(RS)-2-(3,5-bis-trifluoromethyl-phenyl)-N-[6-[2-(tert-butyl-dimethyl-silanyloxy)-1-hydroxymethyl-ethylamino]-4-(4-fluoro-2-methyl-phenyl)-pyridin-3-yl]-N-methyl-isobutyramide 、
硫代乙酸 在
三苯基膦 、
偶氮二甲酸二乙酯 作用下,
以
四氢呋喃 为溶剂,
反应 0.5h,
以52%的产率得到(RS)-thioacetic acid 2-[5-{[2-(3,5-bis-trifluoromethyl-phenyl)-2-methyl-propionyl]-methyl-amino}-4-(4-fluoro-2-methyl-phenyl)-pyridin-2-ylamino]-3-(tert-butyl-dimethyl-silanyloxy)-propyl ester