| abstract |
The present invention relates to novel diazepine salts of the general formula (Ia), (Ib) in which A and B are, independently, a hydrogen gelling agent or a naphthylidene substituent selected from the group consisting of 1-6 carbon atoms, C1-6 alkyl. C 1-4 alkoxy, aryl, aryloxy, silyl and / or silyl oxy, R 1 is phenyl, C 1-6 alkyl, phenyl (C 1-6 alkyl), or (a) R2 is C1-6 alkyl, phenyl or benzyl, R3 is hydrogen or -OR4, of which R4 is C1-6 alkyl or C1-6 alkylsilyl, and n is 0, or 2; ŕ |