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:
Oct. 24, 1995
Filed:
Sep. 27, 1993
Applicant:
Inventors:
Donald Hou, Verona, NJ (US);
Richard W Draper, North Caldwell, NJ (US);
Gary M Lee, Murray Hill, NJ (US);
Janet L Mas, Scotch Plains, NJ (US);
Assignee:
Schering Corporation, Kenilworth, NJ (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C07C / ; C07C / ; C07D / ;
U.S. Cl.
CPC ...
540576 ; 560 27 ; 560 28 ; 560 29 ; 564355 ; 564308 ; 548228 ;
Abstract
Disclosed are a process and intermediates of the formula ##STR1## wherein R is --CH.sub.3 or --C(O)--OR.sup.1, and R.sup.1 is C.sub.1 -C.sub.6 alkyl or --CH.sub.2 C.sub.6 H.sub.5 ; or the formula ##STR2## wherein: R.sup.2 is H or OH, R is --C(O)OR.sup.1 and R.sup.1 is C.sub.1 -C.sub.6 alkyl or --CH.sub.2 C.sub.6 H.sub.5, or where R.sup.2 is H, R can also be CH.sub.3 ; for preparing benzazepine intermediates of the formula ##STR3## The benzazepine intermediates are useful for preparing benzazepines having activity as selective D1 receptor antagonists.