发明人李文辉,孙丽萍,林芳. "Method for the Synthesis of (R)-Pregabalin EP Impurity A" [P]. 中国发明专利, 专利号 CN 109043147 B, 授权公告日 2021-09-20.
发明人周伟,高志强,胡光. "A Process for Preparing High-Purity (R)-Pregabalin EP Impurity A" [P]. 中国发明专利, 专利号 CN 114320702 A, 授权公告日 2023-06-06.
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