3-(3-benzoylpropyl)-6-(p-tolyl)-1,2,4,5-tetroxan

pentaoxabicycloundecane

1-phenyl-2,3,5,6,11-pentaoxa-4-exo-(3-benzoylpropyl)bicyclo[5.3.1]undecane

4-苯甲酰基丁酸

2-苯甲酰基苯乙酸