The present invention provides a process for obtaining highly pure crystalline form of oseltamivir free base, thus, for example, suspending or dissolving impure or non-crystalline oseltamivir free base in a hydrocarbon solvent and then isolating crystals to obtain oseltamivir free base in well defined crystalline form. The present invention also provides a process for preparation of oseltamivir phosphate in high purity.
SYSTEMS AND METHODS FOR IDENTIFYING COMBINATIONS OF COMPOUNDS OF THERAPEUTIC INTEREST
申请人:Califano Andrea
公开号:US20090269772A1
公开(公告)日:2009-10-29
Systems, methods, and apparatus for searching for a combination of compounds of therapeutic interest are provided. Cell-based assays are performed, each cell-based assay exposing a different sample of cells to a different compound in a plurality of compounds. From the cell-based assays, a subset of the tested compounds is selected. For each respective compound in the subset, a molecular abundance profile from cells exposed to the respective compound is measured. Targets of transcription factors and post-translational modulators of transcription factor activity are inferred from the molecular abundance profile data using information theoretic measures. This data is used to construct an interaction network. Variances in edges in the interaction network are used to determine the drug activity profile of compounds in the subset of compounds. The drug activity profiles are used to form a filter set of compound combinations from the subset of compounds.
US7732632B2
申请人:——
公开号:US7732632B2
公开(公告)日:2010-06-08
[EN] PROCESS FOR OBTAINING PURE OSELTAMIVIR<br/>[FR] PROCEDE D'OBTENTION D'OSELTAMIVIR PUR
申请人:HETERO DRUGS LTD
公开号:WO2007077570A1
公开(公告)日:2007-07-12
[EN] The present invention provides a process for obtaining highly pure crystalline form of oseltamivir free base, thus, for example, suspending or dissolving impure or non-crystalline oseltamivir free base in a hydrocarbon solvent and then isolating crystals to obtain oseltamivir free base in well defined crystalline form. The present invention also provides a process for preparation of oseltamivir phosphate in high purity. [FR] La présente invention concerne un procédé destiné à obtenir la forme cristalline de haute pureté de la base libre de l'oséltamivir. Par exemple, selon le procédé, la base libre de l'oséltamivir impure ou non cristalline est dissoute ou mise en suspension dans un solvant hydrocarboné, puis les cristaux sont isolés pour obtenir la base libre de l'oséltamivir sous une forme cristalline bien définie. L'invention concerne également un procédé de préparation de phosphate d'oséltamivir de pureté élevée.