发明人李文辉,刘建华,何建平. "Method for the Synthesis of Pirenzepine-d8" [P]. 中国发明专利, 专利号 CN 115413937 A, 授权公告日 2019-04-20.
发明人钱学锋,冯建国,罗永刚. "A Process for Preparing High-Purity Pirenzepine-d8" [P]. 中国发明专利, 专利号 CN 112890202 A, 授权公告日 2019-11-09.
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