3-Pyridinebutanoic acid → 4-[2,2-Bis[4-fluorophenyl)ethenyl]1-[1-oxo-4-(3-pyridinyl)butyl]piperidine

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Reaction Steps

The title compound was prepared in a manner similar to that employed for the compound of example 10 starting with 9.0 g of 4-[2,2-bis(4-fluorophenyl)ethenyl]piperidine, 0.15 molar hexane solvate and the acid chloride prepared from 6.6 g of 3-pyridine butanoic acid. The toluene extracts were evaporated and the residue was crystallized from ether to give 8.7 g (65%) of pure 4-[2,2-bis[4-fluorophenyl)ethenyl]1-[1-oxo-4-(3-pyridinyl)butyl]piperidine, mp 100°-102° C. Analysis Calculated for C28H28F2N2O: C, 75.31; H, 6.32; N, 6.27; F, 8.51. Found: C, 75.36; H, 6.30; N, 6.24; F, 8.30.

Provenance & Evidence