发明人何建平,韩伟,郭海燕. "Method for the Synthesis of Pf-4989216" [P]. 中国发明专利, 专利号 CN 113583459 A, 授权公告日 2020-07-03.
发明人高志强,沈红梅,刘建华. "A Process for Preparing High-Purity Pf-4989216" [P]. 中国发明专利, 专利号 CN 111386227 A, 授权公告日 2015-06-14.
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