发明人郭海燕,钱学锋,朱建伟. "Method for the Synthesis of 1-tert-butoxycarbonyl-4-methyl-azetidine-2-carboxylic acid" [P]. 中国发明专利, 专利号 CN 108467963 A, 授权公告日 2023-05-19.
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