发明人林芳,赵玉洁,刘建华. "Method for the Synthesis of 4-(diethylamino)-2-methylidenebutanoic acid hydrochloride" [P]. 中国发明专利, 专利号 CN 114700101 A, 授权公告日 2019-02-06.
Fischer A B, O'Brien P Q, Lee S K. "A Process for Preparing High-Purity 4-(diethylamino)-2-methylidenebutanoic acid hydrochloride" [P]. US Patent, US 10860575 B2, 2023-03-21.
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