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1 Laboratory Of Chemical Pharmacology, National Heart Institute, National Institutes Of Health, Bethesda, Maryland
A main reaction of nicotine metabolism in rabbit appears to be hydroxylation in the alpha position of the pyrrolidine ring to form a hydroxynicotine. This oxidation occurs in liver microsomes and requires TPNH and O2; the product has the properties of a cyclized amino aldehyde. The hydroxynicotine then undergoes oxidation to cotinine, a reaction that may be catalyzed by an aldehyde oxidase.
Submitted on October 19, 1959
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