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:
Mar. 13, 1990
Filed:
Jun. 07, 1988
Applicant:
Inventors:
John G Dingwall, Pantaleon, CH;
Josef Ehrenfreund, Allschwil, CH;
Roger G Hall, Chorlton-cum Hardy, GB;
James Jack, Stockport, GB;
Assignee:
Ciba-Geigy Corporation, Ardsley, NY (US);
Attorneys:
Primary Examiner:
Int. Cl.
CPC ...
C07F / ;
U.S. Cl.
CPC ...
558175 ;
Abstract
The compounds of the formula ##STR1## in which one of the groups R.sup.1, R.sup.2 and R.sup.3 represents hydrogen, C.sub.1 -.sub.8 -alkyl, C.sub.3 -.sub.6 -cycloalkyl, phenyl optionally substituted by halogeno, C.sub.1 -.sub.4 -alkyl, C.sub.1 -.sub.4 -alkoxy and/or trifluoromethyl, or C.sub.7 -.sub.10 -phenylalkyl optionally substituted in the phenyl moiety by halogeno, C.sub.1 -.sub.4 -alkyl, C.sub.1 -.sub.4 -alkoxy and/or trifluoromethyl, and the other two are hydrogen, or salts thereof. These compounds have valuable pharmaceutical properties.