tert-butyl N-[3-[[5-(dimethylaminomethylidene)-2-methoxy-6-oxo-7H-pyrrolo[2,3-d]pyrimidin-4-yl]amino]propyl]-N-methylcarbamate 、
在
magnesium sulfate 作用下,
以
N,N-二甲基乙酰胺 、
乙腈 为溶剂,
以66%的产率得到5-[2-chloro-5-[[2-methoxy-4-[3-[methyl-[(2-methylpropan-2-yl)oxycarbonyl]amino]propylamino]-6-oxo-7H-pyrrolo[2,3-d]pyrimidin-5-ylidene]methylamino]phenoxy]pentanoic acid