Acetic acid (3R,4S,5S)-4,5-diacetoxy-1-(4-methoxy-phenyl)-2,6-dioxo-piperidin-3-yl ester
xylitol
Acetic acid (2R,3S,4R,5S)-4,5-diacetoxy-1-(4-methoxy-phenyl)-6-oxo-2-propa-1,2-dienyl-piperidin-3-yl ester
Acetic acid (3R,4R,5S)-3,4,5-triacetoxy-1-(4-methoxy-phenyl)-6-oxo-piperidin-2-yl ester
Acetic acid (2R,3S,4R,5S)-4,5-diacetoxy-2-hydroxymethyl-1-(4-methoxy-phenyl)-6-oxo-piperidin-3-yl ester