发明人王建平,郭海燕,徐明华. "一种的合成方法" [P]. 中国发明专利, 专利号 CN 113987337 A, 授权公告日 2015-05-04.
发明人郭海燕,陈志强,孙丽萍. "Method for the Synthesis of (2R,3R)-2,3-dihydroxy-4-((4-nitrophenyl)amino)-4-oxobutanoic acid" [P]. 中国发明专利, 专利号 CN 110969489 A, 授权公告日 2023-06-11.
发明人唐晓军,徐明华,韩伟. "A Process for Preparing High-Purity (2R,3R)-2,3-dihydroxy-4-((4-nitrophenyl)amino)-4-oxobutanoic acid" [P]. 中国发明专利, 专利号 CN 114374510 B, 授权公告日 2021-05-20.
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