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. 23, 1983
Filed:
Oct. 26, 1981
Applicant:
Inventors:
Bansi Lal, Bombay, IN;
Adolf D'Sa, Bombay, IN;
Horst Dornauer, Bombay, IN;
Noel J de Souza, Bombay, IN;
Assignee:
Hoechst Aktiengesellschaft, Frankfurt am Main, DE;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
C07D / ; A61K / ;
U.S. Cl.
CPC ...
544246 ; 544244 ; 544252 ; 424251 ;
Abstract
What are disclosed are compounds of the formula ##STR1## wherein, X is oxygen, sulfur, or halogen, useful as intermediates in the preparation of certain pyrimido(6,1-a)isoquinolin-4-ones having pharmaceutical utilities, and methods for making said intermediates.