Potassium Carbonate → HCID 66838496, compound

Participants

Reaction Steps

A solution of (8aR)-6-(chloromethyl)tetrahydro-1H-[1,3]thiazolo[4,3-c][1,4]oxazine (11.6 mg, 0.0599 mmol), 4-[(3,4-dichlorophenyl)amino]-6-(methyloxy)quinazolin-7-ol trifluoroacetate (salt) (30.0 mg, 0.0644 mmol), and potassium carbonate (45.0 mg, 0.326 mmol) in N,N-dimethylacetamide (1.0 mL) was heated in a sealed tube to 150° C. for 12 h. The crude reaction mixture was directly purified via reverse-phase preparative HPLC (acetonitrile/water/0.1% TFA). Lyophillization of the pure fractions yielded 3.5 mg (8.9%) of N-(3,4-dichlorophenyl)-6-(methyloxy)-7-{[(8aR)-tetrahydro-1H-[1,3]thiazolo[4,3-c][1,4]oxazin-6-ylmethyl]oxy}quinazolin-4-amine trifluoroacetate. 1H NMR (400 MHz, d6-DMSO): 8.80 (s, 1H), 8.11 (s, 1H), 7.99 (s, 1H), 7.74 (s, 2H), 7.29 (s, 1H), 4.29 (d, 2H), 4.11 (m, 2H), 4.00 (s, 3H), 3.96 (m, 1H), 2.99 (m, 2H), 2.56 (t, 1H), 2.367 (m, 1H); MS (EI) for C22H22N4O3SCl2: 492 (MH+).

Provenance & Evidence