Patents by Inventor Manoj Kunjabihari Agrawal

Manoj Kunjabihari Agrawal has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • PROCESS FOR THE PREPARATION OF LEDIPASVIR AND INTERMEDIATES THEREOF
    Publication number: 20190062332
    Abstract: The present invention relates to process for preparation of ledipasvir of formula 1 and its novel intermediates. The process involves reaction of compound of formula 2 with compound of formula 3 to yield a compound of formula 4, deprotection of compound of formula 4 to yield compound of formula 5 and conversion of compound of formula 5 to Ledipasvir wherein PG is an amine protecting group provided that amino protecting group is not carbomethyloxy (—COOCH3) group; X and Y are leaving groups.
    Type: Application
    Filed: January 28, 2017
    Publication date: February 28, 2019
    Inventors: Swapnil Sudhakar Deshmukh, Manoj Kunjabihari Agrawal, Adinath Murlidhar Jain, Himanshu Madhav Godbole, Girij Pal Singh