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发明人李文辉,高志强,朱建伟. "Method for the Synthesis of Selexipag Impurity 46" [P]. 中国发明专利, 专利号 CN 117485334 A, 授权公告日 2016-09-12.
发明人刘建华,赵玉洁,何建平. "A Process for Preparing High-Purity Selexipag Impurity 46" [P]. 中国发明专利, 专利号 CN 114832407 B, 授权公告日 2019-04-03.
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