tert butyl (2R,4aR)-10-bromo-7,11-dichloro-9-fluoro-2-methyl-5-carbonyl-4,4a,5,6-tetrahydro-1H-pyridazo[1',2':4,5]pyrazo[2,3-c]quinoline-3(2H)-carboxylate 、
(R)-1-Azido-3-(tert-butyl-dimethyl-silanyloxy)-propan-2-ol 在
sodium hydride 作用下,
以
甲苯 为溶剂,
以45.42 %的产率得到(2R,4aR)-tert-butyl-7-(((R)-1-azido-3-((tert-butyldimethylsilyl)oxo)propan-2-yl)oxo)-10-bromo-11-chloro-9-fluoro-2-methyl-5-oxa-4,4a,5,6-tetrahydro-1H-pyranazido[1',2',4,5] pyrazino[2,3-c]quinoline-3(2H)-carboxylate