title: Studies on constituents with cytotoxic activity from the stem bark of Syringa velutina.
abstract: Cytotoxic compounds, oleuropein (1) and a phenylethanoid glycoside (2) were isolated from the stem bark of Syringa velutina KOM. along with coniferylaldehyde 4-O-glucoside, syringin, ligstroside, (+)-syringaresinol 4-O-glucoside, (+)-medioresinol 4"-O-glucoside and (-)-olivil 4"-O-glucoside. Phenylethanoid glycoside (2) was identified to be 3,4-dihydroxyphenylethyl alcohol 8-O-beta-D-glucopyranoside. This compound showed the most potent cytotoxic effect on several tumor cell lines (P-388, L-1210, SNU-5 and HL-60) among eight compounds isolated in the present study. We suggest that the 3,4-dihydroxyphenylethoxy moiety of this compound contributes to cytotoxicity.
authors.affiliation: Department of Botanical Resources, Sangi University, Wonju, Korea.
authors.forename: H J
authors.initials: HJ
authors.lastname: Park
authors.forename: M S
authors.initials: MS
authors.lastname: Lee
authors.forename: K T
authors.initials: KT
authors.lastname: Lee
authors.forename: I C
authors.initials: IC
authors.lastname: Sohn
authors.forename: Y N
authors.initials: YN
authors.lastname: Han
authors.forename: K
authors.initials: K
authors.lastname: Miyamoto
mesh_terms: D000818:Animals; D000972:Antineoplastic Agents, Phytogenic / Q000302:isolation & purification / Q000494:pharmacology*; D004354:Drug Screening Assays, Antitumor; D005960:Glucosides / Q000302:isolation & purification / Q000494:pharmacology*; D018922:HL-60 Cells; D006801:Humans; D007723:Korea; D007939:Leukemia L1210 / Q000188:drug therapy; D007941:Leukemia P388 / Q000188:drug therapy; D051379:Mice; D019441:Plant Epidermis / Q000737:chemistry; D018547:Plant Stems / Q000737:chemistry; D010946:Plants, Medicinal / Q000737:chemistry*; D014407:Tumor Cells, Cultured
chemical_list: D000972:Antineoplastic Agents, Phytogenic; D005960:Glucosides