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1.
From the aerial parts of Sideritis foetens, the previously known ent-13(16),14-labdadiene-6α,8α,18-triol (andalusol) has been isolated. In addition, two new natural andalusol monoacetates and the novel ent-6α-acetoxy-13(16),14-labdadiene-3β,8α-diol have also been obtained from the same source. The structures of these new diterpenoids have been established by chemical and spectroscopic means. 相似文献
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Concepción Fernández Braulio M. Fraga Antonio G. González Melchor G. Hernández James R. Hanson Peter B. Hitchcock 《Phytochemistry》1985,24(1):188-189
ent-Norambreinolide has been isolated from Sideritis nutans and its structure determined by X-ray analysis. 相似文献
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D. RIVERA NUÑEZ C. OBON DE CASTRO F. TOMAS-LORENTE F. FERRERES F. A. TOMAS BARBERAN 《Botanical journal of the Linnean Society. Linnean Society of London》1990,103(4):325-349
RIVERA NUÑEZ, D., OBON DE CASTRO, C., TOMAS-LORENTE, F., FERRERES, F. & TOMAS-BARBERAN, F. A., 1990. Infrasectional systematics of the genus Sideritis L. section Sideritis (Lamiaceae). A new taxonomic division of the section Sideritis is proposed on the basis of morphological, cytological and chemical characters. The following subsections art-recognized: Grandiflora, Ovata, Camarae, Linearifolia, Gymnocarpae, Stachydioides, Lacaitae, Hirsuta, Chamaedryfolia, Arborescens, Flavovirens, Leucantha, Angustifolia, Serrata and Scordioides . Possible evolutionary pathways are discussed. 相似文献
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Ghoumari H Benajiba MH Azmani A García-Granados A Martínez A Parra A Rivas F Socorro O 《Phytochemistry》2005,66(12):1492-1498
Seven new ent-kauranoid derivatives ent-7alpha,18-dihydroxykaur-16-en-3-one, ent-18-acetoxy-3beta,7alpha-dihydroxykaur-15-en-17-al, ent-3beta-acetoxy-7alpha,18-dihydroxykaur-15-en-17-al, ent-18-acetoxy-3beta,7alpha,17-trihydroxykaur-15-ene, ent-3beta-acetoxy-7alpha,17,18-trihydroxykaur-15-ene, ent-18-acetoxy-3beta,7alpha,17-trihydroxy-15beta,16beta-epoxykaurane and ent-3beta-acetoxy-7alpha,17,18-trihydroxy-15beta,16beta-epoxykaurane have been isolated from Sideritis moorei. The structures of these compounds have been established by spectroscopic means and chemical correlations. 相似文献
5.
Two new diterpenes ribenol [3α-hydroxy-(?)-13-epimanoyl oxide] (I)and 7β-acetoxy-18-hydroxytrachylobane (IX) as well as the known (?)-13-epimanoyl oxide (IV) have been isolated from Sideritis canariensis Ait. 相似文献
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Two new diterpenes have been isolated from Sideritis sicula: sideripol, ent-18-acetoxy-7α-hydroxykaur-15-ene and epoxysideritriol, ent-15β,16β-epoxykauran-7α,17,18-triol. The previously known diterpene eubol, ent-7α-acetoxykaur-16-en-15β,18 diol has also been obtained from the same source. 相似文献
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Antonio G. González Braulio M. Fraga Melchor G. Hernandez Javier G. Luis 《Phytochemistry》1973,12(11):2721-2723
The three new diterpenes candol-A (ent-16-kauren-7α-ol, I), candol-B (ent-16-kauren-18-ol, III) and epicandicandiol 7β-monoacetate (ent-7α-acetoxy-16-kauren-18-ol, V) as well as epicandicandiol (VII) have been isolated from Sideritis candicans. 相似文献
9.
Four new diterpenes have been isolated from Sideritis serata: lagascol (4, ent-8,5-friedopimar-5-ene-15S,16-diol), tobarrol (8, ent-15-beyerene-12α,17-diol), benuol (12, ent-15-beyerene-7α,17-diol) and serradiol (18, ent-16R-atis-13-ene-16,17-diol). The previously known diterpenes lagascatriol (1, ent-8,5-friedopimar-5-ene-11β,15S,16-triol), jativatriol (2, ent-15-beyerene-1β,12α,17-triol), conchitriol (3, ent-15-beyerene-7α,12α,17-triol) and sideritol (17, ent-16R-atis-13-ene-1β,16,17-triol) have also been obtained from the same source. 相似文献
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Benjamín Rodríguez 《Phytochemistry》1978,17(2):281-286
From the aerial parts of Sideritis chamaedryfolia six previously known ent-kaurene diterpenoids have been isolated. In addition, seven new labdane derivatives have also been obtained from the same source. The structures of these new natural diterpenoids have been established by chemical spectroscopic means and by correlation with known products. 相似文献
12.
Francisco Tomas Bernard Voirin Francisco A.T. Barberan Philippe Lebreton 《Phytochemistry》1985,24(7):1617-1618
A new naturally occurring hypolaetin 8-β-D-glucoside has been isolated and identified from Sideritis leucantha. The natural compound suffered nuclear methylation during derivatization. 相似文献
13.
8-Hydroxyluteolin occurs in Sideritis leucantha as the 7-(2″-allosylglucoside) and the 8-glucoside of its 6,7-dimethyl ether has also been characterized from the same plant. 相似文献
14.
Andrés García-Granados Antonio Molina Antonio Sáenz de Buruaga Juan Manuel Sáenz de Buruaga 《Phytochemistry》1985,24(1):97-101
Two subspecies of Sideritis varoi afforded, in addition to previously reported diterpenes, the following series of new eudesmane and eudesmene acetates: 1β-hydroxy-6β-acetoxy-eudesm-4(15)-ene; 1β,4β-dihydroxy-6β-acetoxy-eudesmane; 1β-hydroxy-6β-acetoxy-eudesm-3-ene; 1β-hydroxy-6β-acetoxy-eudesm-4-ene. The structures of these compounds were elucidated by chemical and spectroscopic means. 相似文献
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Several ent-labda-13(16),14-dienes, ent-13-epi-manoyl oxides and the new natural products ent-6α,8α-dihydroxylabda-13(16),14-diene, ent-18-hydroxy-15(16)peroxylabd-13-ene,ent-16,18-dihydroxymanoyl oxide, ent-13-epi-16,18-dihydroxymanoyl oxide and ent-6α16,18-trihydroxymanoyl oxide have been isolated from Sideritis arborescens subsp. paulii. The structures of these compounds have been established by spectroscopic means and chemical correlations. 相似文献
18.
The isolation of a new epoxy-diterpene from the inflorescence of Sideritis syriaca (S. sicula Ucria) is described. Its structure and stereochemistry were established by spectroscopy and partial synthesis. 相似文献
19.
Antonio G. González Braulio M. Fraga Melchor G. Hernández Francisca Larruga Javier G. Luis 《Phytochemistry》1975,14(12):2655-2656
Four new labdane diterpene oxides gomeraidehyde, 13-epigomeraldehyde, gomeric acid and 13-epigomeric acid as well as eperu-13-ene-8β,15-diol were isolated from the aerial part of Sideritis gomerae. 相似文献
20.
The quantitative composition of the essential oils from 6 different Sideritis species collected in the Mediterranean coast of Spain is reported. Sixty-five components have been identified. 相似文献