A new stilbene dimer, heimiol A was isolated from the heartwood of Neobalan
ocarpus heimii. in addition to the four known oligostilbenoids, balanocarpo
l. copalliferol A, hopeaphenol and vaticaphenol A. The structures and relat
ive configuration were established by means of 2D NMR spectroscopy includin
g COSY, HMQC, HMBC and NOESY. (C) 2001 Published by Elsevier Science Ltd.