Benzofuran derivatives and antiulcerogenic agents containing same

US4845096A · kind A · utility

Assignee

• BASF SE

Inventors

• Rainer Schlecker · Bissersheim, DE
• Klaus Ruebsamen · Neustadt, DE

Key dates

• Filing date: Mar 18, 1988
• Grant date: Jul 4, 1989
• Expiry date: Mar 18, 2008

Classification

• Technology area (CPC C): Chemistry; Metallurgy
• CPC primary: C07D413/06
• WIPO field: Organic fine chemistry
• WIPO sector: Chemistry

Abstract

Benzofuran derivatives of the general formula I ##STR1## where R.sup.1 and R.sup.2 are each hydrogen, alkyl or phenylalkyl, where alkyl in each case is of 1 to 4 carbon atoms, R.sup.3 and R.sup.4 are identical or different and are each hydrogen or C.sub.1 -C.sub.4 -alkyl or together form a 3-membered to 5-membered chain which may be interrupted by an oxygen atom or an NR.sup.1 group, X is --CO--CH.dbd.CH--, --CO--CH.sub.2 --CH.sub.2 --or --CHOH--CH.sub.2 --CH.sub.2 --, n is 2 or 3 and Het is an aromatic 5-membered or 6-membered ring which contains a hetero atom from the group consisting of N, O and S and may additionally contain a (further) N atom, in which the ring may be substituted by C.sub.1 -C.sub.4 -alkyl, fluorine, chlorine, bromine, NH.sub.2 or NR.sup.1 R.sup.2, where R.sup.1 and R.sup.2 have the abovementioned meanings, the use of these benzofuran derivatives for the preparation of pharmaceutical, in particular antiulcerogenic, agents, and these agents themselves are described.