Patents by Inventor Heikki E. Nupponen

Heikki E. Nupponen 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).

  • 1-(4'-alkylamido)-2 '{1[n-(alkyl)imino]-ethyl}-phenoxy-3-alkylamino-2-propanols and use thereof
    Patent number: 4579970
    Abstract: The present invention concerns new (R)-, (S)- and (R,S)-1-(4'-alkylamido)-2'-{1-[N-(alkyl)imino]ethyl}phenoxy-3-alklyamino-2 -propanols having the general formula ##STR1## wherein R means a straight or branched C.sub.1 -C.sub.4 -alkyl group, especially the n-propyl group, and R.sub.1 means hydrogen or a straight or branched C.sub.1 -C.sub.4 -alkyl group, especially the isopropyl group, which compounds are useful intermediates when preparing the pharmacologically active (R)-, (S)- and (R,S)-1-(4'-alkylamido-2'-acetyl)phenoxy-3-alkylamino-2-propanols of the formula ##STR2## wherein R and R.sub.1 have the meaning given above.
    Type: Grant
    Filed: June 19, 1984
    Date of Patent: April 1, 1986
    Assignee: Oy Star AB
    Inventors: Lauri A. Hietaniemi, Heikki E. Nupponen
  • Method of preparing furocoumarins
    Patent number: 4169840
    Abstract: This invention relates to an improved method of preparing furocoumarins having the following formula: ##STR1## wherein R is a radical selected from the group consisting of hydrogen, hydroxy and lower alkoxy, which comprises reacting a coumarin having the following formula: ##STR2## or the alkali metal salt thereof, with a haloacetal having the following formula: ##STR3## WHEREIN R.sub.
    Type: Grant
    Filed: November 14, 1977
    Date of Patent: October 2, 1979
    Assignee: Oy Star AB
    Inventors: Juhani I. T. Maki, Pentti J. Malkonen, Heikki E. Nupponen