Yh. Choi et al., PERFRAGILIN-A AND PERFRAGILIN-B, CYTOTOXIC ISOQUINOLINEQUINONES FROM THE BRYOZOAN MEMBRANIPORA-PERFRAGILIS, Journal of natural products, 56(8), 1993, pp. 1431-1433
Detailed spectroscopic and cytotoxicity data are reported for two new
isoquinolinequinones, perfragilins A [1] and B [2], which were isolate
d from the bryozoan Membranipora perfragilis collected in South Austra
lia. Both compounds, which are speculated to be of microbial origin, c
ontain a relatively uncommon thiomethyl ether functionality.