Trimethyl(3S,4S,7S,13S,14S,20S,23S,24S)-4,23-bis(benzoyloxy)-14-{[((1S)-2-{[2-(benzyloxy)-2-oxoethyl]amino}-1-methyl-2-oxoethyl)amino]carbonyl}-7,20-dimethyl-1,5,8,11,16,19,22-heptaoxo-1-phenyl-2,12,15,25-tetraoxa-6,9,18,21-tetraazahexacosane-3,13,24... 在
palladium on activated charcoal
氢气 作用下,
以
1,4-二氧六环 为溶剂,
以100%的产率得到(4S,5S,8S,14S,15S,18S)-4,5-Bis(benzoyloxy)-15-({2-[((2S)-2-{[2-(2R,3R)-2-(benzoyloxy)-3,4-dimethoxy-4-oxobutanoyl]amino}propanoyl)amino]acetyl}oxy)-14-(methoxycarbonyl-8,18-dimethyl-3,6,9,12,16,19-hexaoxo-2,13-dioxa-7,10,17,20-tetraazadocosan-22-oic ...