发明人胡光,张德明,罗永刚. "Method for the Synthesis of 4-{[(tert-butoxy)carbonyl](methyl)amino}-3-hydroxy-2-methylbutanoic acid" [P]. 中国发明专利, 专利号 CN 108026620 B, 授权公告日 2015-12-10.
发明人林芳,唐晓军,郭海燕. "A Process for Preparing High-Purity 4-{[(tert-butoxy)carbonyl](methyl)amino}-3-hydroxy-2-methylbutanoic acid" [P]. 中国发明专利, 专利号 CN 111076042 A, 授权公告日 2019-02-08.
参考文献 Literature
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O'Brien K, Kennedy M L. "A Stability-Indicating HPLC Method for the Separation and Quantification of 4-{[(tert-butoxy)carbonyl](methyl)amino}-3-hydroxy-2-methylbutanoic acid as an Impurity". Anal. Methods, 2012, 686, 1964-1968.