Patents Assigned to Actavis Group PTC EHF
  • Patent number: 9006443
    Abstract: 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: Grant
    Filed: September 9, 2013
    Date of Patent: April 14, 2015
    Assignee: Actavis Group PTC ehf
    Inventors: Girish Dixit, Krishnadatt Sharma, Kundan Singh Shekhawat, Nitin Sharadchandra Pradhan, Jon Valgeirsson
  • Patent number: 8981154
    Abstract: 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: Grant
    Filed: September 11, 2012
    Date of Patent: March 17, 2015
    Assignee: Actavis Group PTC EHF
    Inventors: Mayur Devjibhai Khunt, Sandipan Prabhurao Bondge, Nitin Sharadchandra Pradhan, Depashri Vikas Ahirao
  • Patent number: 8859769
    Abstract: 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: Grant
    Filed: February 15, 2011
    Date of Patent: October 14, 2014
    Assignee: Actavis Group PTC EHF
    Inventors: Anil Shahaji Khile, Jayesh Patel, Nikhil Trivedi, Nitin Sharadchandra Pradhan
  • Publication number: 20140206867
    Abstract: 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: Application
    Filed: June 13, 2012
    Publication date: July 24, 2014
    Applicant: Actavis Group PTC EHF
    Inventors: Anil Shahaji Khile, Vignesh Nair, Nikhil Trivedi, Nitin Sharadchandra Pradhan
  • Publication number: 20130317220
    Abstract: 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: Application
    Filed: December 16, 2011
    Publication date: November 28, 2013
    Applicant: Actavis Group Ptc Ehf
    Inventors: Vignesh Nair, Nikhil Trivedi, Anil Shahaji Khile, Nitin Sharadchandra Pradhan
  • Patent number: 8552194
    Abstract: 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: Grant
    Filed: April 27, 2009
    Date of Patent: October 8, 2013
    Assignee: Actavis Group PTC EHF
    Inventors: Girish Dixit, Krishnadatt Sharma, Kundan Singh Shekhawat, Nitin Sharadchandra Pradhan, Jon Valgeirsson
  • Patent number: 8354428
    Abstract: 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: Grant
    Filed: June 30, 2009
    Date of Patent: January 15, 2013
    Assignee: Actavis Group PTC EHF
    Inventors: Girish Dixit, Krishnadatt Sharma, Nitin Sharadchandra Pradhan, Jon Valgeirsson
  • Patent number: 8314235
    Abstract: 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: Grant
    Filed: August 31, 2009
    Date of Patent: November 20, 2012
    Assignee: Actavis Group PTC EHF
    Inventors: Girish Dixit, Krishnadatt Sharma, Kundan Singh Shekhawat, Nitin Sharadchandra Pradhan
  • Patent number: 8288592
    Abstract: 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: Grant
    Filed: September 21, 2010
    Date of Patent: October 16, 2012
    Assignee: Actavis Group PTC EHF
    Inventors: Mayur Devjibhai Khunt, Sandipan Prabhurao Bondge, Vikas Daulatrao Ahirao, Depashri Vikas Ahirao, legal representative, Nitin Sharadchandra Pradhan
  • Publication number: 20120100188
    Abstract: 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: Application
    Filed: May 25, 2010
    Publication date: April 26, 2012
    Applicant: Actavis Group PTC ehf
    Inventors: Girish Dixit, Anil Shahaji Khile, Vignesh Nair, Nitin Sharadechandra Pradhan
  • Patent number: 8101769
    Abstract: 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: Grant
    Filed: February 14, 2008
    Date of Patent: January 24, 2012
    Assignee: Actavis Group PTC EHF
    Inventors: Venkata Sasidhar Balla, Madhubabu Alapharthi, Nitin Sharadchandra Pradhan, Jon Valgeirsson
  • Patent number: 8101597
    Abstract: 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: Grant
    Filed: May 7, 2008
    Date of Patent: January 24, 2012
    Assignee: Actavis Group PTC EHF
    Inventors: Girish Dixit, Anil Shahaji Khile, Jayesh Laljibhai Patel, Nitin Sharadchandra Pradhan, Jon Valgeirsson
  • Patent number: 8071767
    Abstract: 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: Grant
    Filed: January 8, 2008
    Date of Patent: December 6, 2011
    Assignee: Actavis Group PTC EHF
    Inventors: Uday Rajaram Bapat, Munusamy Jayamani, Sivaji Ravisaravanan, Vigneshwara Ravisankar
  • Patent number: 7947699
    Abstract: 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: Grant
    Filed: January 9, 2009
    Date of Patent: May 24, 2011
    Assignee: Actavis Group PTC EHF
    Inventors: Mayur Devjibhai Khunt, Nilesh Sudhir Patil, Haushabhau Shivaji Pagire, Nitin Sharadchandra Pradhan, Jon Valgeirsson
  • Publication number: 20090181977
    Abstract: 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: Application
    Filed: January 9, 2009
    Publication date: July 16, 2009
    Applicant: Actavis Group PTC ehf
    Inventors: Mayur Devjibhai Khunt, Nilesh Sudhir Patil, Haushabhau Shivaji Pagire, Nitin Sharadchandra Pradhan, Jon Valgeirsson