富马酸 、
1-[2-cyclopropyl-6-(3-fluoro-azetidin-1-yl)-pyrimidin-4-yl]azepane 在
异丙醚 、 1-[2-cyclopropyl-6-(3-fluoro-azetidin-1-yl)-pyrimidin-4-yl]azepane fumarate (3:2) 作用下,
以
异丙醇 、
异丙醚 为溶剂,
以to afford pure 1-[2-cyclopropyl-6-(3-fluoro-azetidin-1-yl)-pyrimidin-4-yl]azepane fumarate (3:2) 195 (1.2 g, 58%)的产率得到1-[2-cyclopropyl-6-(3-fluoro-azetidin-1-yl)-pyrimidin-4-yl]azepane fumarate (3:2)