1989 年 109 巻 7 号 p. 460-463
Two new secoiridoid glucosides, named ibotalactone A and ibotalactone B, have been isolated together with oleonuezhenide from the leaves of Ligustrum obtusifolium SIEB. et ZUCC., and the structures were elucidated on the basis of nuclear magnetic resonance spectra and other physicochemical evidence.