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:
May. 12, 1998
Filed:
May. 30, 1995
Applicant:
Inventors:
Rupert Herrmann, Weilheim, DE;
Hans-Peter Josel, Weilheim, DE;
Karl-Heinz Drexhage, Siegen, DE;
Jutta Arden-Jacob, Siegen, DE;
Assignee:
Boehringer Mannheim GmbH, Mannheim, DE;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G01N / ; G01N / ; C07D / ; C07D / ;
U.S. Cl.
CPC ...
436517 ; 436536 ; 436172 ; 436800 ; 435-71 ; 546 42 ; 546 48 ;
Abstract
Pentacyclic derivatives having the general formulae (Ia), (Ib) and (Ic) ##STR1## denote: hydrogen, alkyl with 1 to 20 carbon atoms polyoxyhydrocarbyl, phenyl, phenylalkyl with 1 to 3 carbon atoms in the alkyl chain, wherein the alkyl residues or/and phenyl residues can be substituted by one or several hydroxy, halogen, sulfo, carboxy or alkoxycarbonyl groups in which alkoxy can have 1 to 4 carbon atoms;