Zobrazeno 1 - 10
of 461
pro vyhledávání: '"Christa Zdero"'
More than 1200 diterpenes have been identified from approximately 550 Compo sitae taxa (Figure 1 [pp. 219-384], Tables 1-3 [pp. 7-218]). The annual output of such reports rose sharply during the past several years, a trend that was also reflected by
Publikováno v:
Phytochemistry. 31:1703-1711
The aerial parts of Olearia teretifolia afforded, in addition to two known diterpenes, 39 new ones, 20 ent -clerodanes and 19 ent -labdanes. Furthermore, a new enediynediene and coniferyl acetate were present. The structures were elucidated by high f
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::66f3e0c8afd2e5d1d905669ba2a5021f
https://doi.org/10.1016/0031-9422(92)83132-i
https://doi.org/10.1016/0031-9422(92)83132-i
Publikováno v:
Phytochemistry. 31:1631-1638
The aerial parts of Chrysocephalum ambiguum afforded, in addition to two known diterpenes, 28 new ones, 22 ent-labdanes, four ent-manoyloxide derivatives and two monocyclic diterpenes derived from helipterol. The structures were elucidated by high fi
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::0745eaaea5c9c7a1a4e5512be0537fa5
https://doi.org/10.1016/0031-9422(92)83119-j
https://doi.org/10.1016/0031-9422(92)83119-j
Publikováno v:
Phytochemistry. 31:1723-1726
The aerial parts of Gutierrezia resinosa gave 15 new diterpenes including 12 labdanes and three nerylgeraniol derivatives. The structures were elucidated by high field NMR spectroscopy.
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::9696c2865a75b215788507294d1d9aba
https://doi.org/10.1016/0031-9422(92)83135-l
https://doi.org/10.1016/0031-9422(92)83135-l
Publikováno v:
Phytochemistry. 31:213-216
The aerial parts of D. floribundum afforded, in addition to known compounds, 10 new clerodane derivatives while D. ericoides gave 2β-hydroxyhardwickiic acid and widespread compounds. The structures were elucidated by high field NMR spectroscopy. The
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::fd16c72aa8f7d8ed8543057780e12b38
https://doi.org/10.1016/0031-9422(91)83038-m
https://doi.org/10.1016/0031-9422(91)83038-m
Publikováno v:
Phytochemistry. 30:3683-3691
The aerial parts of Haplopappus parvifolius afforded 30 new diterpenes including 21 labdane derivatives, four nor -diterpenes, three rearranged ones, four seco -labdanes and one with a new carbon skeleton whose structure was established by partial sy
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::7e2d1a66f7ba53f9260a2a62fb8d6f48
https://doi.org/10.1016/0031-9422(91)80091-e
https://doi.org/10.1016/0031-9422(91)80091-e
Publikováno v:
Phytochemistry. 30:3669-3677
From the aerial parts of Haplopappus pulchellus two new labdanes and six friedolabdanes were isolated while H. arbutoides afforded in addition to known labdanes five new ones, two clerodanes and a cyperone derivative. Haplopappus remyanus gave two fu
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::db5d08336dc64f2743135caa708f07a0
https://doi.org/10.1016/0031-9422(91)80089-j
https://doi.org/10.1016/0031-9422(91)80089-j
Publikováno v:
Phytochemistry. 30:3297-3303
Four species of the Sphaeranthus group afforded, in addition to known compounds, 12 new ent-labdane derivatives, seven carvotacetone derivatives and mixtures of myo-inositol esters. Structures were elucidated by high field NMR techniques. The chemota
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::433766483d18e8ccc269cdf80ced238d
https://doi.org/10.1016/0031-9422(91)83197-s
https://doi.org/10.1016/0031-9422(91)83197-s
Publikováno v:
Phytochemistry. 30:1579-1584
From the aerial parts of Siegesbeckia orientalis , in addition to a known sesquiterpene lactone, nine new germacranolides, three melampolides, three geranylnerol derivatives and three ent -pimarenes were isolated. From Guizotia scabra a new eudesmano
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::8d1b515de7a2ea48557adca6cc7608bc
https://doi.org/10.1016/0031-9422(91)84212-b
https://doi.org/10.1016/0031-9422(91)84212-b
Publikováno v:
Phytochemistry. 30:1597-1601
The aerial parts of B. santelicis afforded several known furoclerodanes and phenolics. In addition to known compounds an unusual dimeric sesquiterpene and five labdane derivatives were isolated from B. petiolata . The structures were elucidated by hi
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::351506fa1d43fcac528e47b52620fbb5
https://doi.org/10.1016/0031-9422(91)84215-e
https://doi.org/10.1016/0031-9422(91)84215-e