Hydrochloric Acid → HCID 21108374, compound

Participants

Reaction Steps

A solution of 4-[4-(4-chlorophenyl)-1-piperidinyl]-1-(3-isopropyl-2,3,4,5-tetrahydro-1H-3-benzazepin-7-yl)-4-oxo-1-butanol (0.14 g, 0.30 mmol) obtained in Example 212 and p-toluenesulfonic acid monohydrate (0.03 g, 0.16 mmol) in toluene (10 mL) was refluxed for 24 hours under heating. The reaction solution was concentrated under reduced pressure, and the resultant residues were purified by alumina column chromatography (developing solvent; hexane:ethyl acetate=1:1), whereby 0.09 g free base of the title compound was obtained as colorless amorphous powder. The resultant powder was dissolved in ethyl acetate and treated with 4 N hydrochloric acid in ethyl acetate under cooling with ice-bath, whereby 0.04 g of the title compound was obtained as colorless amorphous powder.

Provenance & Evidence