Patent number: 6369069
Abstract: The invention relates to compounds of the formula (I),
in which the symbols have the following meaning:
R(1) is
1. alkyl having 1, 2, 3, 4, 5, 6, 7 or 8 carbon atoms;
2. alkyl having 1, 2, 3, 4, 5, 6, 7 or 8 carbon atoms, in which one to all hydrogen atoms are replaced by fluorine;
3. alkenyl having 2, 3, 4, 5, 6, 7, 8, 9, 10, 11 or 12 carbon atoms; or
4. —CnH2n−nn—Y,
nn is zero or 2; and
n is zero, 1, 2, 3 or 4; where n is unequal to zero or 1 if nn is equal to 2;
5. —CnH2n−nn—Y,
nn is zero or 2; and
n is 1, 2, 3 or 4; where n is unequal to 1 if nn is equal to 2.
Type:
Grant
Filed:
August 4, 2000
Date of Patent:
April 9, 2002
Assignee:
Aventis Pharma Deutschland GmbH
Inventors:
Heinz-Werner Kleemann, Hans-Jochen Lang, Jan-Robert Schwark, Andreas Weichert, Sabine Faber, Hans-Willi Jansen, Stefan Petry