Potassium Carbonate → HCID 10415222, compound

Participants

Reaction Conditions

Reaction Steps

Methyl 3,6-anhydro-2-O-methyl-5-O-(methylsulfonyl)-β-D-glucofuranoside (314 mg, 1.1 mmol) was dissolved in DMF (3 mL). To this solution was added potassium carbonate (404 mg, 2.9 mmol) and 4-[(4-bromo-3-chlorophenyl)amino]-6-methyloxy-7-hydroxyquinazoline trifluoroacetate (280 mg, 0.59 mmol). The resulting mixture was heated at 135° C. for 18 h. After cooling to room temperature the reaction mixture was diluted with ethyl acetate (15 mL), washed with water, dried over anhydrous sodium sulfate, filtered and concentrated. The residue was purified by flash chromatography (silica gel, 2-7% methanol in 1:1 ethyl acetate:hexanes) to give methyl 3,6-anhydro-5-O-[4-[(4-bromo-3-chlorophenyl)amino]-6-(methyloxy)quinazolin-7-yl]-2-O-methyl-α-L-idofuranoside as a white solid, 181 mg, 28% yield. 1H NMR (400 MHz; Methanol-d4): 8.75 (s, 1H), 8.04-8.06 (d, 1H), 7.99 (s, 1H), 7.78-7.75 (d, 1H), 7.64-7.61 (d, 1H), 7.35 (s, 1H), 5.16-5.14 (d, 1H), 5.02 (s, 1H), 4.89 (br, 1H), 4.69-4.68 (d, 1H) 4.46-4.42 (dd, 1H), 4.09 (br, 1H), 4.06 (s, 3H), 3.69(s, 1H), 3.48(s, 3H), 3.42 (s, 3H); MS (EI) for C23H23BrClN3O6: 551.88 (MH+).

Provenance & Evidence