Triethylamine → HCID 57555403, compound

Participants

Reaction Steps

(1-Benzyl-2-methyl-4,5-dihydro-1H-1,3,6-triaza-benzo[e]azulen-6-yl)-[3-fluoro-4-(3-piperazin-1-yl-propoxy)-phenyl]-methanone dihydrochloride from Example E69.2 (105 mg, 0.17 mmol) was dissolved in methanol (2.45 ml) and triethylamine (0.07 ml, 0.50 mmol). Acetic acid (0.05 ml) then 3,3-dimethylbutyraldehyde (0.032 ml, 0.25 mmol) were added and the mixture was stirred for 1 h at room temperature. Sodium cyanoborohydride (16 mg, 0.25 mmol) was added and the mixture was stirred for 3 h at room temperature then concentrated in vacuo. The residue was dissolved in dichloromethane, washed with saturated NaHCO3 then brine, dried and concentrated in vacuo. The residue was purified by flash chromatography on silica gel (eluant; 5% methanol:95% dichloromethane) to yield the title compound (102 mg, 95%).

Provenance & Evidence