(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