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2009•Planta MedicaRequires access

Antifungal Triterpene Glycosides from the Sea CucumberHolothuria (Microthele) axiloga

Weihua Yuan, Yanghua Yi, Ren-Xiang Tan, Zenglei Wang, Guo‐Quan Sun, Mei Xue, Hongwei Zhang, Haifeng Tang

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Abstract

Three new holostan-type triterpene glycosides, arguside F (1), impatienside B (2), and pervicoside D (3), together with a known saponin, holothurin B ( 4) were isolated from the sea cucumber Holothuria (Microthele) axiloga H. L. Clark. On the basis of spectroscopic data and chemical reactions, the structures of the new compounds were elucidated. Compound 2 showed significant antifungal activities against six strains (1 < or = MIC(80) < or = 4 microg/mL). The stereochemistry of holothurin B (4) isolated from the title sea cucumber was also solved through X-ray diffraction analysis.

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What this paper is about

Three new holostan-type triterpene glycosides, arguside F (1), impatienside B (2), and pervicoside D (3), together with a known saponin, holothurin B ( 4) were isolated from the sea cucumber Holothuria (Microthele) axiloga H. L. Clark. On the basis of spectroscopic data and chemical reactions, the structures of the new compounds were elucidated. Compound 2 showed significant antifungal activities against six strains (1 < or = MIC(80) < or = 4 microg/mL). The stereochemistry of holothurin B (4) isolated from the title sea cucumber was also solved through X-ray diffraction analysis.

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Available abstract

Three new holostan-type triterpene glycosides, arguside F (1), impatienside B (2), and pervicoside D (3), together with a known saponin, holothurin B ( 4) were isolated from the sea cucumber Holothuria (Microthele) axiloga H. L. Clark. On the basis of spectroscopic data and chemical reactions, the structures of the new compounds were elucidated. Compound 2 showed significant antifungal activities against six strains (1 < or = MIC(80) < or = 4 microg/mL). The stereochemistry of holothurin B (4) isolated from the title sea cucumber was also solved through X-ray diffraction analysis.

Key concepts: Sea cucumber, Triterpene, Saponin, Glycoside, Antifungal, Stereochemistry, Traditional medicine, Cucurbitaceae

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