Patents by Inventor Nayan SHIVALKAR

Nayan SHIVALKAR 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).

  • Efficient process for separation of diastereomers of 9-[(R)-2-[[(R,S)-[[(S)-1-(isopropoxycarbonyl)ethyl]amino]-phenoxyphosphinyl]methoxy]propyl]adenine
    Patent number: 9676803
    Abstract: The present invention relates to an efficient process for the separation of diastereomers of 9-[(R)-2-[[(R,S)-[[(S)-1-(Isopropoxycarbonyl)ethyl]amino]-phenoxyphosphinyl]methoxy]propyl]adenine and to a process for preparing 9-[(R)-2-[[(R)-[[(S)-1-(Isopropoxycarbonyl)ethyl]amino]phenoxyphosphinyl]methoxy]propyl]adenine and 9-[(R)-2-[[(S)-[[(S)-1-(Isopropoxycarbonyl)ethyl]amino]phenoxyphosphinyl]methoxy]propyl]adenine.
    Type: Grant
    Filed: June 6, 2014
    Date of Patent: June 13, 2017
    Assignee: Cipla Limited
    Inventors: Dharmaraj Ramachandra Rao, Ashwini Amol Sawant, Nayan Shivalkar, Nitin Thakur
  • AN EFFICIENT PROCESS FOR SEPARATION OF DIASTEREOMERS OF 9-[(R)-2-[[(R,S)-[[(S)-1-(ISOPROPOXYCARBONYL)ETHYL]AMINO]-PHENOXYPHOSPHINYL] METHOXY]PROPYL]ADENINE
    Publication number: 20160122373
    Abstract: The present invention relates to an efficient process for the separation of diastereomers of 9-[(R)-2-[[(R,S)-[[(S)-1-(Isopropoxycarbonyl)ethyl]amino]-phenoxyphosphinyl]methoxy]propyl]adenine and to a process for preparing 9-[(R)-2-[[(R)-[[(S)-1-(Isopropoxycarbonyl)ethyl]amino]phenoxyphosphinyl]methoxy]propyl]adenine and 9-[(R)-2-[[(S)-[[(S)-1-(Isopropoxycarbonyl)ethyl]amino]phenoxyphosphinyl]methoxy]propyl]adenine.
    Type: Application
    Filed: June 6, 2014
    Publication date: May 5, 2016
    Inventors: Dharmaraj Ramachandra RAO, Ashwini Amol SAWANT, Nayan SHIVALKAR, Nitin THAKUR