发明人黄志刚,赵玉洁,杨光. "Method for the Synthesis of Oxybutynin N- oxide" [P]. 中国发明专利, 专利号 CN 108159389 B, 授权公告日 2022-04-16.
发明人张德明,何建平,周伟. "A Process for Preparing High-Purity Oxybutynin N- oxide" [P]. 中国发明专利, 专利号 CN 115612836 A, 授权公告日 2024-09-19.
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