Patents Assigned to Virdev Intermediates PVT. Ltd.
  • Process for cyclooxygenase-2 selective inhibitor
    Patent number: 8841457
    Abstract: The present invention describes a process for preparing a cyclooxygenase-2 selective inhibitor. It provides a synthetic procedure for the said substance namely 5-chloro-3-(4-methylsulphonyl)phenyl-2-(2-methyl-5-pyridinyl)pyridine of formula (I). The invention also relates to preparation of a new intermediate of formula (IV) and a process to prepare it. Furthermore, the invention describes a process for preparing another key intermediate of formula (II). Compounds of formula (IV) and formula (II) are useful intermediates in synthesis of the said cyclooxygenase-2 inhibitor.
    Type: Grant
    Filed: November 15, 2011
    Date of Patent: September 23, 2014
    Assignee: Virdev Intermediates Pvt. Ltd.
    Inventors: Dharmesh Mahendra Shah, Sanjay Amratlal Solanki, Viral Narendra Jariwala, Ashok Vasantray Vyas, Ashokkumar Bhikhubhai Mistry
  • PROCESS FOR CYCLOOXYGENASE-2 SELECTIVE INHIBITOR
    Publication number: 20130245272
    Abstract: The present invention describes a process for preparing a cyclooxygenase-2 selective inhibitor. It provides a synthetic procedure for the said substance namely 5-chloro-3-(4-methylsulphonyl)phenyl-2-(2-methyl-5-pyridinyl)pyridine of formula (I). The invention also relates to preparation of a new intermediate of formula (IV) and a process to prepare it. Furthermore, the invention describes a process for preparing another key intermediate of formula (II). Compounds of formula (IV) and formula (II) are useful intermediates in synthesis of the said cyclooxygenase-2 inhibitor.
    Type: Application
    Filed: November 15, 2011
    Publication date: September 19, 2013
    Applicant: Virdev Intermediates PVT. Ltd.
    Inventors: Dharmesh Mahendra Shah, Sanjay Amratlal Solanki, Viral Narendra Jariwala, Ashok Vasantray Vyas, Ashokkumar Bhikhubhai Mistry