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- W2079535909 abstract "The synthesis and mutagenicity of two derivatives of 7,12-dimethylbenz[a]anthracene (DMBA; 1), i.e., 1,2-H2DMBA (4) and 1,2,3,4-H4DMBA (5), are reported. These analogues (4 and 5) represent dihydro and tetrahydro A-ring reduced forms of DMBA, a region in the parent hydrocarbon (1) proposed to be involved in metabolism to the ultimate carcinogen. The synthesis for 4 without isolation of intermediates from the tosylhydrazone of 1,2,3,4-tetrahydrobenz[a]anthracene-4,7,12-trione (10) by successive reaction with 8 molar equiv of CH3Li, HI, and NaBH4 represents a novel approach to this hydrocarbon now available in sufficient quantity for biological studies. Interestingly, both of these reduced analogues 4 and 5 exhibited mutagenic activity in the Ames assay in the presence or absence of microsomal activation for strains TA98 and TA100. In these strains, DMBA was active only in the presence of S-9 fraction. In the plasmid-deficient strain TA1537, only tetrahydro analogue 5 exhibited mutagenic activity both in the absence and presence of S-9 fraction." @default.
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- W2079535909 date "1980-03-01" @default.
- W2079535909 modified "2023-09-25" @default.
- W2079535909 title "Synthesis and mutagenicity of A-ring reduced analogs of 7,12-dimethylbenz[a]anthracene" @default.
- W2079535909 doi "https://doi.org/10.1021/jm00177a013" @default.
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