8-bromo-2-(2-isopropyl-2H-[1,2,4]triazol-3-yl)-4,5-dihydro-6-oxa-1,3a-diaza-benzo[e]azulene → HCID 67050676, compound

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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 (300 mg, 0.8 mmol), Pd(PPh3)4 (93 mg, 0.08 mmol), 1-(2-(tert-butyldimethylsilyloxy)-2-methylpropyl)-2-methyl-4-(trimethylstannyl)-1H-imidazole (690 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 (pure EtOAc) to give 160 mg of 9-(1-(2-(tert-butyldimethylsilyloxy)-2-methylpropyl)-2-methyl-1H-imidazol-4-yl)-2-(1-isopropyl-1H-1,2,4-triazol-5-yl)-5,6-dihydrobenzo[f]imidazo[1,2-d][1,4]oxazepine. Yield=46%. LC-MS: m/z=548 [M+H+]

Provenance & Evidence