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    • 4. 发明专利
    • Crystalline erlotinib hydrochloride process
    • NZ630289A
    • 2016-08-26
    • NZ63028913
    • 2013-08-14
    • SHILPA MEDICARE LTD
    • PUROHIT PRASHANTCHATURVEDI AKSHAYKANTSHRAWAT VIMAL KUMARRAFIUDDINSINGH VINOD KUMAR
    • C07D239/94
    • The disclosure relates to a process for preparation of Crystalline Erlotinib HCl (N-(3-ethynylphenyl)-6,7-bis(2-methoxyethoxy)-4-quinazolinamine hydrochloride) Form-SE characterized by X-ray powder diffraction pattern comprising at least 5 characteristic 2&thetas;° peaks selected from the XRPD peak set of 5.60, 10.00, 11.40, 13.00, 13.50, 15.20, 18.40, 20.65, 21.86, 23.5, 31.80, 32.13, 32.80, 34.40 ± 0.20 2&thetas;°, DSC isotherm comprising the endothermic peaks ranging between 213 to 217°C (Peak -1) and 225 to 235 °C (Peak -2) and IR absorption characteristic peaks at approximately 3278 cm-1, 1948 cm-1, 1871 cm-1, 1632 cm-1, 1164 cm-1, 1024 cm-1, 940 cm-1 and 742 cm-1 useful as active pharmaceutical ingredient in pharmaceutical compositions for the treatment cancer. The process for preparing Erlotinib hydrochloride crystalline Form-SE comprises the steps of: (a) Combining the Erlotinib free base or salt with a mixture of ketone and alcohol solvent both having water content up to less than 0.5% w/w; (b)raise the temperature up to about 40- 70°C; (c) stir the solution at same temperature up to a time between 15 to 60 minutes; (d) combine isopropanol and HC1 mixture; (e) optionally maintain the mixture for 10-60 minutes; (f) cooling the mixture up to about 10-40°C; and (g) isolating the crystalline material.
    • 5. 发明专利
    • Process for preparation of fingolimod and its salts
    • NZ630290A
    • 2016-09-30
    • NZ63029014
    • 2014-01-11
    • SHILPA MEDICARE LTD
    • SHRAWAT VIMAL KUMARRAFIUDDIN DRCHATURVEDI AKSHAYKANT
    • C07C209/50C07C211/17C07C215/28
    • Disclosed is a process for the preparation of Fingolimod hydrochloride (I) comprising: a) reacting 2-acetamido-1,3-diacetoxy-2-(2-phenylethyl)propane with octanoyl chloride in presence of a Friedel-Craft’s catalyst (such a lewis acid selected from FeCl3, AlCl3, TiCl4, ZnCl2 or BF3) and a halohydrocarbon organic solvent (such as dichloromethane, dichloroethane or chloroform) under inert atmosphere at room temperature to form 2-acetamido-2-(4-octanoylphenethyl)propane-1,3-diyl diacetate; b) hydrogenating 2-acetamido-2-(4-octanoylphenethyl)propane-1,3-diyl diacetate with 10% Pd/C at temperature ranging between 20 and -35°C in presence of ethanol and acetic acid, wherein the ratio of ethanol to acetic acid is in the ratio of 8:2 to get 2-acetamido-2-(4-octylphenethyl)propane-1,3-diyl diacetate; c) optionally recrystallizing the product obtained in step b) with a hydrocarbon solvent (such as n-hexane, n-heptane) or an alcoholic solvent (such as methanol and/or ethanol) or both, to get purified 2-acetamido-2-(4-octyl phenethyl)propane-1,3-diyl diacetate; d) treating 2-acetamido-2-(4-octylphenethyl)propane-1,3-diyl diacetate in the presence of organic solvents selected from C1-C4 alcohol (such as methanol, ethanol or isopropanol) and a base (such as an alkali metal hydroxide selected from LiOH, NaOH or KOH) to get Fingolimod free base; and e) converting Fingolimod free base into Fingolimod hydrochloride (I) in an organic solvent and 5 to 15% w/w IPA- HCl solution at pH ranging between 1.00 to 3.00, wherein Fingolimod hydrochloride may be further provided in crystalline form ß being characterized by X-ray powder diffraction pattern having, characteristic 2&thetas;° peaks in XRPD peak set of 3.54, 7.10, 10.67, 15.36, 17.83, 20.53, 21.49, 23.29, 25.12, 26.68 and 29.22 ± 0.1 2&thetas;°.