(9H-fluoren-9-yl)methyl 2-[(6-{[(benzyloxy)carbonyl]amino}-9-{2-[2-{[6-{[(benzyloxy)carbonyl]amino}-9-(2-{2-[(3-{2-[2-{[3-(2-tert-butoxy-2-oxoethyl)-2,6-dioxo-1,2,3,6-tetrahydropyrimidin-4-yl]methyl}-2-(2-ethoxy-2-oxoethyl)hydrazinyl]-2-oxoethyl}-2,6-dioxo-1,2,3,6-tetrahydropyrimidin-4-yl)methyl]-2-(2-ethoxy-2-oxoethyl)hydrazinyl}-2-oxoethyl)-9H-purin-8-yl]methyl}-2-(2-ethoxy-2-oxoethyl)hydrazinyl]-2-oxoethyl}-9H-purin-8-yl)methyl]-2-(2-ethoxy-2-oxoethyl)hydrazinecarboxylate 在
氢气 、 palladium diacetate 作用下,
以
甲醇 、
二氯甲烷 为溶剂,
反应 144.0h,
以69%的产率得到(9H-fluoren-9-yl)methyl 2-[(6-amino-9-{2-[2-{[6-amino-9-(2-{2-[(3-{2-[2-{[3-(2-tert-butoxy-2-oxoethyl)-2,6-dioxo-1,2,3,6-tetrahydropyrimidin-4-yl]methyl}-2-(2-ethoxy-2-oxoethyl)hydrazinyl]-2-oxoethyl}-2,6-dioxo-1,2,3,6-tetrahydropyrimidin-4-yl)methyl]-2-(2-ethoxy-2-oxoethyl)hydrazinyl}-2-oxoethyl)-9H-purin-8-yl]methyl}-2-(2-ethoxy-2-oxoethyl)hydrazinyl]-2-oxoethyl}-9H-purin-8-yl)methyl]-2-(2-ethoxy-2-oxoethyl)hydrazinecarboxylate