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:
Jun. 19, 1984
Filed:
Jul. 28, 1982
Frank Kienzle, Fluh, CH;
Hoffmann-La Roche Inc., Nutley, NJ (US);
Abstract
Imidazoquinazolines of the formula ##STR1## wherein one of R.sup.1 or R.sup.2 is hydrogen, chlorine, bromine, C.sub.1-4 -n-alkyl or C.sub.1-4 -n-alkoxy and the other is --N(R,R'), wherein R and R' are C.sub.1-4 -n-alkyl or R and R' taken together are tetramethylene or pentamethylene, and R.sup.3 and R.sup.4, independently, are hydrogen or methyl, their tautomers, when R.sup.3 and/or R.sup.4 are other than hydrogen, enantiomers thereof, as well as physiologically compatible acid addition salts of such compounds are described. The foregoing compounds inhibit the aggregation of blood platelets, inhibit gastric secretion or have activity on the circulatory system. Such compounds are prepared starting from the corresponding 4-benzylimidazo[1,2-a]quinazolin-2(1H)-ones in which the benzyl group is optionally substituted in the ortho- or para-position by C.sub.1-4 -alkyl or C.sub.1-4 -alkoxy.