Acetic Anhydride → N-{1-[8-(2-chlorophenyl)-9-(4-chlorophenyl)-9H-purin-6-yl]-4-phenylpiperidin-4-yl}acetamide

Participants

Reaction Steps

A solution of 1-[8-(2-chlorophenyl)-9-(4-chlorophenyl)-9H-purin-6-yl]-4-phenylpiperidin-4-amine (6 mg, 0.011 mmol, 1 eq.) in 1 mL of acetic anhydride and 1 mL of pyridine was stirred for 16 h. The reaction was concentrated in vacuo. The crude material was purified by silica gel column chromatography using 0-100% ethyl acetate/hexanes to yield 6 mg (95%) of desired N-{1-[8-(2-chlorophenyl)-9-(4-chlorophenyl)-9H-purin-6-yl]-4-phenylpiperidin-4-yl}acetamide. Compound was determined to be 95% pure by 1H NMR. 1H NMR (300 MHz, CHLOROFORM-d) δ ppm 1.95-2.11 (m, 3 H) 2.15-2.39 (m, 2 H) 2.60 (d, J=13.56 Hz, 2 H) 3.69 (br. s., 2 H) 5.23 (br. s., 2 H) 5.71 (br. s., 1 H) 7.10-7.60 (m, 13 H) 8.31-8.48 (m, 1 H), [M−H]− 554.5.

Provenance & Evidence