发明人郑宇鹏,沈红梅,冯建国. "Method for the Synthesis of 2-Amino-4-(2,4-dioxo-3-azabicyclo[3.1.0]hexan-3-yl)-2-methylbutanoic acid" [P]. 中国发明专利, 专利号 CN 112721958 A, 授权公告日 2018-05-03.
发明人黄志刚,高志强,林芳. "A Process for Preparing High-Purity 2-Amino-4-(2,4-dioxo-3-azabicyclo[3.1.0]hexan-3-yl)-2-methylbutanoic acid" [P]. 中国发明专利, 专利号 CN 109487002 B, 授权公告日 2020-02-01.
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