Patents Assigned to Divi's Laboratories Limited
  • Novel polymorph of Quetiapine fumarate and a process for its preparation
    Publication number: 20060223994
    Abstract: The present invention relates to a novel polymorph of Quetiapine fumarate and a simple method for its preparation.
    Type: Application
    Filed: November 8, 2005
    Publication date: October 5, 2006
    Applicant: Divi's Laboratories Limited
    Inventors: Mysore Aswatha Rao, Srinivasan Kuduva, Mellekatte Shreenivas
  • Process for the resolution of racemic (R,S) -5-(2-(2-(2- ethoxyphenoxy) ethylamino)propyl)-2-methoxybenzene sulfonamide (tamsulosin), its novel R and S isomers and their salts and processes for their preparation
    Publication number: 20060079714
    Abstract: An improved process is described to resolve a racemic mixture in any proportion of 5-(2-(2-(2-ethoxyphenoxy)ethylamino)propyl)-2-methoxy benzene sulfonamide as a free base or some of its salts, with BPA either S or R form to obtain enantiomerically highly pure R and S-isomer as a well characterized free base or as a salt of the title compound. Also described are novel R and S-isomers of 5-(2-(2-(2-ethoxyphenoxy) ethylamino)propyl)-2-methoxy benzene sulfonamide and their salts and the processes for their preparation.
    Type: Application
    Filed: May 24, 2005
    Publication date: April 13, 2006
    Applicant: DIVI'S LABORATORIES LIMITED
    Inventors: Bolineni Nageswara Rao, Mutyala Rao, Allupati Patro, Ambadipudi Udayalakshmi, Mutyala Veeraiah, Gundu Padakandala