发明人郭海燕,赵玉洁,冯建国. "Method for the Synthesis of (R)-Morpholine-2-carboxylic acid hydrochloride" [P]. 中国发明专利, 专利号 CN 115990139 B, 授权公告日 2016-03-06.
发明人冯建国,黄志刚,徐明华. "A Process for Preparing High-Purity (R)-Morpholine-2-carboxylic acid hydrochloride" [P]. 中国发明专利, 专利号 CN 108313858 B, 授权公告日 2020-03-18.
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