Sodium Carbonate → cis-2,6-Dimethyl-4-{5-(2-methyl-4-pyridinyl)-4-[2-(trifluoromethyl)-3-pyridinyl]-2-pyrimidinyl}morpholine hydrochloride

Participants

Reaction Conditions

Reaction Steps

Sodium carbonate (166 mg, 1.568 mmol) in water (2 ml), bis(triphenylphosphine) palladium(II)chloride (11.01 mg, 0.016 mmol) and [2-(trifluoromethyl)-3-pyridinyl]boronic acid (90 mg, 0.471 mmol) were added to a solution of cis-4-[4-chloro-5-(2-methyl-4-pyridinyl)-2-pyrimidinyl]-2,6-dimethylmorpholine (100 mg, 0.314 mmol) in 1,2-dimethoxyethane (DME) (3 ml). The reaction mixture was heated to 80° C. for 1 hour. After cooling to room temperature the reaction mixture was partitioned between ethyl acetate (20 mls) and water (20 mls). The organic layer was passed through a hydrophobic frit to remove traces of water and then evaporated to dryness to give a yellow gum. The residue was subject to MDAP purification in 1 ml of 50:50 DMSO:MeOH. Clean fractions were combined and evaporated to dryness to give a yellow gum. The free base was generated by partitioning between sodium bicarbonate and dichloromethane. The organic layer was dried by passing through a hydrophobic frit and then the HCl salt was generated by addition of 1M HCl in diethylether (97 ul). The solvent was evaporated and the residue was co-evaporated with ether. The residue was triturated with ether and the resulting solid was collected and dried at 40° C. under vacuum for 1 hour to give the title compound as a yellow solid (30 mg, 19.5%). LC/MS [M+H]+=430. 1H NMR (400 MHz, d6-DMSO): δ 8.64 (1H, s), 8.60 (1H, d), 8.53 (1H, d), 8.32 (1H, t), 7.97 (1H, d), 7.67 (1H, m), 7.53-7.44 (1H, m), 4.70 (2H, d), 3.68-3.55 (2H, m), 2.75-2.65 (2H, m), 2.58 (3H, s), 1.19 (6H, d).

Provenance & Evidence