(1R)-2β-(2-Methyl-1-propenyl)-3,3-dimethylcyclopropane-1α-carboxylic acid (1,3-benzodioxol-5-yl)methyl ester C??? ??, ??, ??

(1R)-2β-(2-Methyl-1-propenyl)-3,3-dimethylcyclopropane-1α-carboxylic acid (1,3-benzodioxol-5-yl)methyl ester ?? ?? ? ???

???

?? ??

(1R)-2β-(2-Methyl-1-propenyl)-3,3-dimethylcyclopropane-1α-carboxylic acid (1,3-benzodioxol-5-yl)methyl ester ?? ??