Dr. Beukes et al., DILEMMAONES A-C, UNUSUAL INDOLE ALKALOIDS FROM A MIXED COLLECTION OF SOUTH-AFRICAN SPONGES, Journal of natural products, 61(5), 1998, pp. 699-701
Three indole alkaloids, dilemmaones A-C (1-3), were isolated from a mi
xture of sponges that was collected near;Cape Town, South Africa. The
structures of dilemmaones A-C (1-3) were elucidated by interpretation
of spectroscopic data. The dilemma caused by faulty differentiation of
similar specimens in the field is discussed in detail.