Novel polycyclic guanidine alkaloids from two marine sponges of the genus Monanchora
Novel polycyclic guanidine alkaloids from two marine sponges of the genus Monanchora
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DOI:
10.1021/np990403g
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发表时间:
2000-02-01
影响因子:
5.1
通讯作者:
Van Soest, RWM
中科院分区:
文献类型:
--
作者:
Braekman, JC;Daloze, D;Van Soest, RWM
Two marine sponges of the genus Monanchora (Poecilosclerida, Crambeidae) have been found to contain new polycyclic guanidine alkaloids bearing the (5,6,8b)-triazaperhydroacenaphthylene skeleton. Their structures have been determined by detailed spectroscopic analysis. Dehydrobatzelladine C (1) has been isolated from M. arbuscula and crambescidins 359 (2) and 431 (3) from M. unguiculata. The chemotaxonomic implications of these findings are discussed.