发明人冯建国,朱建伟,王建平. "Method for the Synthesis of D,L-Tryptophan Methyl Ester Benzaldimine" [P]. 中国发明专利, 专利号 CN 112613920 B, 授权公告日 2021-04-14.
发明人李文辉,黄志刚,郭海燕. "A Process for Preparing High-Purity D,L-Tryptophan Methyl Ester Benzaldimine" [P]. 中国发明专利, 专利号 CN 112251389 B, 授权公告日 2018-07-21.
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