Metabolism of a novel anxiolytic GML-1 (N-benzyl-N-methyl-1-phenylpyrrolo[1,2-a]pirazin-3-carboxamide) in rat blood plasma was studied by HPLC-mass spectrometry. Three biotransformation products with the corresponding molecular ions were detected. A conclusion was made that the main pathways of GML-1 metabolism are oxidative reactions yielding hydroxylated, methylated, and demethylated metabolites.
Keywords: GML-1; HPLC-mass spectrometry; anxiolytic; metabolism.