M. Ninomiya et al., Chemical study and absolute configuration of a new marine secospatane fromthe brown alga Dilophus okamurae, J ORG CHEM, 64(15), 1999, pp. 5436-5440
A new diterpene, dilkamural (1), of the secospatane class has been isolated
from the brown alga Dilophus okamurae Dawson, and its structure, including
absolute stereochemistry, has been determined by NMR spectroscopic and che
mical means.