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Metabolism of m-tert.-butylphenyl N-methylcarbamate in insects and mice.

ABSTRACT: The metabolism of m-tert.-butylphenyl N-methylcarbamate was studied in mice and five species of insects. Both the tert.-butyl group and the N-methyl group were hydroxylated. The major phenolic metabolite was m-(beta-hydroxy-tert.-butyl)phenol, which was identified by mass spectroscopy. Significant amounts of dihydroxy compounds were formed at a constant rate from the start of the enzymic oxidation process. The considerable species variation in the yields of the different types of oxidation products suggests that N-demethylation and oxidation of the tert.-butyl groups were catalysed by different enzymes. A microsomal NADPH-dependent enzyme also catalysed the splitting of the ester link in the insecticide.

SUBMITTER: Douch PG

PROVIDER: S-EPMC1178071 | biostudies-other | 1971 Nov

REPOSITORIES: biostudies-other

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Metabolism of m-tert.-butylphenyl N-methylcarbamate in insects and mice.

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