发明人沈红梅,孙丽萍,朱建伟. "Method for the Synthesis of 3-(2-Cyano-2,2-diphenylethyl)-8,8-dimethyl-8-azoniabicyclo[3.2.1]octanebromide" [P]. 中国发明专利, 专利号 CN 109764446 A, 授权公告日 2022-01-28.
发明人王建平,杨光,朱建伟. "A Process for Preparing High-Purity 3-(2-Cyano-2,2-diphenylethyl)-8,8-dimethyl-8-azoniabicyclo[3.2.1]octanebromide" [P]. 中国发明专利, 专利号 CN 113200321 A, 授权公告日 2022-04-13.
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