Human Cytochrome P450 1A2 Involvement in the Formation of Reactive Metabolites from a Species-Specific Hepatotoxic Pyrazolopyrimidine Derivative, 5-n-Butyl-7-(3,4,5-trimethoxybenzoylamino)pyrazolo[1,5-a]pyrimidine

5-n-Butyl-7-(3,4,5-trimethoxybenzoylamino)pyrazolo[1,5-a]pyrimidine) (OT-7100) is a pyrazolopyrimidine derivative with potential analgesic effects. Exclusively limited elevations in serum levels of aspirate- and alanine-aminotransferase were abnormally observed in a clinical study, in contrast to no...

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