Patent · US Expired

Benzylidenenorcamphor derivatives

US5730960A · kind A · utility

75Cited by

4References

11Claims

0Family size

Assignee

Merck Patent GmbH · DE

Inventors

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

Key dates

Filing date	Jul 21, 1995
Grant date	Mar 24, 1998
Priority date	—
Expiry date	Jul 21, 2015

Classification

Technology area (CPC C)Chemistry; Metallurgy
CPC primaryC07C49/747
WIPO fieldPharmaceuticals
WIPO sectorChemistry

Abstract

The use of a benzylidenenorcamphor compound of the formula I ##STR1## wherein Phe is a phenyl group which is unsubstituted or substituted by 1 to 5 hydroxyl, alkyl or alkoxy groups having 1 to 10 C atoms, and n is 1 or 2. as sunscreen filters, and also novel compounds of the formula I, their preparation and use as UV filters, in particular in cosmetic or pharmaceutical preparations.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.