Chloroacetyl chloride → HCID 11598700, compound

Participants

Reaction Steps

1-(2-phenylquinolin-7-yl)-3-(piperidin-4-ylmethyl)-imidazo-[1,5-a]-pyrazin-8-amine (110.00 mg, 0.25 mmol) in a dried 15 mL round bottom flask was dissolved in 2.00 mL of methylene chloride and was charged with PS-DIEA (150 mg, 0.46 mmol). Chloroacetyl chloride (10 μL, 0.42 equiv) was added in one portion. After 10 min., another 5 μL of chloroacetyl chloride (0.21 equiv) was added. After another 10 min., another 2.5 μL of methoxylacetyl (0.11 equiv) was added. The reaction was filtered through a fritted funnel, and the resins were rinsed multiple times with methylene chloride. The crude product was purified by a 5 g Jones silica gel (dry loaded with silica, wetted with 100% ethyl acetate and eluted with 5% NH3 in MeOH/Ethyl Acetate) and afforded the desired product; 1H NMR (400 MHz, CHLOROFORM-d) δ 8.74 (1H, s), 8.30 (1H, d, J=8.68), 8.21 (2H, d, J=7.01), 7.98 (2H, m), 7.86 (1H, dd, J=1.70, J=1.70), 7.53 (3H, m), 7.24 (1H, d, J=5.34), 7.08 (1H, d, J=5.31), 4.63 (1H, d, J=13.24), 3.90 (1H, d, J=13.2), 3.15 (1H, t), 2.97 (2H, d, J=5.64), 2.70 (1H, t), 2.34 (1H, m), 2.05 (2H, s), 1.92 (2H, t), 1.42 (2H, m); MS (ES+): m/z 511.06/513.02 (50/25) [MH+]; HPLC: tR=2.20 min (OpenLynx, polar—5 min).

Provenance & Evidence