Sodium Carbonate → (2-Chloro-5-(4-(4-morpholinyl)-6-quinolinyl)-3-pyridinyl)methanol

Participants

Reaction Conditions

Reaction Steps

(Some starting materials may be obtained from Adesis Inc., New Castle, Del.) A mixture of 4-morpholinoquinolin-6-ylboronic acid (500 mg, 1937 μmol), PdCl2(dppf) (70.9 mg, 96.9 μmol), Na2CO3 (616 mg, 5812 μmol) and (5-bromo-2-chloropyridin-3-yl)methanol (431 mg, 1937 μmol) in DME (8 mL) and water (3 mL) was heated to 95° C. under nitrogen. After 2 h, the mixture was concentrated and the residue was partitioned between water and DCM containing iPrOH (1%). The aqueous layer was extracted several times with DCM containing iPrOH (1%). The combined organic phase was concentrated and suspended in DMSO-MeOH (1:1). This mixture was then filtered, washed with MeOH to give the desired product (230 mg, 94% pure based on LCMS). The filtrate was purified with HPLC and concentrated to an oil. This was partitioned between DCM and saturated NaHCO3. The organic phase was dried over Na2SO4 and concentrated to a white solid (100 mg). LCMS (ESI, pos. ion): calc'd for C19H18ClN3O2: 355.1; found: 356.1 (M+1). 1H NMR (400 MHz, CHLOROFORM-d) δ ppm 2.19-2.39 (m, 1 H) 3.21-3.33 (m, 4 H) 3.95-4.06 (m, 4 H) 4.91 (d, J=5.02 Hz, 2 H) 6.93 (d, J=4.52 Hz, 1 H) 7.88 (d, J=9.03 Hz, 1 H) 8.13-8.27 (m, 3 H) 8.63 (d, J=2.01 Hz, 1 H) 8.79 (d, J=5.02 Hz, 1 H)

Provenance & Evidence