(+-)-5-(3-carboxypropylthio)-1-(2-cyclohexyl-2-hydroxyethylideneamino)-3-ethylhexahydrocyclopenta(d)imidazol-2(1H)-one
(+-)-5-(3-carboxypropylthio)-1-(2-cyclohexyl-2-hydroxyethylideneamino)-3-ethylhexahydrocyclopenta(d)imidazol-2(1h)-one