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Cytotoxic linear acetylenes from a marine sponge Pleroma sp.
被引:5
作者:
Takanashi, Emi
[1
]
Takada, Kentaro
[1
]
Hashimoto, Masahiro
[2
]
Itoh, Yoshiyuki
[2
]
Ise, Yuji
[3
]
Ohtsuka, Susumu
[4
]
Okada, Shigeru
[1
]
Matsunaga, Shigeki
[1
]
机构:
[1] Univ Tokyo, Grad Sch Agr & Life Sci, Lab Aquat Nat Prod Chem, Bunkyo Ku, Tokyo 1138657, Japan
[2] Japan JEOL Ltd, Akishima, Tokyo 1968558, Japan
[3] Nagoya Univ, Sugashima Marine Biol Lab, Toba, Mie 5170004, Japan
[4] Hiroshima Univ, Takehara Marine Sci Stn, Takehara, Hiroshima 7250024, Japan
来源:
关键词:
Sponge;
Cytotoxic;
Linear acetylene;
Structure elucidation;
ABSOLUTE-CONFIGURATION;
NATURAL-PRODUCTS;
A-F;
POLYACETYLENES;
MIYAKOSYNE;
D O I:
10.1016/j.tet.2015.10.062
中图分类号:
O62 [有机化学];
学科分类号:
070303 ;
081704 ;
摘要:
Bioassay-guided fractionation of the extract of the rare deep-sea marine sponge Pleroma sp. afforded seven new linear acetylenes, yakushynols A-F (1-6) and neopetroformyne E (7). The structures of 1-7 were determined by a combination of the analysis of spectroscopic data and chemical derivatization. Compounds 1-6 are the first examples of the sponge-derived acetylenes of the size of duryne with oxidation at the sixth carbon from the terminus. Compounds 1-5 and 7 exhibited moderate cytotoxic activity. A biosynthetic route of neopetroformyne A was inferred from the structural transition among sponge-derived linear acetylenes. (C) 2015 Elsevier Ltd. All rights reserved.
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页码:9564 / 9570
页数:7
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