(2,3,4,5,6-pentafluorophenyl) 6-[[(4S,5S)-5-[(4R,5R)-5-[[6-[[(4S,5S)-5-[(4R,5R)-5-(azidomethyl)-2,2-dimethyl-1,3-dioxolan-4-yl]-2,2-dimethyl-1,3-dioxolane-4-carbonyl]amino]hexanoylamino]methyl]-2,2-dimethyl-1,3-dioxolan-4-yl]-2,2-dimethyl-1,3-dioxolane-4-carbonyl]amino]hexanoate 在
钯 氢气 作用下,
以
1,4-二氧六环 为溶剂,
以79%的产率得到(1R,2S,6S,17R,21R,22S,26S,37R)-4,4,19,19,24,24,39,39-octamethyl-3,5,18,20,23,25,38,40-octaoxa-8,15,28,35-tetrazapentacyclo[35.3.0.02,6.017,21.022,26]tetracontane-7,14,27,34-tetrone