37819-60-6Relevant articles and documents
Synthesis of the Ultimate Hepatocarcinogen, 2-Acetylaminofluorene N-Sulphate
Beland, Frederick A.,Miller, Dwight W.,Mitchum, Ronald K.
, p. 30 - 31 (1983)
Reaction of N-hydroxy-2-acetylaminofluorene with dicyclohexylcarbodi-imide and H2SO4 yields 2-acetylaminofluorenone N-sulphate, the presumed ultimate form of the hepatocarcinogen 2-acetylaminofluorene.
Synthesis of site-specific damaged DNA strands by 8-(acetylarylamino)- 2′-deoxyguanosine adducts and effects on various DNA polymerases
Krueger, Sarah,Meier, Chris
, p. 1158 - 1169 (2013/04/10)
Beside the predominately found 8-(arylamino)-2′-dG, 8-(acetylarylamino) damages within DNA-strands may also play an important role in the induction of chemical carcinogenesis. A synthesis pathway leading to these 8-(acetylarylamino)-dG adducts using different aromatic amines has been optimized. The 8-modified dGs were converted into the corresponding phosphoramidites and site-specifically incorporated into different oligonucleotides leading to DNA strands. Lesion-bearing hybrids of these damaged DNA-strands with complementary oligonucleotides were used to study their melting properties and their circular dichroism spectra. It was shown that no EcoRI restriction took place with the damage inside the cleavage site. Finally, three different DNA polymerases were used for primer extension studies. C8-NAc-Arylamine adducts of 2′-deoxyguanosine with various aromatic amines were synthesized by using cross-coupling reactions and converted into 3′-phosphoramidites. Site-specific damaged NarI-, EcoRI- and 20mer-oligonucleotides were prepared by automated DNA-synthesis. Biophysical properties, restriction endonuclease studies and DNA-polymerase assays were performed. Copyright
Preparation of C8-amine and acetylamine adducts of 2′-deoxyguanosine suitably protected for DNA synthesis
Gillet, Ludovic C. J.,Schaerer, Orlando D.
, p. 4205 - 4208 (2007/10/03)
(Equation presented) C8-Amine and acetylamine adducts of 2′-deoxyguanosine were synthesized. Our approach provides solutions for the coupling of aromatic amines to a protected 8-bromo-2′-deoxyguanosine derivative, for the selective acetylation of the coup
Reactivity of the 4-biphenylyl and 2-fluorenylnitrenium ions with heterocyclic and carbon nucleophiles
McClelland, Robert A.,Kahley, Mary Jo,Adriaan Davidse
, p. 355 - 360 (2007/10/03)
The carcinogens 4-aminobiphenyl, 2-aminofluorene and their N-acetyl derivatives form DNA adducts in vivo with the aryl nitrogen attached at C-8 of guanine. These adducts are proposed to arise through the reaction with the DNA base of a nitrenium ion obtai
Interaction and Reactivity of Carcinogenic N-Acetyl-N-(acyloxy)-2-aminofluorene with Deoxyguanosine. An Intramolecular Approach
Defrancq, Eric,Pelloux, Nadia,Leterme, Anne,Lhomme, Marie-France,Lhomme, Jean
, p. 4817 - 4819 (2007/10/02)
Solvolysis of 3 in water-acetone mixtures yields the "adduct" 4 (65percent in water) with product and rate data consistent with the hypothesis that hydrophobic guanine-fluorene stacking, similar to that which occurs when the carcinogenic animofluorene metabolite is intercalated in DNA, is responsible for selective binding of the carcinogen at the C-8 guanine center.
Substituent effects on the bioactivation of 2-(N-hydroxyacetamido)fluorenes by N-arylhydroxamic acid N,O-cyltransferase
Elfarra,Hanna
, p. 1453 - 1460 (2007/10/02)
A series of 7-substituted analogues of 2-(N-hydroxyacetamido)fluorene (1) was subjected to bioactivation by a partially purified preparation of hamster hepatic AHAT, and the rates of methylthio adduct formation resulting from the reaction of the activated intermediates with N-acetylmethionine were determined. Electronegative substituents enhanced the amount of adduct formed; this finding contrasted with the results of a previous study in which it was found that electron-donating substituents facilitated the mechanism-based inactivation of AHAT by analogues of 1. The structures of the adducts formed from reaction of the activated forms of several of the 7-substituted compounds with N-acetylmethionine and with 2'-deoxyguanosine were determined; the types of adducts formed were similar to those formed with electrophiles generated by the AHAT-catalyzed activation of 1. Electronegative substituents enhanced the amount of adducts formed in the reaction with 2'-deoxyguanosine as well as with N-acetylmethionine.