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:
Mar. 09, 1994
Applicant:
Inventors:
Bernhard Kutscher, Maintal, DE;
Hans-Reinhold Dieter, Darmstadt, DE;
Assignee:
Asta Medica Aktiengesellschaft, Frankfurt am Main, DE;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C07D / ; C07D / ; C07D / ;
U.S. Cl.
CPC ...
544 14 ; 544 34 ; 546312 ; 546264 ;
Abstract
6-aza-benzo[b]-phenothiazine derivatives having the formula, ##STR1## wherein X and Y can be any of hydrogen, lower alkyl, lower haloalkyl, carboxyl or carboxy alkyl are obtained through a reaction of 2-quinioline derivatives having the formula ##STR2## with a suitable 2-mercaptoaniline derivatives or dimers thereof under oxidative or free radical conditions. The 6-aza-benzo[b]-phenothiazine derivative are valuable precursors for pharmaceutically active substances such as pipacetate, isothioperdyl and prothiperdyl.