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Details

Autor(en) / Beteiligte
Titel
Artanomadimers A–F: six new dimeric guaianolides from Artemisia anomala
Ist Teil von
  • Tetrahedron, 2012-06, Vol.68 (25), p.5060-5065
Ort / Verlag
Kidlington: Elsevier Ltd
Erscheinungsjahr
2012
Quelle
Access via ScienceDirect (Elsevier)
Beschreibungen/Notizen
  • A novel dimeric guaianolide with an unprecedented skeleton, named artanomadimer A (1), and five new analogues, artanomadimers B–F (2–6), were isolated from the aerial parts of Artemisia anomala. Their structures and stereochemistry were elucidated by extensive spectroscopic methods, and the absolute stereochemistry of compound 4 was confirmed by X-ray crystallographic analysis. Artanomadimer A (1) is probably formed through a Diels–Alder reaction with the new carbon–carbon bond formation of C-11/C-2′ and C-13/C-5′ based on its structure. A cytotoxic evaluation showed that compounds 1 and 6 exhibited significant inhibitory effects against the cell growth of BGC-823 tumor cell lines with IC50 values of 2.71 and 6.25μM, respectively. [Display omitted]

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