Methyl iodide → HCID 68291095, compound

Participants

Reaction Steps

Iodomethane (0.069 ml, 1.111 mmol) was added in one portion to a stirred solution of (R)-4-(1-cyclopropylethylamino)-6-(5-thioxo-4,5-dihydro-1,3,4-oxadiazol-2-yl)pyrrolo[1,2-b]pyridazine-3-carboxamide (Example 126, 306 mg, 0.889 mmol) and triethylamine (0.310 ml, 2.221 mmol) in absolute EtOH (3.55 ml). The reaction mixture was allowed to stir at rt for 2 hrs before evaporating in vacuo. The residue was then partitioned between 1N HCl and ethyl acetate. The organic layer was dried (MgSO4) and evaporated in vacuo. The residue was treated with MeOH and the solid filtered to give the title compound (135 mg, 0.377 mmol, 42.4% yield) as a white solid. The filtrate (which contained the remainder of the product) was evaporated and retained. HPLC (condition B): retention time=3.98 min. LCMS (condition B): MH+ m/z 358.9. 1H NMR (500 MHz, DMSO-d6) δ ppm 10.88 (1 H, d, J=8.32 Hz), 8.31 (1 H, s), 8.27 (1 H, d, J=1.66 Hz), 7.32 (1 H, d, J=1.94 Hz), 3.89-4.04 (1 H, m), 3.30 (3 H, s), 1.34 (3 H, d, J=6.38 Hz), 1.01-1.20 (1 H, m), 0.44-0.58 (2 H, m), 0.35-0.44 (1 H, m), 0.20-0.35 (1 H, m).

Provenance & Evidence