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:
Mar. 22, 1977
Filed:
Dec. 15, 1975
Applicant:
Inventors:
Richard E Brown, East Hanover, NJ (US);
David M Lustgarten, Dover, NJ (US);
Assignee:
Warner-Lambert Company, Morris Plains, NJ (US);
Primary Examiner:
Int. Cl.
CPC ...
C07D / ;
U.S. Cl.
CPC ...
424275 ; 2603 / ;
Abstract
This invention relates to substituted 2-aminothiochromones of the general structure I: ##STR1## wherein R.sub.1 and R.sub.2 may be hydrogen; lower alkyl or lower alkoxy of 1 to 6 carbon atoms; or halogen such as chloro or bromo; and X may be cyano or carboxamido. The compounds are prepared using a thiosalicylic acid or a substituted thiosalicylic acid as starting material. The compounds of this invention are active in the prevention of allergic and asthmatic reactions in mammals.