Two new germacranolides from Magnolia grandiflora.

abstract：:Two new dammarane-type triterpenoid saponins, namely ginsenoside Rk6 (1) and ginsenoside-Rh22 (2), were isolated from notoginseng medicinal fungal substance. The structures of 1 and 2 were established as 3β,6α,12β,26-tetrahydroxydammar-20(21),24(25)(E)-diene-6-O-β-D-glucopyranoside and 3β,6α, 20(S)-trihydroxy-12(R),23...

journal_title：Journal of Asian natural products research

authors： Xu W,Liu X,Liu XL,Jia AL,Wang XW,Qiu ZD

更新日期：2016-12-01 00:00:00

abstract：:Three new compounds (1-3), named dasycarine G (1), dasycarether (2), and dasycarester (3), along with seven known compounds (4-10) obtained from the genus Dictamnus for the first time, were isolated from the root bark of Dictamnus dasycarpus. Their structures were elucidated on the basis of spectroscopic data (UV, IR,...

journal_title：Journal of Asian natural products research

authors： Gao P,Wang L,Zhao L,Zhang C,Zeng KW,Zhao MB,Zhang QY,Jiang Y,Tu PF,Guo XY

更新日期：2020-08-01 00:00:00

abstract：:Nine new fatty acid derivatives, including seven methoxylated (1, 2, and 4-8) and two hydroxylated (3 and 9) fatty acids, have been isolated from the ethanol extract of the stem bark of Fraxinus sieboldiana. Their structures were determined by spectroscopic methods including IR, MS, 1D, and 2D NMR experiments. The 3- ...

journal_title：Journal of Asian natural products research

authors： Lin S,Zhang YL,Liu MT,Zi JC,Gan ML,Song WX,Fan XN,Wang SJ,Yang YC,Shi JG

更新日期：2012-01-01 00:00:00

abstract：:Phytochemical investigation on the leaves of Rabdosia serra led to the isolation of two new abietane diterpenoids, raserranes A (1) and B (2), and four known phenylpropanoids (3-6). Their structures were determined by spectroscopic data. Compound 1 represented the rare examples of abietane diterpenoids featuring a 16-...

journal_title：Journal of Asian natural products research

authors： Liu GL,Xu W,Liu XJ,Yan XL,Chen J

更新日期：2020-01-01 00:00:00

abstract：:Two new lignan glycosides forsythiayanoside A (1) and forsythiayanoside B (2), one new stereoisomer of lignan glycoside (+)-8-hydroxyepipinoresinol-4-O-β-D-glucopyranoside (3), together with seven known compounds (4-10), were isolated from the fruits of Forsythia suspense (Thunb.) Vahl. Compounds 4 and 10 were isolate...

journal_title：Journal of Asian natural products research

authors： Yan XJ,Peng Y,Liu ZX,Wen J,Liu QB,Li LZ,Song SJ

更新日期：2014-01-01 00:00:00

abstract：:Phytochemical investigations of the whole plant of Stachys parviflora (Lamiaceae) resulted in the isolation of two new phenethyl alcohol glycosides. The structures of the new compounds named parviflorosides A and B were established as 2-(3,4-dihydroxyphenyl)-ethyl-O-alpha-L-rhamnopyranosyl-(1 --> 2)-4-O-E-caffeoyl-bet...

journal_title：Journal of Asian natural products research

authors： Ahmad VU,Arshad S,Bader S,Ahmed A,Iqbal S,Tareen RB

更新日期：2006-01-01 00:00:00

abstract：:During the process of icogenin analog research, we obtained two cytotoxic steroids: compound 4 and compound 6 casually. Their in vitro antitumor activities were tested by the standard MTT assay. The results disclosed that compound 4 (IC50 = 3.65-6.90 μM) showed potential antitumor activities against HELA, KB cell line...

journal_title：Journal of Asian natural products research

authors： Guan YY,Li SZ,Lei PS

更新日期：2017-05-01 00:00:00

abstract：:A phytochemical study on the seeds of Cassia obtusifolia was carried out, which finally led to obtain two naphthalenes (1 and 2), two naphthopyrans (3 and 4) and twelve anthraquinones (5-16). The structures of all compounds were established mainly by NMR and MS experiments as well as the necessary chemical evidence. A...

journal_title：Journal of Asian natural products research

authors： Pang X,Li NN,Yu HS,Kang LP,Yu HY,Song XB,Fan GW,Han LF

更新日期：2019-10-01 00:00:00

abstract：:The protective effect of rhein lysinate (RHL) on Alzheimer's disease (AD) was explored in senescence-accelerated mouse prone-8 (SAMP8) mice. SAMP8 mice without treatment were used as the AD-positive control, and senescence-accelerated-resistant mice were used as the AD-negative control. In this study, 4-month-old male...

journal_title：Journal of Asian natural products research

authors： Liu J,Hu G,Xu R,Qiao Y,Wu HP,Ding X,Duan P,Tu P,Lin YJ

更新日期：2013-07-01 00:00:00

abstract：:A chemical investigation of the endemic relict shrub Tetraena mongolica led to the isolation of four new triterpenes: 11α,12α:13β,28-diepoxyoleanane-3β-yl trans-caffeate (1), 3β-hydroxy-11α,12α-epoxyoleanane-28-al (2), olean-11-en-28-al-3β-yl trans-caffeate (3), and 28-acetoxy-olean-12-en-3β-yl trans-caffeate (4). The...

journal_title：Journal of Asian natural products research

authors： Tang SA,Ding LL,Zhai HY,Qin N,Duan HQ

更新日期：2012-01-01 00:00:00

abstract：:Bioassay-guided fractionation of the ethanolic extract of Senecio scandens led to the isolation of four new compounds 4, 5, 7, and 8, along with four known jacaranone analogs (1, 2, 3, 6). Their structures were elucidated on the basis of spectral and chemical evidence. Compound 7 was obtained as a tautomeric mixture o...

journal_title：Journal of Asian natural products research

authors： Tian XY,Wang YH,Yang QY,Yu SS,Fang WS

更新日期：2009-01-01 00:00:00

abstract：:Three new xanthones, 1,3-dihydroxy-2,5,6,7-tetramethoxyxanthone (1), 3-hydroxy-1,2,5,6,7-pentamethoxyxanthone (2), and 3,8-dihydroxy-1,2,6-trimethoxyxanthone (3), together with two known compounds were isolated from the roots of Polygala japonica Houtt. Their structures were determined on the basis of spectroscopic da...

journal_title：Journal of Asian natural products research

authors： Xue QC,Li CJ,Zuo L,Yang JZ,Zhang DM

更新日期：2009-01-01 00:00:00

abstract：:Glycyrrhetinic acid (GA) is an active component of licorice root that has long been used as a herbal medicine for the treatment of peptic ulcer, hepatitis, and pulmonary and skin diseases in Asia and Europe. In this study, we analyzed the effect of GA extracted from Glycyrrhiza uralensis Fisch. on the expression of To...

journal_title：Journal of Asian natural products research

authors： Peng LN,Li L,Qiu YF,Miao JH,Gao XQ,Zhou Y,Shi ZX,Xu YL,Shao DH,Wei JC,Ma ZY

更新日期：2011-10-01 00:00:00

abstract：:Two new monoterpenoid glycosides, α-(E)-acaridiol 8-O-β-d-glucopyranoside (1) and α-(E)-acaridiol 9-O-β-d-glucopyranoside (2), as well as a new thiophen, 2-acetyl-3-hydroxy-5-(prop-1-ynyl)thiophen 3-O-β-d-glucopyranoside (3), were isolated from the roots of Eupatorium chinense. Their structures were determined on the ...

journal_title：Journal of Asian natural products research

authors： Wang WJ,Wang Y,Zhang QW,Zhang XQ,Yang TT,Dai Y,Wang L,Zhang LH,Ye WC

更新日期：2011-09-01 00:00:00

abstract：:Barlericin, the new neolignan diglycoside, has been isolated from the n-butanol soluble sub-fraction of Barleria acanthoides along with dehydrodiconiferyl alcohol 12-O-beta-D-glucopyranoside (2), reported for the first time from the genus Barleria. Their structures have been assigned on the basis of spectral studies. ...

journal_title：Journal of Asian natural products research

authors： Karim A,Noor AT,Malik A

更新日期：2010-08-01 00:00:00

abstract：:Four new oleanane type saponins, monepalosides G-J (1-4), were isolated from the water-soluble part of the whole plant of Morina nepalensis var. alba Hand-Mazz. On the basis of chemical and spectroscopic evidence, their structures were determined as 3-O-alpha-L-arabinopyranosyl-(1 --> 3)-alpha-L-arabinopyranosyl olean...

journal_title：Journal of Asian natural products research

authors： Teng RW,Xie HY,Liu XK,Wang DZ,Yang CR

更新日期：2003-06-01 00:00:00

abstract：:Two new 3,4-seco-lanostane-type triterpenes, named as 15α-hydroxy-3,4-seco-lanosta-4(28),8,24-triene-3,21-dioic acid (1), 5α-hydroxy-3,4-seco-lanosta-4(28),8,24-triene-3,21-dioic acid 3-methyl ester (2), and one new lanostane triterpene 15α-acetoxylhydroxytrametenolic acid (3) together with a known one versisponic aci...

journal_title：Journal of Asian natural products research

authors： Yin X,Li ZH,Li Y,Feng T,Liu JK

更新日期：2015-01-01 00:00:00

abstract：:Four types of piscidinol A derivatives were synthesized and evaluated their ability to inhibit HIV-1 protease to understand their structure-activity relationships. Of these tirucallane-type triterpene derivatives, an A-seco derivative (1b) moderately inhibited human immunodeficiency virus (HIV) protease (IC50 38.2 μM)...

journal_title：Journal of Asian natural products research

authors： Wei Y,Ma CM,Jiang TB,Du J,Zhou X,Liu GQ,Hattori M

更新日期：2015-01-01 00:00:00

abstract：:A new p-coumaroylated santalane-type sesquiterpenoid, 8-p-coumaroyl-α-santalene (1), a new p-coumaroylated oplopanane-type sesquiterpenoid, 8-β-p-coumaroyl-oplopanone (2), and three known p-coumaroylated humulene-type sesquiterpenoids (3-5) were isolated from the ethanol extract of the whole herbs of Pilea cavaleriei....

journal_title：Journal of Asian natural products research

authors： Ren HC,Zhang J,Liang H

更新日期：2018-02-01 00:00:00

abstract：:Microbial transformation of oleanolic acid (1) was carried out. Six transformed products (2-7) from 1 by Alternaria longipes and three transformed products (8-10) from 1 by Penicillium adametzi were isolated. Their structures were elucidated as 2α,3α,19α-trihydroxy-ursolic acid-28-O-β-d-glucopyranoside (2), 2α,3β,19α-...

journal_title：Journal of Asian natural products research

authors： Liu DL,Liu Y,Qiu F,Gao Y,Zhang JZ

更新日期：2011-02-01 00:00:00

abstract：:Four new oleanane-type triterpenoid saponins, cyclamiretin A 3beta-O-alpha-L-rhamnopyranosyl-(1 --> 3)-[beta-D-xylopyranosyl-(1 --> 2)]-beta-D-glucopyranosyl-(1 --> 4)-[beta-D-glucopyranosyl-(1 --> 2)]-alpha-L-arabinopyranoside (1), cyclamiretin A 3beta-O-alpha-L-rhamnopyranosyl-(1 --> 3)-[beta-D-glucopyranosyl-(1 -->...

journal_title：Journal of Asian natural products research

authors： Wen P,Zhang XM,Yang Z,Wang NL,Yao XS

更新日期：2008-09-01 00:00:00

abstract：:Two new dammarane-type triterpene saponins were isolated from the red American ginseng. The new saponins were named as pseudoginsenoside G(1) and pseudoginsenoside G(2). Their structures were elucidated by the combined analysis of NMR and mass spectrometry as 3-O-[β-d-glucopyranosyl-(1 → 2)-β-d-glucopyranosyl]-dammar-...

journal_title：Journal of Asian natural products research

authors： Liu JP,Lu D,Li PY

更新日期：2011-03-01 00:00:00

abstract：:A new cerebroside, asperiamide A, and adenosine were produced from a marine fungus, identified as Asperillus sp., collected in the Mei Zhou Gulf, China. Two-dimensional NMR methods, FAB-MS, were used to established the structure of the new compound. ...

journal_title：Journal of Asian natural products research

authors： Ouyang MA,Liu R,Kuo YH

更新日期：2005-10-01 00:00:00

abstract：:A new selaginellin derivative, selaginellin M (1), together with one known compound, selaginellin E (2), was isolated from Selaginella pulvinata. The structure of the new compound was elucidated and named as (R,S)-4-((4'-hydroxy-4-((2-hydroxyethoxy)methyl))-3-((4-hydroxyphenyl)ethynyl)biphenyl-2-yl)(4-hydroxyphenyl)me...

journal_title：Journal of Asian natural products research

authors： Xu KP,Zou H,Liu GR,Long HP,Li J,Li FS,Zou ZX,Kuang JW,Xie X,Tan GS

更新日期：2011-10-01 00:00:00

abstract：:Two new glycosides named as ternatoside A (1) and ternatoside B (2), with four known constituents sternbin (3), methylparaben (4), 4-O-D-glucopyranosyl-p-coumaric acid (5) and linocaffein (6) were isolated from the roots of Ranunculus ternatus, The structures of new compounds were determined by 1D and 2D NMR, MS techn...

journal_title：Journal of Asian natural products research

authors： Tian JK,Sun F,Cheng YY

更新日期：2006-01-01 00:00:00

abstract：:Marine sponges are currently one of the richest sources of anticancer active compounds found in the marine ecosystems. More than 5300 different known metabolites are from sponges and their associated microorganisms. To survive in the complicated marine environment, most of the sponge species have evolved chemical mean...

journal_title：Journal of Asian natural products research

authors： Ye J,Zhou F,Al-Kareef AM,Wang H

更新日期：2015-01-01 00:00:00

abstract：:Three new iridoids, named artselaenin I, II and III, were isolated from the whole plants of Pedicularis artselaeri, along with 11 known compounds, 8-epiloganic acid, 7-deoxy-8-epiloganic acid, plantarenaloside, mussaenoside, lariciresinol-4-O-beta-D-glucoside, lariciresinol-4'-O-beta-D-glucoside, alaschaniosideA, cirt...

journal_title：Journal of Asian natural products research

authors： Su BN,Zhai JJ,Jia ZJ

更新日期：1998-01-01 00:00:00

abstract：:A palmatine derivative, named 11-hydroxypalmatine (4), has been isolated from the tubers of Stephania glabra, together with three known alkaloids, palmatine (1), dehydrocorydalmine (2), and stepharanine (3). The structures of the compounds were elucidated by means of spectroscopic analysis including 2D NMR experiments...

journal_title：Journal of Asian natural products research

authors： Semwal DK,Rawat U,Semwal R,Singh R,Singh GJ

更新日期：2010-02-01 00:00:00

abstract：:An investigation of CH(2)Cl(2) and EtOH extracts of Trifolium resupinatum L. var. microcephalum Zoh. has led to the isolation of two new compounds characterized as 4,15-dimethyl-2-(1,2-dihydroxyethyl)-hexadecene (1) and 1-undecene-1-O-beta-2',3',4',6'-tetraacetyl glucopyranoside (2a). Their structures were established...

journal_title：Journal of Asian natural products research

authors： Sabudak T,Isik E,Oksuz S

更新日期：2008-11-01 00:00:00

abstract：:One new naturally occurring 7-membered 2,5-dioxopiperazine alkaloid named (+)-cyclopenol (1), along with nine known compounds including viridicatol (2), 3-(dimethylaminomethyl)-1-(1,1-dimethyl-2-propenyl)indole (3), anacine (4), aurantiomide C (5), viridicatin (6), 3-O-methylviridicatin (7), verrucosidin (8), ergoster...

journal_title：Journal of Asian natural products research

authors： Li J,Wang J,Jiang CS,Li G,Guo YW

更新日期：2014-01-01 00:00:00