Abstract
The bufadienolides, 6β-acetoxy-3β,8β,12β,14β-tetrahydroxybufa-4,20,22-trienolide (12β-hydroxyscillirosidin) (
1) and 14β-hydroxybufa-4,20,22-trienolide 3β-
O-{α-
l-rhamnopyranosyl-[(1→4)-β-
d-glucopyranosyl]-(1→3)-α-
l-rhamnopyranoside} (urginin) (
2) were isolated from
Drimia robusta and
Urginea altissima, respectively.
12β-Hydroxyscillirosidin and urginin (
A) were isolated from
Drimia robusta and
Urginea altissima, respectively. Although alkaloids were previously reported from
Urginea altissima, none were isolated in this work.