benzyl ((3S,5'S,8'S)-7-bromo-6'-((tert-butoxycarbonyl)oxy)-4'-formyl-8'-isopropyl-2,6'-dioxospiro[indoline-3,2'-7-aza-1(5,2)-oxazola-3(1,3)-benzenacyclooctaphan]-5'-yl)carbamate 在
sodium chlorite 、
sodium dihydrogenphosphate 、
间苯二酚 作用下,
以
二甲基亚砜 为溶剂,
反应 2.0h,
以0.072 g的产率得到(2S,7S,10S)-7'-bromo-15-[(2-methylpropan-2-yl)oxycarbonyloxy]-2',9-dioxo-10-(phenylmethoxycarbonylamino)-7-propan-2-ylspiro[17-oxa-5,8-diazatricyclo[10.3.1.13,6]heptadeca-1(15),3,5,12(16),13-pentaene-2,3'-1H-indole]-4-carboxylic acid