Patents by Inventor Stephen Alan Wald

Stephen Alan Wald 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).

  • 2R,4S-hydroxyitraconazole isomers
    Patent number: 6147077
    Abstract: A method of treating fungal infections with a mixture of isomers of 2R,4S-hydroxyitraconazole and their sulfate and phosphate derivatives is disclosed. Pharmaceutical compositions containing these compounds are also disclosed.
    Type: Grant
    Filed: April 29, 1999
    Date of Patent: November 14, 2000
    Assignee: Sepracor Inc.
    Inventors: Patrick Koch, Richard F. Rossi, Jr., Chris Hugh Senanayake, Stephen Alan Wald
  • Asymmetric grignard synthesis with cyclic 1,2 aminoalcohols
    Patent number: 6025177
    Abstract: Processes for preparing a single enantiomer of an .alpha.,.alpha.-disubstituted-.alpha.-hydroxy acetic acid, especially cyclohexylphenylglycolic acid (CHPGA), is disclosed. The processes employ cyclic 1,2-aminoalcohols as chiral auxiliaries by forming diastereomeric esters of aminoalcohols or diastereomeric amides of oxazolidines. ##STR1## Intermediates useful in the process are also disclosed.
    Type: Grant
    Filed: February 9, 1999
    Date of Patent: February 15, 2000
    Assignee: Sepracor Inc.
    Inventors: Chris Hugh Senanayake, Roger P. Bakale, Qun Kevin Fang, Paul Timothy Grover, Donald L. Heefner, Richard F. Rossi, Stephen Alan Wald
  • Asymmetric grignard synthesis with cyclic 1,2 aminoalcohols
    Patent number: 6013830
    Abstract: Processes for preparing a single enantiomer of an .alpha.,.alpha.-disubstituted-.alpha.-hydroxy acetic acid, especially cyclohexylphenylglycolic acid (CHPGA), is disclosed. The processes employ cyclic 1,2-aminoalcohols as chiral auxiliaries by forming diastereomeric esters of aminoalcohols or diastereomeric amides of oxazolidines. ##STR1## Intermediates useful in the process are also disclosed.
    Type: Grant
    Filed: March 30, 1998
    Date of Patent: January 11, 2000
    Assignee: Sepracor Inc.
    Inventors: Chris Hugh Senanayake, Roger P. Bakale, Qun Kevin Fang, Paul Timothy Grover, Donald L. Heefner, Richard F. Rossi, Stephen Alan Wald