Gr. Pettit et al., ANTINEOPLASTIC AGENTS .362. ISOLATION AND X-RAY CRYSTAL-STRUCTURE OF DIBROMOPHAKELLSTATIN FROM THE INDIAN-OCEAN SPONGE PHAKELLIA-MAURITIANA, Journal of natural products, 60(2), 1997, pp. 180-183
Bioassay-guided isolation procedures using human tumor cell lines led
to isolation of dibromophakellstatin (4) from the Republic of Seychell
es sponge Phakellia mauritiana. The isolation, X-ray crystal structure
elucidation, absolute stereochemistry, and antineoplastic activity ha
ve been summarized. P. mauritiana was also found to contain dibromopha
kellin (1), debromohymenialosine (2), thymidine, deoxyuridine, and thy
mine.