Patents by Inventor Jwalant Ashesh Shastri

Jwalant Ashesh Shastri 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 Producing Pure Form of 2-Methyl-4-(4-Methyl-1-Piperazinyl)-10H-Thieno[2,3-b] [1,5]Benzodiazepine
    Publication number: 20090005556
    Abstract: Disclosed is a process for producing pure form of 2-methyl-4-(4-methyl-1-piperazinyl)-10H-thieno[2,3-b][1,5] benzodiazepine. The process comprises of reacting 2-(2-aminoanilino)-5-methylthiophene-3-carbonitrile with N-methyl piperazine in conjunction with N-methylpiperazine acid salt, to produce 2-methyl-4-(4-methyl-1-piperazinyl)-10H-thieno[2,3-b][1,5] benzodiazepine. Also disclosed is a process for obtaining the Polymorphic Form I of 2-methyl-4-(4-methyl-1-piperazinyl)-10H-thieno[2,3-b][1,5] benzodiazepine by crystallizing the crude 2-methyl-4-(4-methyl-1-piperazinyl)-10H-thieno[2,3-b][1,5] benzodiazepine in a mixture of solvents.
    Type: Application
    Filed: July 14, 2004
    Publication date: January 1, 2009
    Inventors: Jwalant Ashesh Shastri, Akshat Bhatnagar, Rajesh Kumar Thaper, Sushil Kumar Dubey