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. 29, 1995
Filed:
Aug. 02, 1993
Applicant:
Inventors:
Eckhard Ottow, Berlin, DE;
Rudolf Wiechert, Berlin, DE;
Gunter Neef, Berlin, DE;
Sybille Beier, Berlin, DE;
Walter Elger, Berlin, DE;
David A Henderson, Berlin, DE;
Assignee:
Schering Aktiengesellschaft, Berlin and Bergkamen, DE;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C07J / ;
U.S. Cl.
CPC ...
552510 ;
Abstract
A process of cyclizing compounds of formula II ##STR1## wherein K, V', R.sup.1 and 1 are as herein defined, is described whereby a compound of formula IVa is produced ##STR2## wherein K, V', R.sup.1, Q, S and 1 are as herein defined. The compounds of formula IVa are useful intermediates in the production of compounds of formula I ##STR3## wherein ring A, B, G, V, Z, R.sup.1 and R.sup.2 are as herein defined.