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:
May. 12, 1987
Filed:
Aug. 24, 1984
Christian G Rimbault, Grand-Lancy, CH;
Philippe M Narbel, Prangins, CH;
Zyma SA, Nyon, CH;
Abstract
The invention relates to pharmaceutical preparations containing compounds of formula I ##STR1## in which X.sub.1 and X.sub.2, independently of each other, represent hydrogen, halogen, unsubstituted or substituted amino or a quaternary ammonium salt; etherified or esterified hydroxy; free, etherified, esterified or oxidized mercapto; nitro; functionally modified formyl; free or functionally modified carboxyl; acyl; an unsubstituted or substituted hydrocarbon radical, or an unsubstituted or substituted heterocyclic radical; with the proviso that at least one of the radicals X.sub.1 and X.sub.2 is bonded by a carbon atom to the ring system and with the proviso that X.sub.1 and X.sub.2 cannot be together halogen and formyl; in which Y represents oxygen, sulfur, sulfinyl or sulfonyl but must be sulfur, sulfinyl or sulfonyl, if X.sub.1 is hydrogen and X.sub.2 is formyl, and the rings A and B are each unsubstituted or substituted; or pharmaceutically acceptable salts of such compounds that contain a salt-forming group, and to novel compounds of formula I. The compounds are useful e.g. for the treatment of diseases of the respiratory tract and of liver diseases. The are prepared by methods known per se.