发明人孙丽萍,郑宇鹏,韩伟. "一种(S)-4-乙基-4-羟基-8-甲氧基-3-氧代-3,4-二氢-1H-吡喃并[3,4-c]吡啶-6-羧酸丙酯的合成方法" [P]. 中国发明专利, 专利号 CN 115711357 A, 授权公告日 2018-11-13.
发明人唐晓军,李文辉,王建平. "Method for the Synthesis of (S)-Propyl 4-ethyl-4-hydroxy-8-methoxy-3-oxo-3,4-dihydro-1H-pyrano[3,4-c]pyridine-6-carboxylate" [P]. 中国发明专利, 专利号 CN 113125258 B, 授权公告日 2015-01-25.
发明人孙丽萍,唐晓军,黄志刚. "A Process for Preparing High-Purity (S)-Propyl 4-ethyl-4-hydroxy-8-methoxy-3-oxo-3,4-dihydro-1H-pyrano[3,4-c]pyridine-6-carboxylate" [P]. 中国发明专利, 专利号 CN 115692460 B, 授权公告日 2021-12-13.
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