Patents by Inventor Sandeep P. Modi

Sandeep P. Modi 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 large-scale production of indolyl alkyl pyrimidinyl piperazine compounds
    Patent number: 5550239
    Abstract: An improved, novel convergent process suitable for large scale preparation of the antimigraine agent 4-(5-methoxy-4-pyrimidinyl)-1-[3-[5-[[(methylamino)sulfonyl]methyl]-1H-ind ol-3-yl]propyl]piperazine (BMS 180048) and close analogs. The improved process provides efficiencies in handling, purification, and product yield and involves a novel heteroannulation reaction that provides the indole ring moiety and propylpiperazinyl-pyrimidine backbone in a single step.
    Type: Grant
    Filed: November 8, 1994
    Date of Patent: August 27, 1996
    Assignee: Bristol-Myers Squibb Company
    Inventors: Michael J. Humora, Sandeep P. Modi, Sushi K. Srivastava, Andrew D. Williams