Constituents from the roots of Semiaquilegia adoxoides

The isolation of griffonilide (1), lithospermoside (2) and magnoflorine (3) from the roots of Semiaquilegia adoxoides is reported.     

A new secoiridoid glycoside from Lonicera angustifolia

A new secoiridoid glycoside, 6'-O-beta-apiofuranosylsweroside (1), together with the known compounds sweroside, loganin, beta-sitosterol, oleanolic acid, ursolic acid and methyl-4-hydroxy benzoate have been identified from the leaves of Lonicera angustifolia. The structure of the new compound has been elucidated on the basis of spectroscopic and chemical evidence.     

A new iridoid glycoside from Linaria genestifolia

A new iridoid glycoside named genestifolioside (1) was isolated from the ethanol extract of Linaria genestifolia. Its structure was defined by spectral analysis.     

A new flavone glycoside from Centaurea furfuracea

A new flavone glycoside, hispidulin 7-O-methylglucuronide (1) has been isolated from the aerial part of Centaurea furfuracea.     

A new phenolic glycoside from Paeonia lactiflora

A new phenolic glycoside , 2-methoxy-5-(E)-propenyl-phenol-beta-vicianoside, was isolated from the root of Paeonia lactiflora. The structure of the new glycoside was elucidated by chemical and spectroscopic methods.     

A new chromone glycoside from Polygonum capitatum

A new chromone glycoside (1), 7-O-(6'-galloyl)-beta-D-glucopyranosyl-5-hydroxychromone was isolated from Polygonum capitatum.     

A new cycloartane glycoside from Camptosorus sibiricus

A new cycloartane glycoside was isolated from the whole herbs of Camptosorus sibiricus. By means of spectroscopic methods its structure was established as 3beta, 7beta, 24beta, 25, 30-pentahydroxycycloartane-24, 30-di-O-beta-D-glucopyranoside (1). proflixian@163.com     

A new stilbene glycoside from Elephantorrhiza goetzei.

A new stilbene glycoside, 5-methoxy-(E)-resveratrol 3-O-rutinoside (1) was isolated from the root bark of Elephantorrhiza goetzei, along with known compounds, namely gallic acid, (E)-resveratrol, (+/-)-catechin, (+/-)-gallocatechin and oleanene triterpenoids. The combined ethyl acetate-methanol extract exhibited high lethality against brine shrimp larvae (LC(50) 10.8 ppm) compared to the isolates, some of which were not active.     

A new acylated quercetin glycoside from Ranunculus lanuginosus

A new acylated quercetin glycoside, quercetin 3-O-(2-t-p-coumaroyl)-beta-D-glucopyranosyl-(1-->2)-beta-D-glucopyranoside-7-O-beta-D-glucopyranoside (1), together with the known 3-(3,4-dihydroxyphenyl)lactic acid (2) were isolated from Ranunculus lanuginosus leaves and identified on the basis of detailed spectral analysis, including 2D-NMR spectrometry and ESI-MS.     

A new ellagic acid glycoside from Paeonia delavayi

A new ellagic acid glycoside, 4'-O-methylellagic acid 4-O-beta-D-glucopyranoside (1), was isolated from the root cortex of Paeonia delavayi. The structure was elucidated on the basis of spectroscopic methods.     

A new triterpene glycoside from Centella erecta

A new (2α,3β)-23-sulphonyl-2,3-dihydroxyurs-12-en-28-oic acid O-α-l-rhamnopyranosyl-(1→4)-O-β-d-glucopyranosyl-(1→6)-O-β-d-glucopyranosyl ester (1) together with eighteen known compounds were isolated from Centella erecta (L.f.) Fern. Their structures were elucidated mainly by NMR and HRESIMS, as well as on comparison with the reported data.     

A new flavonol glycoside from Millettia speciosa

A new flavonol triglycoside, millettiaspecoside D, was isolated from the caulis of Millettia speciosa Champ. Its structure was elucidated on the basis of spectroscopic analysis.     

A new phenolic glycoside from Sorocea ilicifolia stem bark

A new phenolic glycoside, 3,4-dimethoxyphenyl-1-O-beta-d-apiofuranosyl (1-->2)-beta-d-glucopyranoside (1), was isolated from the acetone extract of the Sorocea ilicifolia stem bark, along with the known compounds, 3,4,5-trimethoxyphenyl-1-O-beta-apiofuranosyl (1-->6)-beta-d-glucopyranoside, benzyl-O-beta-d-apiofuranosyl (1-->2)-beta-d-glucopyranoside, sorocein A, mulberrofuran K, kuwanon J, sorocein B, chalcomoracin, and kuwanol E.     

A new flavonoid glycoside from the leaf of Cephalotaxus koreana

A new flavone glycoside, apigenin 5-O-alpha-L-rhamnopyranosyl-(1-->3)-beta-D-glucopyranoside (1), along with four known flavonol glycosides (2-5), were isolated from the leaf of Cephalotaxus koreana. The new glycoside 1 showed inhibitory activity in superoxide radical scavenging assay with IC(50) value of 13.0 microM, while it showed weak activity in 1,1-diphenyl-2-picrylhydrazyl (DPPH) free radical scavenging assay. Compounds 2-5 exhibited antioxidant activity in scavenging DPPH and superoxide radicals with IC(50) values ranging from 5.7 to 22.3 microM.     

A new phenolic glycoside from the roots of Lygodium japonicum

A new phenolic glycoside, 3,4-dihydroxybenzoic acid 4-O-(4'-O-methyl)-beta-D-glucopyranoside (1), was isolated from the roots of Lygodium japonicum. The structure was elucidated on the basis of spectroscopic methods.     

A new flavone glycoside from the fruits of Luffa cylindrica

The methyl ester of diosmetin 7-O-beta-D-glucuronide (1) was isolated from the fruits of Luffa cylindrica. Its structure was determined by spectroscopic methods.     

A new naphthalene glycoside from the roots of Smilax bockii

From the roots of Smilax bockii a new compound, 7-hydroxymethyl-1, 4, 5-trihydroxynaphthalene-4-O-beta-D-xylopyranosyl(1-->6)-beta-D-glucopyranoside, was isolated. The structure of the new compound was elucidated on the basis of spectroscopic methods.     

A new aromatic glycoside from the roots of Prunus armeniaca

A new aromatic glycoside, 4-O-glycosyloxy-2-hydroxy-6-methoxyacetophenone (1), has been isolated from the roots of Prunus armeniaca.     

A new flavone glycoside from the seeds of Tecoma undulata

The new flavonoid 5,7-dihydroxy-6-methoxyflavone 7-O-α-l-rhamnopyranoside (1) was isolated from the seeds of Tecoma undulata.