Kowalski A, Mueller T C, Sørensen M. "Method for the Synthesis of Ethyl 4-[3-(N,N-dimethylamino)phenyl]-4-oxobutanoate" [P]. European Patent, EP 3998874 A1, 2023-09-09.
发明人张德明,沈红梅,冯建国. "A Process for Preparing High-Purity Ethyl 4-[3-(N,N-dimethylamino)phenyl]-4-oxobutanoate" [P]. 中国发明专利, 专利号 CN 114664580 A, 授权公告日 2025-06-05.
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