Appeal No. 2003-1308
Application No. 09/287,176
wherein, in said formula (II):
R6 is chosen from a hydrogen atom and a C1-C4 alkyl radical;
R7 is chosen from a hydrogen atom, an alkyl radical which is
unsubstituted or substituted with a -CN radical or with an amino
group, and a 4'-aminophenyl radical, or R7 forms, with R6, a
heterocycle containing at least one heteroatom chosen from oxygen
and nitrogen and which is unsubstituted or substituted with a
C1-C4 alkyl radical;
R8 and R9 are identical or different and are chosen from a
hydrogen atom, a halogen atom, a C1-C4 alkyl radical, a C1-C4
alkoxy radical, and a -CN radical;
X- is an anion;
B is a group chosen from structures B1 to B6 below:
-5-
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