(2R,3R,4S,5S)-5-(Benzyloxy)-2-(hydroxymethyl)piperidine-3,4-diol

(2R,3R,4S,5S)-4,5-(isopropylenedioxy)-3-(methoxymethoxy)-2-<(methoxymethoxy)methyl>piperidine

(2R,3R,4R,5S)-3-benzyloxy-2-benzyloxymethyl-4,5-isopropylidenedioxypiperidine

(2R,4aR,7S,8R,8aR)-tert-butyl 8-hydroxy-7-(methoxymethyl)-2-phenyltetrahydro-4H-[1,3]dioxino[5,4-b]pyridine-5(4aH)-carboxylate