tert-butyl 3-{3-[{(3R)-5-[bis(tert-butoxycarbonyl)carbamoyl]-8-fluoro-3,4-dihydro-2H-chromen-3-yl}(propyl)amino]propyl}-5-fluoro-1H-indole-1-carboxylate 、
甲胺 以
四氢呋喃 为溶剂,
以62%的产率得到tert-butyl 3-{3-[{(3R)-5-[(tert-butoxycarbonyl)carbamoyl]-8-fluoro-3,4-dihydro-2H-chromen-3-yl}(propyl)amino]propyl}-5-fluoro-1H-indole-1-carboxylate