Co Crystals Of 4 [4 [3 Chloro 4 [1 (2 Pyridyl) 2 Hydroxy Ethoxy]Pyrazolo[1,5 A]Pyridin 6 Yl] 5 Methyl Triazol 1 Yl]Piperidine 1 Carbonitrile Derivatives With Gallic Acid And Nicotine Amide

Abstract: The present invention relates to cocrystalline forms of 4-[4-[3- chloro-4-[l-(5-fluoro-2-pyridyl)-2-hydroxy-ethoxy]pyrazolo[l,5- a]pyridin-6-yl]-5-methyl-triazol-l-yl]piperidine-l-carbonitrile, R- enantiomer ("Isomer 2"), with gallic acid (I), and to cocrystalline forms of 4-[4-[3-chloro-4-[l-(2-pyridyl)-2- hydroxy-ethoxy]pyrazolo[l,5-a]pyridin-6-yl]-5-methyl-triazol-l- yl]piperidine-l-carbonitrile, R-enantiomer ("Isomer A"), with gallic acid or nicotine amide (II) The compounds are fibroblast growth factor receptor 3 (FGFR3) inhibitors for use in methods of treatment of e.g. cancer. Provided herein are also methods for the preparation of said cocrystalline forms.

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