THE CONSTITUENTS OF MARINE SPONGES .5. THE ISOLATION FROM CHELONAPLYSILLA-VIOLACEA (DENDROCERATIDA) OF APLYVIOLENE AND OTHER DITERPENES, AND THE DETERMINATION OF THE CRYSTAL-STRUCTURE OF APLYVIOLENE

被引:19
作者
HAMBLEY, TW [1 ]
POINER, A [1 ]
TAYLOR, WC [1 ]
机构
[1] UNIV SYDNEY,DEPT ORGAN CHEM,SYDNEY,NSW 2006,AUSTRALIA
关键词
D O I
10.1071/CH9901861
中图分类号
O6 [化学];
学科分类号
0703 ;
摘要
From the deep violet, encrusting marine sponge Chelonaplysilla violacea, two rearranged spon- gian diterpenes, aplyviolene, (1R′, l′S*, 3′aR*, 5R*, 6R’, 8R*, 8′aS*)-3-oxo-8-(1′, 4′, 4′-trimethyl-8′- methylenedecahydroazulen-1′-yl)-2, 7-dioxabicyclo[3.2.1]oct-6-yl acetate (1), the acetoxy derivative, aplyviolacene (2), (5R*, 8S*, 9S*, 10R*, 13S*, 14R*, 15S*, 16R*)-spongian-15, 16-diyl diacetate (3) and (5R*, 8S*, 9S*, 10R*, 13S*, 14R*)-spongian-16-one (4) were isolated. The structures were determined by spectroscopic methods, and the structure of aplyviolene was confirmed by a single-crystal X-ray determination. The crystal structure was refined to a residual of 0·036 for 1125 independent observed reflections. The crystals were orthorhombic, space group P212121 with a 8·098(1), b 11·628(1), c 21·774(3) Å. © 1990 ASEG.
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页码:1861 / 1870
页数:10
相关论文
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[2]  
SAHELDRICK GM, 1976, PROGR XRAY CRYSTAL S
[3]  
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