发明人高志强,孙丽萍,赵玉洁. "Method for the Synthesis of 3-Methyl-2-(pyrimidin-2-ylamino)-butyric acid" [P]. 中国发明专利, 专利号 CN 115013850 A, 授权公告日 2018-08-21.
发明人黄志刚,陈志强,周伟. "A Process for Preparing High-Purity 3-Methyl-2-(pyrimidin-2-ylamino)-butyric acid" [P]. 中国发明专利, 专利号 CN 112237575 A, 授权公告日 2015-04-14.
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