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:
Dec. 22, 1992
Filed:
Feb. 16, 1990
Applicant:
Inventors:
Assignee:
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
A61K / ; A61K / ; C07C / ;
U.S. Cl.
CPC ...
424 70 ; 514513 ; 514533 ; 514544 ; 514880 ; 560 59 ; 560 61 ;
Abstract
Aromatic esters and thioesters of the formula ##STR1## are useful in human and veterinary medicine and in cosmetic formulations. In the formula, X represents oxygen or sulfur, r' and 4' represent hydrogen, lower alkyl, monohydroxyalkyl, polyhydroxyalkyl, aryl or benzyl optionally substituted, the residue of an amino acid or aminated sugar, or taken together form a heterocycle, R.sub.2 represents .alpha., .alpha.'- dissubstituted alkyl having 4-12 carbon atoms or mono- or polycyclic cycloalkyl having 5-12 carbon atoms whose carbon linking carbon is trisubstituted and R.sub.3 and R.sub.4 represent hydrogen or lower alkyl.