期刊
JOURNAL OF NATURAL PRODUCTS
卷 65, 期 3, 页码 295-298出版社
AMER CHEMICAL SOC
DOI: 10.1021/np010259a
关键词
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Three new indolocarbazole alkaloids, 3-hydroxy-4'-N-methylstaurosporine (3), 3-hydroxy-4'-N-demethy1staurosporine (4), and 3'-demethoxy-3'-hydroxy-4'-N-demethylstaurosporine (5), were isolated from the marine ascidian Eudistoma toealensis and its predatory flatworm Pseudoceros sp. in addition to two known staurosporines. The structures were determined by 1D and 2D homonuclear and H-1-detected heteronuclear NMR spectroscopy and from comparisons with published data. CD measurements for these five staurosporine derivatives, as well as the previously described seven staurosporines, are reported, confirming that all derivatives possess the 2'S,3'R,4'R,6'R configuration.
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