共查询到20条相似文献,搜索用时 31 毫秒
1.
LiHongHU JingYuLIANG 《中国化学快报》2005,16(6):783-785
A novel compound, named fortunate A, was isolated from the ethanol extract of the stem bark of Cryptomerica fortunei. Its structure was established on the basis of the spectral evidences including 1D and 2D NMR spectrum. 相似文献
2.
A New Triterpene from Cephalomappa sinensis 总被引:2,自引:0,他引:2
Wen Li MEI Yun Bao MA Shao Hua WU Hao Fu DAI Da Gang WU* Laboratory of Phytochemistry Kunming Institute of Botany Academia Sinica Kunming 《中国化学快报》2001,(6)
Cephalomappa sinensis (Chun et How) Kosterm belongs to the family Euphorbiaceae. It is distributed in southwest and west of Guangxi Zhung Autonomous Region1. Its fresh leaves are used as feeding stuff for cattle, horse, and sheep and can make them strong1. Chemical constituents of this species have not been reported previously. In our research, a new triterpene was isolated from the ethanolic extract of its roots. Compound 1 was obtained as colorless needles, mp 235-237(C. The EI-mass sp… 相似文献
3.
A New Triterpenoid from Doellingeria scaber 总被引:1,自引:0,他引:1
SuPingBAI LiDONG ZhiAnHE LiYANG 《中国化学快报》2004,15(11):1303-1305
A new oleanane-type triterpene was isolated from the roots ofDoellingeria scaber. Itsstructure was identified as 3-oxo-16ct-hydroxy-olean-12-en-28-oic acid based on 1D and 2D NMRspectroscopy and X-ray analysis. 相似文献
4.
A new iridoid glycoside from Gardenia jasminoides 总被引:1,自引:0,他引:1
Xiao Qin Zhou Zhi Ming Bi Ping Li Dan Tang Hal Xia Cai 《中国化学快报》2007,18(10):1221-1223
A new iridoid glycoside,6′-O-sinapoylgeniposide,was isolated from Gardenia jasminoides Ellis and its structure was elucidated on the basis of 1D and 2D NMR,HR-ESI-MS techniques. 相似文献
5.
A New Tetranortriterpenoid from Munronia delavayi 总被引:1,自引:0,他引:1
A tetranortriterpenoid, named munronin G, was isolated from Munronia delavayi (Meliaceae) by chromatography. Its structure was determined on the basis of 1D-, 2D-NMR and mass spectral analyses. 相似文献
6.
A Novel Dimeric Coumarin from Clausena lenis 总被引:1,自引:0,他引:1
HongPingHE ShunTingCHEN YueMaoSHEN ChangXiangCHEN YiBinZHAO XiaoJiangHAO 《中国化学快报》2003,14(11):1150-1153
A novel dimeric coumarin (1), a dimeric of seselin named diseselin A, was isolated from the aerial part of Clausena lenis. The structure was elucidated based on the MS, 1D and 2D NMR data. 相似文献
7.
Jian Feng Liu Kang Ping Xu De Jian Jiang Fu Shuang Li Jian Shen Ying Jun Zhou Ping Sheng Xu Bin Tan Gui Shan Tan 《中国化学快报》2009,20(5):595-597
6-(2-Hydroxy-5-acetylphenyl)-apigenin (1),a new flavonoid with a phenyl substituent,was first isolated from Selaginella tamariscina.Its structure was elucidated on the basis of 1D and 2D NMR as well as ESI-HR-MS spectroscopic analysis. 相似文献
8.
Chemistry of Natural Compounds - Arugosin R (1), a new arugosin type metabolite, was isolated from Talaromyces flavus. Its structure was characterized by detailed analyses of IR, MS, 1D, and 2D NMR... 相似文献
9.
<正>A new tetrahydrophenanthrene named henryin A(1) was isolated from the leaves of Chloranthus henryi.Its structure was determined to be(S)-4,6,9-trimethyl-5,6,7,8-tetrahydrophenanthrene-1,2-diol on the basis of IR,MS,1D and 2D NMR spectral. 相似文献
10.
Luan Yuan Tian Jia Chun Chen Jin Bo Fang Qun Zhou Xue Bai Jian Qiu Zhou Xiang Hong Chen 《中国化学快报》2009,20(6):684-686
A new compound named 1-hydrate,3-deoxy-α-D-tagatofuranose was isolated from Swertia punicea Hemsl.The structure of compound was determined by 1D and 2D NMR,HRESIMS techniques. 相似文献
11.
A new aryltetrahydronaphthalene lignan,(+)-cycloolivil formaldehyde condensate(1),was isolated from the whole plants of Epimedium brevicornum(Berberidaceae).Its structure was elucidated on the basis of MS,1D and 2D NMR techniques. 相似文献
12.
ChaoYANG MengChunYE ZhongJianJIA 《中国化学快报》2003,14(5):483-484
A new xanthanolide was isolated from the aerial parts of Carpesium longifolium.It‘‘‘‘‘‘‘‘s structure was elucidated as 1β,4β-epoxy-5β-hydroxy-10αH-xantha-11(13)-3n-12,8β-olide by spectral methods(HRMS,1D and 2D NMR). 相似文献
13.
Feng Sun Qing He Yi Yu Cheng Pharmaceutical Informatics Institute College of Pharmaceutical Sciences Zhejiang University Hangzhou China Pei Gen Xiao Institute of Medicinal Plant Development Chinese Academy of Medical Sciences Beijing China 《中国化学快报》2007,18(9):1078-1080
A new triterpenoid saponin,named clematiganoside A(1),was isolated from the whole plant of Clematis ganpiniana.Its structure was elucidated on the basis of 1D,2D NMR,TOF-MS and ESI-MS techniques,and physicochemical properties. 相似文献
14.
Zhen Zhang Guang Ming Liu Yue Hu Wang Chun Shun Li yan Li Ren Huai Xiao XJao Jang Hao Hong Ping He 《中国化学快报》2007,18(3):297-299
A new isoflavonolignan has been isolated from the Pueraria alopecuroides Craib. The structure was elucidated by the combination of 1D, 2D NMR analysis and mass spectrometry. 相似文献
15.
Carrie Waterman Laurent Calcul Tina Mutka Dennis E. Kyle Cedric J. Pearce Bill J. Baker 《Tetrahedron letters》2014
Antimalarial screening of diverse fungal samples resulted in the isolation and identification of a new sesquiterpene, trichothecinol D (1), which exhibited potent in vitro activity against Plasmodium falciparum with a 200-fold selectivity for parasite versus mammalian cytotoxicity. Trichothecinol D was obtained by bioassay-guided fractionation of two hyphomycete species. Its chemical characterization was performed by detailed NMR spectroscopy and high resolution mass spectrometry. The absolute configuration of trichothecinol D was determined by X-ray crystallography. 相似文献
16.
A new anti-HIV triterpene from Geum japonicum 总被引:6,自引:0,他引:6
Geumonoid (1), a new triterpene, was isolated from Geum japonicum. Its structure was elucidated on the basis of 1D, 2D NMR and MS spectroscopic analysis. Compound 1 showed inhibitory activity against HIV-1 protease. 相似文献
17.
A new bieremophilanolide was isolated from the roots and rhizomes of Ligularia lapathifolia. Its structure was established as 8,8'-bi-3beta-angeloyloxy-eremophil-7(11)-en-12,8alpha(14beta,6alpha)-diolide (1) by IR, MS, 1D, and 2D NMR experiments. 相似文献
18.
Nian Jun Xu Xue Sun Xiao Jun Yan 《中国化学快报》2007,18(8):947-950
A new compound,8,8′-dienecyclostellettamine,was isolated from the marine sponge Amphimedon compressa.Its structure was elucidated by spectroscopic methods including ID and 2D NMR,UV,IR,ESI-MS,MALDI-MS techniques.It is probably an important precursor of the manzamine alkoids,and also showed vigorous antibacterial activities. 相似文献
19.
A new megastigmane glycoside, phoenixoside A (1), has been isolated from the n-butanol--soluble fraction of seeds of Phoenix dactylifera. The structure was characterized as (6S,7Z,9R)-hydroxy-3-oxo-ionol-9-O-beta-D-glucopyranosyl-(1" --> 6')-beta-D-glucopyranoside on the basis of 1D and 2D NMR spectroscopy, high-resolution mass spectrometry, and CD spectroscopy. 相似文献
20.
YongChunYANG ChunYANG ShunYanMO JianGongSHI 《中国化学快报》2003,14(9):920-922
A new flavone diglycoside, named as pyrropetioside A I was isolated from Pyrrosia petiolosa. Its structrue was elucidated as 7-O-[6-O-(α-L-ambifuranosyl)-β-D-glucopyranosyl]-gossypetin by means of chemical and spectroscopic methods including IR, MS, 1D and 2D NMR techniques. 相似文献