(S)-1-{5-[2-(2,2-Dimethyl-propionylamino)-4-oxo-3,4-dihydro-pyrido[2,3-d]pyrimidin-6-ylethynyl]-thiophene-2-carbonyl}-azetidine-2-carboxylic acid methyl ester 在
palladium on activated charcoal
氢气 作用下,
以
甲醇 、
二氯甲烷 为溶剂,
50.0 ℃
、344.73 kPa
条件下,
以67%的产率得到(S)-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)-azetidine-2-carboxylic acid methyl ester