3-Cyclopropylmethyl-1,2,3,4,5,6-hexahydro-6,11-dimethyl-8-hydroxy-2,6-methan-3-benzazocin, 3-cyclopropyl-methyl-1,2,3,4,5,6-hexahydro-6,11-dimethyl-2,6-methano-3-benzazocin-8-ol, NIH 7981, 2'-Hydroxy-5,9-dimethyl-2-cyclopropylmethyl-6,7-benzomorphan, UM 407, zazocin-8-ol, 2-Cyclopropylmethyl-5,9-dimethyl-2'-hydroxy-6,7-benzomorphan, 2'-Hydroxy-2-cyclopropylmethyl-5,9-dimethyl-6,7-benzomorphan, WIN 20,740