HCID 46184153, compound → HCID 46183673, compound

Participants

Reaction Steps

A suspension of {2-[3-bromo-4-(4-trifluoromethylpyridin-2-yloxy)-phenyl]-ethyl}-(5,8-difluoroquinazolin-4-yl)-amine) (137 mg, 0.26 mmol), CuCN (164 mg, 1.83 mmol) and DMF (10 mL) was heated at 126° for 3 h, then heated at reflux overnight. After addition of more CuCN (100 mg), the reaction was heated at reflux 2 h, then concentrated in vacuo. The residue was partitioned between water (10 mL) and EtOAc (10 mL). The aqueous layer was extracted with EtOAc (2×10 mL) and the pooled organic fractions were dried (Na2SO4), filtered through a silica gel/Celite plug and concentrated in vacuo to provide 5-[2-(5,8-difluoroquinazolin-4-ylamino)-ethyl]-2-(4-trifluoromethylpyridin-2-yloxy)-benzonitrile (70 mg) as an off-white powder (94% purity by LC), 57% yield, M.P. 157-159°. 1H NMR (CDCl3): δ 8.7 (bs, 1H), 8.29 (d, 1H), 7.62 (d, 1H), 7.57 (dd, 1H), 7.38 (m, 1H), 7.29 (s, 1H), 7.27 (s, 1H), 7.26 (m, 1H), 7.04 (m, 1H), 6.76 (bm, 1H), 3.96 (m, 2H), 3.10 (t, 2H). MS: m/z 471.

Provenance & Evidence