tert-butyl (4-((1R,4R,5R)-5-((tert-butoxycarbonyl)amino)-2-azabicyclo[2.2.1]heptan-2-yl)-2-((2-((1R)-1-((ethoxy(hydroxy)phosphoryl)oxy)ethyl)pyrimidin-5-yl)oxy)-6-fluoro-9H-pyrimido[4,5-b]indol-8-yl)(methyl)carbamate 在
氮气 、
三氟乙酸 、 crude product 、 H+ 作用下,
以
三氟乙酸 为溶剂,
反应 0.25h,
以to give 3 (0.030 g, 0.052 mmol, 95%) as white solid (LC/MS (ESI, M+H+)=573)的产率得到(R)-1-(5-((4-((1R,4R,5R)-5-Amino-2-azabicyclo[2.2.1]heptan-2-yl)-6-fluoro-8-(methylamino)-9H-pyrimido[4,5-b]indol-2-yl)oxy)pyrimidin-2-yl)ethyl ethyl hydrogen phosphate