Substituted 1,3-oxathiolanes and substituted 1,3-dithiolanes with
申请人:BioChem Pharma, Inc.
公开号:US05587480A1
公开(公告)日:1996-12-24
This invention relates to novel substituted 1,3-oxathiolanes and substituted 1,3-dithiolanes or pharmaceutically acceptable salts and esters thereof, of the formula: ##STR1## wherein X is S, S.dbd.O, or SO.sub.2 ; Y is O, S, S.dbd.O, or SO.sub.2 ; R.sub.1 is hydrogen, trisubstituted silyl, C.sub.1-6 alkyl, aralkyl, or C.sub.1-6 acyl, and R.sub.2 is a pyrimidine base or an analogue or derivative thereof. This invention also relates to processes for preparing these compounds, intermediates useful in their preparation, to pharmaceutical compositions containing them and to the use of these compounds as antiviral agents.
Synthesis of optically active 2′,3′-dideoxy-3′-oxa-4′-thio-ribonucleoside analogues by transposition of a leaving group on chiral oxathiolanes via a reductive-oxidative process
作者:Wei Wang、Haolun Jin、Tarek S. Mansour
DOI:10.1016/s0040-4039(00)76955-3
日期:1994.7
The synthesis of chiral nucleoside analogues with a unique structural feature is reported. The strategy is based on a reductive-oxidative process to complete the transposition of the leaving group in chiral oxathiolanes with knownconfiguration.
Substituted 1,3-oxathiolanes with antiviral properties
申请人:BioChem Pharma, Inc.
公开号:US06369066B1
公开(公告)日:2002-04-09
This invention relates to single enantiomers of novel cis-substituted 1,3-oxathiolanes, of the formula (I):
wherein;
R1 is hydrogen, and R2 is cytosine or 5-fluorocytosine;
and pharmaceutically acceptable salts and esters thereof.
This invention also relates to pharmaceutical compositions containing them and to the use of these compounds as antiviral agents, particularly in combination therapy.
Anti-Human Immunodeficiency Virus and Anti-Hepatitis-B Virus Activities and Toxicities of the Enantiomers of 2'-Deoxy-3'-oxa-4'-thiocytidine and Their 5-Fluoro Analogs in Vitro
作者:Tarek S. Mansour、Haolun Jin、Wei Wang、Elizabeth U. Hooker、Clare Ashman、Nick Cammack、Horacio Salomon、Antonietta R. Belmonte、Mark A. Wainberg