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Deoxyribosyl exchange reactions leading to the in vivo generation and regeneration of the antiviral agents (E)-5-(2-bromovinyl)-2'-deoxyuridine, 5-ethyl-2'-deoxyuridine and 5-(2-chloroethyl)-2'-deoxyuridine.

Abstract：

:In the rat, the highly potent anti-herpes drug (E)-5-(2-bromovinyl)-2'-deoxyuridine (BVdUrd) is rapidly converted to its base (E)-5-(2-bromovinyl)uracil (BVUra) through the action of pyrimidine nucleoside phosphorylases. However, BVdUrd can be regenerated or even generated de novo from BVUra by a pentosyl transfer reaction upon the administration of 2'-deoxythymidine (dThd), 2'-deoxyuridine (dUrd) or 5-ethyl-2'-deoxyuridine (EtdUrd). The antiherpetic drugs EtdUrd and 5-(2-chloroethyl)-2'-deoxyuridine (ClEtdUrd) can also be regenerated or generated de novo from their respective bases 5-ethyluracil (EtUra) and 5-(2-chloroethyl)uracil (ClEtUra), by a pentosyl transfer mediated by the administration of dThd or dUrd as deoxyribosyl donor. The generation or regeneration of BVdUrd, EtdUrd and ClEtdUrd from their bases (BVUra, EtUra and ClEtUra, respectively) is readily achieved because the latter have long half-lifes. Thus, the active anti-herpes drugs can be (re)generated repeatedly after a single administration of these nucleosides or their bases, followed by repeated administrations of dUrd.

journal_name

Biochem Pharmacol

journal_title

Biochemical pharmacology

authors

Desgranges C,De Clercq E,Razaka G,Drouillet F,Belloc I,Bricaud H

doi

10.1016/0006-2952(86)90318-7

subject

Has Abstract

pub_date

1986-05-15 00:00:00

pages

1647-53

issue

10

eissn

0006-2952

issn

1873-2968

pii

0006-2952(86)90318-7

journal_volume

35

pub_type

杂志文章

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