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:
Sep. 02, 1986
Filed:
Dec. 18, 1984
Applicant:
Inventors:
Hermann Eggerer, Planegg, DE;
Bernd Hagenbruch, Lampertheim, DE;
Tran G Nguyen, Mannheim, DE;
Karlheinz Stegmeier, Heppenheim, DE;
Johannes Pill, Leimen, DE;
Assignee:
Boehringer Mannheim GmbH, Mannheim, DE;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C07C / ; C07C / ; A61K / ;
U.S. Cl.
CPC ...
514542 ; 514529 ; 562503 ; 562505 ; 514530 ; 562506 ; 562507 ; 514531 ; 562556 ; 564154 ; 514533 ; 514538 ; 514546 ; 514547 ; 514549 ; 514550 ; 514554 ; 514555 ; 514562 ; 560 12 ; 560 13 ; 560 16 ; 560105 ; 560121 ; 560123 ; 560124 ; 560125 ; 560148 ; 560150 ; 560151 ; 560153 ; 560184 ; 560226 ; 560250 ; 560251 ; 560252 ; 560253 ; 562426 ; 562430 ;
Abstract
The present invention provides carboxylic acid derivatives of the general formula: ##STR1## wherein R is a hydrogen atom, alkyl, a metal cation or an ammonium or alkylammonium ion, R.sub.1 is a hydrogen atom, a hydroxyl group or an alkyl, O-alkyl,O-benzyl or O-acyl radical, R.sub.2 is a hydrogen atom or an alkyl, aryl or aralkyl radical, n is 0, 1 or 2 and R.sub.3 is an acyl radical, this radical being