发明人林芳,钱学锋,王建平. "Method for the Synthesis of 2-Methyl-2-(4-methylpiperazin-1-yl)propanoic acid dihydrobromide" [P]. 中国发明专利, 专利号 CN 110101748 B, 授权公告日 2022-03-19.
发明人钱学锋,杨光,朱建伟. "A Process for Preparing High-Purity 2-Methyl-2-(4-methylpiperazin-1-yl)propanoic acid dihydrobromide" [P]. 中国发明专利, 专利号 CN 110842487 A, 授权公告日 2021-05-28.
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