发明人赵玉洁,李文辉,徐明华. "Method for the Synthesis of Abemaciclib Impurity 5" [P]. 中国发明专利, 专利号 CN 114765219 B, 授权公告日 2016-09-13.
Patel M V, Davis P L, Fischer A B. "A Process for Preparing High-Purity Abemaciclib Impurity 5" [P]. US Patent, US 9012865 B2, 2024-07-15.
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