tert-butyl N-[[4-[2-[4-[4-[[(2-methylpropan-2-yl)oxycarbonylamino]methyl]phenoxy]-1-oxidopyridin-2-ylidene]-1-oxopyridin-1-ium-4-yl]oxyphenyl]methyl]carbamate 在
palladium on activated charcoal
sodium hypophosphite 、
溶剂黄146 作用下,
以
乙醇 为溶剂,
反应 15.0h,
以78%的产率得到(4-{4'-[4-(tert-Butoxycarbonylamino-methyl)-phenoxy]-[2,2']bipyridinyl-4-yloxy}-benzyl)-carbamic acid tert-butyl ester