New cytotoxic halogenated sesquiterpenes from the Egyptian sea hare, Aplysia oculifera

被引:15
|
作者
Hegazy, Mohamed-Elamir F. [1 ,2 ]
Moustfa, Alaa Y. [3 ]
Mohamed, Abou El-Hamd H. [4 ]
Alhammady, Montaser A. [5 ]
Elbehairi, Serag Eldin I. [6 ]
Ohta, Shinji [7 ]
Pare, Paul W. [8 ]
机构
[1] Natl Res Ctr, Chem Med Plants Dept, Giza 12622, Egypt
[2] Natl Res Ctr, Ctr Excellence Adv Sci, Giza 12622, Egypt
[3] Sohag Univ, Fac Sci, Dept Zool, Sohag, Egypt
[4] Aswan Univ, Fac Sci, Dept Chem, Aswan, Egypt
[5] Natl Inst Oceanog & Fisheries, Red Sea Branch, Hurghada, Egypt
[6] Egyptian Org Biol Prod & Vaccines, Giza, Egypt
[7] Hiroshima Univ, Grad Sch Biosphere Sci, Higashihiroshima 7398521, Japan
[8] Texas Tech Univ, Dept Chem & Biochem, Lubbock, TX 79409 USA
关键词
Aplysia oculifera; Opisthobranch; Halogenated sesquiterpenes; Cytotoxicity; MARINE NATURAL-PRODUCTS; DACTYLOMELA; LAURENCIA;
D O I
10.1016/j.tetlet.2014.01.096
中图分类号
O62 [有机化学];
学科分类号
070303 ; 081704 ;
摘要
Two new sesquiterpenes, oculiferane (1) and epi-obtusane (2) have been isolated and identified from an acetone extract of the digestive gland of the sea hare, Aplysia oculifera. The structures were elucidated by spectroscopic analysis including HREIMS, H-1, C-13, DEPT, H-1-H-1 COSY, HMQC, and HMBC NMR; the relative configuration was confirmed by X-ray analysis. Compounds 1 and 2 exhibited cytotoxic activity in vitro against several human cancer cell lines with IC50 values in the low mu g/ml range. (C) 2014 Elsevier Ltd. All rights reserved.
引用
收藏
页码:1711 / 1714
页数:4
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