Cesium carbonate → 3-(2-morpholin-4-yl-2-oxoethoxy) 10,11-dihydro-8H-[1,4]oxazino[4',3':1,2]imidazo[4,5-c]quinolin-6-amine

Participants

Reaction Conditions

Reaction Steps

A glass vial was charged with 4-(bromoacetyl)morpholine (0.05 g, 0.26 mmol, 1.1 eq), 6-amino-10,11-dihydro-8H-[1,4]oxazino[4′,3′:1,2]imidazo[4,5-c]quinolin-3-ol (0.06 g, 0.23 mmol), DMF (3 mL), and cesium carbonate (0.42 g, 1.3 mmol, 5 eq). The reaction mixture was heated at 90° C. overnight. The reaction was quenched with 30 mL water to provide an off-white precipitate. The solid was collected by vacuum filtration and recrystallized from acetonitrile to provide 0.011 g of 3-(2-morpholin-4-yl-2-oxoethoxy) 10,11-dihydro-8H-[1,4]oxazino[4′,3′:1,2]imidazo[4,5-c]quinolin-6-amine, mp 204-206° C.

Provenance & Evidence