Patent ID: 7655614

Claim:
A fragrance composition comprising a compound of the following formula, wherein R 1 is hydrogen; or R 1 and R 2 are independently C 2-8 alkyl, C 2-8 alkenyl, C 3-8 cycloalkyl, C 3-8 cycloalkyl substituted with at least one C 1-3 alkyl, aryl, or aryl group substituted with at least one C 1-3 alkyl group; R 3 is hydroxy, C 1-8 alkoxy, C 3-8 cycloalkoxy, C 2-5 alkoxymethyloxy, aryloxy, or aryloxy wherein the aromatic ring is substituted with C 1-3 alkyl; or R 2 and R 3 form together with the carbon atom to which they are attached a carbonyl group.