(2R,3R,4S,5S)-4-(benzoyloxy)-2-(6-chloro-2-iodo-9H-purin-9-yl)-5-[(ethylamino)carbonyl]tetrahydro-3-furanyl benzoate → (2R,3R,4S,5S)-4-(benzoyloxy)-2-(6-{[2,2-bis(3-methylphenyl)ethyl]amino}-2-iodo-9H-purin-9-yl)-5-[(ethylamino)carbonyl]tetrahydro-3-furanyl benzoate

関与物質

反応手順

A solution of ((2R,3R,4S,5S)-4-(benzoyloxy)-2-(6-chloro-2-iodo-9H-purin-9-yl)-5-[(ethylamino)carbonyl]-tetrahydro-3-furanyl benzoate (Preparation 47) (0.6 g, 0.91 mmol) and 2,2-bis(3-methylphenyl)ethylamine (0.3 g, 1.36 mmol) in isopropanol (20 ml) was stirred at room temperature for 48 hours. Solvent was removed under reduced pressure and the residue purified by column chromatography on silica gel eluting with dichloromethane:methanol (99:1, by volume) to afford the title compound as a beige foam (0.67 g, 87%).

情報源と証拠