Methanesulfonyl chloride → HCID 11511851, 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 CH2Cl2 and charged with PS-DIEA (150.00 mg, 0.46 mmol). Methanesulfonyl chloride (10 μL, 0.47 equiv) was added in one portion. After 10 min., another 5 μL of methanesulfonyl chloride (0.24 equiv) was added. After another 10 min., another 2.1 μL of methanesulfonyl chloride (0.1 equiv) was added. The reaction was filtered through a fritted funnel, and the resins were rinsed multiple times with CH2Cl2. The crude product was purified by 5 g Jones silica gel (wetted with 100% CH2Cl2, dry loaded with silica, and eluted with 2% (7N NH3) in MeOH/CH2Cl2→5% (7N NH3) in MeOH/CH2Cl2) and afforded the desired product; 1H NMR (400 MHz, CHLOROFORM-d) δ 8.41 (1H, d, J=0.85), 8.29 (1H, d, J=8.86), 8.20 (2H, dd, J=1.51, J=1.12), 7.97 (2H, m), 7.86 (1H, dd, J=1.72, J=1.72), 7.53 (4H, m), 7.24 (1H, d, J=5.26), 7.08 (1H, d, J=6.75), 3.85 (2H, d, J=11.88), 2.98 (2H, d, J=7.08), 2.68 (2H, t), 2.20 (1H, m), 1.94 (2H, d, J=10.92), 1.50 (2H, m); MS (ES+): m/z 513.02/514.03 (80/70) [MH+]; HPLC: tR=2.17 min (OpenLynx, polar—5 min).

Provenance & Evidence