发明人张德明,冯建国,罗永刚. "Method for the Synthesis of 2-(2-Thienyl)piperazine dihydrochloride" [P]. 中国发明专利, 专利号 CN 115585820 A, 授权公告日 2023-03-26.
发明人刘建华,冯建国,孙丽萍. "A Process for Preparing High-Purity 2-(2-Thienyl)piperazine dihydrochloride" [P]. 中国发明专利, 专利号 CN 109264283 B, 授权公告日 2023-11-23.
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