ethyl 2-[[(2S)-2-[(2-methylpropan-2-yl)oxycarbonylamino]-3-[4-[(2-methylpropan-2-yl)oxycarbonyloxy]phenyl]propanoyl]-[[(1S,2R,6R,8R,9S)-4,4,11,11-tetramethyl-3,5,7,10,12-pentaoxatricyclo[7.3.0.02,6]dodecan-8-yl]methyl]amino]acetate 在
N-甲基吗啉 、
sodium hydroxide 、 4 A molecular sieve 、
水 、 (benzotriazo-1-yloxy)tris(dimethylamino)phosphonium hexafluorophosphate 、
1-羟基苯并三唑 、 bromo-tris(1-pyrrolidinyl)phosphonium hexafluorophosphate 作用下,
以
甲醇 、
二氯甲烷 为溶剂,
反应 7.08h,
生成 N-(tert-butoxycarbonyl)-L-tyrosyl-N-(6-deoxy-1,2:3,4-di-O-isopropylidene-α-D-galactos-6-yl)glycyl-N-(6-deoxy-1,2:3,4-di-O-isopropylidene-α-D-galactos-6-yl)glycyl-L-phenylalanyl-L-leucine benzyl ester