Two New Acyclic Diterpene-γ-lactones from Salix matsudan

Abstract

Two new phytane-type diterpene-gamma-lactones named hanliuine I (1) and hanliuine II (2), were isolated from leaves of Salix matsudana (chinese name "hanliu", Berberidaceae). Their structures were deduced from 1D and 2D NMR techniques.

Heterocyclic terpenes: linear furano- and pyrroloterpenoids

“…An acyclic diterpene-c-lactone, hanliuine I 154, has been obtained from Salix matsudan. 116 The lactone naviculide 155 has been obtained from the liverwort Porella navicularis, 117 whilst some geranyl-linalool glycosides, the capsiansides, have been reported from Capsicum plants. 118 The lactone 156 has been isolated from Melampodium leucanthum.…”

A New Flavonoid Glycoside from Salix denticulata Aerial Parts

“…Salix denticulata which belongs to the Salicaceae family is a deciduous shrub indigenous to Central Himalayas (3000 meter) of India and is well known for its medicinal importance [1]. Previous studies on the plants of this genus led to isolation and elucidation of different compounds such as terpenoids [2], catechins [3], lignans [4], flavones [5,6] and other phenolic compounds [7]. This paper illustrates the isolation and structure revelation of a novel flavonoid glycoside (1) from the aereal parts of S. denticulata with the help of modern spectroscopic methods.…”

Isolation and characterization of a new flavone diglucoside from Salix denticulata

“…This species is occasionally used as a traditional medicine in India. The previous phytochemical research on Salix genus showed the presence of phenolics [4], condensed tannins [5], catechins [6], flavonols [7], and diterpenes [8]. As part of the research on medicinal plants of Garhwal Himalaya, we herein reported the isolation and characterization of a new flavonoid diglucoside along with four known flavonoids, luteolin [9], isoquercetin [10], catechin [11], and diosmetin [12], from the ethanolic extract of leaves of Salix denticulata.…”