(S)-tert-butyl (1-(3,6-dibromo-5-(2,2,2-trifluoroacetamido)pyridin-2-yl)-2-(3,5-difluorophenyl)ethyl)carbamate 、 trifluoracetic acid-dichloromethane 以
二氯甲烷 为溶剂,
反应 1.0h,
以to afford (S)—N-(6-(1-amino-2-(3,5-difluorophenyl)ethyl)-2,5-dibromopyridin-3-yl)-2,2,2-trifluoroacetamide as a TFA salt的产率得到(S)-N-(6-(1-amino-2-(3,5-difluorophenyl)ethyl)-2,5-dibromopyridin-3-yl)-2,2,2-trifluoroacetamide