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- W2090046120 abstract "A study on the relationship between mutagenic activity and chemical reactivity of a series of 2-fluorenylamino and hydroxylamino derivatives has been carried out by assaying their ability to revert the Salmonella typhimurium strain TA98. The mutagenic potency of the fluorenamides increased with increasing availability of the amidic hydrogen for abstraction and tertiary amides were quite inactive. N-Hydroxy and N-acyloxy derivatives were directly mutagenic and increased their mutagenic activity after metabolic conversion by liver S9. N-Hydroxy-2-benzoylaminofluorene, inactive without S9, after activation was the most mutagenic. Of a pair of N-acyloxy-derivatives, N-benzoyloxy-2-acetylaminofluorene, which undergoes rearrangement of the benzoyloxy group from nitrogen to ring carbons even at room temperature, was less potent than N-acetyloxy-2-acetylamino-fluorene whose rearrangement occurs at higher temperatures. Corresponding C-1 and C-3 benzoyloxy and acetyloxy derivatives were found ineffective in this assay in agreement with previous reports on the hydroxy series. N-Chloro-2-amino-(or acetylamino)fluorene were found more active than the corresponding N-hydroxy analogs in the presence of S9, thus suggesting an alternate pathway for activation, likely a direct conversion to electrophilic species. Furthermore, in contrast with inactivity of ring hydroxy and acyloxy derivatives, 3-chloro-2-acetylaminofluorene retained mutagenic activity. Finally 2,2'-azoxyfluorene, the ultimated oxidation product of N-hydroxyaminofluorene, tested in vitro and in vivo experiments, was found completely inactive." @default.
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- W2090046120 date "1985-01-01" @default.
- W2090046120 modified "2023-09-29" @default.
- W2090046120 title "Chemistry and in vitro mutagenicity of 2-aminofluorene derivatives" @default.
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- W2090046120 doi "https://doi.org/10.1016/s0009-2797(85)80153-8" @default.
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