5-(N-(3-ethylsulfonyl-2-(1-naphthylmethyl)propionyl)norleucyl)amino-5-cyclohexyl-1-morpholino-2,3-pentanediol
5-(n-(3-ethylsulfonyl-2-(1-naphthylmethyl)propionyl)norleucyl)amino-5-cyclohexyl-1-morpholino-2,3-pentanediol