Patent ID: 6331627
Filing Date: 2001-12-18
Classification: C07C,C07D

Abstract:
An intermediate of formula (IIIm) ##STR59##where, X represents O or S; the groups R.sup.1, R.sup.2, R.sup.3 and R.sup.4 may be same or different and represent hydrogen, halogen, hydroxy, cyano, nitro, formyl; or unsubstituted or substituted groups selected from alkyl, cycloalkyl, alkoxy, cycloalkyloxy, aryl, aryloxy, aralkyl, aralkoxy, heterocyclyl, heteroaryl, heteroaryloxy, heteroaralkyl, heteroaralkoxy, acyl, acyloxy, alkoxycarbonyl, aryloxycarbonyl, aralkoxycarbonyl, amino, alkylamino which may be mono or dialkylamino group, arylamino, acylamino, aralkylamino, aminoalkyl, hydroxyalkyl, alkoxyalkyl, aryloxyalkyl, aralkoxyalkyl, thioalkyl, alkylthio, alkoxycarbonylamino, aryloxycarbonylamino, aralkoxycarbonylamino, carboxylic acid or its amides, or sulfonic acid or its amides; W represents O; n is an integer ranging from 1-4; Ar represents an unsubstituted or substituted divalent aromatic or heterocyclic group; R.sup.7 represents hydrogen atom, hydroxy, alkoxy, halogen, lower alkyl, or unsubstituted or substituted aralkyl group or forms a bond with R.sup.8 ; R.sup.8 represents hydrogen atom, hydroxy, alkoxy, halogen, lower alkyl, acyl group or unsubstituted or substituted aralkyl, or R.sup.8 forms a bond together with R.sup.7 ; R.sup.9 represents hydrogen or unsubstituted or substituted groups selected from alkyl, cycloalkyl, aryl, aralkyl, alkoxyalkyl, aryloxyalkyl, alkoxycarbonyl, aryloxycarbonyl, alkylaminocarbonyl, arylaminocarbonyl, acyl, heterocyclyl, heteroaryl, or heteroaralkyl groups; R.sup.10 represents hydrogen or unsubstituted or substituted groups selected from alkyl, cycloalkyl, aryl, aralkyl, heterocyclyl, heteroaryl, or heteroaralkyl groups; and the linking group represented by --(CH.sub.2).sub.n --O--may be attached either through nitrogen atom or carbon atom.