The isolation and structure determination of cyclic peptide alkaloids, discarine-M and discarine-N, along with seven known cyclic peptide alkaloids, adouetine-Y', franganine, frangulanine, discarines-A, -B, -C, and -D from the root bark of Discaria americana are described. Structures were determined spectroscopically, especially using 2D NMR spectroscopic analysis. The crude methanol extract, the basic ether extract, and the alkaloids 6 and 7 also weakly inhibited growth of gram-negative and gram-positive bacteria. (C) 2004 Elsevier Ltd. All rights reserved.
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Univ Santiago de Compostela, Ctr Singular Invest Quim Biolox & Mat Mol CIQUS, Santiago De Compostela 15782, SpainUniv Santiago de Compostela, Ctr Singular Invest Quim Biolox & Mat Mol CIQUS, Santiago De Compostela 15782, Spain
Calvelo, Martin
Lamas, Alejandro
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Univ Santiago de Compostela, Ctr Singular Invest Quim Biolox & Mat Mol CIQUS, Santiago De Compostela 15782, SpainUniv Santiago de Compostela, Ctr Singular Invest Quim Biolox & Mat Mol CIQUS, Santiago De Compostela 15782, Spain
Lamas, Alejandro
Guerra, Arcadio
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Univ Santiago de Compostela, Ctr Singular Invest Quim Biolox & Mat Mol CIQUS, Santiago De Compostela 15782, SpainUniv Santiago de Compostela, Ctr Singular Invest Quim Biolox & Mat Mol CIQUS, Santiago De Compostela 15782, Spain
Guerra, Arcadio
Amorin, Manuel
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Univ Santiago de Compostela, Ctr Singular Invest Quim Biolox & Mat Mol CIQUS, Santiago De Compostela 15782, SpainUniv Santiago de Compostela, Ctr Singular Invest Quim Biolox & Mat Mol CIQUS, Santiago De Compostela 15782, Spain
Amorin, Manuel
Garcia-Fandino, Rebeca
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Univ Santiago de Compostela, Ctr Singular Invest Quim Biolox & Mat Mol CIQUS, Santiago De Compostela 15782, SpainUniv Santiago de Compostela, Ctr Singular Invest Quim Biolox & Mat Mol CIQUS, Santiago De Compostela 15782, Spain
Garcia-Fandino, Rebeca
Granja, Juan R.
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Univ Santiago de Compostela, Ctr Singular Invest Quim Biolox & Mat Mol CIQUS, Santiago De Compostela 15782, SpainUniv Santiago de Compostela, Ctr Singular Invest Quim Biolox & Mat Mol CIQUS, Santiago De Compostela 15782, Spain
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Univ Santiago de Compostela, Ctr Singular Invest Quim Biolox & Mat Mol CIQUS, Santiago De Compostela 15782, SpainUniv Santiago de Compostela, Ctr Singular Invest Quim Biolox & Mat Mol CIQUS, Santiago De Compostela 15782, Spain
Calvelo, Martin
Lamas, Alejandro
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Univ Santiago de Compostela, Ctr Singular Invest Quim Biolox & Mat Mol CIQUS, Santiago De Compostela 15782, SpainUniv Santiago de Compostela, Ctr Singular Invest Quim Biolox & Mat Mol CIQUS, Santiago De Compostela 15782, Spain
Lamas, Alejandro
Guerra, Arcadio
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Univ Santiago de Compostela, Ctr Singular Invest Quim Biolox & Mat Mol CIQUS, Santiago De Compostela 15782, SpainUniv Santiago de Compostela, Ctr Singular Invest Quim Biolox & Mat Mol CIQUS, Santiago De Compostela 15782, Spain
Guerra, Arcadio
Amorin, Manuel
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Univ Santiago de Compostela, Ctr Singular Invest Quim Biolox & Mat Mol CIQUS, Santiago De Compostela 15782, SpainUniv Santiago de Compostela, Ctr Singular Invest Quim Biolox & Mat Mol CIQUS, Santiago De Compostela 15782, Spain
Amorin, Manuel
Garcia-Fandino, Rebeca
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Univ Santiago de Compostela, Ctr Singular Invest Quim Biolox & Mat Mol CIQUS, Santiago De Compostela 15782, SpainUniv Santiago de Compostela, Ctr Singular Invest Quim Biolox & Mat Mol CIQUS, Santiago De Compostela 15782, Spain
Garcia-Fandino, Rebeca
Granja, Juan R.
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Univ Santiago de Compostela, Ctr Singular Invest Quim Biolox & Mat Mol CIQUS, Santiago De Compostela 15782, SpainUniv Santiago de Compostela, Ctr Singular Invest Quim Biolox & Mat Mol CIQUS, Santiago De Compostela 15782, Spain