Inventor

CHOU TA-SEN

US33 patents

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CHOU TA-SEN

LILLY CO ELI

Stereoselective glycosylation process for preparing 2&#39;-deoxy-2&#39;,2&#39;-difluoropurine and triazole nucleosides

Low temperature process for preparing alpha-anomer enriched 2-deoxy-2,2-difluoro-D-ribofuranosyl sulfonates

Stereoselective fusion glycosylation process for preparing 2&#39;-deoxy-2&#39;,2&#39;-difluoronucleosides and 2&#39;-deoxy-2&#39;-fluoronucleosides

Stereoselective fusion glycosylation process for preparing 2&#39;-deoxy-2&#39;,2&#39;-difluoronucleosides and 2&#39;-deoxy-2&#39;-fluoronucleosides

Process for preparing alpha-anomer enriched 2-deoxy-2,2-difluoro-D-ribofuranosyl sulfonates

Imtermediate in process to make 2&#39;, 2&#39;-difluoronucleosides

Process for and intermediates of 2&#39;,2&#39;-difluoronucleosides

Stereoselective glycosylation process for preparing 2&#39;-Deoxy-2&#39;, 2&#39;-difluoronucleosides and 2&#39;-deoxy-2&#39;-fluoronucleosides

Process for and intermediates of 2&#39;,2&#39;-difluoronucleosides

Stereoselective glycosylation process for preparing 2&#39;-Deoxy-2&#39;,2&#39;-difluoropyrimidine nucleosides and 2&#39;-deoxy-2&#39;-fluoropyrimidine nucleosides and intermediates thereof

Process for separating 2-deoxy-2,2-difluoro-D-ribofuranosyl alkylsulfonate anomers

Stereoselective anion glycosylation process for preparing 2&#39;-deoxy-2&#39;,2&#39;-difluoronucleosides and 2&#39;-deoxy-2&#39;-fluoronucleosides

Process for preparing 2&#39;,2&#39;-difluoronucleosides

2&#39;-deoxy-2&#39;, 2&#39;-difluoropyrimidine nucleosides and 2&#39;-deoxy-2&#39;-fluoropyrimidine nucleosides and intermediates

Process for preparing beta-anomer enriched 2-deoxy-2,2-difluoro-D-ribofuranosyl-arylsulfonates

Crystalline cephalosporin antibiotic salt

Process for preparing 2-chlorosulfinylazetidinones

Process for 3-exomethylenecepham sulfoxides

Process for preparing a 3-exomethylenecepham sulfoxide from penicillin sulfoxides

Process for preparing desacetoxycephalosporins

Process for preparing a cephalosporin compound

Process for preparing N-chloroimides

Process for preparing sulfinyl chlorides from penicillin sulfoxides

Process for 2-chlorosulfinylazetidin-4-ones

Removal of stannic chloride

Process for preparing pure cefamandole from alkali metal and ammonium salts thereof

Simplified process of forming crystalline ceftazidime pentahydrate

Process for preparing n-chloroimides

Novel silyl ester azetidine-2-sulfenate intermediates and process for preparing desacetoxycephalosporins

Process for preparing 3-acycloxymethyl-2-cephem compounds

Cephalosporin intermediate

Process for preparing n-chlorophthalimide

(unassigned)

Process for preparing alpha-anomer enriched 1-halo-2-deoxy-2,2-difluoro-D-ribofuranosyl derivatives

Stereoselective glycosylation process for preparing 2'-deoxy-2',2'-difluoropurine and triazole nucleosides

Stereoselective fusion glycosylation process for preparing 2'-deoxy-2',2'-difluoronucleosides and 2'-deoxy-2'-fluoronucleosides

Stereoselective fusion glycosylation process for preparing 2'-deoxy-2',2'-difluoronucleosides and 2'-deoxy-2'-fluoronucleosides

Imtermediate in process to make 2', 2'-difluoronucleosides

Process for and intermediates of 2',2'-difluoronucleosides

Stereoselective glycosylation process for preparing 2'-Deoxy-2', 2'-difluoronucleosides and 2'-deoxy-2'-fluoronucleosides

Process for and intermediates of 2',2'-difluoronucleosides

Stereoselective glycosylation process for preparing 2'-Deoxy-2',2'-difluoropyrimidine nucleosides and 2'-deoxy-2'-fluoropyrimidine nucleosides and intermediates thereof

Stereoselective anion glycosylation process for preparing 2'-deoxy-2',2'-difluoronucleosides and 2'-deoxy-2'-fluoronucleosides

Process for preparing 2',2'-difluoronucleosides

2'-deoxy-2', 2'-difluoropyrimidine nucleosides and 2'-deoxy-2'-fluoropyrimidine nucleosides and intermediates