Indoline and 1,2,3,4-tetrahydroquinoline N(dicarboalkoxyvinyl) substituted derivatives

US4792609A · kind A · utility

Assignee

• BAYER HEALTHCARE LLC · DE

Inventors

• Thomas Scholl · New Haven, US
• Otto Exner · Monheim, DE
• Peter Finkel · Cologne, DE
• Hermann Perrey · Krefeld, DE

Key dates

• Filing date: May 21, 1986
• Grant date: Dec 20, 1988
• Expiry date: May 21, 2006

Classification

• Technology area (CPC C): Chemistry; Metallurgy
• CPC primary: C07D215/06
• WIPO field: Pharmaceuticals
• WIPO sector: Chemistry

Abstract

An indoline derivative of the formula (I) ##STR1## in which R.sup.1 denotes H or C.sub.1 -C.sub.8 -alkyl; PA0 R.sup.2 and R.sup.3 are identical or different and denote C.sub.1 -C.sub.8 -alkyl; PA0 R.sup.4 -R.sup.9 are identical or different and denote H, C.sub.1 -C.sub.8 -alkyl, C.sub.5 -C.sub.6 -cycloalkyl or phenyl-C.sub.1 -C.sub.4 -alkyl, or R.sup.5 and R.sup.6 connected together to form a further C.sub.5 -C.sub.6 ring, and PA0 R.sup.10 denotes H or one or more radicals selected from the group consisting of C.sub.1 -C.sub.8 -alkyl, C.sub.1 -C.sub.8 alkoxy, C.sub.5 -C.sub.6 -cycloalkyl, phenyl-C.sub.1 -C.sub.4 -alkyl and carb-C.sub.1 -C.sub.8 -alkoxy radicals, or halogen atoms. Such indoline derivative is useful as a UV absorber.