(3-alpha,4-beta,6-beta)-6-(2,4-Dichlorophenyl)-1,3-dimethyl-4-ethynyl-3,4-piperidinediol 120729-79-5 3,4-Piperidinediol, 6-(2,4-dichlorophenyl)-1,3-dimethyl-4-ethynyl-, (3-alpha,4-beta,6-beta)- BRN 3557830 cis-6-(2,4-Dichlorophenyl)-1,3-dimethyl-4-ethynyl-3,4-piperidinediol