Dimethylformamide → 4-Methyl-3-(9H-pyrimido[4,5-b]indol-6-yl)-N-[3-(trifluoromethyl)phenyl]benzamide

Participants

Reaction Steps

4′-[(5-Iodopyrimidin-4-yl)amino]-6-methyl-N-[3-(trifluoromethyl)phenyl]biphenyl-3-carboxamide (0.168 g, 0.000292 mol) was mixed with palladium acetate (0.013 g, 0.000058 mol), tri-o-tolylphosphine (0.036 g, 0.00012 mol) and sodium acetate (0.036 g, 0.00044 mol) in DMF (2.0 mL, 0.026 mol) and the mixture was heated to reflux for 4 hours. Mass spectral analysis showed ˜60% conversion. The reaction was continued for 2.5 hours at which time LCMS analysis showed ˜75% conversion. The reaction was extracted with ethyl acetate and the organic extracts were washed with water, saturated NaCl, dried (MgSO4) and concentrated in vacuo. The concentrate was chromatographed on silica gel using 2:1 EtOAc/hexanes to give the product (75 mg, 57% yield). 1H NMR (CDCl3): 9.23 (s, 1H), 9.10 (brs, 1H), 9.06 (s, 1H), 8.08 (s, 1H), 7.80-8.00 (m, 5H), 7.39-7.84 (m, 5H), 2.39 (s, 3H). MS (EI) m/z=447 (M+H).

Provenance & Evidence