrrolidine-3-carboxylic acid" [P]. 中国发明专利, 专利号 CN 111085623 B, 授权公告日 2022-01-11.
发明人胡光,郭海燕,郑宇鹏. "A Process for Preparing High-Purity 1-(4-Methyl-2-nitrophenyl)-5-oxopyrrolidine-3-carboxylic acid" [P]. 中国发明专利, 专利号 CN 115147648 A, 授权公告日 2024-09-15.
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