Processes for the diastereoselective separation of nucleoside analogue
申请人:BioChem Pharma, Inc.
公开号:US05663320A1
公开(公告)日:1997-09-02
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.
Processes for the diastereoselective synthesis of nucleoside analogues
申请人:BioChem Pharma Inc.
公开号:US05696254A1
公开(公告)日:1997-12-09
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.
Disclosed are novel processes for preparing 1,3-dioxolane nucleosides of general formula I and II:
1
wherein B is a purine or pyrimidine base or an analog or derivative thereof. The invention also provides intermediates for use in the preparation of these compounds.
Intermediates in the synthesis of 1,3-oxathiolanyl cytosine nucleoside
申请人:BioChem Pharma Inc.
公开号:US05693787A1
公开(公告)日:1997-12-02
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.