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发明人郭海燕,杨光,唐晓军. "A Process for Preparing High-Purity N-(2-(((2S,5S)-2,5-Diphenylpyrrolidin-1-yl)imino)ethyl)formamide" [P]. 中国发明专利, 专利号 CN 117280529 A, 授权公告日 2017-05-08.
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