B. Harrison et al., THE STRUCTURE AND BIOGENETIC ORIGIN OF (-)HALICYCLAMINE-B FROM A XESTOSPONGIA SPONGE, Tetrahedron letters, 37(51), 1996, pp. 9151-9154
A new tetracyclic diamine, (-) halicyclamine B (1), has been isolated
from the sponge Xestospongia sp. and its structure was elucidated from
NMR and X-ray crystallography data. Some biogenetic relationships are
proposed between 1 and other polycyclic diamines recently reported fr
om sponges. Copyright (C) 1996 Elsevier Science Ltd