摘要:
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.
摘要:
The present invention relates to a process for producing predominantly pure cis nucleoside analogues of formula (I), wherein X is S, or O; Y is S, CH.sub.2, O or CH(R); wherein R is azido or halogen; and R.sub.2 is a purine or pyrimidine base; via the coupling of a silylated purine or pyrimidine base in the presence of an appropriate Lewis acid with a bicyclic intermediate of formula (III) wherein Z is S or O; followed by conversion of the resulting intermediate of formula (II) to an alkyl ester and reduction to yield a compound of formula (I). ##STR1##
摘要:
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.
摘要:
The present invention relates to heterocyclic compounds having antiviral activity. In particular, compounds of formula (I): wherein B, W, X, Y, R.sub.1, R.sub.2, R.sub.3, R.sub.4 and n are as defined herein, are useful in the therapy and prophylaxis of cytomegalovirus (CMV) infection in mammals.
摘要:
The invention is related to phosphorus substituted therapeutic agents, compositions containing such phosphorus substituted agents, and therapeutic methods that include the administration of such phosphorus substituted agents, as well as to processes and intermediates useful for preparing such agents.
摘要:
Novel HIV integrase inhibitor compounds having at least one phosphonate group, protected intermediates thereof, and methods for inhibition of HIV-integrase are disclosed.
摘要:
The present invention relates to highly diastereoselective processes for production of cis-nucleosides and nucleoside analogues and derivatives in high optical purity and intermediates useful in those processes.
摘要:
The present application includes novel inhibitors of HCV, compositions containing such compounds, therapeutic methods that include the administration of such compounds.