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Bisleuconins A–D: a pair of epimeric ent-kauranoid dimers and two new asymmetric analogues isolated from Isodon leucophyllus
- Source :
-
Tetrahedron Letters: International Organ for the Rapid Publication of Preliminary Communications in Organic Chemistry . Nov2011, Vol. 52 Issue 46, p6061-6066. 6p. - Publication Year :
- 2011
-
Abstract
- Abstract: A phytochemical investigation of Isodon leucophyllus led to the isolation of four novel ent-kauranoid dimers: bisleuconins A–D (1–4), and one known compound, rabdoloxin A (5). It was interesting that the structures of bisleuconins A (1) and B (2) were elucidated as a pair of epimeric ent-kauranoid dimers with unique linkage pattern C-16→C-17′ to connect two monomers. Bisleuconins C (3) and D (4) were two new asymmetric ent-kauranoid dimers. A possible biogenetic pathway of 1 and 2 was also proposed. [Copyright &y& Elsevier]
Details
- Language :
- English
- ISSN :
- 00404039
- Volume :
- 52
- Issue :
- 46
- Database :
- Academic Search Index
- Journal :
- Tetrahedron Letters: International Organ for the Rapid Publication of Preliminary Communications in Organic Chemistry
- Publication Type :
- Academic Journal
- Accession number :
- 66661573
- Full Text :
- https://doi.org/10.1016/j.tetlet.2011.08.133