Oleanane‐Type Glycosides from Tremastelma palaestinum (L.) Janchen
Makaleler > Tam Makale · 2014
Yazarlar: Gokhan SENEL, Derya GÜLCEMAL, Milena MASULLO, Sonia PIACENTE, Tamer KARAYILDIRIM
Chemistry & Biodiversity, SCI Expanded İndekslerine Giren Dergi, Uluslararası, Wos, 2014, cilt 11, ss 408-418
Özet
Three new oleanane-type glycosides, 1-3, were isolated from the whole plant of Tremastelma palaestinum (L.) Janchen, along with eight known triterpene glycosides. The structures of the new compounds were established as 3-O-[β-d-glucopyranosyl-(1→3)-α-l-rhamnopyranosyl-(1→3)-β-d-glucopyranosyl-(1→3)-α-l-rhamnopyranosyl-(1→2)-α-l-arabinopyranosyl]hederagenin (1), 3-O-[β-d-glucopyranosyl-(1→3)-α-l-rhamnopyranosyl-(1→3)-β-d-glucopyranosyl-(1→3)-α-l-rhamnopyranosyl-(1→2)-α-l-arabinopyranosyl]hederagenin 28-O-β-d-glucopyranosyl-(1→6)-β-d-glucopyranosyl ester (2), and 3-O-[α-l-rhamnopyranosyl-(1→3)-β-d-glucopyranosyl-(1→3)-α-l-rhamnopyranosyl-(1→2)-α-l-arabinopyranosyl]oleanolic acid 28-O-β-d-glucopyranosyl-(1→6)-β-d-glucopyranosyl ester (3) by using 1D- and 2D-NMR techniques and mass spectrometry. This is the first report on the phytochemical investigation of a species belonging to Tremastelma genus.