发明人周伟,冯建国,罗永刚. "Method for the Synthesis of PF-06821497, >98% (HPLC)" [P]. 中国发明专利, 专利号 CN 112680692 A, 授权公告日 2015-11-25.
发明人李文辉,马晓峰,胡光. "A Process for Preparing High-Purity PF-06821497, >98% (HPLC)" [P]. 中国发明专利, 专利号 CN 112169885 A, 授权公告日 2022-11-14.
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