tert-butyl N-[(3aS,4R,7S,7aS)-7-[dimethyl(propan-2-yl)silyl]oxy-2,2-dimethyl-3a,4,7,7a-tetrahydro-1,3-benzodioxol-4-yl]-N-(6-iodo-1,3-benzodioxole-5-carbonyl)carbamate 在
palladium diacetate 、
thallium(I) acetate 、
1,2-双(二苯基膦)乙烷 作用下,
以
苯甲醚 为溶剂,
反应 4.0h,
以35%的产率得到tert-butyl (13R,14S,18S,19S)-19-[dimethyl(propan-2-yl)silyl]oxy-16,16-dimethyl-11-oxo-5,7,15,17-tetraoxa-12-azapentacyclo[11.7.0.02,10.04,8.014,18]icosa-1(20),2,4(8),9-tetraene-12-carboxylate