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Search Results: 1 - 10 of 24 matches for " eremophilane sesquiterpenoid "
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Dihydroberkleasmin A: A New Eremophilane Sesquiterpenoid from the Fermentation Broth of the Plant Endophytic Fungus Pestalotiopsis photiniae
Xiao-Long Yang,Su Zhang,Hua-Jie Zhu,Du-Qiang Luo
Molecules , 2011, DOI: 10.3390/molecules16021910
Abstract: Dihydroberkleasmin A (1), a new ester-substituted sesquiterpenoid related to the eremophilane class, together with the known compound berkleasmin C (2), were isolated from the fermentation broth of the plant endophytic fungus Pestalotiopsis photiniae. The structure of dihydroberkleasmin A (1) was elucidated by extensive spectroscopic analysis. The stereochemistry was assigned by comparison of the NMR spectroscopic data with those of berkleasmin A.
Two novel eremophilane sesquiterpenes from an endophytic Xylariaceous fungus isolated from leaves of Cupressus lusitanica
Amaral, Luciana S.;Rodrigues-Filho, Edson;
Journal of the Brazilian Chemical Society , 2010, DOI: 10.1590/S0103-50532010000800006
Abstract: two new eremophilane sesquiterpenes, cupressolide a and cupressolide b, along with two known sesquiterpenes, has been characterized from the etoac extract of a liquid medium where a xylariaceous fungus, isolated as an endophytic fungus from health tissues of cupressus lusitanica leaves, was cultivated. the structures of the isolated compounds were determined by analyses of their ms and nmr spectroscopic data.
Cytosporinols A-C, new caryophyllene sesquiterpenoids from Cytospora sp.
Yan Li,Chang-Wei Li,Cheng-Bin Cui,Xing-Zhong Liu,Yong-Sheng Che
Natural Products and Bioprospecting , 2012, DOI: 10.1007/s13659-012-0018-z
Abstract: Three new caryophyllene sesquiterpenoids, cytosporinols A-C (1–3), have been isolated from solid cultures of Cytospora sp. The structures of 1–3 were elucidated primarily by NMR spectroscopy, and 3 was further confirmed by X-ray crystallography. The absolute configurations of the C-11 secondary alcohol in 1 and the 6,8-diol moiety in 3 were deduced using the modified Mosher and Snatzke’s method, respectively. Compounds 2 and 3 showed moderate cytotoxicity against HeLa cells.
Non-isoprenoid botryane sesquiterpenoids from basidiomycete Boletus edulis and their cytotoxic activity
Tao Feng,Zheng-Hui Li,Ze-Jun Dong,Jia Su,Yan Li,Ji-Kai Liu
Natural Products and Bioprospecting , 2011, DOI: 10.1007/s13659-011-0005-9
Abstract: Three non-isoprenoid botryane sesquiterpenoids, named boledulins A-C (1–3), have been isolated from the cultures of basidiomycete Boletus edulis Bull. The structures were established by means of spectroscopic methods. Boledulin A (1) exhibited moderate inhibitory activity against five human cancer cell lines.
Carbamate derivatives and sesquiterpenoids from the South China Sea gorgonian Melitodes squamata
Li-Si Huang,Fei He,Hui Huang,Xiao-Yong Zhang
Beilstein Journal of Organic Chemistry , 2012, DOI: 10.3762/bjoc.8.18
Abstract: Five carbamate derivatives, obtucarbamates C and D (1, 2), dimethyl ((carbonylbis(azanediyl))bis(2-methyl-5,1-phenylene))dicarbamate (3), obtucarbamates A and B (4, 5), and four aromadendrane-type sesquiterpenoids, (+)-4β-N-methenetauryl-10β-methoxy-1β,5α,6β,7β-aromadendrane (6), ( )-4β-N-methenetauryl-10β-methoxy-1β,5β,6α,7α-aromadendrane (7), ( )-4α,10β-aromadendranediol (8), (+)-4β,10β-aromadendranediol (9) were obtained from the South China Sea gorgonian coral Melitodes squamata Nutting. Compounds 1, 2, 6, and 7 were new, and their structures were established by spectroscopic analyses. Compounds 6 and 7 contained a taurine group that was rarely found in marine natural compounds, and 7 showed moderate antibacterial activity. The possible biosynthesis routes of 1–5 were conjectured.
Menelloides C and D, New Sesquiterpenoids from the Gorgonian Coral Menella sp.
Shih-Yao Kao,Jui-Hsin Su,Tsong-Long Hwang,Jyh-Horng Sheu,Zhi-Hong Wen,Yang-Chang Wu,Ping-Jyun Sung
Marine Drugs , 2011, DOI: 10.3390/md9091534
Abstract: Two new metabolites, including a lindenane-type sesquiterpenoid, menelloide C ( 1), and a germacrane-type sesquiterpenoid, menelloide D ( 2), were isolated from a Formosan gorgonian coral identified as Menella sp. The structures of 1 and 2 were established by spectroscopic methods and 2 displayed a weak inhibitory effect on the release of elastase by human neutrophils.
Terpenoids from Chloranthus elatior
Chang-Li Sun,Huan Yan,Xu-Hong Li,Xue-Fang Zheng,Hai-Yang Liu
Natural Products and Bioprospecting , 2012, DOI: 10.1007/s13659-012-0039-7
Abstract: Two new eudesmane-type sesquiterpenoid lactones, named chlorelactone A (1) and chlorelactone B (2), and one new labdane-type diterpenoid, named elatiorlabdane (3), along with seven known sesquiterpenoids and one known disesquiterpenoid were isolated from the whole plants of Chloranthus elatior. Their structures and relative configurations were established on the basis of extensive spectroscopic analysis.
Twelve new compounds from the basidiomycete Boreostereum vibrans
Jian-Hai Ding,Tao Feng,Zheng-Hui Li,Liang Li,Ji-Kai Liu
Natural Products and Bioprospecting , 2012, DOI: 10.1007/s13659-012-0060-x
Abstract:
A new eremophilane-type sesquiterpene from the phytopatogen fungus Lasiodiplodia theobromae (Sphaeropsidaceae)
Nunes, Fátima M.;Oliveira, Maria da Concei??o F. de;Arriaga, ?ngela M. C.;Lemos, Telma L. G.;Andrade-Neto, Manoel;Mattos, Marcos C. de;Mafezoli, Jair;Viana, Francisco M. P.;Ferreira, Viviane M.;Rodrigues-Filho, Edson;Ferreira, Ant?nio G.;
Journal of the Brazilian Chemical Society , 2008, DOI: 10.1590/S0103-50532008000300015
Abstract: the phytopatogenic fungus lasiodiplodia theobromae, isolated from guava, was cultivated in rice for 32 days at room temperature. extraction with ch2cl2:meoh (3:7), followed by chromatography fractionation of the extract provided ergosterol. from the fungus culture in czapeck medium for 40 days at room temperature, were isolated isocoumarin cis-4-hydroxymeleine and an eremophilane-type sesquiterpene. the latter compound is being reported for the first time in the literature. also, this is the first time that an eremophilane sesquiterpene is described for lasiodiplodia genus.
Five Sesquiterpenoids from a Marine-Derived Fungus Aspergillus sp. Isolated from a Gorgonian Dichotella gemmacea
Mei-Yan Wei,Chang-Yun Wang,Qing-Ai Liu,Chang-Lun Shao,Zhi-Gang She,Yong-Cheng Lin
Marine Drugs , 2010, DOI: 10.3390/md8040941
Abstract: Three new phenolic bisabolane-type sesquiterpenoids: (+)-methyl sydowate ( 1), 7-deoxy-7,14-didehydrosydonic acid ( 2), and 7-deoxy-7,8-didehydrosydonic acid ( 3), together with two known fungal metabolites were isolated from the fermentation broth of a marine-derived fungus Aspergillus sp., which was isolated in turn from a gorgonian Dichotella gemmacea collected from the South China Sea. Their structures were elucidated by combined spectroscopic methods, and the structure of 1 was further confirmed by single-crystal X-ray data.
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