tert-butyl 4-(2-(((4-((1R,4R,5R)-5-(tert-butoxycarbonylamino)-2-azabicyclo[2.2.1]heptan-2-yl)-6-fluoro-2-(2-methylpyrimidin-5-yloxy)-9H-pyrimido[4,5-b]indol-8-yl)(methyl)carbamoyloxy)methoxy)-2-oxoethyl)piperazine-1-carboxylate 在
三氟乙酸 、 crude product 作用下,
以
三氟乙酸 为溶剂,
反应 0.25h,
以to give 8 (0.105 g, 0.165 mmol, 76%) as white solid的产率得到((4-((1R,4R,5R)-5-amino-2-azabicyclo[2.2.1]heptan-2-yl)-6-fluoro-2-(2-methylpyrimidin-5-yloxy)-9H-pyrimido[4,5-b]indol-8-yl)(methyl)carbamoyloxy)methyl 2-(piperazin-1-yl)acetate