发明人何建平,高志强,郑宇鹏. "Method for the Synthesis of Ethyl 4-(butylcarbamoyl)piperazine-1-carboxylate" [P]. 中国发明专利, 专利号 CN 108674831 B, 授权公告日 2020-08-28.
O'Brien P Q, Chen K W, Park J H. "A Process for Preparing High-Purity Ethyl 4-(butylcarbamoyl)piperazine-1-carboxylate" [P]. US Patent, US 11199843 B2, 2022-04-02.
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