Natural (−)-fisetinidol-(4,8)-(−)-epicatechin profisetinidins
1990; Elsevier BV; Volume: 29; Issue: 1 Linguagem: Inglês
10.1016/0031-9422(90)89049-f
ISSN1873-3700
AutoresJan P. Steynberg, Johann F. W. Burger, Johannes C. S. Malan, Annemarie Cronjé, Desmond A. Young, Daneel Ferreira,
Tópico(s)Phytochemistry and Biological Activities
ResumoThe natural occurrence of the first profisetinidins associated with (−)-epicatechin is demonstrated in the heartwood of three legumes. 1H NMR spectroscopy at 300 MHz permits assessment of the relative abundance of the predominant rotamers in each of the heptamethyl ether diacetates of the (−)-fisetinidol-(4α,8) and (4β,8)-(−)-epicatechins at ambient temperatures.
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