Document 0744 DOCN M9480744 TI Intermediates in the oxidation of a dihydropyridine derivative of AZT related to AIDS dementia, studied by nanosecond laser photolysis. DT 9410 AU Lindqvist L; Czochralska B; Kawczynski W; Laboratoire de Photophysique Moleculaire, Universite de; Paris-Sud, Orsay, France. SO J Photochem Photobiol B. 1994 May;23(2-3):207-11. Unique Identifier : AIDSLINE MED/94315484 AB Radicals of the AZT derivative 5'-(1,4-dihydro-1-methyl-3-pyridinylcarbonyl)-3'-azido-2',3'-dide- o xythymidine) were obtained on exposure of this compound in alkaline aqueous solution to pulsed laser emission of lambda = 355 nm and pulsewidth 2 ns FWHM. The radical formation was shown to be due to photoelectron ejection from the pyridine group following two-step excitation of the compound. The radicals were found to deprotonate rapidly. Electrochemical analysis showed that the photoionization does not affect the azido group. DE AIDS Dementia Complex/*DRUG THERAPY Dihydropyridines/*CHEMISTRY/METABOLISM/THERAPEUTIC USE Human Lasers Photolysis Support, Non-U.S. Gov't Time Factors Zidovudine/*ANALOGS & DERIVATIVES/CHEMISTRY/METABOLISM/ THERAPEUTIC USE JOURNAL ARTICLE SOURCE: National Library of Medicine. NOTICE: This material may be protected by Copyright Law (Title 17, U.S.Code).