Sodium ethanethiolate → HCID 178515881, compound

Participants

Reaction Conditions

Reaction Steps

To a solution of trans-4-[(8-methoxyquinazolin-2-yl)amino]cyclohexanol (5.90 g, 21.6 mmol) in DMF (300 mL) was added sodium ethanethiolate (5.45 g, 65 mmol) and the mix heated to 11° C. for 3 hours under nitrogen. The reaction was cooled to ambient temperature and the DMF removed in-vacuo. The residue was diluted with MeOH (20 mL), DCM (200 mL) and EtOAc (100 mL) and then acidified with 1 M HCl to pH=1. The mix was concentrated in-vacuo where a yellow ppt crashed out. This was filtered off, washed with water (2×50 mL), EtOAc (100 mL) and dried to yield the title compound as a yellow solid, 4.9 g, 88%. 1H NMR (400 MHz, DMSO-D6) δ ppm 9.00 (2H, s) 7.21 (1H, d, J=6.32 Hz) 7.16 (1H, s) 6.98-7.09 (2H, m) 4.55 (1H, s) 3.36 (2H, d, J=23.75 Hz) 1.86 (4H, dd, J=28.30, 8.59 Hz) 1.22-1.48 (4H, m); MS (API+) for C14H17N3O2 m/z 260.2 (M+H)+.

Provenance & Evidence