Patent ID: 6680345
Filing Date: 2004-01-20
Classification: C07C

Abstract:
A compound of Formula 1: whereinR1 and R2 which may be identical or different, denote hydrogen, C1-C4-alkyl, C1-C4-alkoxy, halogen, COOH, OH, â€”COOC1-C4-alkyl, â€”CO-C1-C4-alkyl, â€”NH2, â€”NH(C1-C4-alkyl), â€”N(C1-C4-alkyl)2, â€”SO2â€”OH, â€”CF3 or phenyl; and R3 denotes hydrogen, C1-C4-alkyl, C1-C4-alkoxy, halogen, â€”CF3 or phenyl, wherein the phenyl ring may optionally be mono-, di- or trisubstituted by one, two or three groups selected from C1-C4-alkyl, C1-C4-alkoxy, halogen and â€”CF3, â€ƒwith the proviso that the groups R1, R2 and R3 may not all simultaneously represent hydrogen, or an enantiomer, mixture of enantiomers or a racemate thereof.