共查询到20条相似文献,搜索用时 15 毫秒
1.
Fang‐Fang Liu Guo‐Hong Li Zhong‐Shan Yang Xi Zheng Yue Yang Ke‐Qin Zhang 《Helvetica chimica acta》2010,93(9):1737-1741
Two new sesquiterpenes, stereumin F ( 1 ) and stereumin G ( 2 ), together with two known compounds (3β,5α,22E,24R)‐5,8‐epidioxyergosta‐6,22‐dien‐3‐ol ( 3 ) and 4‐(2‐hydroxyethyl)phenol ( 4 ), were isolated from the AcOEt extract of the culture broth and the MeOH extract of the mycelium of the fungal strain Stereum sp. CCTCC AF 207024. Their structures were established on the basis of spectral analyses. 相似文献
2.
From the endophytic strain Streptomyces sp. CS of Maytenus hookeri, five novel type III polyketides, compounds 1 – 5 , were isolated. Their structures were elucidated by spectroscopic analyses including 1D‐ and 2D‐NMR experiments, and by HR‐ESI‐MS. 相似文献
3.
JianXinPU JingFengZHAO XiaoDongYANG ShuangXiMEI HongBinZHANG LiangLI 《中国化学快报》2004,15(12):1454-1456
A new sesquiterpene lactone, Ainsliaolide A, was isolated from Ainsliaea bonatii. The structure was determined on the basis of spectral data. 相似文献
4.
Qi Peng Fen Liu Huan Sun Xiao-Jian Liao Mei-Ran Feng Ting-Ting Liu 《Natural product research》2016,30(20):2299-2304
A new sesquiterpene named menecubebane B (1) and a known analogue (2) were isolated from the gorgonian coral Menella sp. Their structures were elucidated by the extensive analyses of spectroscopic data and by the comparison with related literature. Cytotoxic effect against both Eca9706 and HeLa cell lines was evaluated, revealing 1 exhibited moderate cytotoxicity against the two cell lines involved with IC50 values being 20.8 and 30.6 μM, respectively. 相似文献
5.
A new acyclic sesquiterpene oligoglycoside, named mukurozioside A, was isolated from pericarps of Sapindun mukurossi. On the basis of chemical and spectral evidence, the structure of mukurozioside A has been established as:11(S)-2,6(E,E)-dodecadiene-3,7,11-trimethyl-1,12-diol-1,12-bis-O-α-L-rhamnopyranosyl-(1→2)-[α-L-rhamnopyranosyl-(1→3)]-6-O-acetyl-β-D-Glucopyranoside(1). 相似文献
6.
In the course of our searching for anti-HIV agents from natural sources, we have isolated a triterpene and a doubly linked proanthocyanidin dimer as HIV-1 protease inhibitors from the wood of Xanthoceras sorbifolia Bunge (Sapindaceae)1. Further investigation of this plant has led to the isolation of a protoilludane sesquiterpene (1). The present paper describes the isolation and structural determination of this novel sesquiterpene. The EtOH eluate of a MeOH extract of the wood of X. so… 相似文献
7.
TherootbarkofDicla));nuscl(I311'c'(I)pllsTurcz.(Chinesename"Bai-Xian-Pi")(Rutaceae)isatraditi0nalChinesemedicineusedtbrtreatment0fjaundice,coughandrheumatism.lthasaIs0beenwidelyusedt0treatsomeskindiseases1.lnourpreviouspapers.werep0rtedtl1eisolati0nandstructuredeterminati0n0fantifungalfuroquinolinealkal0idsandfivenovelsesquiterPeneglycosides=".Inac0ntinuati0n0fourinvestigationofchemicalco11sitituents0fthisplant,weidentifiedan0thertw0novelsesquiterpenediglycosidesnameddictamn0sidesFlandG2f… 相似文献
8.
Chinesebittersweet(CelaslrusangulalusM.)iswidelydistributedinChina.IthasbeenusedastraditionalplantinsecticideandamedicinalherbformanyyearsinthefolkmedicineofChina'-'.Inpreviousstudies,P-dihydroagarofuransesquiterpenepolyolestersandsesquiterpenealkaloidswerefrequentlyfoundinthecelaslrusfamilyofplants'-',ItwasreportedthatmostofP-dihydroagarofuransesquiterpenepolyolestersfromChinesebit-tersweethaveinhibitoryeffectsonEBVandantitumoractivity'.,'.InourattempttofindnovelbioactivecompoundsintheCh… 相似文献
9.
A New Perylenequinone from Hypomyces sp. 总被引:4,自引:0,他引:4
Wei Zhong LIU* Yun Xiu SHEN Xiang Feng LIU Yuan Teng CHEN Jin Lun XIE Chemistry Teaching Research Department Binzhou Medical College Binzhou Fermentation Engineering Key Laboratory Yunnan University Kunming 《中国化学快报》2001,(5)
Some metabolites of fungi and plants containing perylenequinones have been used as folk medicine for the treatment of many diseases1,2. A filamentous fungus, Ascomy-cetes Hypocreaceae Hypomyces (Fr.) Tul. sp., was found from the northwestern mountains of Yunnan Province, and cultured successfully in the laboratory. A new perylenequinone, named hypomycin A (1), was isolated from its mycelia. In this paper the structure elucidation of 1 was described. Figure 1 The structure of compound 1 Fig… 相似文献
10.
Sesquiterpene Lactones from Notoseris Porphyrolepis 总被引:2,自引:0,他引:2
Two new sesquiterpene lactones, notoserolides A and B, along with 12 known compounds were isolated from the aerial parts of Notoseris porphyrolepis.By means of spectral methods including MS, NMR (1H NMR, 13C NMR, DEPT, HMQC, HMBC) and X-ray diffraction, as well as chemical reactions, the structures of notoserolides A and B were established as austricin 8-O-β-D-glucopyranoside and 8-O-senecioylaustricin, respectively. 相似文献
11.
ThechemicalstudiesofLigulariasongaricahavenotbeenreportedtillnow.Inourpreliminarystudyontherootsofthisplant,anewbisabolanesesquiterpenewasobtainedanditsstructurewasidentifiedasSp-acetoxy-40,8-diangeloyloxy-26,3p,;10,Ildiepoxy-bisabola-7(14)-ene1.,Com... 相似文献
12.
Wen‐Jian Lan Hong‐Ping Wan Guo‐Xi Li Hou‐Jin Li Yun‐Yun Chen Cheng‐Zhu Liao Ji‐Wen Cai 《Helvetica chimica acta》2008,91(3):426-434
Chemical investigation of an extract of the marine sponge Axinyssa sp., collected from the South China Sea, led to the isolation and identification of two new sesquiterpene formamides, (4R*,5R*,10R*)‐4‐formamidoeudesm‐7‐ene ( 1 ) and (4R*,5R*,7S*,10R*)‐4‐formamidoeudesman‐11‐ol ( 2 ), together with the known 4α‐formamidogorgon‐11‐ene ( 3 ). Their structures were elucidated by spectroscopic methods, including 1D‐ and 2D‐NMR spectroscopy, high‐resolution ESI‐TOF mass spectrometry, as well as X‐ray single‐crystal diffraction experiments. Possible biosynthetic pathways for 1 – 3 were also proposed. The human nasopharyngeal cancer cell line CNE‐2, human cervical cancer cell line HeLa, and human normal liver cell line L02 were used to examine the cytotoxic activities of 1 – 3 in vitro. As the results, 1 showed significant cytotoxic activity against CNE‐2, HeLa, and L02 cell lines with the IC50 values of 13.8, 7.5, and 38.0 μg/ml, resp. 相似文献
13.
The genus Noloserl's comprising of 14 species is native to China. and Noloserisporphl)rolopis Shin is mainly distributed in southwestern Chinal. So far there are manyreports on sesquiterpenes isolated from Asteraceae=, but nothing is known aboutsecondary metabolites of Notoseris. From the aerial parts of N. porphJ)rolepis. two newguaianolides A and B, named notoserolides A (2) and B (3), along with 12 knowncompounds, austricin (l), artesin'. magnolialide', deoxylactucin', jacquinelin'.cre… 相似文献
14.
A new sesquiterpene:11,12,13-trihydroxy-4(15),7(8)-eudesmdien-9-one was isolated from Saussurea parviflora. The structure was elucidated on the basis of spectral evidence. 相似文献
15.
Yan Liang Weifeng Xu Chengmei Liu Dexiong Zhou Xiaobo Liu Yuyue Qin 《Natural product research》2019,33(9):1304-1309
A new eremophilane sesquiterpene, xylareremophil (1), together with five known eremophilanes, 1α,10α-epoxy-3α-hydroxyeremophil-7(11)-en-12,8β-olide (2), 1,10α,13-trihydroxyeremophil-7(11)-en-12,8-olide (3), 1α,10α-epoxy-13-hydroxyeremophil-7(11)-en-12,8β-olide (4), mairetolides B (5) and G (6) were isolated from the endophytic fungus Xylaria sp. GDG-102 cultured from Sophora tonkinensis. Their structures were elucidated on the basis of spectroscopic data analysis. The absolute configurations of 1 was determined by comparing computed electronic circular dichroism (ECD) and optical rotation (OR) with experimental results. Compounds 1, 5 and 6 showed antibacterial activities against Proteus vulgaris, Micrococcus luteus, Micrococcus lysodeikticus and Bacillus subtilis with MIC values of 25–100 μg/mL. 相似文献
16.
Four novel diterpenoids, namely (4β)‐4,4‐O‐dihydrocrinipellin A ( 1 ), (4β,8α)‐4,4‐O,8,8‐O‐tetrahydrocrinipellin B ( 2 ), crinipellin C ( 3 ), and crinipellin D ( 4 ), along with three known ones, (3β,4β)‐3,3‐C,4,4‐O‐tetrahydrocrinipellin A ( 5 ), (4β)‐4,4‐O‐dihydrocrinipellin B ( 6 ), and phlebiakauranol alcohol, were isolated from the fungal strain Crinipellis sp. 113. Their structures were elucidated by spectroscopic analyses, including 1D‐ and 2D‐NMR experiments, and by HR‐Q‐TOF mass spectrometry. Antitumor and antibacterial assays with the novel compounds 1 – 4 were carried out, showing moderate activities against HeLa cells and no effects on the growth of tested bacteria or yeast. 相似文献
17.
Yabin Yang Fangfang Yang Lixing Zhao Rongting Duang Guangyi Chen Xiaozhan Li 《Natural product research》2016,30(1):65-68
A new polyoxygenated farnesylcyclohexenone, peniginsengin A (1), was isolated from the fermentation of Penicillium sp. YIM PH30003, an endophytic fungus associated with Panax notoginseng (Burk.) F. H. Chen. The structure was assigned based on a combination of 1 D and 2 D NMR and mass spectral data. The cytotoxicity and antimicrobial activities of compound 1 were investigated. 相似文献
18.
A new Eremophilanoid sesquiterpene(1) was isolated from the whole plant of Senecio oldhaminus. Its structure was elucidated as 7β,11-epoxy-9α,10α-epoxy-8-oxoeremophilane using spectroscopic methords and X-ray analysis. 相似文献
19.
A New Sesquiterpene Lactone from Scorzonera austriaca 总被引:2,自引:0,他引:2
JuanLI QuanXiangwu YanPingSHI YingZHU 《中国化学快报》2004,15(11):1309-1310
A new guaianolide was isolated from the roots of Scorzonera austriaca. The structurewas elucidated on the basis of spectral methods including 2D NMR. 相似文献
20.
Two novel sesquiterpenoids, sinularianins A and B (1 and 2), have been isolated from the Formosan coral Sinularia sp. The skeleton of sinularianins A (1), namely sinulariolane, was found to be unprecedented. Sinularianin B (2), with a novel spiro-butenolide moiety, possesses a valerenane skeleton, which had been reported mostly from the plant. The structures of both metabolites were established by extensive analysis of spectroscopic data. 相似文献