Patent ID: 6723846
Filing Date: 2004-04-20
Classification: C07D,Y10S

Abstract:
A compound having the formula: wherein eachR1 represents, independently, a 2-methoxyethylamino group or an amino acid group from which a hydrogen atom on the amino group has been removed; each R2 represents, independently, methylene, ethylene or propylene residue which is substituted by hydroxy, C1-C4-alkyl, C1-C4-hydroxy- or alkoxy-alkoxy, â€”OCOM, â€”OCOC1-C4-alkyl, â€”CO2M, â€”CO2C1-C4-alkyl SO3M or phenoxy which is unsubstituted or substituted by halogen, C1-C4-alkyl or C1-C4-alkoxy, â€”CO2M or â€”CO2C1-C4-alkyl NH2 or mono- or disubstituted amino; or phenyl which is unsubstituted or substituted by 1 to 3 â€”SO3M, â€”SO2NHC1-C4-alkyl, â€”SO2NH2, â€”CO2M, â€”CO2C1-C4-alkyl, â€”CONH2, â€”CONHC1-C4-alkyl, â€”NHCOC1-C4-alkyl or mono- or disubstituted amino groups; each R3 represents, independently, hydrogen, C1-C4-alkyl, halogen, cyano, â€”SO2M, â€”SO2NH2, SO2NHC1-C4-alkyl, â€”CO2M, â€”CO2C1-C4-alkyl, â€”CONH2, â€”CONHC1-C4-alkyl, or â€”NHCOC1-C4-alkyl; M is hydrogen, an alkali metal atom, ammonium or a cation formed from an amine and m is an integer of 1 to 3.