Patents Assigned to Genesen Labs
  • Meropenem intermediate in novel crystalline form and a method of manufacture of meropenem
    Patent number: 8097719
    Abstract: The present invention relates to novel crystalline form of (4-Nitrobenzyl (4R,5S,6S)-(3-{(3S,5S)-5-[(dimethylamino)carbonyl]-1-[(4-nitrophenoxy)carbonxyl]pyrrolidin-3-yl}thio-6-[(1R)-1-hydorxyehtyl]-4-methyl-7-oxo-1-azabicyclo[3.2.0].hept-2-ene-2-carboxylate) of compound Formula I as well as an improved process for the preparation of meropenem trihydrate of compound Formula II wherein, PNB represent P-nitro benzyl group and PNZ represent P-nitrobenzyloxycarbonyl group.
    Type: Grant
    Filed: October 22, 2008
    Date of Patent: January 17, 2012
    Assignee: Genesen Labs
    Inventors: Ashwin A. Khemka, Pravin B. Shejul, Amol V. Vyavahare, Dhirendra Kumar Pandey, Sachin N. Shete, Hanumant K. Jadhav, Nitn H. Kadam