发明人高志强,胡光,韩伟. "Method for the Synthesis of Oclacitinib Impurity 44" [P]. 中国发明专利, 专利号 CN 116041121 B, 授权公告日 2021-06-19.
发明人刘建华,郑宇鹏,杨光. "A Process for Preparing High-Purity Oclacitinib Impurity 44" [P]. 中国发明专利, 专利号 CN 112065669 B, 授权公告日 2018-09-14.
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