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:
Aug. 19, 1997
Filed:
Jun. 05, 1995
Applicant:
Inventors:
Paul P Ehrlich, Libertyville, IL (US);
Michael R Michaelides, Gurnee, IL (US);
Maureen A McLaughlin, Chicago, IL (US);
Chi-Nung Hsaio, Libertyville, IL (US);
Assignee:
Abbott Laboratories, Abbott Park, IL (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C07D / ;
U.S. Cl.
CPC ...
546 62 ; 546 61 ; 564167 ; 549 77 ; 549 75 ; 549496 ;
Abstract
A process for preparing a chiral tetracyclic compound of formula: ##STR1## wherein R is hydrogen or a C.sub.1 -C.sub.6 -alkyl group and Z is oxygen, sulfur or --CH.dbd.CH--, the compounds having uses as dopamine agonists. The process involves reacting a chiral starting material and subsequent chiral intermediates in a series of chirality-preserving synthetic reactions.