Patents Assigned to Avra Laboratories Pvt. Ltd
  • Process for synthesis of lenalidomide
    Patent number: 10392364
    Abstract: Disclosed herein is an improved process for preparation of Lenalidomide and crystalline polymorphic forms thereof.
    Type: Grant
    Filed: August 11, 2015
    Date of Patent: August 27, 2019
    Assignee: AVRA LABORATORIES PVT. LTD.
    Inventors: Ramakrishna Rao, Ramadevi Nandipati, Ravi Gooda, Mukesh Padmakar Shewalkar, Venkat Vasantrao Bhadke
  • Method of synthesizing key intermediates for the production of camptothecin derivatives
    Patent number: 7608740
    Abstract: The present invention discloses a process for efficient production of 2-amino-5-hydroxypropiophenone corresponding to the AB ring part of camptothecin (CPT) skeleton, which is a key intermediate useful for the total synthesis of camptothecin analogs including 7-Ethyl-10-hydroxy camptothecin and novel intermediates thereof.
    Type: Grant
    Filed: September 27, 2005
    Date of Patent: October 27, 2009
    Assignee: Avra Laboratories Pvt. Ltd
    Inventors: Ramakrishna Rao, Venkata Rama Rao Alla