info:eu-repo/semantics/article
Fernene Triterpenoids from the Lichen Pyxine berteriana
Fecha
2009-09-16Registro en:
Maier, Marta Silvia; Rosso, María L.; Fazio, Alejandra Teresa; Adler, Monica Teresa; Bertoni, María D.; Fernene Triterpenoids from the Lichen Pyxine berteriana; American Chemical Society; Journal of Natural Products; 72; 10; 16-9-2009; 1902-1904
0163-3864
1520-6025
CONICET Digital
CONICET
Autor
Maier, Marta Silvia
Rosso, María L.
Fazio, Alejandra Teresa
Adler, Monica Teresa
Bertoni, María D.
Resumen
Two new fernene triterpenoids, fern-9(11)-en-3,19-dione (1) and 3beta-acetoxyfern-9(11)-en-19-one (2), together with the known 3beta-acetoxyfern-9(11)-en-19beta-ol (3) and lichexanthone (4), have been isolated from the acetone extract of the lichen Pyxine berteriana. The structures of the new compounds were established on the basis of IR, extensive 1D and 2D NMR, and MS analyses. Although several fern-9(11)-enes have been isolated from lichens, compounds 1 and 2 are the first examples of naturally occurring fernene triterpenoids with a carbonyl function at C-19.