(2alpha,6alpha,11R*)-5-(2-(1,4,5,6-Tetrahydro-8-hydroxy-6,11-dimethyl-2,6-methano-3-benzazocin-3(2H)-yl)ethyl)-1,2,4-benzenetriol 62228-26-6 N-(2,4,5-Trihydroxyphenethyl)normetazocine