A comparative study of the phenolic products in the heartwood of Acacia karroo from two different localities
作者:Elfranco Malan、Pricilla Swartz
DOI:10.1016/0031-9422(95)00966-b
日期:1995.7
Known flavonoids were found in the heartwood of Acacia karroo. New natural products were isolated from the proposed subspecies montana. They are (2'S,3'R)-3,10-dihydroxy-9-O-(6'-hydroxy-7'-O-methyl-2'-hydroxy- methyldihydrobenzo furan-3-yl)dibenz-[b,d]-pyran-6-one and its 10-O-methyl analogue; 8-O-methylepiprosopin-4 beta-ol; 8-methoxyfustin; and 7,8,3,4'-tetrahydroxy-3'-methoxyflavone. Apart from the difference in substitution patterns of the compounds isolated from the two plant sources, the flavonoids from subspecies montana are O-methylated as opposed to none occurring in A. karroo.