3-Hydroxy-6-methyl-2-[4-(3-trifluoro-methylphenyl)piperazin-1-ylmethyl]-4H-pyran-4-one

Abstract

In the structure of the title compound, 3-hydroxy-6-methyl-2-[4-(3-trifluoromethylphenyl)piperazin-1-ylmethyl]-4H-pyran- 4-one, C18H19F3N2O3, the piperazine ring displays an almost perfect chair conformation, with the substituents at the N atoms lying in equatorial positions. The conformation of the molecule is determined by intra- and intermolecular hydrogen bonds.