(2S)-2-[[2-[4-bromo-2-[[7-methoxy-6-[3-(3-morpholin-4-ylpropylamino)propoxy]quinazolin-4-yl]amino]phenyl]acetyl]amino]-4-methylpentanoic acid 在
N-羟基-7-氮杂苯并三氮唑 、
N,N-二异丙基乙胺 、 Methanaminium,N-[(dimethylamino)(3H-1,2,3-triazolo[4,5-b]pyridin-3-yloxy)methylene]-N-methyl-, hexafluorophosphate(1-) 作用下,
以
异丁酰胺 为溶剂,
以100%的产率得到(12S)-5-bromo-20-methoxy-12-(2-methylpropyl)-14-(3-morpholin-4-ylpropyl)-18-oxa-2,11,14,23,25-pentazatetracyclo[17.6.2.03,8.022,26]heptacosa-1(25),3(8),4,6,19,21,23,26-octaene-10,13-dione