2,6-Methano-3-benzazocin-8-ol, 1,2,3,4,5,6-hexahydro-3-(cyclobutylemthyl)-6-ethyl-1-methyl- 2,6-Metheno-3-benzazocin-8-ol, 3-(cyclobutylmethyl)-6-methyl-1,2,3,4,5,6-hexahydro-1-methyl- 63869-51-2 WIN-23100