Patents Assigned to Hetero Research Foundation
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Publication number: 20130011477Abstract: The present invention relates to a compressed film-coated tablet comprising imatinib its pharmaceutically acceptable salts there of in an amount of more than 80% based on the total weight of the finished dosage form.Type: ApplicationFiled: March 29, 2010Publication date: January 10, 2013Applicant: HETERO RESEARCH FOUNDATIONInventors: Bandi Parthasaradhi Reddy, Podili Khadgapathi, Pothireddy Venkateswar Reddy, Muppidi Vanaja Kumari
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Patent number: 8329740Abstract: The present invention provides a novel crystalline form of sunitinib malate, process for its preparation and to pharmaceutical composition containing it. The present invention also provides a process for preparation of sunitinib malate crystal form I. Thus, for example, sunitinib malate was added to water, the mixture was heated to 80 deg C. to obtain a clear solution and stirred for 30 minutes at 80 deg C., slowly cooled to room temperature and the solution was subjected to freeze drying at about ?90 deg C. for 8 hours to give sunitinib malate crystalline form III.Type: GrantFiled: January 2, 2009Date of Patent: December 11, 2012Assignee: Hetero Research FoundationInventors: Bandi Parthasaradhi Reddy, Kura Rathnakar Reddy, Rapolu Raji Reddy, Dasari Muralidhara Reddy, Thungathurthy Srinivasa Rao
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Publication number: 20120288563Abstract: Described herein is pure amorphous darunavir, methods of making pure amorphous darunavir and pharmaceutical compositions containing amorphous darunavir and a pharmaceutically acceptable excipient.Type: ApplicationFiled: June 22, 2012Publication date: November 15, 2012Applicant: HETERO RESEARCH FOUNDATIONInventors: BandiParthasaradhi Reddy, Kura Rathnakar Reddy, DasariMuralidhara Reddy, RapoluRaji Reddy, KesireddySubashChander Reddy, BandiVamsi Krishna
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Publication number: 20120232069Abstract: The present invention relates to a process for the preparation of crystalline non-hygroscopic form H1 of efavirenz, and pharmaceutical compositions containing it. In accordance with the present invention efavirenz was dissolved in acetone at 25° C.-30° C., the solution was slowly added to water at 0° C.-5° C., the separated solid was filtered, washed with mixture of acetone and water and dried at 25° C.-35° C. under below 65% relative humidity for 18 hours to give crystalline non-hygroscopic efavirenz form H1.Type: ApplicationFiled: December 22, 2008Publication date: September 13, 2012Applicant: HETERO RESEARCH FOUNDATIONInventors: Bandi Parthasaradhi Reddy, Kura Rathnakar Reddy, Rapolu Raji Reddy, Dasari Muralidhara Reddy, Kesireddy Subash Chander Reddy
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Publication number: 20120225121Abstract: The present invention provides a suitable technique namely wet milling and the process for reducing the particle size of efavirenz and making a tablet or capsule formulation with desired bioavailability equivalent to the reference listed drug without loosing its characteristics.Type: ApplicationFiled: November 4, 2009Publication date: September 6, 2012Applicant: HETERO RESEARCH FOUNDATIONInventors: Bandi Parthasarad-Hi Reddy, Podili Khadgapathi, Goli Kamalakar Reddy
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Publication number: 20120215003Abstract: The present invention relates to process for the resolution of omeprazole. The present invention further provides a novel compound of enantiomers of omeprazole cyclic amine salt and a process for preparing it. The present invention also provides a solid of (R)- or (S)-omeprazole cyclic amine salt and a process for preparing it. The present invention also provides a process for the preparation of esomeprazole magnesium dihydrate substantially free of its trihydrate form. The present invention also provides a process for the preparation of recovery of chiral BINOL.Type: ApplicationFiled: November 12, 2009Publication date: August 23, 2012Applicant: HETERO RESEARCH FOUNDATIONInventors: Bandi Parthasaradhi Reddy, Kura Rathnakar Reddy, Rapolu Raji Reddy, Dasari Muralidhara Reddy, Bandi Vamsi Krishna, Voggu Ramesh Reddy
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Publication number: 20120197021Abstract: The present invention relates to process for preparation of optical resolution of substituted 2-(2-pyridinylmethylsulphinyl)-1H-benzimidazoles either as a single enantiomer or in an enantiomerically enriched form. Thus, for example, R-1,1?-binaphtyl-2-2?-diyl hydrogen phosphate was reacted with 2-[[[3-methyl-4-(2,2,2-trifluoro-ethoxy)-2-pyridinyl]methyl]sulfinyl]-1H-benzimidazole (Lansoprazole) in a mixture of benzene and cyclohexane to obtain diasteremeric complexes. The diasteremeric complexes were subjected to fractional crystallization to obtain R-2-[[[3-methyl-4-(2,2,2-trifluoro-ethoxy)-2-pyridinyl]methyl]sulfinyl]-1H-benzimidazole.R-1,1?-binaphthyl-2-2?-diyl hydrogen phosphate. The separated isomer was treated with sodium bicarbonate in a mixture of ethyl acetate and water to obtain R-2-[[[3-methyl-4-(2,2,2-trifluoro-ethoxy)-2-pyridinyl]methyl]sulfinyl]-1H-benzimidazole (dexlansoprazole).Type: ApplicationFiled: October 9, 2009Publication date: August 2, 2012Applicant: HETERO RESEARCH FOUNDATIONInventors: Bandi Parthasaradhi Reddy, Kura Rathnakar Reddy, Rapolu Raji Reddy, Dasari Muralidhara Reddy, Bandi Vamsi Krishna, Ayyalasomayajula Satya Srinivas
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Publication number: 20120107397Abstract: The present invention relates to the stable pharmaceutical composition comprising valsartan or a pharmaceutically acceptable salt thereof with mannitol as a filler and povidone as binder. The present invention also relate to the valsartan or pharmaceutically acceptable salt thereof in combination with hydrochlorothiazide or amlodipine or both; and optionally one or more additional excipients.Type: ApplicationFiled: July 3, 2009Publication date: May 3, 2012Applicant: Hetero Research FoundationInventors: Bandi Parthasaradhi Reddy, Male Srinivas Reddy, Pothireddy Venkateswar Reddy, Muppidi Vanaja Kumari
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Publication number: 20120077772Abstract: The present invention relates to the oral solid pharmaceutical composition comprising lamivudine or a pharmaceutically acceptable salt thereof with isomalt as a filler. The present invention also relate to the combination of lamivudine and other Anti-HIV agents. Thus, for example, the present invention provides a stable tablet formulation comprising lamivudine, isomalt, crospovidone, calcium stearate and opadry white.Type: ApplicationFiled: May 27, 2009Publication date: March 29, 2012Applicant: HETERO RESEARCH FOUNDATIONInventors: Bandi Parthasaradhi Reddy, Male Srinivas Reddy, Pothireddy Venkateswar Reddy, Muppidi Vanaja Kumari
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Publication number: 20120035211Abstract: The present invention provides novel polymorphs of saquinavir, processes for their preparation and pharmaceutical compositions comprising them. The present invention also provides a process for purification of saquinavir. The present invention further provides a novel process for preparation of known saquinavir crystalline form I.Type: ApplicationFiled: February 17, 2009Publication date: February 9, 2012Applicant: HETERO RESEARCH FOUNDATIONInventors: Bandi Parthasaradhi Reddy, Kura Rathnakar Reddy, Rapolu Raji Reddy, Dasari Muralidhara reddy, Kesireddy Subash Chander Reddy, Bhimireddy Srinivasa Reddy
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Publication number: 20120015987Abstract: The present invention provides a novel crystalline form of atazanavir sulfate, process for its preparation and to pharmaceutical composition containing it. In accordance with the present invention atazanavir sulfate was dissolved in methanol, to the solution was added ethyl acetate, the solid obtained was collected by filtration and dried to give atazanavir sulfate crystalline form H1.Type: ApplicationFiled: January 12, 2009Publication date: January 19, 2012Applicant: HETERO RESEARCH FOUNDATIONInventors: Bandi Parthasaradhi Reddy, Kura Rathnakar Reddy, Rapolu Raji Reddy, Dasari Muralidhara Reddy, Kesireddy Subash Chander Reddy
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Publication number: 20110313035Abstract: The present invention provides novel solvated forms of darunavir and processes for there preparation. The present invention also provides novel process for preparation of darunavir amorphous form and pharmaceutical composition comprising it. Thus, for example, darunavir 2-methyl-2-butanol solvate was dissolved in methylene dichloride, distilled under vacuum at 45° C. to obtain a residue, cyclohexane was added to the residue and stirred for 30 hours at 20 to 25° C., and the separated solid was filtered, washed with cyclohexane and dried under vacuum at 50° C. for 12 hours to yield darunavir amorphous form.Type: ApplicationFiled: December 16, 2009Publication date: December 22, 2011Applicant: HETERO RESEARCH FOUNDATIONInventors: Bandi Parthasaradhi Reddy, Kura Rathnakar Reddy, Dasari Muralidhara Reddy, Rapolu Raji Reddy, Kesireddy Subash Chander Reddy, Bandi Vamsi Krishna
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Publication number: 20110306647Abstract: The present invention provides a novel crystalline form of sunitinib malate, process for its preparation and to pharmaceutical composition containing it. The present invention also provides a process for preparation of sunitinib malate crystal form I. Thus, for example, sunitinib malate was added to water, the mixture was heated to 80 deg C. to obtain a clear solution and stirred for 30 minutes at 80 deg C., slowly cooled to room temperature and the solution was subjected to freeze drying at about ?90 deg C. for 8 hours to give sunitinib malate crystalline form III.Type: ApplicationFiled: January 2, 2009Publication date: December 15, 2011Applicant: HETERO RESEARCH FOUNDATIONInventors: Bandi Parthasaradhi Reddy, Kura Rathnakar Reddy, Rapolu Raji Reddy, Dasari Muralidhara Reddy, Thungathurthy Srinivasa Rao
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Publication number: 20110294839Abstract: The present invention provides a novel cyclohexane solvate form of lopinavir, and a process for its preparation thereof. The present invention also provides a novel desolvated crystalline form of lopinavir, process for its preparation and to pharmaceutical composition containing it. Thus, for example, lopinavir cyclohexane solvate was heated at 100° C. for 10 hours to give lopinavir desolvated crystalline form H1.Type: ApplicationFiled: February 6, 2009Publication date: December 1, 2011Applicant: HETERO RESEARCH FOUNDATIONInventors: Bandi Parthasaradhi Reddy, Kura Rathnakar Reddy, Rapolu Raji Reddy, Dasari Muralidhara Reddy, Kesireddy Subash Chander Reddy
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Publication number: 20110263865Abstract: The present invention provides a novel isopropyl acetate solvate form of zolmitriptan, and a process for its preparation thereof. The present invention also provides a process for preparation of zolmitriptan polymorph A. Thus, for example, zolmitriptan isopropanol solvate was dissolved in isopropyl acetate at 25 deg C, the contents were heated to reflux for 30 minutes and the separated solid was filtered, washed with isopropyl acetate to give zolmitriptan isopropyl acetate solvate.Type: ApplicationFiled: December 24, 2008Publication date: October 27, 2011Applicant: HETERO RESEARCH FOUNDATIONInventors: Bandi Parthasaradhi Reddy, Kura Rathnakar Reddy, Rapolu Raji Reddy, Dasari Muralidhara Reddy, Thungathurthy Srinivasa Rao
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Publication number: 20110245497Abstract: Cis(±)-4-Amino-1-[2-(hydroxymethyl)-1,3-oxathiolan-5-yl]-2(1H)-pyrimidinone is reacted with S(+)-1,1?-binaphthyl-2,2?-diyl hydrogen phosphate in methanol to obtain diastereomeric compounds. The diastereomeric compounds are subjected to selective crystallization to obtain (2R-Cis)-4-Amino-1-[2-(hydroxymethyl)-1,3-oxathiolan-5-yl]-2(1H)-pyrimidinone 1,1?-binaphthyl-2,2?-diyl hydrogen phosphate. (2R-Cis)-4-Amino-1-[2-(hydroxymethyl)-1,3-oxathiolan-5-yl]-2(1H)-pyrimidinone 1,1?-binaphthyl-2,2?-diyl hydrogen phosphate is treated with hydrochloric acid in water to obtain (2R-cis)-4-Amino-1-[2-(hydroxymethyl)-1,3-oxathiolan-5-yl]-2(1H)-pyrimidinone.Type: ApplicationFiled: December 8, 2008Publication date: October 6, 2011Applicant: HETERO RESEARCH FOUNDATIONInventors: Bandi Parthasaradhi Reddy, Kura Rathnakar Reddy, Rapolu Raji Reddy, Dasari Muralidhara Reddy, Ayyalasomayajula Satya Srinivas
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Publication number: 20110237822Abstract: The present invention provides a process for preparation of a key intermediate of valsartan in a pure form and use of this intermediate for the preparation of valsartan or a pharmaceutically acceptable salt in pure form.Type: ApplicationFiled: April 7, 2008Publication date: September 29, 2011Applicant: HETERO RESEARCH FOUNDATIONInventors: Bandi Parthasaradhi Reddy, Kura Rathnakar Reddy, Rapolu Raji Reddy, Dasari Muralidhara Reddy, Matta Ramakrishna Reddy
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Publication number: 20110218204Abstract: The present invention relates to certain novel salts of Betulinic acid derivatives, to process for preparing such compounds, to use the compounds in treating diseases or disorders mediated by HIV infection, to methods for their therapeutic use and to pharmaceutical compositions containing them.Type: ApplicationFiled: January 10, 2011Publication date: September 8, 2011Applicant: HETERO RESEARCH FOUNDATION, HETERO DRUGS LIMITEDInventors: Bandi PARTHASARADHI REDDY, Vedula MANOHAR SHARMA, Kura RATHNAKAR REDDY, Musku MADHANMOHAN REDDY
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Publication number: 20110213155Abstract: The present invention relates to process for optical purification of esomeprazole or a salt thereof. Thus, esomeprazole sodium having 20 to 1% R-omeprazole by weight of the sum of the contents of esomeprazole and R-omeprazole is precipitated from a solvent selected from an alcohol or a mixture of alcohols and the precipitated solid is collected to obtain optically pure esomeprazole sodium.Type: ApplicationFiled: November 18, 2008Publication date: September 1, 2011Applicant: HETERO RESEARCH FOUNDATIONInventors: Bandi Parthasaradhi Reddy, Kura Rathnakar Reddy, Rapolu Raji Reddy, Dasari Muralidhara Reddy
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Publication number: 20110212990Abstract: The present invention relates to novel polymorph of moxifloxacin hydrochloride, processes for its preparation and to pharmaceutical compositions containing it. Thus, for example moxifloxacin hydrochloride is suspended in methanol and water and the pH is adjusted to 1.0-2.0 with concentrated hydrochloric acid at 25° C. and the separated solid is collected and dried to obtain moxifloxacin hydrochloride monohydrate polymorph IV.Type: ApplicationFiled: November 6, 2008Publication date: September 1, 2011Applicant: HETERO RESEARCH FOUNDATIONInventors: Bandi Parthasaradhi Reddy, Kura Rathnakar Reddy, Rapolu Raji Reddy, Dasari Muralidhara Reddy, Musku Madhanmohan Reddy, Deevireddy Bharath Reddy