1455091-04-9Relevant articles and documents
Preparation method of isoquinoline derivative
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, (2021/02/10)
Disclosed is a preparation method of an isoquinoline derivative. A preparation method of a compound represented by a general formula II, i.e., 4-hydroxy-1-methyl-7-phenoxy isoquinoline-3-formate, is provided, wherein substituent definitions are as defined in the specification. The preparation method comprises the following steps of: under an acidic condition, dissolving a compound shown as a structural formula III in dimethyl sulfoxide, catalyzing by a ferrous ion (Fe) catalyst, and oxidizing by H2O2 to obtain the 4-hydroxy-1-methyl- 7-phenoxy isoquinoline-3-formate shown as the structuralformula II. By using the method, the production efficiency can be greatly improved, the production cost is reduced, the product purity can be ensured, and the method is suitable for industrial mass production.
IMPROVED PROCESS FOR THE PREPARATION OF ROXADUSTAT
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Page/Page column 13; 14; 19; 20, (2021/10/30)
A synthetic route for the preparation of Roxadustat, or a pharmaceutically acceptable salt thereof. Each route involves several novel intermediates and avoids the use of column chromatography.
Isoquinolone compound and application thereof
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Paragraph 0199; 0200; 0203; 0204, (2018/09/08)
The invention relates to an isoquinolone compound and application thereof. The invention in particular relates to an isoquinolone compound used as a HIF prolyl hydroxylase inhibitor (HIF-PHI) and a pharmaceutical composition thereof. Moreover, the present invention provides the application of the isoquinolinone compound or the pharmaceutical composition thereof in the preparation of a medicament for preventing or treating HIF-associated or HIF-mediated diseases as anemia or ischemia, local ischemia or hypoxia.
PROCESS FOR MAKING ISOQUINOLINE COMPOUNDS
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Paragraph 0235, (2014/02/15)
The present invention relates to methods for making isoquinoline compounds and the intermediate compounds achieved thereby. Such compounds can be used to prepare compounds and compositions capable of decreasing HIF hydroxylase enzyme activity, thereby increasing the stability and/or activity of hypoxia inducible factor (HIF).
4 -HYDROXY- ISOQUINOLINE COMPOUNDS AS HIF HYDROXYLASE INHIBITORS
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Paragraph 0167, (2013/09/26)
The present invention relates to novel compounds of formula (I), and compositions capable of inhibiting PHD1 enzyme activity selectively over other isoforms, for example, PHD2 and/or PHD3 enzymes. The invention also relates to compounds of formula (I) for use in disorders such as muscle degeneration, colitis, IBD, and certain ischemias.