Mammoside J

Operculinic acid A

(11S)-11-[[2-O-[4-O-(4-O-α-L-Rhamnopyranosyl-3-O-β-D-glucopyranosyl-α-L-rhamnopyranosyl)-α-L-rhamnopyranosyl]-β-D-fucopyranosyl]oxy]hexadecanoic acid