tert-butyl 4-(5-(4-(butyloxycarbonylaminomethyl)piperidin-1-yl)-1-methyl-1H-pyrazol-4-ylcarbamoyl)-2-bromothiazol-5-ylcarbamate 、
环戊烯-1-基硼酸 以gave 256 as an off-white solid (23 mg, 29% over two steps)的产率得到5-amino-N-(5-(4-(aminomethyl)piperidin-1-yl)-1-methyl-1H-pyrazol-4-yl)-2-cyclopentenylthiazole-4-carboxamide