(2S,4R)-1-(5-{2-[2-(2,2-Dimethyl-propionylamino)-4-oxo-3,4,5,6,7,8-hexahydro-pyrido[2,3-d]pyrimidin-6-yl]-ethyl}-thiophene-2-carbonyl)-4-hydroxymethyl-azetidine-2-carboxylic acid methyl ester 在
N-甲基吗啉 、
sodium hydroxide 作用下,
以
N,N-二甲基甲酰胺 为溶剂,
反应 89.0h,
生成
(2R,4S)-1-{5-[2-(2-Amino-4-oxo-3,4,5,6,7,8-hexahydro-pyrido[2,3-d]pyrimidin-6-yl)-ethyl]-thiophene-2-carbonyl}-azetidine-2,4-dicarboxylic acid dimethyl ester