Ew. Schmidt et al., MOZAMIDE-A AND MOZAMIDE-B, CYCLIC-PEPTIDES FROM A THEONELLID SPONGE FROM MOZAMBIQUE, Journal of natural products, 60(8), 1997, pp. 779-782
A sponge of the lithistid family Theonellidae from southern Mozambique
contained the known compound aurantoside A (1) together with two new
cyclic peptides, mozamides A (2) and B (3). The structures and absolut
e configurations of mozamides A and B, which contain a rare ureido gro
up, were determined by interpretation of spectral data and chiral GC-M
S analysis of the amino acids resulting from acid-catalyzed hydrolysis
.