## Abstract The pharmacokinetics of a series of novel cyclic, nonβpeptide inhibitors of HIV protease were studied in rats or dogs after intravenous and oral administration. Six symmetrically substituted cyclic urea compounds (XK234, XM311, XM320, XM321, XM323, and XM412), which effectively inhibite
Cyclic Ureas, III: On the Metabolism of the Enantiomers of Cyclic Ureas in Rats
β Scribed by Hans H. Maurer; Joachim Biwersi; Joachim Knabe
- Publisher
- John Wiley and Sons
- Year
- 1993
- Tongue
- English
- Weight
- 271 KB
- Volume
- 326
- Category
- Article
- ISSN
- 0365-6233
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β¦ Synopsis
Abstract
Studies are described on the metabolism of the enantiomers of 1, 2, and 3 in rats. The metabolites were identified in urine after cleavage of conjugates and extraction using gas chromatographyβmass spectrometry. Qualitative enantioselective differences of the metabolism of 1, 2, and 3 could not be detected. Because oxidation of 1 and 2 to the corresponding barbiturates could not be found and 3 was oxidized to mephenytoin only in minor amounts, this pathway is not a prerequisite for the sedativeβhypnotic effects of 1, 2, and 3.
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