Abietane Diterpenoids from Coleus xanthanthus
- 2 April 2002
- journal article
- research article
- Published by American Chemical Society (ACS) in Journal of Natural Products
- Vol. 65 (5) , 633-637
- https://doi.org/10.1021/np0102049
Abstract
Eight new abietane diterpenoids, coleon U 11-acetate (1), 16-acetoxycoleon U 11-acetate (2), and xanthanthusins F-K (3-8), together with five known analogues, coleon U (9), 16-O-acetylcoleon C (10), coleon U-quinone (11), 8alpha,9alpha-epoxycoleon U-quinone (12), and xanthanthusin E (13), were isolated from the aerial parts of Coleus xanthanthus. The structures of 1-8 were elucidated on the basis of spectral methods. Compounds 1, 5, and 11-13 were evaluated for their cytotoxicity against K562 human leukemia cells.Keywords
This publication has 6 references indexed in Scilit:
- Drüsenfarbstoffe aus Labiaten: Strukturen von 16 Diterpenen (Coleone und Royleanone) aus Coleus coerulescensGÜRKEHelvetica Chimica Acta, 1978
- Barbatusin and cyclobutatusin, two novel diterpenoids from coleus barbatus benthamTetrahedron, 1977
- Sur les dérivés de la fluorénone VIII. Difluorénonyl‐cétones, difluorényl‐cétones et difluorényl‐méthanesHelvetica Chimica Acta, 1975
- Absolute Konfiguration der enantiomeren α‐CyclogeraniumsäUren, α‐Cyclogeraniale, α‐Jonone, γ‐Jonone, α‐und ϵ‐CarotineHelvetica Chimica Acta, 1973
- Dramatic rate enhancement of the aquation of the tris(oxalato)chromate(III) anion by surfactant solubilized water in benzeneJournal of the American Chemical Society, 1973
- Selective reductions. XIV. Fast reaction of aryl bromides and iodides with lithium aluminum hydride in tetrahydrofuran. Simple convenient procedure for the hydrogenolysis of aryl bromides and iodidesThe Journal of Organic Chemistry, 1969