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Four novel gelsedine-type oxindole alkaloids from Gelsemium elegans
- Source :
-
Tetrahedron . Aug2008, Vol. 64 Issue 33, p7690-7694. 5p. - Publication Year :
- 2008
-
Abstract
- Abstract: Four new gelsedine-type oxindole alkaloids (1–4) were isolated from the leaves and branches of Gelsemium elegans, together with 10 known alkaloids. The structures of the new alkaloids were determined by spectroscopic analyses and partial synthesis from known compounds. Gelsecrotonidine (1), 14-hydroxygelsecrotonidine (2), and 11-methoxygelsecrotonidine (3) possess an additional C2 unit with an acetic acid residue compared to gelsenicine-related monoterpenoid indole alkaloids. 14-Hydroxygelsedilam (4) is an 18,19-nor-type monoterpenoid indole alkaloid. [Copyright &y& Elsevier]
- Subjects :
- *ALKALOIDS
*GELSEMIUM
*INDOLE alkaloids
*ORGANONITROGEN compounds
Subjects
Details
- Language :
- English
- ISSN :
- 00404020
- Volume :
- 64
- Issue :
- 33
- Database :
- Academic Search Index
- Journal :
- Tetrahedron
- Publication Type :
- Academic Journal
- Accession number :
- 32981783
- Full Text :
- https://doi.org/10.1016/j.tet.2008.06.030