Described is a cyclohexenone long-chain alcohol represented by the formula
(1):
##STR1##
wherein R1, R2 and R3 each independently represents a hydrogen atom or a
methyl group and X represents a C10-18 alkylene or alkenylene group. The
cyclohexanone long-chain alcohol according to the present invention has
excellent neurite growth stimulating effects and is therefore useful as a
preventive and/or therapeutic agent for Alzheimer's disease.