title: Photoproducts from DNA pyrimidine bases and polycyclic aromatic hydrocarbons.
abstract: The major photoproduct formed between benzo[a]pyrene and thymine is identified as 1-(benzo[a]pyren-6-yl)-thymine by means of spectroscopic analysis and isotopic syntheses. Irradiation of 1-methylcytosine hydrochloride and anthracene gives two isolable photoproducts of which one is assigned the structure 5-(anthracen-9-yl)-1-methylcytosine.
mesh_terms: D000873:Anthracenes; D001580:Benzopyrenes; D003596:Cytosine / Q000031:analogs & derivatives*; D004247:DNA; D008401:Gas Chromatography-Mass Spectrometry; D013058:Mass Spectrometry; D008968:Molecular Conformation; D010777:Photochemistry; D013941:Thymine; D014316:Tritium
chemical_list: D000873:Anthracenes; D001580:Benzopyrenes; D014316:Tritium; D003596:Cytosine; D004247:DNA; D013941:Thymine