Water → 2-(1-isopropyl-1H-1,2,4-triazol-5-yl)-9-(1-(tetrahydro-2H-pyran-2-yl)-1H-imidazol-5-yl)-5,6-dihydrobenzo[f]imidazo[1,2-d][1,4]oxazepine

Participants

Reaction Conditions

Reaction Steps

To a mixture of 9-bromo-2-(1-isopropyl-1H-1,2,4-triazol-5-yl)-5,6-dihydrobenzo[f]imidazo[1,2-d][1,4]oxazepine 250 mg, 0.67 mmol) and 1-(tetrahydro-2H-pyran-2-yl)-5-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)-1H-imidazole (204 mg, 0.73 mmol) in dry DMF (2.5 mL) under nitrogen was added CsF (254 mg, 1.68 mmol), CuI (13 mg, 0.067 mmol) and Pd(PPh3)4 (39 mg, 0.034 mmol). The reaction mixture was heated at 130° C. for 40 min under microwave. Cooled to room temperature, the resulting mixture was poured into water and extracted with EtOAc. Dried organics over sodium sulfate and purified by pre-TLC (100% EtOAc) to give 242 as a yellow solid (49.3 mg, yield: 17%). 1H NMR (DMSO-d6, 400 MHz): δ8.49 (d, J=8.4 Hz, 1H), 8.11 (s, 1H), 7.97 (s, 1H), 7.92 (s 1H), 7.28 (dd, J1=1.6 Hz, J2=8.4 Hz, 1H), 7.18 (d, J=6.8 Hz, 2H), 5.92-5.89 (m, 1H), 5.19 (d, J=9.2 Hz, 1H), 4.55-4.52 (m, 4H), 4.04 (d, J=11.2 Hz, 1H), 3.60-3.56 (m, 1H), 2.29-1.90 (m, 3H), 1.58-1.48 (m, 9H). MS: (ESI, m/z)=446 [M+H]+

Provenance & Evidence