Patents Assigned to Actavis Group PTC EHF
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Patent number: 9006443Abstract: Disclosed herein is an improved, commercially viable and industrially advantageous process for the preparation of quinoline-3-carboxamide derivatives such as laquinimod, or a pharmaceutically acceptable salt thereof, in high yield and purity.Type: GrantFiled: September 9, 2013Date of Patent: April 14, 2015Assignee: Actavis Group PTC ehfInventors: Girish Dixit, Krishnadatt Sharma, Kundan Singh Shekhawat, Nitin Sharadchandra Pradhan, Jon Valgeirsson
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Patent number: 8981154Abstract: Provided herein are novel solid state forms of tapentadol salts, process for their preparation, pharmaceutical compositions, and method of treating thereof. The tapentadol salts include an L-(?)-camphorsulfonate salt, a dibenzoyl-(L)-tartrate salt, a dibenzoyl-(D)-tartrate salt, a malate salt, a maleate salt, or a salicylate salt.Type: GrantFiled: September 11, 2012Date of Patent: March 17, 2015Assignee: Actavis Group PTC EHFInventors: Mayur Devjibhai Khunt, Sandipan Prabhurao Bondge, Nitin Sharadchandra Pradhan, Depashri Vikas Ahirao
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Patent number: 8859769Abstract: Provided herein are improved, commercially viable and industrially advantageous processes for the preparation of a substantially pure ticagrelor intermediate, 4,6-dichloro-5-nitro-2-(propylthio)pyrimidine, Formula (II). The intermediate is useful for preparing ticagrelor, or a pharmaceutically acceptable salt thereof in high yield and purity.Type: GrantFiled: February 15, 2011Date of Patent: October 14, 2014Assignee: Actavis Group PTC EHFInventors: Anil Shahaji Khile, Jayesh Patel, Nikhil Trivedi, Nitin Sharadchandra Pradhan
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Publication number: 20140206867Abstract: Disclosed herein is an improved process for the preparation of substituted cyclopentanamine derivatives, which are useful intermediates in the preparation of triazolo[4,5-d]pyrimidine compounds. Particularly described is an improved, commercially viable and industrially advantageous process for the preparation of a ticagrelor intermediate, [3aR-(3a?,4?,6?,6a?]-2-[[6-amino-2,2-dimethyltetrahydro-4H-cyclopenta-1,3-dioxol-4-yl]oxy]-ethanol, alternatively named, 2-[[(3aR,4S,6R,6aS)-6-amino-2,2-dimethyltetrahydro-3aH-cyclopenta[d][1,3]-dioxol-4-yl]oxy]-1-ethanol.Type: ApplicationFiled: June 13, 2012Publication date: July 24, 2014Applicant: Actavis Group PTC EHFInventors: Anil Shahaji Khile, Vignesh Nair, Nikhil Trivedi, Nitin Sharadchandra Pradhan
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Publication number: 20130317220Abstract: Provided herein is a novel process for the preparation of triazolo[4,5-d]pyrimidine derivatives. Provided particularly herein is a novel, commercially viable and industrially advantageous process for the preparation of highly pure ticagrelor or a pharmaceutically acceptable salt thereof. Provided further herein is a novel process for the preparation of substituted cyclopentanamine derivatives, which are useful intermediates in the preparation of triazolo[4,5-d]pyrimidine compounds. Provided particularly herein is a novel, commercially viable and industrially advantageous process for the preparation of a ticagrelor intermediate, 2-[[(3aR,4S,6R,6aS)-6-amino-2,2-dimethyltetrahydro-3aH-cyclopenta[d][1,3]-dioxol-4-yl]oxy]-1-ethanol.Type: ApplicationFiled: December 16, 2011Publication date: November 28, 2013Applicant: Actavis Group Ptc EhfInventors: Vignesh Nair, Nikhil Trivedi, Anil Shahaji Khile, Nitin Sharadchandra Pradhan
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Patent number: 8552194Abstract: Disclosed herein is an improved, commercially viable and industrially advantageous process for the preparation of quinoline-3-carboxamide derivatives such as laquinimod, or a pharmaceutically acceptable salt thereof, in high yield and purity.Type: GrantFiled: April 27, 2009Date of Patent: October 8, 2013Assignee: Actavis Group PTC EHFInventors: Girish Dixit, Krishnadatt Sharma, Kundan Singh Shekhawat, Nitin Sharadchandra Pradhan, Jon Valgeirsson
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Patent number: 8354428Abstract: Provided herein is a novel crystalline form of laquinimod, process for the preparation, pharmaceutical compositions, and method of treating thereof. Provided also herein are novel amorphous and polymorphic forms of laquinimod sodium, process for the preparation, pharmaceutical compositions, and method of treating thereof.Type: GrantFiled: June 30, 2009Date of Patent: January 15, 2013Assignee: Actavis Group PTC EHFInventors: Girish Dixit, Krishnadatt Sharma, Nitin Sharadchandra Pradhan, Jon Valgeirsson
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Patent number: 8314235Abstract: Provided herein is an improved, convenient, commercially viable and environmentally friendly process for the preparation of varenicline or a pharmaceutically acceptable salt thereof comprising reacting 1-(4,5-diamino-10-aza-tricyclo[6.3.1.02 7]dodeca-2(7),3,5-trien-10-yl)-2,2,2-trifluoro-ethanone with chloroacetaldehyde in the presence of an oxygen source. Provided further herein is an improved and industrially advantageous process for the preparation of 1-(4,5-diamino-10-aza-tricyclo[6.3.1.02 7]dodeca-2(7),3,5-trien-10-yl)-2,2,2-trifluoro-ethanone.Type: GrantFiled: August 31, 2009Date of Patent: November 20, 2012Assignee: Actavis Group PTC EHFInventors: Girish Dixit, Krishnadatt Sharma, Kundan Singh Shekhawat, Nitin Sharadchandra Pradhan
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Patent number: 8288592Abstract: Provided herein are novel solid state forms of tapentadol salts, process for their preparation, pharmaceutical compositions, and method of treating thereof. The tapentadol salts include an L-(?)-camphorsulfonate salt, a dibenzoyl-(L)-tartrate salt, a dibenzoyl-(D)-tartrate salt, a malate salt, a maleate salt, or a salicylate salt.Type: GrantFiled: September 21, 2010Date of Patent: October 16, 2012Assignee: Actavis Group PTC EHFInventors: Mayur Devjibhai Khunt, Sandipan Prabhurao Bondge, Vikas Daulatrao Ahirao, Depashri Vikas Ahirao, legal representative, Nitin Sharadchandra Pradhan
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Publication number: 20120100188Abstract: Provided herein are solid state forms of paliperidone salts, processes for preparation, pharmaceutical compositions, and method of treating thereof. Paliperidone is represented by the following structural formula (I): More particularly, provided are solid state forms of paliperidone acid addition salts, wherein the acid counter ion is provided by an acid selected from the group consisting of L-(+)-tartaric acid, p-toluenesulfonic acid, maleic acid, oxalic acid, fumaric acid, acetic acid and malic acid. Provided also herein is a process for preparing substantially pure paliperidone free base using the solid state forms of paliperidone salts.Type: ApplicationFiled: May 25, 2010Publication date: April 26, 2012Applicant: Actavis Group PTC ehfInventors: Girish Dixit, Anil Shahaji Khile, Vignesh Nair, Nitin Sharadechandra Pradhan
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Patent number: 8101769Abstract: Described herein is an improved, commercially viable and industrially advantageous process for the preparation of Repaglinide intermediate, ethyl (S)-2-ethoxy-4-[N-(1-(2-piperidino-phenyl)-3-methyl-1-butyl)-aminocarbonylmethyl]-benzoate. The process provides the Repaglinide intermediate in higher yield and purity compared to the previously disclosed processes, thereby providing for production of Repaglinide and its pharmaceutically acceptable salts in high purity and in high yield.Type: GrantFiled: February 14, 2008Date of Patent: January 24, 2012Assignee: Actavis Group PTC EHFInventors: Venkata Sasidhar Balla, Madhubabu Alapharthi, Nitin Sharadchandra Pradhan, Jon Valgeirsson
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Patent number: 8101597Abstract: The present invention relates to novel and stable salt forms of quetiapine, processes for preparation, pharmaceutical compositions, and method of treating thereof. More particularly, the present invention provides novel acid addition salts of quetiapine wherein the acid counter ion is provided by an acid selected from the group consisting of benzene sulfonic acid, dibenzoyl-L-(+)-tartaric acid and di-p-toluoyl-L-(+)-tartaric acid. The present invention also provides novel polymorphic forms of quetiapine salts selected from the group consisting of quetiapine hydrobromide, quetiapine sulfate, quetiapine nitrate and quetiapine citrate.Type: GrantFiled: May 7, 2008Date of Patent: January 24, 2012Assignee: Actavis Group PTC EHFInventors: Girish Dixit, Anil Shahaji Khile, Jayesh Laljibhai Patel, Nitin Sharadchandra Pradhan, Jon Valgeirsson
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Patent number: 8071767Abstract: Described herein is an improved, commercially viable and industrially advantageous process for the preparation of paliperidone intermediate 9-hydroxy-3-(2-chloroethyl)-2-methyl-4h-pyrido[1,2-a]pyrimidin-4-one and its hydrochloride salt. The process provides the paliperidone intermediate in higher yield and reduced reaction time compared to the previously disclosed processes, thereby providing for production of paliperidone and its pharmaceutically acceptable acid addition salts in high purity and in high yield.Type: GrantFiled: January 8, 2008Date of Patent: December 6, 2011Assignee: Actavis Group PTC EHFInventors: Uday Rajaram Bapat, Munusamy Jayamani, Sivaji Ravisaravanan, Vigneshwara Ravisankar
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Patent number: 7947699Abstract: Described is a highly stable amorphous form of imatinib mesylate having a water content of less than 0.5 percent by weight, based on the total weight of the amorphous imatinib mesylate, (anhydrous amorphous imatinib mesylate), a process for preparation thereof, and pharmaceutical compositions.Type: GrantFiled: January 9, 2009Date of Patent: May 24, 2011Assignee: Actavis Group PTC EHFInventors: Mayur Devjibhai Khunt, Nilesh Sudhir Patil, Haushabhau Shivaji Pagire, Nitin Sharadchandra Pradhan, Jon Valgeirsson
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Publication number: 20090181977Abstract: Described is a highly stable amorphous form of imatinib mesylate having a water content of less than 0.5 percent by weight, based on the total weight of the amorphous imatinib mesylate, (anhydrous amorphous imatinib mesylate), a process for preparation thereof, and pharmaceutical compositions.Type: ApplicationFiled: January 9, 2009Publication date: July 16, 2009Applicant: Actavis Group PTC ehfInventors: Mayur Devjibhai Khunt, Nilesh Sudhir Patil, Haushabhau Shivaji Pagire, Nitin Sharadchandra Pradhan, Jon Valgeirsson