R. Watanadilok et al., Tetillapyrone and nortetillapyrone, two unusual hydroxypyran-2-ones from the marine sponge Tetilla japonica, J NAT PROD, 64(8), 2001, pp. 1056-1058
Extraction of the marine sponge Tetilla japonica from the Bay of Thailand f
urnished tetillapyrone and nortetilla one, two unusual tetrahydrofurylhydro
xypyran-2-ones, whose structures were established by NMR spectrometry and a
n X-ray analysis of tetillapyrone.