Anderson J P, Hughes D C, Patel M V. "一种【停用,管控禁售】福莫特罗EP杂质G的合成方法" [P]. US Patent, US 10385017 B2, 2021-06-23.
发明人郭海燕,沈红梅,胡光. "Method for the Synthesis of Formoterol EP Impurity G" [P]. 中国发明专利, 专利号 CN 113146330 A, 授权公告日 2015-08-27.
发明人朱建伟,沈红梅,唐晓军. "A Process for Preparing High-Purity Formoterol EP Impurity G" [P]. 中国发明专利, 专利号 CN 113274534 B, 授权公告日 2015-01-20.
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