Patents Assigned to Ciba Specialty Corporation
  • Synthesis of amines and intermediates for the synthesis thereof
    Patent number: 7645886
    Abstract: The invention relates in a first embodiment to a method for the manufacture of esters of the formula (I), or especially of amides of the formula (II), wherein the symbols have the meanings given in the specification, as well as other intermediates and compounds useful in the synthesis of tryptamines and other substances mentioned in the title. The synthesis methods and intermediates are useful in the synthesis of pharmaceuticals.
    Type: Grant
    Filed: December 12, 2003
    Date of Patent: January 12, 2010
    Assignee: Ciba Specialty Corporation
    Inventors: Ulrich Berens, Oliver Dosenbach, Daniel Sprenger