New dibenz[b, f]oxepins from Cercis chinensis Bunge.

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：:Our current marine natural product program investigated the second metabolites of an actinomycete Streptomyces cavourensis YY01-17 originating from the Antarctic ecological niche to discover potential antitumor chemical entities. Two new compounds, along with a known compound, were isolated from the ethyl acetate extr...

journal_title：Journal of Asian natural products research

authors： Su SS,Tian L,Chen G,Li ZQ,Xu WF,Pei YH

更新日期：2013-01-01 00:00:00

abstract：:Methyl tortuoate D (1), together with five other known related bis-cembranoids, was isolated from Hainan soft coral Sarcophyton tortuosum. The structure of methyl tortuoate D (1a), firstly isolated and reported by Li et al. from the title organism, was corrected as 1 by an extensive analysis of its one-dimensional and...

journal_title：Journal of Asian natural products research

authors： Li YF,He LL,Liu HL,Liang LF,Zhang HB,Guo YW

更新日期：2013-01-01 00:00:00

abstract：:Enterovirus 71 (EV71) is a huge threat to the worldwide public health and there is no approved antiviral drug for EV71-induced disease therapy. Corydaline exists antiallergic and antinociceptive activities, but the anti-EV71 activity of corydaline is still not reported. In this study, corydaline could suppress the exp...

journal_title：Journal of Asian natural products research

authors： Wang HQ,Hu J,Yan HY,Wu S,Li YH

更新日期：2017-11-01 00:00:00

abstract：:Two new benzo[de]isoquinoline derivatives, 4-phenyl-benzo[de]isoquinoline-1,3-dione (1) and 4-(4-hydroxyphenyl)-benzo[de]isoquinoline-1,3-dione (2), were isolated from 70% ethanol extract of the rhizomes of Musa basjoo. Their chemical structures were elucidated by HRESIMS, 1 D and 2 D spectra. ...

journal_title：Journal of Asian natural products research

authors： Ma X,Jiang L,Zhu MH,Liu CH,Wang GC,Li YT,Liu T,Li YJ

更新日期：2021-01-19 00:00:00

abstract：:Seven new C14-polyacetylene glucosides codonopilodiynosides A-G (1-7) were isolated from an aqueous extract of the Codonopsis pilosula roots. Their structures were determined by spectroscopic and chemical methods as (-)-(5S,6E,12E)-tetradeca-6,12-dien-8,10-diyn-1,5,14-triol 5-O-β-D-glucopyranoside (1), (-)-(5S,6E,12E)...

journal_title：Journal of Asian natural products research

authors： Jiang YP,Liu YF,Guo QL,Jiang ZB,Xu CB,Zhu CG,Yang YC,Lin S,Shi JG

更新日期：2015-01-01 00:00:00

abstract：:In this paper, the structure-activity relationships of chemically modified uronic acid polymer fragments from brown algae with regard to their antioxidant effects on H2O2-damaged lymphocyte were studied. The results indicated that the most potent antioxidant activity was obtained from the sulfated polysaccharide with ...

journal_title：Journal of Asian natural products research

authors： Hu JF,Gen MY,Zhang JT,Jiang HD

更新日期：2001-01-01 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：:Two new constituents with a novel basic skeleton were isolated from Erigeron breviscapus. On the basis of chemical and spectroscopic evidences, the structures of the new compounds were elucidated as 1R,3R-dihydroxy-4S,5R-dicaffeoyloxy cyclohexane carboxylic acid methyl ester (V), 1,4-dihydroxy-3R,5R-dicaffeoyloxy cycl...

journal_title：Journal of Asian natural products research

authors： Zhang WD,Tam HT,Chen WS,Kong DY,Li HT,Wang YH,Fouraste I

更新日期：2000-01-01 00:00:00

abstract：:A new ceramide urticamide (1), two new secolignans urticalactones I (2) and Ⅱ (3), and a new flavonoid glycoside urticaside (4), together with 15 known compounds (4-19), were isolated from the leaves of Urtica fissa, a folk medicine for rheumatism arthritis in China. The active evaluation results showed that 1, 2, 3, ...

journal_title：Journal of Asian natural products research

authors： Wang MY,Yang Y,Zhou XY,Wang SS,Duan SX,Li XB

更新日期：2018-08-01 00:00:00

abstract：:A new denitroaristolochic acid, demethylaristofolin C (1), together with six known alkaloids, crebanine N-oxide (2), (-)-sukhodianine-β-N-oxide (3), palmatine (4), corydalmine (5), dehydrocorydalmine (6), and corynoxidine (7), was isolated from the tubers of Stephania succifera. The structure of demethylaristofolin C ...

journal_title：Journal of Asian natural products research

authors： Yang DL,Mei WL,Zeng YB,Guo ZK,Wei DJ,Liu SB,Wang QH,Dai HF

更新日期：2013-01-01 00:00:00

abstract：:A new diterpenoid, 17-methyl-8, 13-labdadien-15, 16-olid-19-oic acid methyl ester (1), along with two known compounds 2 and 3, were isolated from the leaves of Platycladus orientalis (L.) Franco. The structures were confirmed based on the analysis of HR-MS, 1D-NMR, and 2D-NMR spectra and the configuration of 1 was con...

journal_title：Journal of Asian natural products research

authors： Shi JX,Li YH,Wang X,Qin YQ,Zhang CY,Zhang X,Li CR,An MQ,Li LR,Lu SH,Huang J

更新日期：2018-11-01 00:00:00

abstract：:Gamboge is a dry resin secreted from Garcinia hanburryi, and gambogenic acid (GNA) is one of the main active compounds of gamboge. We have previously demonstrated the anticancer activity of GNA in A549 cells and pointed out its potential effects in anticancer therapies. Previous studies reported that GNA induced apopt...

journal_title：Journal of Asian natural products research

authors： Cheng H,Su JJ,Peng JY,Wang M,Wang XC,Yan FG,Wang XS,Li QL

更新日期：2011-10-01 00:00:00

abstract：:Tripterygium wilfordii Hook. f. is the traditional medicinal plants in China. Triptolide, wilforgine, and wilforine are the bioactive compounds in T. wilfordii. In this study, the contents of three metabolites and transcription levels of 21 genes involved in three metabolites biosynthesis in T. wilfordii were examined...

journal_title：Journal of Asian natural products research

authors： Zhang J,Huo YB,Liu Y,Feng JT,Ma ZQ,Zhu CS,Zhang X

更新日期：2017-08-01 00:00:00

abstract：:Podophyllotoxin and its synthetic derivatives are valuable medicinal agents that have antitumor, insecticidal, and antifungal properties. We previously synthesized a deoxypodophyllotoxin derivative with an opened D-ring (DPD) exhibiting potent insecticidal activity. This article was firstly performed to identify the c...

journal_title：Journal of Asian natural products research

authors： Chen C,Wang CC,Wang Z,Geng WY,Xu H,Song XM,Luo DQ

更新日期：2016-05-01 00:00:00

abstract：:Two new xanthone O-glycosides, polyhongkongenosides A (1) and B (2), together with four known xanthone glycosides, were isolated from the herbs of Polygala hongkongensis Hemsl. Their structures were elucidated on the basis of UV, IR, NMR, and MS spectral data. The antioxidant in vitro activities of 1-6 were determined...

journal_title：Journal of Asian natural products research

authors： Wu JF,Chen SB,Gao JC,Song HL,Wu LJ,Chen SL,Tu PF

更新日期：2008-07-01 00:00:00

abstract：:Five new phenolic glycosides, 2-hydroxy-(2'E)-prenyl benzoate-2,4'-di-O-β-D-glucopyranoside (1), 2-hydroxy-(2'E)-prenyl benzoate-2-O-α-L-arabinopyranosyl-(1 → 6)-β-D-glucopyranoside (2), 4-methylphenol-1-O-α-L-rhamnopyranosyl-(1 → 6)-β-D-glucopyranoside (3), 4-methylphenol-1-O-α-L-arabinopyranosyl-(1 → 6)-β-D-glucopyr...

journal_title：Journal of Asian natural products research

authors： Zhou Y,Ren HC,Qin RD,Zhang QY,Liang H

更新日期：2014-01-01 00:00:00

abstract：:Two new C21 steroidal glycosides were isolated from Cynanchum wallichii Wight. Their structures were elucidated as caudatin-3-O-β-d-glucopyranosyl-(1 → 4)-β-d-oleandropyranosyl-(1 → 4)-β-d-cymaropyranosyl-(1 → 4)-β-d-digitoxopyranoside (1) and caudatin-3-O-β-d-glucopyranosyl-(1 → 4)-β-d-cymaropyranosyl-(1 → 4)-β-d-ole...

journal_title：Journal of Asian natural products research

authors： Wang D,Pan WH,Bao YR,Yang XX,Meng XS

更新日期：2014-01-01 00:00:00

abstract：:Isolation and structure elucidation of two new compounds, kakispyrone (1) and kakisaponin A (2), together with 11 known compounds, from the leaves of Diospyros kaki L. are described. Their cytotoxic effects against several cancer cell lines (A549, HepG2 and HT29) are also reported. ...

journal_title：Journal of Asian natural products research

authors： Chen G,Xue J,Xu SX,Zhang RQ

更新日期：2007-04-01 00:00:00

abstract：:A novel alkaloid, hupcrispatine (1), has been isolated from the unique Chinese species Huperzia crispate Ching. The structure of hupcrispatine has been elucidated as 9-amino-6-methyl-3-quinolone on the basis of spectral evidence. ...

journal_title：Journal of Asian natural products research

authors： Pei G,He GX,Du FL,Jiang DS

更新日期：2008-09-01 00:00:00

abstract：:Four new minor taxanes (1-4) have been isolated from Ts-19 cell cultures of Taxus chinensis together with five known taxanes (5-9) by silica gel chromatography combined with semi-preparative HPLC chromatography. On the basis of the analyses of the chemical and spectroscopic (IR, MS, 1D, and 2D NMR) data, the structure...

journal_title：Journal of Asian natural products research

authors： Xie D,Jia HT,Zhang Y,Zou JH,Yin DL,Chen XG,Yan YN,Dai JG

更新日期：2009-06-01 00:00:00

abstract：:Fasciospyrinadine (1), a novel sesquiterpene pyridine alkaloid with a previously unreported skeleton featuring a monocyclicfarnesane moiety attached to a 3-methylenepyridine residue, was isolated from the sponge Fasciospongia sp. from Weizhou Island, Guangxi Autonomous Region. The structure and the relative stereochem...

journal_title：Journal of Asian natural products research

authors： Zhao ZB,Sun JZ,Mao SC,Guo YW

更新日期：2013-01-01 00:00:00

abstract：:The relationship between the immunological activities and their surface activities of octadecanoyl acetal sodium sulphite series containing different numbers of double bonds (HOU-C18:n; n = 1, Delta9; n = 2, Delta9,12; n = 3, Delta9,12,15) were studied. The results showed that HOU-C18:n were able to increase the carbo...

journal_title：Journal of Asian natural products research

authors： Yuan LJ,Ye XL,Li XG,He HM

更新日期：2007-01-01 00:00:00

abstract：:Biotransformation of podophyllotoxin (PT) by several microbial species has been investigated. Among the fungi tested, it was found that Penicillium strains can isomerize PT to picropodophyllin (PPT) in 8% yield and other strains also transform the substrate into the same product but with lower yield. ...

journal_title：Journal of Asian natural products research

authors： Guo HZ,Guo DA,Fei XY,Cui YJ,Zheng JH

更新日期：1998-01-01 00:00:00

abstract：:Five new indole alkaloid glucosides named isatindigotindolosides A-E (1-5), along with three known analogs (6-8), were isolated from an aqueous extract of the Isatis indigotica roots. Their structures including the absolute configurations were determined based on comprehensive spectroscopic data analysis, combined wit...

journal_title：Journal of Asian natural products research

authors： Liu YF,Chen MH,Lin S,Li YH,Zhang D,Jiang JD,Shi JG

更新日期：2016-01-01 00:00:00

abstract：:A polysaccharide Astragalus polysaccharide (APS) was obtained from the boiling water extract of Astragalus membranaceus (Fisch.) Bge. var. mongholicus (Bge.) Hsiao. The results of gas chromatography (GC) indicated that APS consisted of l-rhamnose (l-Rha), d-xylose (d-Xyl), d-glucose (d-Glc), and d-galactose (d-Gal) in...

journal_title：Journal of Asian natural products research

authors： Fu J,Huang L,Zhang H,Yang S,Chen S

更新日期：2013-01-01 00:00:00

abstract：:A series of aromatic or long-chain chrysin derivatives (1-10) were synthesized by esterification of chrysin and acyl chloride. The chemical structures of these compounds were determined by mass spectrum (MS), 1H NMR, and 13C NMR spectra. Though aromatic chrysin derivatives (1-9) with a rigid structure were hard to dis...

journal_title：Journal of Asian natural products research

authors： Chen N,Wang R,Lu LJ,Yan LJ,Bai LL,Fu Y,Wang Y,Peng DQ,Chen X,Wang CH,Li J,Zhao K

更新日期：2020-05-01 00:00:00

abstract：:Three new dammarane-type triterpene ginsenosides, together with six known ginsenosides, were isolated from the leaves of Panax ginseng C.A. Meyer. The new saponins were named as ginsenoside Rh₁₁, ginsenoside Rh₁₂, and ginsenoside Rh₁₃. Their structures were elucidated as (20S)-3β,6α,12β,20-tetrahydroxydammara-25-ene-2...

journal_title：Journal of Asian natural products research

authors： Liu GY,Li XW,Wang NB,Zhou HY,Wei W,Gui MY,Yang B,Jin YR

更新日期：2010-10-01 00:00:00

abstract：:A new coumestan named bavacoumestan D (1), together with five known compounds (2-6), was isolated from EtOAc-soluble extract of seeds of Psoralea corylifolia. Their structures were elucidated on the basis of spectroscopic and physico-chemical analyses. All compounds were evaluated for in vitro inhibitory activity agai...

journal_title：Journal of Asian natural products research

authors： Chai MY

更新日期：2020-03-01 00:00:00

abstract：:A total of 15 novel-substituted 3-(benzylsulfanyl)-1H-1,2,4-triazol-5-ylamine and 10 novel-substituted 3-benzylmercapto-1,2,4-triazol derivatives were synthesized based on the natural product phenazine-1-carboxylic acid (PCA). Their structures were confirmed by 1H-NMR, 13C-NMR, HRMS, and X-ray. Most substituted 3-benz...

journal_title：Journal of Asian natural products research

authors： Li XJ,Zhang W,Zhao CN,Wu QL,Li JK,Xu ZH

更新日期：2020-05-07 00:00:00