A new isoflavan, erythbidin A, was isolated from the wood of Erythrina
x bidwillii, together with three known isoflavans, phaseollinisoflava
n, 2'-methoxyphaseollinisoflavan, and 2'-O-methylphaseollidinisoflavan
and another pterocarpan, sandwicensin. Erythbidin A has a dimethylpyr
ene substitution at the 2',3'-position. (C) 1998 Elsevier Science Ltd.
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