Benzoyl chloride → N-{[9-[(2R,3R,4S,5R)-3,4-Dihydroxy-5-(methoxymethyl)tetrahydro-2-furanyl]-6-[(2,2-diphenylethyl)amino]-9H-purin-2-yl]methyl}benzamide

Participants

Reaction Steps

A stirred solution of (2R,3R,4S,5R)-2-{2-(aminomethyl)-6-[(2,2-diphenylethyl)amino]-9H-purin-9-yl}-5-(methoxymethyl)tetrahydro-3,4-furandiol (example 1) (110 mg, 0.22 mmol) in dry tetrahydrofuran (20 ml) was treated with triethylamine (0.1 ml, 0.72 mmol) and the mixture heated gently until all components had dissolved. The solution was then cooled to room temperature, treated with a solution of benzoyl chloride (28 mg, 0.20 mmol) in dry tetrahydrofuran (2 ml) and the mixture stirred for 1.5 hr. The solvent was removed under reduced pressure and the residue purified by column chromatography on silica gel eluting with a solvent system of dichloromethane:methanol (95:5), to give the product which was then triturated with a mixture of diethyl ether and pentane, filtered off and dried to afford the title compound as a solid (80 mg). MS: 595 (MH+).

Provenance & Evidence