(3S,4R,6S)-4-(3-Diethylamino-prop-1-ynyl)-1,3-dimethyl-6-p-tolyl-piperidine-3,4-diol
(3R,4R,6R)-4-Ethynyl-1,3-dimethyl-6-p-tolyl-piperidine-3,4-diol
(3R,4S,6R)-1,3-Dimethyl-6-p-tolyl-piperidine-3,4-diol
(5R,7aS)-6,7a-Dimethyl-5-p-tolyl-5,6,7,7a-tetrahydro-4H-furo[2,3-c]pyridin-2-one
(3S,4R,6S)-4-Ethynyl-1,3-dimethyl-6-p-tolyl-piperidine-3,4-diol