title: Bufadienolides from Urginea hesperia.
abstract: For the first time the composition of the bufadienolide complex in URGINEA HESPERIA Webb & Berth. has been investigated. From an extract of lyophilized plants, thirteen bufadienolides were isolated. By means of FAB-MS, (1)H-NMR, and (13)C-NMR studies the compounds were structurally elucidated as scillarenin, scilliphaeosidin, scillarenin-3- O-alpha- L-rhamnoside, scilliphaeosidin-3- O-alpha- L-rhamnoside, gamabufotalin-3- O-alpha- L-rhamnoside, 11alpha-hydroxyscilliglaucosidin-3- O-alpha- L-rhamnoside, scillarenin-3- O-alpha- L-2',3'-diacetylrhamnosido-4'-beta- D-glucoside, scillarenin-3- O-alpha- L-rhamnosido-4'-beta- D-glucosido-3''-beta- D-glucoside, scillarenin-3- O-alpha- L-rhamnosido-4'-beta- D-glucosido-4''-beta- D-glucoside, scillarenin-3- O-alpha- L-2',3'-diacetylrhamnosido-4'-beta- D-glucosido-3''-beta- D-glucoside, scillarenin-3- O-alpha- L-2',3'-diacetylrhamnosido-4'-beta- D-glucosido-4''-beta- D-glucoside, scilliphaeosidin-3- O-alpha- L-rhamnosido-4'-beta- D-glucosido-3''-beta- D-glucoside, and scilliphaeosidin-3- O-alpha- L-rhamnosido-4'-beta- D-glucosido-4''-beta- D-glucoside.
authors.affiliation: Institut für Pharmakognosie der Universität Wien, Währingerstraße 25, A-1090 Wien, Austria.
authors.forename: L
authors.initials: L
authors.lastname: Krenn
authors.forename: M
authors.initials: M
authors.lastname: Jambrits
authors.forename: B
authors.initials: B
authors.lastname: Kopp