The present invention is directed to a specifically substituted tetrahydrofuran of the formula (I) ##STR1## wherein R.sup.4 is an alkylthio, alkylsulfinyl or alkylsulfonyl containing group, Y is an alkyl or substituted alkyl group and R.sup.6 is an alkoxy or a substituted alkoxy or alkyl group.
本发明涉及具有以下结构的特定取代
四氢呋喃化合物(I)##STR1##其中R.sup.4是含有烷基
硫醚,烷基亚砜基或烷基砜基的基团,Y是烷基或取代烷基基团,R.sup.6是烷氧基或取代烷氧基或烷基基团。