(2R,3R)-1,2-O-cyclohexylidene-3-acetoxy-3-phenylpropane

(+)-(2R,3S)-3-(2-ethoxyphenoxy)-2-hydroxy-1-(4-nitrobenzoyloxy)-3-phenylpropane

(1S,2R)-2,3-(cyclohexylidenedioxy)-1-phenylpropan-1-ol