Isobutyryl chloride → N-{(1S,2R,3S,4R)-4-[2-Chloro-6-(2,2-diphenyl-ethylamino)-purin-9-yl]-2,3-dihydroxy-cyclopentyl}-isobutyramide

Participants

Reaction Steps

The title compound is prepared by the same method as cyclobutanecarboxylic acid {(1S,2R,3S,4R)-4-[2-chloro-6-(2,2-diphenyl-ethylamino)-purin-9-yl]-2,3-dihydroxy-cyclopentyl}-amide from (1S,2R,3S,5R)-3-amino-5-[2-chloro-6-(2,2-diphenyl-ethylamino)-purin-9-yl]-cyclopentane-1,2-diol hydrochloride (an intermediate for preparing the compound of Example 22) and isobutyryl chloride to afford the title compound. LCMS (electrospray): m/z [MH+] 535.26. 1H nmr (MeOD, 400 MHz); 8.00(s, 1H), 7.40-7.30(m, 8H), 7.25-7.15(m, 2H), 4.75(m, 1H), 4.60(m, 1H), 4.50(m, 1H), 4.20(m, 2H), 3.95(m, 1H), 2.85(m, 1H), 2.70(m, 1H), 9.10(m, 1H), 1.20(m, 6H)

Provenance & Evidence