Cycloartane derivatives from Tillandsia usneoides

Investigation of the extract of Tillandsia usneoides afforded 26 cycloartane derivatives, including the following novel ones: (22E)-25,26,27- trisnor-3-oxocycloart-22-en-24-al, (24E)-3-oxocycloart-24-en-26-al, 24- hydroxycycloart-25-en-3-one, (23E)-25-methoxycycloart-23-en-3-one, (23E)-25- hydropero...

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Detalles Bibliográficos
Autores principales: Cabrera, G.M., Gallo, M., Seldes, A.M.
Formato: JOUR
Materias:
plant extract
article
carbon nuclear magnetic resonance
chemical structure
extraction
mass spectrometry
plant
proton nuclear magnetic resonance
Tillandsia usneoides
Acceso en línea:http://hdl.handle.net/20.500.12110/paper_01633864_v59_n4_p343_Cabrera
Aporte de:
Biblioteca Digital - Facultad de Ciencias Exactas y Naturales (UBA) de Universidad de Buenos Aires
Descripción
Sumario:Investigation of the extract of Tillandsia usneoides afforded 26 cycloartane derivatives, including the following novel ones: (22E)-25,26,27- trisnor-3-oxocycloart-22-en-24-al, (24E)-3-oxocycloart-24-en-26-al, 24- hydroxycycloart-25-en-3-one, (23E)-25-methoxycycloart-23-en-3-one, (23E)-25- hydroperoxycycloart-23-en-3-one, 25,26,27-trisnor-24-hydroxycycloartan-3- one, methyl (24E)-26-carboxy-3,4-seco-cycloart-4(29),24-dien-3-oate, methyl (23E)-25-hydroxy-3,4-seco-cycloart-23-en-3-oate, methyl (23E)-25-methoxy- 3,4-seco-cycloart-23-en-3-oate, and methyl 24-hydroxy-3,4-seco-cycloart-25- en-3-oate. The structures were assigned on the basis of spectral data.

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