2,6-Lutidine → HCID 178433630, compound

Participants

Reaction Steps

To a solution of the product of Example 68 (0.6 g, 1.5 mmol), 2,6-lutidine (0.72 ml, 6.2 mmol) and lithium chloride (0.262 g, 6.2 mmol) in N,N-dimethylformamide (6 ml) at 0° C. was added methanesulphonyl chloride (0.36 ml, 4.6 mmol) dropwise and the solution allowed to warm to ambient temperature with stirring for 7 hours. The solvent was removed in vacuo and the crude product purified by flash chromatography (silica gel, 5% MeOH/CH2Cl2) to give the product as a yellow solid (0.463 g, 74%). 1H NMR (360 MHz, DMSO-d6) δ12.49 (1H, br s), 8.59 (1H, s), 8.13 (2H, d, J 9.0 Hz), 7.59 (4H, m), 7.41 (2H, d, J 9.0 Hz), 4.75 (2H, s), 2.26 (3H, s); MS (ES+) m/z 408/410/412 [MH]+.

Provenance & Evidence