发明人李文辉,钱学锋,张德明. "Method for the Synthesis of 4-Benzhydryl-N-phenylpiperazine-1-carboxamide" [P]. 中国发明专利, 专利号 CN 111885472 A, 授权公告日 2020-04-03.
发明人高志强,杨光,林芳. "A Process for Preparing High-Purity 4-Benzhydryl-N-phenylpiperazine-1-carboxamide" [P]. 中国发明专利, 专利号 CN 109824487 A, 授权公告日 2022-10-22.
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