Pentacyclic compounds and their use as absorption or fluorescent dyes

US5750409A · kind A · utility

Assignee

• Boehringer Mannheim GmbH · DE

Inventors

• Rupert Herrmann · Weilheim, DE
• Hans-Peter Josel · Weilheim, DE
• Karl-Heinz Drexhage · Rochester, US
• Jutta Arden-Jacob · Zirndorf, DE

Key dates

• Filing date: May 30, 1995
• Grant date: May 12, 1998
• Expiry date: May 30, 2015

Classification

• Technology area (CPC C): Chemistry; Metallurgy
• CPC primary: C09B11/28
• WIPO field: Measurement
• WIPO sector: Instruments

Abstract

Pentacyclic derivatives having the general formulae (Ia), (Ib) and (Ic) ##STR1## denote: hydrogen, alkyl with 1 to 20 carbon atoms polyoxyhydrocarbyl, phenyl, phenylalkyl with 1 to 3 carbon atoms in the alkyl chain, wherein the alkyl residues or/and phenyl residues can be substituted by one or several hydroxy, halogen, sulfo, carboxy or alkoxycarbonyl groups in which alkoxy can have 1 to 4 carbon atoms; PA1 R.sup.7 denotes an alkyl group with 1 to 7 carbon atoms, substituted by at least one halogen, or denotes a carboxyalkyl group or a phenyl group which is substituted by a carboxy or alkoxycarbonyl group located at the o-position relative to the carbon atom bound to the pentacyclic ring system and by at least one halogen, wherein alkoxy can have 1 to 4 carbon atoms, or a carboxymethylene-oxy-alkyloxy group; the residues R.sup.14 and R.sup.15 as well as the positions on the rings in the formulae that are not marked by specific symbols denote any desired substituents which may optionally be linked together; PA1 the two bonds marked by a broken line mean that the two carbon atoms which are joined by the bond marked by a broken line can be linked together by a single or double bond; P…