Patent ID: 6258832
Filing Date: 2001-07-10
Classification: A61P,C07D

Abstract:
A process for the production of compounds of the general formula III ##STR7##in whichA denotes CH.dbd.CH or SW denotes OX denotes S, O or NR.sup.2 in which the residue R.sup.2 is hydrogen or C.sub.1 -C.sub.6 alkyl,Y denotes CH or NR denotes naphthyl, thienyl or phenyl which is optionally monosubstituted or disubstituted with C.sub.1 -C.sub.3 alkyl, CF.sub.3, C.sub.1 -C.sub.3 alkoxy, F, Cl or bromine,R.sup.1 denotes hydrogen or C.sub.1 -C.sub.6 alkyl andn denotes 1-3wherein a compound of the general formula IV, ##STR8##in which A, W, X, Y, R, R.sup.1 and n have the meanings stated above is reduced with metallic aluminium in a protic solvent.