Patent ID: 6211379
Filing Date: 2001-04-03
Classification: C07D

Abstract:
Process for preparing compounds of the formula (I) ##STR12##in whichR.sup.1 represents a hydrogen atom or an alkyl group,A represents an ethylene group, which may be substituted by alkyl, or a trimethylene group, which may be substituted by alkyl,X represents an oxygen or sulphur atom or the group ##STR13##in whichR.sup.3 represents a hydrogen atom or an alkyl group, andZ represents an optionally substituted 5- or 6-membered heterocyclic group which contains at least two heteroatoms selected from the group consisting of oxygen, sulphur and nitrogen atoms, or denotes an optionally substituted 3- or 4-pyridyl group,characterized in that compounds of the formula (II) ##STR14##in whichA and X are each as defined above are reacted with compounds of the formula (III) ##STR15##in whichR.sup.1 and Z are each as defined above andM.sup.1 denotes a halogen atom or the group --OSO.sub.2 -M.sup.2, in whichM.sup.2 denotes a lower alkyl group, an aryl group or OM.sup.3, whereM.sup.3 denotes a lower alkyl group or an alkali metal,in the presence of a define solvent and, if appropriate, in the presence of a base.