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Note | Special issue | Vol 77, No. 1, 2009, pp.557-563
Published online, 7th March, 2008
DOI: 10.3987/COM-08-S(F)3
Secoiridoid Di-glycosides from Osmanthus ilicifolius

Shigeaki Sakamoto, Koichi Machida, and Masao Kikuchi*

*Department of 2nd Analytical Chemistry, Tohoku Pharmaceutical University, 4-4-1 Komatsushima, Aoba-ku, Sendai 981-8558, Japan

Abstract

Four new secoiridoid di-glycosides, 3’-O-β-D-glucopyranosyl ligustroside (1), 3’-O-β-D-glucopyranosyl 10-acetoxyligustroside (2), 3’-O-β-D- glucopyranosyl oleuropein (3) and 3’-O-β-D-glucopyranosyl 10-acetoxyole- uropein (4) were isolated from the leaves of Osmanthus ilicifolius. Their structures were established on the basis of chemical and spectral data. Furthermore, the structure of hiiragilide, previously elucidated to be 2’-O-β-D-glucopyranosyl 10-hydroxyligustroside, was revised as 3’-O-β-D-glucopyranosyl 10-hydroxyligustroside (5).