Patents by Inventor D. Metkar Shashikant

D. Metkar Shashikant 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).

  • Method for preparing silodosin
    Patent number: 9938239
    Abstract: The present invention relates to a process for preparing silodosin with high optical purity up to 99.9% enantiomeric excess (e.e.) or above. The process makes use of a method step, in which the enantiomers contained in a racemic mixture of a compound represented by the general formula V: wherein * denotes the asymmetric center, R1 is a protecting group, and R2 is cyano or carbamoyl, are separated.
    Type: Grant
    Filed: December 21, 2015
    Date of Patent: April 10, 2018
    Assignee: Sandoz AG
    Inventors: Parven Kumar Luthra, Sachin Bhuta, Chandrakant Abhinay, N. Chaven Dattatraya, D. Metkar Shashikant
  • Method For Preparing Silodosin
    Publication number: 20160176818
    Abstract: The present invention relates to a process for preparing silodosin with high optical purity up to 99.9% enantiomeric excess (e.e.) or above. The process makes use of a method step, in which the enantiomers contained in a racemic mixture of a compound represented by the general formula V: wherein * denotes the asymmetric center, R1 is a protecting group, and R2 is cyano or carbamoyl, are separated.
    Type: Application
    Filed: December 21, 2015
    Publication date: June 23, 2016
    Applicant: Sandoz AG
    Inventors: Parven Kumar Luthra, Sachin Bhuta, Chandrakant Abhinay, N. Chaven Dattatraya, D. Metkar Shashikant
  • METHOD FOR PREPARING SILODOSIN
    Publication number: 20150038727
    Abstract: The present invention relates to a process for preparing silodosin with high optical purity up to 99.9% enantiomeric excess (e.e.) or above. The process makes use of a method step, in which the enantiomers contained in a racemic mixture of a compound represented by the general formula V: wherein * denotes the asymmetric center, R1 is a protecting group, and R2 is cyano or carbamoyl, are separated.
    Type: Application
    Filed: October 19, 2012
    Publication date: February 5, 2015
    Applicant: SANDOZ AG
    Inventors: Parven Kumar Luthra, Sachin Bhuta, Chandrakant Pise Abhinay, N. Chavan Dattatraya, D. Metkar Shashikant