Potassium Carbonate → 1-[4-(3,3-Dimethyl-butyl)-piperazin-1-yl]-2-[4-(3-methyl-4,10-dihydro-3H-2,3,4,9-tetraaza-benzo[f]azulene-9-carbonyl)-phenoxy]-ethanone

Participants

Reaction Steps

Potassium carbonate (104 mg, 0.76 mmol) was added to a mixture of 2-bromo-1-[4-(3,3-dimethyl-butyl)-piperazin-1-yl]-ethanone from Example E37 (110 mg, 0.38 mmol) and (4-hydroxy-phenyl)-(3-methyl-4,10-dihydro-3H-2,3,4,9-tetraaza-benzo[f]azulen-9-yl)-methanone from Example E75.2 (90 mg, 0.28 mmol) in acetonitrile (5 ml). The mixture was heated at reflux for 20 h then concentrated in vacuo. The residue was dissolved in dichloromethane, washed with 5% KHCO3 solution, dried and concentrated in vacuo. The residue was purified by preparative HPLC (eluant; 0.5% 35% ammonia:9.5% methanol:90% dichloro-methane) to give a white powder identified as the title compound (21 mg, 11%).

Provenance & Evidence