tert-butyl 4-(5-(4-(butyloxycarbonylaminomethyl)piperidin-1-yl)-1-methyl-1H-pyrazol-4-ylcarbamoyl)-2-bromothiazol-5-ylcarbamate 、
3,4-二氢-2H-吡喃-6-硼酸频那醇酯 以gave 290 as a yellow solid (27 mg, 20% over three steps)的产率得到5-amino-N-(5-(4-(aminomethyl)piperidin-1-yl)-1-methyl-1H-pyrazol-4-yl)-2-(tetrahydro-2H-pyran-2-yl)thiazole-4-carboxamide