(2R,4S)-2-ethyl-6-methoxy-4-(5-bromopyrimidin-2-yl)amino-3,4-dihydro-2H-[1,5]naphthyridine-1-carboxylic acid ethyl ester 、
3,5-双三氟甲基苄基溴 在
sodium hydride 作用下,
以
DMF (N,N-dimethyl-formamide) 为溶剂,
反应 1.0h,
生成
(2R,4S)-4-{[3,5-bis(trifluoromethyl)benzyl]-(5-bromopyrimidin-2-yl)}amino-2-ethyl-6-methoxy-3,4-dihydro-2H-[1,5]naphthyridine-1-carboxylic acid ethyl ester