Patents by Inventor Lydia Peer

Lydia Peer 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).

  • Patent number: 4658060
    Abstract: There is disclosed a multistep process for producing (-)-5-[(R)-1-hydroxy-2-((R)-1-methyl-3-phenyl-propyl)aminoethyl]salicylami de in high yields which does not require chromatography.The process is stereoselective for the desired products starting with the reaction of D-(+)-alpha-methylbenzylamine with benzylacetone followed by reduction of the resulting Schiff's base to form an amine as an R,R: R,S diastereomeric mixture, resolution of the mixture to obtain the R,R stereoisomer as a salt, conversion to a free base, reaction of the R,R free base with an O-protected alpha-bromo-3-carbamoyl-acetophenone to produce the corresponding R,R-ketobenzamide, reduction to produce a mixture of S,R,R;R,R,R hydroxybenzamide, removal of the protecting groups, resolution of the deprotected product and then conversion to the free R,R-amine.
    Type: Grant
    Filed: April 26, 1982
    Date of Patent: April 14, 1987
    Assignee: Schering Corporation
    Inventors: Elijah J. Gold, Esther Babad, Lydia Peer, Wei K. Chang
  • Patent number: 4312996
    Abstract: A compound of the formula ##STR1## wherein X and Y are independently selected from hydrogen, halogen, trifluoromethyl, nitro, C.sub.1 to C.sub.6 alkyl and C.sub.1 to C.sub.6 alkoxy, and Z is C.sub.1 to C.sub.6 alkyl or hydrogen is disclosed.
    Type: Grant
    Filed: December 29, 1980
    Date of Patent: January 26, 1982
    Assignee: Schering Corporation
    Inventors: Joseph Mayer, Lydia Peer, Esther Babad
  • Patent number: 4302599
    Abstract: This invention describes a novel process whereby meta-substituted anilides are nitrated in the para position in high yields.
    Type: Grant
    Filed: September 10, 1979
    Date of Patent: November 24, 1981
    Assignee: Schering Corporation
    Inventors: Lydia Peer, Joseph Mayer