tert-butyl [[5-[4-[(5-cyclopropyl-1H-pyrazol-3-yl)amino]-5-ethynyl-pyrimidin-2-yl]-2-thienyl]methylamino]formate 、
盐酸 在
crude product 、 THF isopropyl 、
2-[5-(aminomethyl)-2-thienyl]-N-(5-cyclopropyl-1H-pyrazol-3-yl)-5-ethynyl-pyrimidin-4-amine hydrochloride 作用下,
以
乙醇 为溶剂,
反应 12.0h,
以to afford 2-(5-(aminomethyl)thiophen-2-yl)-N-(5-cyclopropyl-1H-pyrazol-3-yl)-5-ethynylpyrimidin-4-amine hydrochloride (Compound 167) (41.4 mg, 20.9%, two steps)的产率得到2-[5-(aminomethyl)-2-thienyl]-N-(5-cyclopropyl-1H-pyrazol-3-yl)-5-ethynyl-pyrimidin-4-amine hydrochloride