Antibacterial sphingolipid and steroids from the black coral Antipathes dichotoma |
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Authors: | Al-Lihaibi Sultan Samran Ayyad Seif-Eldin Nasr Shaher Fekry Alarif Walied Mohamed |
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Affiliation: | Department of Marine Chemistry, Faculty of Marine Sciences, King Abdulaziz University, Saudi Arabia. |
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Abstract: | From the black coral Antipathies dichotoma, a sphingolipid (2S*,3S*,4E,8E)-2N-[tetradecanoyl]-4(E),8(E)-icosadiene-1,3-diol (1) and a steroid (22E)-methylcholesta-5,22-diene-1α,3β,7α-triol (2) were isolated. Other known compounds, 3β,7α-dihydroxy-cholest-5-ene (3), (22E,24S),5α,8α-epidioxy-24-methylcholesta-6,22-dien-3β-ol (4) and (22E,24S),5α,8α-epidioxy-24-methylcholesta-6,9(11),22-trien-3β-ol (5). The structures were established on the basis of NMR spectroscopic analysis and comparison with literature. The antibacterial activity of five compounds was evaluated. |
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