Phosphorylation of Ganciclovir Phosphonate by Cellular GMP Kinase Determines the Stereoselectivity of Anti-Human Cytomegalovirus Activity
摘要:
A racemic mixture of ganciclovir phosphonate was resolved by stereoselective phosphorylation using GMP kinase. The R-enantiomer of ganciclovir phosphonate was active against human cytomegalovirus but the S-enantiomer was less active. We show that enantiomeric selectivity of antiviral activity for ganciclovir phosphonate was conferred by stereoselective phosphorylations by mammalian enzymes, not by stereoslective inhibition of DNA polymerase from human cytomegalovirus.
Phosphorylation of Ganciclovir Phosphonate by Cellular GMP Kinase Determines the Stereoselectivity of Anti-Human Cytomegalovirus Activity
摘要:
A racemic mixture of ganciclovir phosphonate was resolved by stereoselective phosphorylation using GMP kinase. The R-enantiomer of ganciclovir phosphonate was active against human cytomegalovirus but the S-enantiomer was less active. We show that enantiomeric selectivity of antiviral activity for ganciclovir phosphonate was conferred by stereoselective phosphorylations by mammalian enzymes, not by stereoslective inhibition of DNA polymerase from human cytomegalovirus.
[EN] ACYCLIC PURINE PHOSPHONATE NUCLEOTIDE ANALOGS AS ANTIVIRAL AGENTS, AND RELATED SYNTHETIC METHODS<br/>[FR] ANALOGUES DE NUCLEOTIDES PHOSPHONATES DE PURINE ACYCLIQUE UTILES COMME AGENTS ANTIVIRAUX ET PROCEDES SYNTHETIQUES CONNEXES
申请人:SRI INTERNATIONAL
公开号:WO1994003466A1
公开(公告)日:1994-02-17
(EN) Acyclic purine phosphonate nucleotide analogs useful to treat herpes viral infections are provided in enantiomerically pure form. These antiviral agents have structural formula (Ia) or (Ib), and may be in acid, salt or ester form. Such compounds may also be dehydrated to provide antiviral agents in cyclic form. Pharmaceutical compositions are provided containing the antiviral agents, as is a chiral synthesis which may be used to prepare the agents in enantiomerically pure form or as a racemic mixture.(FR) Des analogues de nucléotides phosphonatés de purine acyclique utilisés dans le traitement des infections virales de l'herpès sont obtenus sous une forme énantiomériquement pure. Ces agents antiviraux ont la formule structurelle (Ia) ou (Ib) et peuvent être sous forme d'acides, de sels ou d'esters. Ces composés peuvent également être déshydratés afin d'obtenir des agents antiviraux sous forme cyclique. On produit également des compositions pharmaceutiques contenant les agents antiviraux comme dans une synthèse chirale qui peut être utilisée pour préparer les agents sous forme énantiomériquement pure ou comme mélange racémique.
[EN] THERAPEUTIC NUCLEOSIDES
申请人:THE WELLCOME FOUNDATION LIMITED
公开号:WO1993006112A1
公开(公告)日:1993-04-01
(EN) The present invention relates to an antiviral phosphonate derivate of an acyclic purine nucleoside analog, to pharmaceutically acceptable derivatives thereof and to their use in medical therapy, particularly in the treatment of cytomegalovirus infections. Methods for preparing the R-enantiomer of the compound of the invention, substantially free from the corresponding S-enantiomer are disclosed.(FR) La présente invention se rapporte à un dérivé de phosphonate antiviral d'un analogue de nucléoside de purine acyclique, à des dérivés pharmaceutiquement acceptables, ainsi qu'à leur utilisation en thérapie médicale, en particulier pour le traitement d'infections par cytomégalovirus. Des procédés de préparation de l'énantiomère-R du composé de l'invention, lequel est pratiquement dépourvu de l'énantiomère-S correspondant, sont également décrits.
Phosphorylation of Ganciclovir Phosphonate by Cellular GMP Kinase Determines the Stereoselectivity of Anti-Human Cytomegalovirus Activity
作者:Wayne H. Miller、Lilia M. Beauchamp、Eric Meade、John E. Reardon、Karen K. Biron、Albert A. Smith、Charles A. Goss、Richard L. Miller
DOI:10.1080/15257770008033013
日期:2000.1
A racemic mixture of ganciclovir phosphonate was resolved by stereoselective phosphorylation using GMP kinase. The R-enantiomer of ganciclovir phosphonate was active against human cytomegalovirus but the S-enantiomer was less active. We show that enantiomeric selectivity of antiviral activity for ganciclovir phosphonate was conferred by stereoselective phosphorylations by mammalian enzymes, not by stereoslective inhibition of DNA polymerase from human cytomegalovirus.