Pharmacokinetics of the in vivo and in vitro conversion of 9-nitro-20(S)-camptothecin to 9-amino-20(S)-camptothecin in humans, dogs, and mice

We have determined that 9-nitro-20(S)-camptothecin (9NC) converts to 9-amino-20(S)-camptothecin (9AC) in humans, dogs, and mice. Following a single oral dose of 0.1 mg/kg of 9NC, the human plasma concentration reached a maximum concentration of 483 ng/ml at 3.4 h with an area under the curve (AUC) o...

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