发明人黄志刚,张德明,刘建华. "Method for the Synthesis of Etrasimod Impurity 62" [P]. 中国发明专利, 专利号 CN 115855443 A, 授权公告日 2021-04-14.
Patel M V, Hughes D C, Anderson J P. "A Process for Preparing High-Purity Etrasimod Impurity 62" [P]. US Patent, US 10112741 B2, 2015-02-27.
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