Marine alkaloids .19. Three new alkaloids, securamines E-G, from the marine bryozoan Securiflustra securifrons

被引：46

作者：

Rahbaek, L ^{[1
]}

Christophersen, C ^{[1
]}

机构：

[1] UNIV COPENHAGEN,HC ORSTED INST,MARINE CHEM SECT,DK-2100 COPENHAGEN,DENMARK

来源：

JOURNAL OF NATURAL PRODUCTS | 1997年 / 60卷 / 02期

关键词：

D O I：

10.1021/np960602p

中图分类号：

Q94 [植物学];

学科分类号：

071001 ;

摘要：

Three new halogenated indole-imidazole alkaloids, securamines E (1), F (2), and G (3), have been isolated from the marine bryozoan Securiflustra securifrons. Their structures were determined by NMR and mass spectrometry. The new alkaloids, 1-3, can all be related to the earlier reported securamine C (4). Compound 1 has an additional bromine substituent at the indole ring system compared to 4; 2 and 4 are diastereomers differing in configuration at one of the four asymmetric carbon atoms; and 3 is a hydrogenated form of 4.

引用

页码：175 / 177

页数：3

共 3 条

[1] CHARTELLAMIDE-A AND CHARTELLAMIDE-B, HALOGENATED BETA-LACTAM INDOLE IMIDAZOLE ALKALOIDS FROM THE MARINE BRYOZOAN CHARTELLA-PAPYRACEA [J].

ANTHONI, U ;

BOCK, K ;

CHEVOLOT, L ;

LARSEN, C ;

NIELSEN, PH ;

CHRISTOPHERSEN, C .

JOURNAL OF ORGANIC CHEMISTRY, 1987, 52 (25) :5638-5639

[2] SECONDARY METABOLITES FROM MARINE BRYOZOANS - A REVIEW [J].

CHRISTOPHERSEN, C .

ACTA CHEMICA SCANDINAVICA SERIES B-ORGANIC CHEMISTRY AND BIOCHEMISTRY, 1985, 39 (07) :517-529

[3] Marine alkaloids .18. Securamines and securines, halogenated indole-imidazole alkaloids from the marine bryozoan Securiflustra securifrons [J].

Rahbaek, L ;

Anthoni, U ;

Christophersen, C ;

Nielsen, PH ;

Petersen, BO .

JOURNAL OF ORGANIC CHEMISTRY, 1996, 61 (03) :887-889

← 1 →