1,4'-Bipiperidine → 3-[1,4']Bipiperidinyl-1'-ylmethyl-2-phenyl-quinoline-4-carboxylic Acid Methyl Ester

Participants

Reaction Conditions

Reaction Steps

5 g (14 mmol) of 3-bromomethyl-2-phenyl-quinoline-4-carboxylic acid methyl ester (compound of Description 2), 2.9 g, (15.4 mmol) of 90% [1,4′]Bipiperidinyl (Aldrich), 2.7 ml (15.4 mmol) of ethyl-diisopropyl-amine were dissolved in 100 ml of dry THF and the mixture was stirred for one night at 50° C. The solvent was concentrated, the residue was dissolved in CH2Cl2, washed with water, and the organic phase was dried over MgSO4. After concentration of the solvent, the residue was purified by flash chromatography over 160 g of silicagel (eluting with CH2Cl2/MeOH/NH4OH:95/5/0.5) affording 3.5 g (yield 56%) of the title compound as a white solid.

Provenance & Evidence