Patent number: 4721719
Abstract: Reducing blood sugar with the novel dihydropyridinelactols, or salts thereof, of the formula ##STR1## in which R.sup.1 represents a phenyl, naphthyl, thienyl, pyridyl, chromonyl, thiochromonyl or thiochromenyl radical, the stated radicals optionally containing 1 or 2 identical or different substituents from the group consisting of fluorine, chlorine and bromine, alkyl, alkoxy and alkylthio, each having 1 to 6 carbon atoms, and fluoroalkyl or fluoroalkoxy, each having up to 3 carbon atoms and 3 fluorine atoms, and nitro and cyano,R.sup.2 represents a straight-chain, branched or cyclic alkyl having up to 12 carbon atoms which is optionally interrupted by 1 or 2 oxygen or sulphur atoms and which is optionally substituted by fluorine, chlorine, phenyl, cyano, hydroxyl, amino, C.sub.1 -C.sub.3 -alkylamino, di-C.sub.1 -C.sub.3 -alkylamino or N-benzylmethylamino,R.sup.3 represents cyano or straight-chain or branched alkyl which has up to 4 carbon atoms and is optionally interrupted in the chain by N-C.sub.1 -C.sub.
Type:
Grant
Filed:
August 27, 1986
Date of Patent:
January 26, 1988
Assignee:
Bayer Aktiengesellschaft
Inventors:
Siegfried Goldmann, Friedrich Bossert, Hans J. Ahr, Hilmar Bischoff, Walter Puls, Dieter Petzinna, Klaus Schlossmann, Joachim Bender