甲酸 、
4-[(4R)-3-[3-[3-[(4R)-4-(4-cyanophenyl)-6-ethyl-2,5-dioxo-1-[3-(trifluoromethyl)phenyl]-4,7-dihydropyrrolo[3,4-d]pyrimidin-3-yl]propyl-methylamino]propyl]-6-ethyl-2,5-dioxo-1-[3-(trifluoromethyl)phenyl]-4,7-dihydropyrrolo[3,4-d]pyrimidin-4-yl]benzonitrile 以
水 、
乙腈 为溶剂,
以14%的产率得到4,4'-((4R,4'R)-((methylazanediyl)bis(propane-3,1-diyl))bis(6-ethyl-2,5-dioxo-1-(3-(trifluoromethyl)phenyl)-2,3,4,5,6,7-hexahydro-1H-pyrrolo[3,4-d]pyrimidine-3,4-diyl))dibenzonitrile formate