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发明人赵玉洁,沈红梅,唐晓军. "A Process for Preparing High-Purity (R)-3-amino-3-(2,3-dimethoxyphenyl)propanoic acid" [P]. 中国发明专利, 专利号 CN 109763650 A, 授权公告日 2021-03-28.
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