Diene intermediates for indantetrols are provided having the structure ##STR1## wherein X is a single bond or a straight or branched chain alkylene group containing from 1 to 10 carbons, Y is ##STR2## wherein R.sub.7 is hydrogen, lower alkyl, arylalkyl or lower alkoxy and ##STR3## is taken together to form a piperidyl or pyrrolidyl radical, R.sub.8 and R'.sub.8 are lower alkyl or monocyclic cycloalkyl, n is 1 to 3, m and m' are 0, 1 or 2.
提供具有以下结构的Diene中间体,用于indantetrols:##STR1##其中,X是单键或含有1至10个碳的直链或支链烷基,Y是##STR2##其中,R.sub.7是氢、低级烷基、芳基烷基或低级烷氧基,而##STR3##则结合在一起形成
哌啶基或
吡咯基基团,R.sub.8和R'.sub.8是低级烷基或单环萜烷基,n为1至3,m和m'为0、1或2。