Hydrochloric Acid → HCID 67211673, compound

Participants

Reaction Steps

(E)-[2-(2-Propylbenzimidazol-1-yl)methyl-10,11-dihydro-5H-dibenzo[a,d]cyclohepten-5-ylidene]acetonitrile (260 mg, 0.64 mmol) obtained in Example 1 was dissolved in ethanol (2.5 mL), 10 mol/L aqueous sodium hydroxide solution (1 mL) was added, and the mixture was stirred under reflux for 24 hr. The mixture was neutralized with hydrochloric acid, and extracted with ethyl acetate. The organic layer was washed with brine, dried over anhydrous magnesium sulfate, and concentrated under reduced pressure. The residue was purified by silica gel column chromatography (chloroform/methanol=90/10) to give the title compound (compound 2) (243 mg, 89%).

Provenance & Evidence