Patents Represented by Attorney Scios Inc.

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  • Process for the preparation of pyridopyrimidones
    Patent number: 7119199
    Abstract: The present invention is directed to a method for producing a pyridopyrimidone of the formula wherein X is N or CH and R is an aryl, heteroaryl or alkyl group, said method comprising the step of reacting an acid derivative of the formula: wherein X is N or CH; Y is an appropriate leaving group; Z is a halogen, OR1, NHR1, or SR1; and R1 is a lower alkyl; and the amidine derivative is wherein R is an aryl, heteroaryl or alkyl group.
    Type: Grant
    Filed: December 31, 2004
    Date of Patent: October 10, 2006
    Assignee: Scios INC
    Inventors: Sarvajit Chakravarty, Sundeep Dugar, Richland Tester, Aurelia Conte