8-bromo-2-(2-isopropyl-2H-[1,2,4]triazol-3-yl)-4,5-dihydro-6-oxa-1,3a-diaza-benzo[e]azulene → HCID 58204593, compound

Participants

Reaction Conditions

Reaction Steps

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 (300 mg, 0.8 mmol), Pd(PPh3)4 (93 mg, 0.08 mmol), 2-methyl-1-(2-(tetrahydro-2H-pyran-2-yloxy)ethyl)-4-(trimethylstannyl)-1H-imidazole (600 mg, 1.6 mmol) in dioxane (2 ml) was bubbled with N2 for about 2 min and then stirred at 120° C. for 35 min under the irradition of microwave. Filtered, concentrated and purified by pre-TLC (EtOAc) to give 130 mg of 256. Yield=32%. 1H NMR (CDCl3, 400 MHz): δ8.44-8.42 (m, 1 H, ArH), 7.81 (s, 1 H), 7.58 (s, 1 H), 7.48-7.46 (m, 1 H), 7.42 (d, J=1.6 Hz, 1 H), 7.19 (s, 1 H), 4.51-4.95 (m, 1 H), 4.45-4.44 (t, 1 H), 4.39-4.38 (m, 2 H), 4.38-4.37 (m, 2 H), 4.07-4.04 (m, 2 H), 4.00-4.97 (m, 1 H), 3.63-3.54 (m, 2 H), 3.40-3.36 (m, 1 H), 2.49 (s, 3 H), 1.76-1.60 (m, 4 H),1.48-1.47 (m, 2 H) LC-MS: m/z=504 [M+H+]

Provenance & Evidence