Hydrochloric Acid → HCID 67387040, compound

Participants

Reaction Steps

To a solution of 5-[3-butyl-6-(1-methyl-piperidin-4-yloxy)-pyridazin-4-yl]-2-cyclohexyloxy-phenylamine (Example 62, 0.5 mmol, 219 mg) in dry THF (1.0 mL) was added tert-butyl isocyanate (1.5 mmol, 149 mg), and the mixture was stirred at room temperature over night. It was then condensed in vacuo and the residue was purified by silica gel chromatography (DCM to DCM+10% 2N NH3 in MeOH) to give a colorless sticky solid, which was dissolved in DCM (5.0 mL), 2N HCl in ether (5.0 mL) was added, kept at room temperature for 10 min, condensed, triturated with hexanes to provide the title compound (193 mg). LCMS: m/z 539 [M+1]. 1H NMR (400 MHz, CD3OD): δ 8.09-8.12 (1H, m), 7.55 and 7.65 (1H, s), 7.12-7.18 (1H, m), 7.00-7.08 (1H, m), 5.36-5.56 (1H, m), 4.41-4.48 (1H, m), 3.25-3.67 (4H, m), 3.08-3.15 (2H, m), 2.93 (3H, s), 2.02-2.58 (6H, m), 1.83-1.89 (2H, m), 1.40-1.70 (8H, m), 1.38 (9H, s), 1.26-1.36 (2H, m), 0.83 (3H, t).

Provenance & Evidence