(2R,3R,4R,5R)-4-(acetyloxy)-2-[(acetyloxy)methyl]-5-(6-{[2,2-bis(3-chlorophenyl)ethyl]amino}-2-cyano-9H-purin-9-yl)tetrahydro-3-furanyl acetate 生成 (2R,3R,4S,5R)-2-(2-(aminomethyl)-6-{[2,2-bis(4-methylphenyl)ethyl]amino}-9H-purin-9-yl)-5-(hydroxymethyl)tetrahydro-3,4-furandiol 、 (2R,3R,4S,5R)-2-(2-(aminomethyl)-6-{[2,2-bis(3-chlorophenyl)ethyl]amino}-9H-purin-9-yl)-5-(hydroxymethyl)tetrahydro-3,4-furandiol