Patent ID: 8871967

Claim:
A compound of formula in the form of any one of its stereoisomers or of a mixture thereof, and wherein n is 0 or 1; R l represents a hydrogen atom or a methyl or ethyl group; R 2 represents a hydrogen atom or a methyl or ethyl group; and R 3 represents: a) a C 5 -C 8 group of formula wherein one dotted line represents a carbon-carbon single or double bond and the other a carbon-carbon single bond; R 4 represents a C 1-4 alkyl or alkenyl group; R 5 ′ represents a hydrogen atom or a methyl group; and each R 5 , taken separately, represents a hydrogen atom or a methyl group, or two R 5 , taken together, represent a CH 2 group (in such a case clearly both dotted lines represent a single bond); or R 4 and one R 5 , taken together, represent a C 3-4 hydrocarbon group; or b) a C 5 -C 8 group of formula wherein R 6 represents a C 3-4 alkyl or alkenyl group, R 6′ represents a hydrogen atom or a methyl or ethyl group, and R 5 is defined as above; provided that cyclopropylmethyl 2,4-hexadienoate, cyclopropylmethyl hexanoate and cyclopropylmethyl octanoate are excluded.