| Inke, S.A. Patent applications |
| Patent application number | Title | Published |
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| 20100240919 | Process For Obtaining Valine Derivatives Useful For Obtaining A Pharmaceutically Active Compound - The invention provides a method for obtaining the intermediate (II), useful for manufacturing Valsartan and a drug directed to a treatment of arterial hypertension or heart failure. The process comprises a) Imination of the aldehyde group of a compound (VII) by L-Valine (IV) salts with organic or inorganic bases and a polar solvent or water, where X means halogen or an —OSO2R group, where R is CF3, tolyl, methyl or F; to give an imine-type compound (VIII), where B+ is the protonated form of an organic base or an alkaline cation; b) Reduction of the imine group of the compound (VIII) followed by acidification, to give the compound (VI); and c) N-Acylation of the compound (VI) with valeryl chloride to give the compound (II). Steps a) and b) can be performed in a “one pot” reaction. | 09-23-2010 |
| 20100204264 | POLYMORPHIC FORM OF GRANISETRON BASE, METHODS FOR OBTAINING IT AND FORMULATION CONTAINING IT - Relates to a new polymorphic form of Granisetron base, Form I, to methods for obtaining thereof, to the method for obtaining Granisetron.HCl and its use for preparing pharmaceutical formulations. The Form I is characterized by the X-ray powder diffractogram shown in FIG. | 08-12-2010 |
| 20090318683 | METHOD FOR PREPARING A MIXED SOLVATE OF OLANZAPINE - An improved method is provided for preparing a mixed solvate of olanzapine/water/tetrahydrofuran in a proportion of 1:1:1/2. Said improvement is characterised in that said mixed solvate is basically prepared by means of methylation of the N-desmethylolanzapine with dimethyl sulphate, using tetrahydrofuran and water as solvents. | 12-24-2009 |
| 20090124677 | Method For Obtaining A Pharmaceutically Active Compound (Irbesartan) And Its Synthesis Intermediate - It is provided a method for obtaining Irbesartan polymorph A, with few synthesis steps, by coupling the intermediate of formula (II) with the compound of formula (III), neutralising one of its alkaline salts in an aqueous medium and recrystallising the crude product obtained. The utilisation of said method obviates protection and deprotection of the tetrazole ring and is therefore of considerable interest for obtaining Irbesartan on a large industrial scale. The invention also refers to the synthesis intermediate of formula (II). | 05-14-2009 |
| 20090111849 | CRYSTALLINE SALT OF MONTELUKAST - Cyclopropylamine salt of montelukast in crystalline form and its use for the preparation of highly pure amorphous montelukast sodium. | 04-30-2009 |
| 20080306279 | Synthesis Intermediates Useful For Preparing Zolmitriptan - In particular, this invention relates to the synthesis intermediates (IV), (V), (VI) and (VIII) useful for preparing zolmitriptanzohnitriptan or a pharmaceutically acceptable salt thereof, which includes a) Preparation of the diazonium salt of the aniline hydrochloride (II); followed by reduction and acidification to give hydrazine (III); b) In situ Reaction of the hydrazine hydrochloride (III) with α-keto-δ-valerolactone, to give the hydrazone (IV); c) Fischer indole synthesis of the hydrazone (IV), to give the pyranoindolone of formula (V); d) Transesterification of the pyranoindolone (V) to provide the compound (VI), in which R means a straight or branched C1-C4 alkyl; e) Conversion of the hydroxyl group of the compound (VI) into dimethylamino to give the indolecarboxylate (VII), in which R means a straight or branched C1-C4 alkyl; f) Saponification of the 2-carboalkoxy group of the compound (VII), to provide indolecarboxylic acid (VIII); g) Decarboxylation of the indolecarboxylic acid (VIII), to provide zolmitriptan and, eventually, to provide a pharmaceutically acceptable salt thereof. | 12-11-2008 |
| 20080280884 | Mixed Solvate of Olanzapine, Method for Preparing It and Method for Preparing Form I of Olanzapine Therefrom - Said mixed solvate is a solvate of olanzapine/water/tetrahydrofuran in the proportion 1:1:1/2 (I). The method for preparing said solvate comprises treating a crude anhydrous olanzapine with a mixture of tetrahydrofuran/water. The method for preparing Form I of olanzapine includes desolvating the mixed solvate of formula I, by means of drying, in vacuo and under temperature-controlled conditions. | 11-13-2008 |
