Patents by Inventor Hans H. Wuest

Hans H. Wuest 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).

  • Diaryl-substituted heterocyclic compounds, drugs and cosmetics obtained therefrom
    Patent number: 5061705
    Abstract: Compounds of formula I ##STR1## wherein R.sup.1 and R.sup.2 are each hydrogen or methyl, A is an ethylene or methylene radical which is unsubstituted or substituted by methyl, hydroxyl or oxo, L is a saturated or unsaturated five-membered or six-membered heterocyclic structure which is unsubstituted or substituted by hydroxyl, mercapto, C.sub.1 -C.sub.6 -alkyl, or C.sub.1 -C.sub.4 -alkanoyl and has from 1 to 3 heteroatoms from the group consisting of N, O and S, the second and third heteroatoms being a nitrogen atom,R.sup.3 is hydrogen, a hydroxy or C.sub.1 -C.sub.6 -alkoxy group,R.sup.4 is hydrogen, C.sub.1 -C.sub.4 -alkyl, halogen or methoxy,R.sup.5 is hydrogen or methoxy or tert-butyl,R.sup.6 is hydrogen, methyl, nitrile or a C.sub.2 -C.sub.10 -ketal group or the radical --CHR.sup.7 OR.sup.8 --CHR.sup.7 --NR.sup.9 R.sup.10, --COR.sup.11, --SR.sup.12, ##STR2## in which R.sup.7 is hydrogen or C.sub.1 -C.sub.4 -alkyl,R.sup.8 is hydrogen, C.sub.1 -C.sub.4 -alkyl or C.sub.1 -C.sub.
    Type: Grant
    Filed: February 8, 1990
    Date of Patent: October 29, 1991
    Assignee: BASF Aktiengesellschaft
    Inventors: Hans H. Wuest, Bernd Janssen, William V. Murray, Michael P. Wachter, Stanley Bell