Stelliferin riboside, a triterpene monosaccharide isolated from the Fijian sponge Geodia globostellifera

A triterpene monosaccharide, stelliferin riboside (1), was isolated from the Fijian marine sponge Geodia globostellifera. In addition, stellettins A and B (2, 3) were also isolated. This is the first report of a stelliferin from this species and the first example of a saccharide derivative of a stelliferin.