Patent number: 5003081
Abstract: Pyrrole derivatives of the formula ##STR1## or the tautomers thereof, where R.sup.1 is hydrogen, alkyl, alkenyl, alkynyl, cycloalkyl, phenyl, hetaryl or amino, it being possible for these radicals to be substituted,R.sup.2 is hydrogen, alkyl, benzyl, alkenyl, cycloalkyl or phenylR.sup.3 is hydrogen, alkyl, benzyl or alkenyl, or R.sup.2 and R.sup.3 together are ##STR2## where T.sup.1, T.sup.2 and T.sup.3 have the meanings mentioned in the description, or R.sup.2 and R.sup.3 together with the nitrogen connecting them are a heterocyclic radical,R.sup.4 is cyano, or carbamoyl or thiocarbamoyl, each of which can be substituted, or --C(NH.sub.2).dbd.N--OH,R.sup.5 is halogen, hydroxyl, alkanoyloxy or benzoyloxy andR.sup.6 is hydrogen, alkyl, phenyl, cyano, halogen, nitro, hydroxysulfonyl, alkanoyl, benzoyl or ##STR3## where T.sup.4 is alkyl or phenyl and T.sup.5 is the radical of an active methylene compound, hydroxyimino or the radical of a primary amine,with the proviso that R.sup.1, R.sup.2 and R.sup.
Type:
Grant
Filed:
January 8, 1990
Date of Patent:
March 26, 1991
Assignee:
BASF Aktiengesellschaft
Inventors:
Juergen Pfister, Matthias Wiesenfeldt, Karl-Heinz Etzbach