There is provided a novel compound having neurite-outgrowing activity that is useful for the prevention or the treatment of a neurodegenerative disease. A compound of Formula (I)[where X is OR or NR1R2, Y is OH, NR3R4, -NHC(=NH)NHR5, or -NHC(=NH)R5, and Z is a hydrogen atom, a linear or branched C1-5 alkyl group, or a 5- or 6-membered ring aryl group optionally having 1 or 2 nitrogen atom(s), sulfur atom(s), or oxygen atom(s)], or a pharmaceutically or veterinary-medically acceptable salt of the compound.
