Four new alkaloids, polynemoralines A (1), B (2), C (3), and D (4), were isolated from the branches and leaves of Polyalthia nemoralis A DC. The structures of 1-4 were elucidated mainly on the basis of spectroscopic methods. The structure of 4 was confirmed by X-ray diffraction analysis.
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Univ Yaounde 1, Fac Sci, Dept Organ Chem, Lab Med Chem & Pharmacognosy, Yaounde, Cameroon
Univ Toulouse 3, LSPCMIB, UMR 5068, F-31062 Toulouse 4, FranceUniv Yaounde 1, Fac Sci, Dept Organ Chem, Lab Med Chem & Pharmacognosy, Yaounde, Cameroon
Ngantchou, Igor
Nyasse, Barthelemy
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Univ Yaounde 1, Fac Sci, Dept Organ Chem, Lab Med Chem & Pharmacognosy, Yaounde, CameroonUniv Yaounde 1, Fac Sci, Dept Organ Chem, Lab Med Chem & Pharmacognosy, Yaounde, Cameroon
Nyasse, Barthelemy
Denier, Colette
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Univ Toulouse 3, LSPCMIB, UMR 5068, F-31062 Toulouse 4, FranceUniv Yaounde 1, Fac Sci, Dept Organ Chem, Lab Med Chem & Pharmacognosy, Yaounde, Cameroon
Denier, Colette
Blonski, Casimir
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Univ Toulouse 3, LSPCMIB, UMR 5068, F-31062 Toulouse 4, FranceUniv Yaounde 1, Fac Sci, Dept Organ Chem, Lab Med Chem & Pharmacognosy, Yaounde, Cameroon
Blonski, Casimir
Hannaert, Veronique
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de Duve Inst, Trop Dis Res Unit, B-1200 Brussels, BelgiumUniv Yaounde 1, Fac Sci, Dept Organ Chem, Lab Med Chem & Pharmacognosy, Yaounde, Cameroon
Hannaert, Veronique
Schneider, Bernd
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Max Planck Inst Chem Ecol, D-07745 Jena, GermanyUniv Yaounde 1, Fac Sci, Dept Organ Chem, Lab Med Chem & Pharmacognosy, Yaounde, Cameroon