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RECORD NUMBER: 7 OF 7

OLS Field Name OLS Field Data
Main Title Synthesis and Biological Activity of Nitro-Substituted Cyclopenta-Fused PAH.
Author Goldring, J. M. ; Ball, L. M. ; Sangaiah, R. ; Gold, A. ;
CORP Author North Carolina Univ. at Chapel Hill.;Health Effects Research Lab., Research Triangle Park, NC.
Year Published 1986
Report Number EPA-R-811817; EPA/600/D-86/182;
Stock Number PB86-240975
Additional Subjects Synthesis(Chemistry) ; Aromatic polycyclic hydrocarbons ; Bioassay ; Salmonella typhimurium ; Chemical analysis ; Combustion products ; Nitrogen organic compounds ; Mutagens ; Activity(Biology) ; Benz(a)aceanthrylene ; Cyclopenta(ca)pyrene
Holdings
Library Call Number Additional Info Location Last
Modified
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Status
NTIS  PB86-240975 Most EPA libraries have a fiche copy filed under the call number shown. Check with individual libraries about paper copy. 06/21/1988
Collation 19p
Abstract
PAH containing a peripherally fused cyclopenta ring are genotoxically active in Salmonella and mammalian cells and have been identified in combustion emissions. Since the cyclopenta ring is predicted to be susceptible to electrophilic attack, nitrosubstituted cyclopenta-fused PAH may be formed in the presence of NO(x), particularly in diesel exhaust, and hence be present in the environment. Nitro derivatives of cyclopenta (cd) pyrene and the cyclopenta-fused benzanthracene isomers were prepared by reaction of the PAH with dinitrogen tetroxide. The purifed products were characterized by mass spectroscopy, (1)H NMR, UV-vis and HPLC. In all cases, nitro substitution occurred on the cyclopenta ring in accord with expectation. Preliminary assay in S. typhimurium indicates that 4-nitro-cyclopenta(cd)pyrene is mutagenically active without exogenous metabolic activation in nitroreductase-competent strains. The results of the study have allowed us to test the hypothesis and will aid in development of structure-activity relationships of nitroPAH.