Abstract
| - A new phenylethanoid glycoside, samioside, was isolated from the aerial parts of Phlomis samia andidentified as 1-O-3,4-(dihydroxyphenyl)ethyl β-d-apiofuranosyl-(1→4)-α-l-rhamnopyranosyl-(1→3)-4-O-caffeoyl-β-d-glucopyranoside (1). In addition, one known phenylethanoid glycoside and three knownflavonoids were identified as acteoside (2), apigenin, chrysoeriol, and ermanin, respectively. The structureof 1 was elucidated on the basis of its spectroscopic data. Samioside (1) demonstrated scavenging propertiestoward the DPPH radical and antimicrobial activity against Gram-positive and -negative bacteria.
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