(S)-2-(3-methylpiperazin-1-yl)ethanol 、 (6aR)-8-tert-butoxycarbonyl-3-(2-((tert-butoxycarbonyl)oxy)-6-fluorophenyl)-4-chloro-1-fluoro-6,6a,7,8,9,10-hexahydro-12H-pyrazino[2,1-c]pyrido[3,4-f][1,4]oxazepin-12-one 在
N,N-二异丙基乙胺 作用下,
以
乙腈 为溶剂,
生成 tert-butyl (6aR)-3-(2-((tert-butoxycarbonyl)oxy)-6-fluorophenyl)-4-chloro-1-((S)-4-(2-hydroxyethyl)-2-methylpiperazin-1-yl)-12-oxo-6a,7,9,10-tetrahydro-12H-pyrazino[2,1-c]pyrido[3,4-f][1,4]oxazepine-8(6H)-carboxylate