Patents by Inventor Francisco Sanchez Alvarez

Francisco Sanchez Alvarez 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).

  • 2-(5'-Halo-6'-methoxynaphth-2'-yl)-acrylic acid
    Patent number: 3994968
    Abstract: New compounds, 2-(6'-methoxynaphth-2'-yl)-propylene oxide, 2-(6'-methoxynaphth-2'-yl)proppionaldoxime, 2-hydroxy-2-(6'-methoxynaphth-2'-yl)-propionitrile, 2-(6'-methoxynaphth-2'-yl)acrylonitrile, 2-(6'-methoxynaphth-2'-yl)acrylic acid, the corresponding 5'-halo compounds and 2-(5'-halo-6'-methoxynaphth-2'-yl)propionaldehyde are useful intermediates in producing 2-(6'-methoxynaphth-2'-yl)propionic acid and the corresponding 5'-halo acids from 6-methoxy-2-acetylnaphthalene and the corresponding 5-halo compounds. The 2-propionic acids are anti-inflammatory, analgesic, anti-pyretic and anti-pruritic agents. The 2-propionaldehydes, obtained from the 2-acetyl compounds by way of the 2-propylene oxide, can be converted directly to the 2-propionic acids by way of the 2-propionaldoximes and the 2-priopionitriles or more directly by Jones oxidation.
    Type: Grant
    Filed: January 12, 1976
    Date of Patent: November 30, 1976
    Assignee: Syntex Corporation
    Inventor: Francisco Sanchez Alvarez
  • 2-(6'-methoxynaphth-2'yl) propionaldoxime and 5'-halo derivatives thereof
    Patent number: 3960957
    Abstract: New compounds, 2-(6'-methoxynaphth-2'-yl)propylene oxide, 2-(6'-methoxynaphth-2'-yl)propionaldoxime, 2-hydroxy-2-(6'-methoxynaphth-2'-yl)-propionitrile, 2-(6'methoxynaphth-2'-yl)acrylonitrile, 2-(6'-methoxynaphth-2'-yl)acrylic acid, the corresponding 5'-halo compounds and 2-(5'-halo-6'-methoxynaphth-2'-yl)propionaldehyde are useful intermediates in producing 2-(6'-methoxynaphth-2'-yl)propionic acid and the corresponding 5'-halo acids from 6-methoxy-2-acetylnaphthalene and the corresponding 5-halo compounds. The 2-propionic acids are anti-inflammatory, analgesic, anti-pyretic and anti-pruritic agents. The 2-propionaldehydes, obtained from the 2-acetyl compounds by way of the 2-propylene oxide, can be converted directly to the 2-propionic acids by way of the 2-propionaldoximes and the 2-propionitriles or more directly by Jones oxidation.
    Type: Grant
    Filed: January 10, 1975
    Date of Patent: June 1, 1976
    Assignee: Syntex Corporation
    Inventor: Francisco Sanchez Alvarez