pyrimidine-4,6-dicarboxylic acid bis-{[3-amino-2-((R)-1-(tert-butoxycarbonyl)pyrrolidin-3-yloxy)-5-trifluoromethyl-phenyl]amide} 、
(E)-5-(2,3-二(叔-丁氧羰基)胍基)戊酸 在
(E)-5-(2,3-二(叔-丁氧羰基)胍基)戊酸 作用下,
以29.1的产率得到tert-butyl (3R)-3-[2-[5-[bis[(2-methylpropan-2-yl)oxycarbonylamino]methylideneamino]pentanoylamino]-6-[[6-[[3-[5-[bis[(2-methylpropan-2-yl)oxycarbonylamino]methylideneamino]pentanoylamino]-2-[(3R)-1-[(2-methylpropan-2-yl)oxycarbonyl]pyrrolidin-3-yl]oxy-5-(trifluoromethyl)phenyl]carbamoyl]pyrimidine-4-carbonyl]amino]-4-(trifluoromethyl)phenoxy]pyrrolidine-1-carboxylate