Ketotricyclo .5.2.1.0! decane derivatives

US5705169A · kind A · utility

Assignee

• Merck Patent GmbH · DE

Inventors

• Inge Stein · Rodgau, DE
• Michael Schwarz · Pocking, DE
• Ulrich Heywang · Darmstadt, DE

Key dates

• Filing date: Jul 24, 1995
• Grant date: Jan 6, 1998
• Expiry date: Jul 24, 2015

Classification

• Technology area (CPC A): Human Necessities
• CPC primary: A61Q17/04
• WIPO field: Pharmaceuticals
• WIPO sector: Chemistry

Abstract

The invention relates to ketotricyclo5.2.1.0!decane derivatives of the formula I ##STR1## wherein Phe is a phenylene group which is unsubstituted or substituted by 1 to 4 hydroxyl, alkyl or alkoxy groups having 1 to 10 C atoms, and their preparation and use as UV filters, in particular in cosmetic or pharmaceutical preparations.