La. Mcdonald et al., BOTRYLLAMIDES A-D, NEW BROMINATED TYROSINE DERIVATIVES FROM STYELID ASCIDIANS OF THE GENUS BOTRYLLUS, Tetrahedron, 51(18), 1995, pp. 5237-5244
Four new bromotyrosine derivatives, botryllamides A-D (1-4) were isola
ted from the styelid ascidian Botryllus sp. from Siquijor Is., Philipp
ines, and from Botryllus schlosseri from the Great Barrier Reef, Austr
alia. Their structures were deduced from 1D and 2D NMR spectral data.