1,1-Dimethylethyl 4-[4-(4-fluorophenyl)-2-oxo-3-(4-pyridinyl)-3-butenyl]-1-piperidinecarboxylate → 1,1-Dimethylethyl 4-(2-[3-(4-fluorophenyl)-2-(4-pyridinyl)oxiranyl]-2-oxoethyl]-1-piperidinecarboxylate

Participants

Reaction Steps

1,1-Dimethylethyl 4-(2-[3-(4-fluorophenyl)-2-(4-pyridinyl)oxiranyl]-2-oxoethyl]-1-piperidinecarboxylate was prepared by the same method as described for step 3 of Example A-2 by replacing 4-phenyl-3-(4-pyridyl)-3-butene-2-one with the α,β unsaturated ketone of step 3 of the present Example.

Provenance & Evidence