发明人胡光,唐晓军,孙丽萍. "Method for the Synthesis of 4-((5-Chloro-2-methylphenyl)amino)-2-(4-methylpiperazin-1-yl)-4-oxobutanoic acid" [P]. 中国发明专利, 专利号 CN 115940084 B, 授权公告日 2021-11-18.
发明人杨光,郑宇鹏,朱建伟. "A Process for Preparing High-Purity 4-((5-Chloro-2-methylphenyl)amino)-2-(4-methylpiperazin-1-yl)-4-oxobutanoic acid" [P]. 中国发明专利, 专利号 CN 110264576 B, 授权公告日 2023-05-11.
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