Abstract
When a mixture of vinyl chloride/oxygen or vinyl bromide/air was passed through a mouse-liver microsomal system, volatile alkylating metabolites were trapped by reaction with excess 4-(4-nitrobenzyl)pyridine. The absorption spectra of the adducts, either from vinyl bromide or vinyl chloride, were identical with that obtained by reaction of chloroethylene oxide with 4-(4-nitrobenzyl) pyridine. Chloroethylene oxide decomposes in aqueous solution with a half-life of 1.6 minutes. After reaction of chloroethylene oxide and 2-chloroacetaldehyde with adenosine and Sephadex chromatography the binding products were compared with those formed in the presence of vinyl chloride, mouse-liver microsomes and adenosine. A common product of these reactions was tentatively characterized as 3-β-ribofuranosyl-imidazo-[2,1- i]purine.
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