Bromine → HCID 178423301, compound

Participants

Reaction Conditions

Reaction Steps

To an oven-dried, 50-mL, round-bottomed flask was added 2-methyl-6-phenyl-4-(piperidinyl)pyrrolo[3,2-d]pyrimidine (Example 35)) (500 mg, 1.71 mmol) which was dissolved in glacial AcOH (15 mL). To this solution was added Br2 (Aldrich Chemical Company) (90.0 mL, 1.8 mmol) dropwise over 2 min. The resulting dark mixture was diluted with H2O (10 mL) and the mixture was warmed to 45° C. and stirred for 2 h. The reaction was allowed to cool to room temperature and the crude material was extracted with EtOAc (50 mL) and washed with saturated NaHCO3 (3×50 mL). The organic layer was washed with brine (50 mL), dried over MgSO4, filtered and evaporated in vacuo to give an oily residue. The residue was purified by silica gel chromatography with 50% EtOAc/hexanes as eluant to give 500 mg (79.4% yield) of a yellow solid. Mp: 239-240 ° C. 1H NMR (DMSO-d6; 400 MHz): d 1.74 (s, 6), 2.63 (s, 3), 3.83 (s, 4), 7.44 (t, 1, J=2.4), 7.5 (t, 2, J=7.0), 7.80 (d, 2, J=7.1). MS m/z: 373.0 (M+1); 369.0, 371.0 (M−1).

Provenance & Evidence