1,6-Methano-2-benzazocine, 1,2,3,4,5,6-hexahydro-2-(3-methyl-2-butenyl)-, hydrochloride 2-(3-Methyl-2-butenyl)-1,2,3,4,5,6,hexahydro-1,6-methano-2-benzazocine hydrochloride 76777-07-6