A NEW STEROIDAL ALKALOID FROM A MARINE SPONGE CORTICIUM SP

Citation
S. Demarino et al., A NEW STEROIDAL ALKALOID FROM A MARINE SPONGE CORTICIUM SP, Tetrahedron letters, 39(41), 1998, pp. 7611-7614
Citations number
5
Categorie Soggetti
Chemistry Inorganic & Nuclear
Journal title
ISSN journal
00404039
Volume
39
Issue
41
Year of publication
1998
Pages
7611 - 7614
Database
ISI
SICI code
0040-4039(1998)39:41<7611:ANSAFA>2.0.ZU;2-Q
Abstract
Two new steroidal alkaloids 3 alpha-amino-23,29-imino-B(9a)-homo-19-no r-5 alpha-stigmasta-1(10),7,9(11),23(N)-tetraene (1) and 3 alpha-amino -23,29-imino-B(9a)-homo-19-nor-5 alpha-stigmasta-1(10),7,23(N)-triene (2) have been isolated from a Pacific marine sponge Corticium sp. The structures of compounds 1 and 2 were defined by spectral methods and m ainly 1D and 2D NMR experiments. (C) 1998 Published by Elsevier Scienc e Ltd. All rights reserved.