The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Nov. 23, 1999
Filed:
Apr. 03, 1997
Applicant:
Inventors:
Michael Klaus, Weil am Rhein, DE;
Peter Mohr, Basle, CH;
Assignee:
Hoffman-La Roche Inc., Nutley, NJ (US);
Attorneys:
Primary Examiner:
Int. Cl.
CPC ...
C07C / ;
U.S. Cl.
CPC ...
554118 ; 554214 ;
Abstract
Compounds of the formula: ##STR1## wherein R.sup.2 and X are as described, are disclosed. The compounds are useful for treating dermatological disorders which are accompanied by epithelial lesions, e.g., acne and psoriasis, as well as malignant and premalignant epithelial lesions, tumours and precancerous changes of the mucous membrane in the mouth, tongue, larynx, oesophagus, bladder, cervix and colon.