Compounds of general formula (I) below: in which R is a hydrogen atom, a methyl group, a CH2OH group, an ester group, preferably COOEt, or a methylene group, and in which not more than one of the four dashed lines represents a carbon-carbon double bond, and also their enantiomers and their diastereoisomers, a process for preparing them, and their use as an odorant agent in perfuming compositions.
