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. 31, 1992
Filed:
Sep. 29, 1989
Beatrice Rendenbach-Mueller, Waldsee, DE;
Harald Weifenbach, Ludwigshafen, DE;
Jans-Juergen Teschendorf, Dudenhofen, DE;
BASF Aktiengesellschaft, Ludwigshafen, DE;
Abstract
Arylalkoxycoumarins of the general formula I ##STR1## where R.sup.1 and R.sup.2 independently of one another are each hydrogen, lower alkyl, phenyl or halogen, or the two radicals together form an alkylene bridge of 3 to 5 carbon atoms, R.sup.3 is lower alkyl or halogen, n is an integer of from 0 to 3, m is an integer of from 0 to 4, R.sup.4 is hydrogen or lower alkyl and Ar is a phenyl ring which is monosubstituted to trisubstituted by halogen, C.sub.1 -C.sub.6 -alkyl or C.sub.1 -C.sub.6 -alkoxy or monosubstituted by nitro, cyano or trifluoromethyl or is a naphthyl ring, with the proviso that m is not 0 when Ar is unsubstituted phenyl, processes for their preparation, and drugs prepared therefrom.