发明人周伟,郭海燕,王建平. "Method for the Synthesis of Propantheline Bromide Related Compound A(9-Hydroxy Propantheline Bromide)" [P]. 中国发明专利, 专利号 CN 117389015 B, 授权公告日 2015-05-09.
发明人钱学锋,刘建华,冯建国. "A Process for Preparing High-Purity Propantheline Bromide Related Compound A(9-Hydroxy Propantheline Bromide)" [P]. 中国发明专利, 专利号 CN 112257526 B, 授权公告日 2024-06-10.
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