Ethanol → HCID 86669226, compound

Participants

Reaction Conditions

Reaction Steps

((cis)-1-acetyl-6-bromo-2-ethyl-1,2,3,4-tetrahydro-4-quinolinyl)formamide (for a preparation see Intermediate 44) (1 g, 3.08 mmol) and [4-(1-piperidinylmethyl)phenyl]boronic acid (1.572 g, 6.15 mmol, Intermediate 1) were mixed with Ethanol (8 mL), Toluene (8.00 mL). potassium carbonate (1.402 g, 10.15 mmol) and tetrakis(triphenylphosphine)palladium(0) (0.355 g, 0.308 mmol) were added and the mixture was stirred under nitrogen, at reflux at 110° C. After 3 hours, another sample of tetrakis(triphenylphosphine)palladium(0) (0.355 g, 0.308 mmol) was added and the reaction was left to stir overnight. The reaction was evaporated to dryness. The residue was diluted with DCM (150 mL), washed (water (150 mL), sat. sodium bicarbonate (200 mL), brine (200 mL)), dried (sodium sulfate), filtered and evaporated to dryness to give a black solid which was loaded onto an 20 g SCX-column, eluting with MeOH (120 mL) followed by MeOH/NH3 (300 mL). Product-containing fractions were evaporated to dryness to give a dark red solid which was purified on a 40+S Biotage silica column, eluting with DCM:2M MeOH/NH3 (1:0 to 19:1). Product-containing fractions were evaporated to dryness to give a yellow/orange solid (1.00 g).

Provenance & Evidence