Xanthene dyes

US7704284B2 · kind B2 · utility

Assignee

• Ciba Corp. · US

Inventors

• Victor Paul Eliu · Lörrach, DE
• Beate Fröhling · Weil am Rhein, DE
• Dominique Kauffmann · Illzach, FR

Key dates

• Filing date: Sep 25, 2006
• Grant date: Apr 27, 2010
• Expiry date: Apr 10, 2027

Classification

• Technology area (CPC C): Chemistry; Metallurgy
• CPC primary: C09B11/245
• WIPO field: Pharmaceuticals
• WIPO sector: Chemistry

Abstract

Disclosed are compounds of formula (1a), wherein R1 is N+R8R9; R8 and/or R9 independently from each other are hydrogen; C1-C12alkyl; or phenyl-C1-C4-alkyl; or R8 and/or R9 are a bivalent C3-C6alkylene radical which is linked to the carbon atoms C1 or C2 respectively and, together with the linking nitrogen atom form a 6 to 16-membered carbocyclic ring; R2 is NR10R11; or OR10; R10 and R11, independently from each other are hydrogen; C1-C12alkyl; or phenyl-C1-C4alkyl; or R10 and/or R11 are a bivalent C3-C6alkylene radical which is linked to the carbon atoms C3 or C4 respectively and, together with the linking nitrogen or oxygen atom form a 6 to 16-membered carbocyclic ring; or R10 and R11 together with the linking nitrogen atom form a 4 to 8 membered carbocyclic ring; R3, R4, R5, R6 and R7 independently form each other are hydrogen; C1-C12alkyl; halogen; NR12R13; or a radical of formula (1a); R12 and R13 independently from each other are hydrogen; C1-C12alkyl; phenyl-C1-C4alkyl; or a radical of formula (1a2); V is —O—; Or —NR15; R14, R15 R-16 and R17 independently from each other are hydrogen; or C1-C5alkyl; and Hal is a halogen atom; and wherein at least one of R3, R4, R5, R6 and R7 …