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. 19, 1985
Filed:
Mar. 28, 1983
Applicant:
Inventors:
Heinz Balli, Riehen, CH;
Sigmund Gunzenhauser, Arlesheim, CH;
Ian J Fletcher, Magden, CH;
Davor Bedekovic, Therwil, CH;
Assignee:
Ciba-Geigy Corporation, Ardsley, NY (US);
Attorneys:
Primary Examiner:
Int. Cl.
CPC ...
C07D / ;
U.S. Cl.
CPC ...
546 64 ; 546121 ;
Abstract
The invention relates to chromenoazaindolizines of the general formula ##STR1## wherein each of Y, X.sub.1 and X.sub.2 independently of the other is hydrogen, halogen, lower alkyl, lower alkanoylamino or a group of the formula ##STR2## each of R.sub.1, R.sub.2, R.sub.3 and R.sub.4 independently of the other is hydrogen, C.sub.1 -C.sub.12 alkyl which is unsubstituted or substituted by halogen, hydroxy, cyano or lower alkoxy, or is cycloalkyl, phenyl, benzyl, or phenyl or benzyl each substituted by halogen, nitro, lower alkyl or lower alkoxy, or