Patents by Inventor Jael Lexmer

Jael Lexmer 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 preparing substituted benzoyl cyanide amidinohydrazones
    Patent number: 6329521
    Abstract: The present invention provides a process for preparing a compound of the general formula (I): wherein R1 to R5 are independently selected from hydrogen, halogen, C1-6 alkyl, C2-6 alkenyl, C2-6 alkynyl or C1-6 alkoxy, all optionally substituted by one or more of halogen, hydroxy and aryl groups, as well as being independently selected from amino, mono- or disubstituted amino, alkenyloxy, acyl, acyloxy, cyano, nitro, aryl and alkylthio groups, which process comprises reacting a compound of the general formula (II): wherein R1 to R5 are as defined in formula (I), with aminoguanidine bicarbonate in a mixture of a water-soluble solvent and polyphosphoric acid.
    Type: Grant
    Filed: February 22, 2001
    Date of Patent: December 11, 2001
    Assignee: Chemagis, Ltd.
    Inventors: Vladimir Nadaka, Jael Lexmer, Joseph Kaspi
  • Process for preparing substituted benzoyl cyanide amidinohydrazones
    Publication number: 20010025118
    Abstract: The present invention provides a process for preparing a compound of the general formula (I): 1
    Type: Application
    Filed: February 22, 2001
    Publication date: September 27, 2001
    Inventors: Vladimir Nadaka, Jael Lexmer, Joseph Kaspi