发明人王建平,何建平,高志强. "Method for the Synthesis of 2-(Ethyl(propyl)amino)isonicotinic acid" [P]. 中国发明专利, 专利号 CN 110874070 A, 授权公告日 2021-05-06.
Hughes D C, Davis P L, Yamamoto T. "A Process for Preparing High-Purity 2-(Ethyl(propyl)amino)isonicotinic acid" [P]. US Patent, US 9626564 B2, 2022-06-25.
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