Patents by Inventor Swargam Sathyanarayan

Swargam Sathyanarayan 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 manufacture of 8-chloro-6-(2-flourophenyl)-1-methyl-4H-imidazo?1,5A!?1,4!benzodiazepine (midazolam)
    Patent number: 5792874
    Abstract: A multistep process for producing 8-chloro-6-(2-fluorophenyl)-1-methyl-4-H-imidazo?1,5a!?1,4!benzodiazepine (midazolam) comprises treating a compound of Formula II with a lower alkyl dithiol to produce a compound of Formula III, wherein n=2 or 3, converting the compound of Formula III to a compound of Formula VII, and then treating the compound of Formula VII with a deprotecting agent, thereby producing midazolam. Novel intermediate compounds are also disclosed.
    Type: Grant
    Filed: August 26, 1997
    Date of Patent: August 11, 1998
    Assignee: Ranbaxy Laboratories, Ltd.
    Inventors: Jag Mohan Khanna, Naresh Kumar, Chandrahas Khanduri, Mukesh Kumar Sharma, Pankaj Sharma, Swargam Sathyanarayan, Girij Pal Singh
  • Process for the manufacture of 8-chloro-6 (2-fluorophenyl)-1 methyl-4H-imidazo ?1,5a! ?1,4! benzodiazepine (midazolam)
    Patent number: 5756729
    Abstract: A multistep process for producing 8-chloro-6-(2-fluorophenyl)-1-methyl-4-H-imidazo?1,5a!?1,4! benzodiazepine (midazolam) comprises treating a compound of Formula II with a lower alkyl dithiol to produce a compound of Formula III, wherein n=2 or 3, converting the compound of Formula III to a compound of Formula VII, and then treating the compound of Formula VII with a deprotecting agent, thereby producing midazolam. Novel intermediate compounds are also disclosed.
    Type: Grant
    Filed: October 9, 1996
    Date of Patent: May 26, 1998
    Assignee: Ranbaxy Laboratories, Ltd.
    Inventors: Jag Mohan Khanna, Naresh Kumar, Chandrahas Khanduri, Mukesh Kumar Sharma, Pankaj Sharma, Swargam Sathyanarayan, Girij Pal Singh