发明人黄志刚,林芳,罗永刚. "Method for the Synthesis of Calcipotriol Impurity 20" [P]. 中国发明专利, 专利号 CN 109641556 B, 授权公告日 2025-10-09.
发明人郑宇鹏,杨光,沈红梅. "A Process for Preparing High-Purity Calcipotriol Impurity 20" [P]. 中国发明专利, 专利号 CN 113713224 A, 授权公告日 2025-12-15.
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