Triphendioxazine compounds

US5565563A · kind A · utility

Assignee

• Sandoz AG · CH

Inventors

• Bansi Lal Kaul · Biel-Benken, CH
• Peter Kempter · Bad Soden, DE

Key dates

• Filing date: Dec 2, 1994
• Grant date: Oct 15, 1996
• Expiry date: Dec 2, 2014

Classification

• Technology area (CPC C): Chemistry; Metallurgy
• CPC primary: C09B19/02
• WIPO field: Basic materials chemistry
• WIPO sector: Chemistry

Abstract

Triphendioxazine compounds of formula I, ##STR1## in which R.sub.1 and R.sub.2 are either both hydrogen or form a single chain linking the 8,9-; 9,10- or 10,11-positions, the single chain having the formula --NR.sub.5 ---(CO).sub.m --NH--, --CR.sub.5 .dbd.CH--CO--NH--, --CO--CH.sub.2 --CO--NH--, --CO--CH.dbd.CR.sub.5 --NH--, --CO--NH--CO--NH--, --CO--NH--CR.sub.6 .dbd.N--, --CR.sub.6 .dbd.N--CO--NH--, --NR.sub.5--(CO).sub.m --O--or --NH--CR.sub.5 .dbd.N-- where PA1 R.sub.5 is hydrogen, C.sub.1-4 alkyl or phenyl, R.sub.6 is hydrogen, C.sub.1-4 alkyl or phenyl; PA1 m is 1 or 2 and R.sub.3 and R.sub.4 are either both hydrogen or form a single chain linking the 1,2-, 2,3- or 3,4-positions, the single chain having a formula selected from --NR.sub.5 --(CO).sub.m --NH--, --CR.sub.5 .dbd.CH--CO--NH--, --O--CH.sub.2 --CO--NH--, --CO--CH.dbd.CR.sub.5 --NH--, --CO--NH--CO--NH--, --CONH--CR.sub.6 .dbd.N--, --CR.sub.6 .dbd.N--CO--NH--, --NR.sub.5 --(CO).sub.m --O--or --NH--CR.sub.5 .dbd.N-- where the symbols R.sub.5, R.sub.6 and m are defined above and PA1 when R.sub.3 and R.sub.4 are in the 1,2-position and R.sub.7 is located in the 3-position or PA1 when R.sub.3 and R.sub.4 are in the 3,4-pos…