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发明人孙丽萍,冯建国,钱学锋. "A Process for Preparing High-Purity 5-Ethyl-4-morpholin-4-ylmethyl-furan-2-carboxylic acid hydrochloride" [P]. 中国发明专利, 专利号 CN 109973937 A, 授权公告日 2020-11-01.
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