(3-alpha,4-beta,6-beta)-1,3-Dimethyl-4-ethynyl-6-(2-methylphenyl)-3,4-piperidinediol 120729-77-3 3,4-Piperidinediol, 1,3-dimethyl-4-ethynyl-6-(2-methylphenyl)-, (3-alpha,4-beta,6-beta)- BRN 3552851 cis-1,3-Dimethyl-4-ethynyl-6-(2-methylphenyl)-3,4-piperidinediol