The HRFABMS spectrum established the molecular formula as C48H76O17 and gave the molecular weight as 924.5086 (requires 924.5083). In the EIMS spectrum, the M+ of the aglycon was at m/z 454, and there were diagnostic peaks at m/z 287 and 219, indicating the presence of the additional tertiary methyl group at C-8 and the carbonyl group at C-3. The 1H-NMR spectrum showed the presence of seven tertiary methyl groups, the absence of the proton at C-3, and the same signals for the sugars’ protons. On the basis of these data, the new compound is 28-O- [R-L-rhamnopyranosyl(1f4)-O-â-D-glucopyranosyl(1f6)- â-D-glucopyranoside of â-oxoisoaleuritolic acid, which is named bodinitin D.