6-fluoropyridine-2-carboxamide → 6-{[4-(6,6-Dimethyl-4-oxo-4,5,6,7-tetrahydro[1,3]thiazolo[5,4-c]pyridin-2-yl)-3,4-dihydro-2h-1,4-benzoxazin-6-yl]oxy}pyridine-2-carboxamide

Temperatur

145 °C

To a solution of Example 57 (75 mg, 0.227 mmol) in THF (4 mL) was added 2-fluoro-6-pyridinecarboxamide (64 mg, 0.453 mmol) and sodium tert-butoxide (87 mg, 0.906 mmol). The reaction was heated to 145° C. under microwave irradiation for 50 minutes then cooled to r.t. The mixture was partitioned between DCM (50 mL) and water (50 mL); the organic phase was washed with brine (50 mL), dried (MgSO4), and concentrated in vacuo. The residue was purified by preparative HPLC (Method 6) to give the title compound (12 mg, 12%) as a white solid. δH (CDCl3) 8.02 (1H, d, J 2.6 Hz), 7.91 (1H, dd, J 7.2 and 0.9 Hz), 7.85 (1H, t, J 7.9 Hz), 7.08 (1H, dd, J 7.9 and 0.9 Hz), 6.98 (1H, d, J 8.9 Hz), 6.85 (1H, dd, J 8.9 and 2.6 Hz), 4.27-4.43 (2H, m), 4.05-4.17 (2H, m), 2.83 (2H, s), 1.37 (6H, s). LCMS (ES+) 452.0 (M+H)+, RT 2.85 minutes (Method 1).

1. temperaturethen cooled to r.t
2. customThe mixture was partitioned between DCM (50 mL) and water (50 mL)
3. washthe organic phase was washed with brine (50 mL)
4. dry with materialdried (MgSO4)
5. concentrationconcentrated in vacuo
6. customThe residue was purified by preparative HPLC (Method 6)

ORD-Eintrag

ord-f85adebf94414c5b91507717e391bacd

Quelldatensatz

uspto-grants-2012_08

DOI

10.6084/m9.figshare.5104873.v1

Patentnummer

US08242116B2