在
氢气 、 palladium diacetate 作用下,
以
甲醇 为溶剂,
反应 22.0h,
以5%的产率得到ethyl {2-acetyl-1-[(6-amino-9-{2-[2-{[3-(2-{2-[(6-amino-9-{2-[2-{[3-(2-{2-[(6-amino-9-{2-[2-{[3-(2-{2-[(6-amino-9-{2-[2-{[3-(2-amino-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)-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)-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)-2,6-dioxo-1,2,3,6-tetrahydropyrimidin-4-yl]methyl}-2-(2-ethoxy-2-oxoethyl)hydrazinyl]-2-oxoethyl}-9H-purin-8-yl)methyl]hydrazinyl}acetate