New iridoids from Pedicularis artselaeri.

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：: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：:A new bioactive flavone glycoside 1 [mp 252-254 degrees C, C28H32O16, [M]+ 624 (EIMS)] was isolated from the acetone soluble fraction of the defatted seeds of Cassia fistula (Linn.). It was characterized as a new bioactive flavone glycoside 5,3',4'-tri-hydroxy-6-methoxy-7-O-alpha-L-rhamnopyranosyl-(1 --> 2)-O-beta-D-g...

journal_title：Journal of Asian natural products research

authors： Yadava RN,Verma V

更新日期：2003-03-01 00:00:00

abstract：:Ophiopogon japonicus polysaccharide (FOJ-5) from Radix ophiopogonis has shown anti-myocardial ischemic action in vitro and in vivo in our previous studies. In order to clarify the influence of chemical modifications on the action, a series of sulfated FOJ-5 (FOJ-5-S) with different substitution degrees were prepared a...

journal_title：Journal of Asian natural products research

authors： Zheng Q,Feng Y,Xu DS,Lin X,Chen YZ

更新日期：2009-01-01 00:00:00

abstract：:We present in this paper the efficient four-component one-pot synthesis of a fully protected hexaarabinogalactan 2 with di-branched structure by using D-thiogalactopyranoside 3,6-diol 3 as the central glycosylating agent. After global deprotection, 2 was converted into the 3-aminopropyl linker-containing free oligosac...

journal_title：Journal of Asian natural products research

authors： Huang H,Han L,Lan YM,Zhang LL

更新日期：2014-01-01 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：:Pfaffia paniculata is a commercialized dietary supplement used as the substitute for the Asian ginseng in Brazil. We conducted the systematic isolation of the EtOAc fraction with anti-inflammatory effect and two new triterpenoids, along with 26 known compounds were characterized by means of MS and NMR analysis. Intere...

journal_title：Journal of Asian natural products research

authors： Lian L,Feng Y,Li YW,Bei B,Tang YT,Wang H,Feng QM,Chen G

更新日期：2019-05-01 00:00:00

abstract：:(+)-Lariciresinol 3a-acetate [(+)-(3S)-acetyloxymethyl-(2S)-(4-hydroxy-3-methoxyphenyl)-(4R)-[(4-hydroxy-3-methoxyphenyl)methyl]tetrahydrofuran] (1), a metabolite of A. elaeagnoidea was synthesized starting from (-)-lariciresinol (2) in three steps with an overall yield of 66%. ...

journal_title：Journal of Asian natural products research

authors： Rajasekhar D,Subbaraju GV

更新日期：2000-01-01 00:00:00

abstract：:Irritant and cytotoxic potentiality of six coumarins, isolated for the first time from the roots of Angelica glauca identified as 5,6,7-trimethoxycoumarin, 6-methoxy-7,8-methylenedioxycoumarin, bergapten, decursinol angelate, decursin, and nodakenetin, were investigated. The irritant potential was explored by open mou...

journal_title：Journal of Asian natural products research

authors： Saeed MA,Sabir AW

更新日期：2008-01-01 00:00:00

abstract：:A new 3,4-seco-labdane diterpenoid, 3,4-seco-12R,13S-dihydroxy-4(18),8(17),14(15)-labdatrien-3-oic acid (1), was isolated from the leaves of Callicarpa nudiflora. The structure of 1 was elucidated by 1D NMR, 2D NMR and HRESIMS data, and confirmed by single-crystal X-ray diffraction analysis. 3,4-seco-12R,13S-Dihydroxy...

journal_title：Journal of Asian natural products research

authors： Zhang L,Liu MS,Huang J,Li GY,Zhang C,Dong L,Zhang K,Wang JH

更新日期：2014-01-01 00:00:00

abstract：:Andrographolide, a major bioactive compound isolated from Andrographis paniculata (Burm. F.) Nees, was evaluated for its effects on the hOAT1 membrane transporter. Substrate determination and inhibition of hOAT1-mediated uptake transport assay was carried out using recombinant CHO-hOAT1 cells. The results showed that ...

journal_title：Journal of Asian natural products research

authors： Chong YM,Kaur G,Tan ML

更新日期：2019-08-01 00:00:00

abstract：:Two new metabolites, pyrenocine J (1) and pyrenochaetic acid D (2), together with two known metabolites, pyrenocine A (3) and pyrenochaetic acid A (4), were isolated from a soil fungus, Curvularia affinis strain HS-FG-196. Their structures were established by extensive spectroscopic analysis. Compound 1 showed cytotox...

journal_title：Journal of Asian natural products research

authors： Zhang H,Mao LL,Qian PT,Shan WG,Wang JD,Bai H

更新日期：2012-01-01 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 nitrogen-containing derivatives of ginkgolide B were synthesized to improve the physical-chemical properties and bioavailability of ginkgolide B. The reaction was accomplished with the nitrogen atom as neighboring group participating in the replacement reaction. All of the four compounds were proved to have excel...

journal_title：Journal of Asian natural products research

authors： Guo CJ,Ren Y,Qin YL,Zhang Q

更新日期：2008-09-01 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：: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

abstract：:Six thiophenes were isolated and purified from ethanol extract of the roots of Echinops latifolius Tausch. Their structures were identified on the basis of spectral data. Among them, 5-(3-hydroxmethyl-3-isovaleroyloxyprop-1-ynyl)-2,2'-bithiophene (6) is a new compound, and 5-(3-hydroxy-4-isovaleroyloxybut-1-ynyl)-2,2'...

journal_title：Journal of Asian natural products research

authors： Wang Y,Li X,Meng DL,Li ZL,Zhang P,Xu J

更新日期：2006-10-01 00:00:00

abstract：:Investigation of the constituents from the stem barks of Garcinia multiflora has yielded two new compounds, multiflorabiphenyl A (1) and 24-p-E-coumaroyl-tetracosanyl (E)-ferulate (2), along with 10 known compounds, friedelin (3), friedelan-3β-ol (4), α,β-amyrin (5), rheediachromenoxanthone (6), 1,7-dihydroxyxanthone ...

journal_title：Journal of Asian natural products research

authors： Jing WY,Jiang C,Ji F,Hua HM,Li ZL

更新日期：2013-11-01 00:00:00

abstract：:Two new bromophenols, (E)-3-(2,3-dibromo-4,5-dihydroxyphenyl)-2-methylpropenal (1) and 3-(2,3-dibromo-4,5-dihydroxyphenyl)-2-methyl-1-propanol (2), together with 11 known bromophenols (3-13), were isolated from the ethanolic extract of the brown alga Leathesia nana S. et G. Their structures have been elucidated by spe...

journal_title：Journal of Asian natural products research

authors： Xu XL,Fan X,Song FH,Zhao JL,Han LJ,Yang YC,Shi JG

更新日期：2004-09-01 00:00:00

abstract：:Three new triterpene saponins, ilekudinosides T-V (1-3), along with six known saponins were isolated from the 70% ethanolic extract of the leaves of Ilex kudingcha. The new saponins were characterized as 3-O-beta-d-glucopyranosyl-(1 --> 3)-[alpha-l-rhamnopyranosyl-(1 --> 2)]-alpha-l-arabinopyranosyl-3beta,19alpha-dihy...

journal_title：Journal of Asian natural products research

authors： Tang L,Jiang Y,Tian XM,Zhou SX,Tu PF

更新日期：2009-06-01 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 acylgluconic acids, trans-feruloylgluconic acid (1) and trans-caffeoylgluconic acid (2), together with three known compounds, myo-inositol (3), phthalic acid dibutyl ester (4), and wuzhuyuamide-I (5), were isolated from the water soluble part of the dried nearly ripe fruits of Evodia rutaecarpa (Juss.) Benth. ...

journal_title：Journal of Asian natural products research

authors： Zhao MY,Yang XW

更新日期：2008-07-01 00:00:00

abstract：:Eight tetranortriterpenoids (1-8) and two sesquiterpenoids (9 and 10) including two new compounds, cineracipadesin G (1) and 1β-hydroperoxy-6α-hydroxy-eudesm-4(15)-ene (9), were isolated from the EtOAc extract of branches of Cipadessa cinerascens. The structures of two new compounds were elucidated by 1D and 2D NMR an...

journal_title：Journal of Asian natural products research

authors： Fu LR,Ma QY,Huang SZ,Dai HF,Guo ZK,Yu ZF,Zhao YX

更新日期：2014-01-01 00:00:00

abstract：:A new diarylheptanoid, along with five known diarylheptanoids, was isolated from the rhizomes of Alpinia officinarum (Zingiberaceae). The structure of the new compound was determined to be trans,trans-1(3'-methoxy-4'-hydroxyphenyl)-7-phenyl-5-ol-4,6-dien-3-heptanone on the basis of spectral and chemical evidence. ...

journal_title：Journal of Asian natural products research

authors： An N,Xu LZ,Zou ZM,Yang SL

更新日期：2006-10-01 00:00:00

abstract：:Two new diterpenoid glycosides, fructusnoids D (1) and E (2), and two new monoterpenoid glycosides (3, 4), together with three known diterpenoid glycosides (5-7) and three known monoterpenoid glycosides (8-10), were isolated from the fruits of Xanthium chinense. Their structures were elucidated by spectrometric analys...

journal_title：Journal of Asian natural products research

authors： Cheng Y,Fu J,Chen L,Li LL,Qu J

更新日期：2019-03-01 00:00:00

abstract：:We present the synthesis of enantiomerically pure (S)-α-methyl-serine methyl ester hydrochloride from 2-methyl-3-((4-(trifluoromethyl)benzyl)oxy)propanal and di-p-chlorobenzyl azodicarboxylate via asymmetrically catalyzed amination with naphthylalanine derivative catalyst. The application of the organocatalyst of D-3-...

journal_title：Journal of Asian natural products research

authors： Xiao Q,Tang YF,Xie P

更新日期：2020-01-01 00:00:00

abstract：:Three new C(19)-diterpenoid alkaloids, umbrosumines A-C (1-3), and 11 known compounds (4-14) were isolated from the roots of Delphinium umbrosum. Their structures were elucidated on the basis of the spectroscopic data interpretation. ...

journal_title：Journal of Asian natural products research

authors： Chen FZ,Chen QH,Wang FP

更新日期：2010-06-01 00:00:00

abstract：:Ten (1-10) irritant and mild co-carcinogenic diterpene esters were isolated from the latex of Euphorbia cauducifolia L. using bioassay-guided countercurrent distribution and other chromatographic techniques. The isolated compounds were characterized on the basis of spectroscopic results and mass measurements. As an ou...

journal_title：Journal of Asian natural products research

authors： Baloch IB,Baloch MK

更新日期：2010-07-01 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：:A new sesquiterpene cacaroborin (1) was isolated from the roots of Cacalia roborowskii, together with three known ones, cinalbicol (2), isopetasin (3), and 3alpha-angeloyloxylactone (4). The structure of compound 1 was elucidated as 1beta,10alpha-dihydroxy-8alpha-methoxyeremophil-7(11)-en-8beta,12-olide on the basis o...

journal_title：Journal of Asian natural products research

authors： Zhang ZX,Fei DQ

更新日期：2009-11-01 00:00:00