Ethyl 2-(5-(5-chloro-4-(5-cyclopropyl-1H-pyrazol-3-ylamino)pyrimidin-2-yl)thiophen-2-yl)-2-hydroxyacetate   、                                                                                      
3-(5-bromothiophen-2-yl)-3-(tert-butyldimethylsilyloxy)propyl acetate   、                                                                                      
5-(3-acetoxy-1-(tert-butyldimethylsilyloxy)propyl)thiophen-2-ylboronic acid   、                                                                                      2-bromo-N-(3-cyclopropyl-1H-pyrazol-5-yl)-5-((trimethylsilyl)ethynyl)pyrimidin-4-amine                                                                                                                                                                                                                                                                                                          以to produce 3-(tert-butyldimethylsilyloxy)-3-(5-(4-(5-cyclopropyl-1H-pyrazol-3-ylamino)-5-ethynylpyrimidin-2-yl)thiophen-2-yl)propyl acetate (500 mg, 50.0%)的产率得到3-(tert-butyldimethylsilyloxy)-3-(5-(4-(5-cyclopropyl-1H-pyrazol-3-ylamino)-5-ethynylpyrimidin-2-yl)thiophen-2-yl)propyl acetate