Sodium Iodide → HCID 57752713, compound

Participants

Reaction Steps

1-{3-[8-(1-Ethyl-propyl)-2,6-dimethyl-imidazo[1,2-b]pyridazin-3-yl]-2-methyl-benzofuran-7-yl}-ethanol (0.64 g, 1.63 mmol) is dissolved in CH2Cl2 (20 mL), treated with Et3N (0.27 mL, 1.95 mmol) and MsCl (0.14 mL, 1.79 mmol). The reaction is stirred at rt overnight. It is diluted with CH2Cl2 (40 mL), washed with H2O (2×40 mL); dried with Na2SO4; filtered and concentrated. The resulting crude material is dissolved in acetone (20 mL), refluxed with NaI (0.31 g, 2.04 mmol) overnight. The organic solvent is removed in vacuo, the residue is taken up with H2O (30 mL) and extracted with EtOAc (2×30 mL); the combined organic layers are dried with Na2SO4; filtered and concentrated. Purification of the crude material by chromatography gives the title compound (0.28 g, 0.75 mmol, 46%). 1H NMR (CDCl3): δ. 0.90 (t, J=7.0 Hz, 3H), 0.91 (t, J=7.0 Hz, 3H), 1.76-1.95 (m, 4H), 2.45 (s, 3H), 2.46 (s, 3H), 2.47 (s, 3H), 3.32-3.44 (m, 1H), 5.52 (dd, J=11.5, 1.3 Hz, 1H), 6.23 (dd, J=19.0, 1.3 Hz, 1H), 6.68 (s, 1H), 7.04 (dd, J=19.0, 11.5 Hz, 1H), 7.15 (d, J=1.3 Hz, 1H), 7.16 (s, 1H), 7.29 (t, J=4.8 Hz, 1H) ppm. ES-MS (m/z): calcd for C24H27N3O (M+H)+: 374.5. found: 374.2.

Provenance & Evidence