PREPARATION OF NOVEL ORGANIC COMPOUNDS

摘要

PURPOSE:Organic compounds of formula I(R<1> and R<2> are H, halogen, lower alkyl, lower alkoxy, CF3;R<3> is H, OH, or aryl or heterocyclic radical which may have substituent groups, such as halogan, lower alkyl, lower alkoxy, lower alkylthio or CF3 ; Y is S, SO, SO2 ; 4 is lower alkylene ; B is a single bond, lower alkylene ; and n is 2-4), or salts thereof.