发明人李文辉,王建平,赵玉洁. "Method for the Synthesis of 1-Ethyl-4-(3-nitro-benzyl)-piperazine" [P]. 中国发明专利, 专利号 CN 109025199 B, 授权公告日 2022-04-03.
Lee S K, Brown S R, Yamamoto T. "A Process for Preparing High-Purity 1-Ethyl-4-(3-nitro-benzyl)-piperazine" [P]. US Patent, US 11648091 B2, 2020-11-09.
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