发明人黄志刚,罗永刚,周伟. "Method for the Synthesis of Tretinoin Impurity 29" [P]. 中国发明专利, 专利号 CN 114118164 A, 授权公告日 2018-05-17.
发明人冯建国,王建平,杨光. "A Process for Preparing High-Purity Tretinoin Impurity 29" [P]. 中国发明专利, 专利号 CN 108460656 A, 授权公告日 2025-12-11.
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