| 摘要 |
The invention relates to compounds of formula (I): R0 signifies a C1 to C4 alkyl group, R1 signifies CN or CONH2, R2 signifies a secondary or tertiary amino group, R3 signifies a secondary or tertiary amino group, BR is a bridge of the formula -A-B-A- wherein A is substituted phenyl or substituted naphthyl or unsubstituted phenyl or unsubstituted naphthyl, and B is a bivalent group of the formula -SO2-, -CONH-, -HNCO-, -SO2NH- or -HNSO2-, with the proviso that the compounds of formula (I) bear at least one anionic substituent. |
