F. Cafieri et al., COMPLETE H-1 AND C-13 NMR ASSIGNMENT OF ENT-3-BETA,16-ALPHA-ATISANEDIOL, A CYTOTOXIC DITERPENE ISOLATED FROM THE SPONGE SPIRASTRELLA CUNCTATRIX, Magnetic resonance in chemistry, 33(4), 1995, pp. 286-289
Full assignment of the H-1 and C-13 NMR spectra of ent-atisane-3 beta,
16 alpha-diol, a cytotoxic diterpene isolated from the Caribbean spong
e Spirastrella cunctatrix, was achieved by extensive use of two-dimens
ional NMR spectroscopy and spectral simulation. This is the first comp
lete NMR characterization af an atisane terpene.