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Antitubercular constituents from the stem wood of Cinnamomum kotoense.

Journal of natural products (2005-09-27)
Fu-Chi Chen, Chien-Fang Peng, Ian-Lih Tsai, Ih-Sheng Chen
ZUSAMMENFASSUNG

Five new compounds, kotolactone A (1), kotolactone B (2), secokotomolide (3), kotodiol (4), and 2-acetyl-5-dodecylfuran (5), and 36 known compounds have been isolated from the stem wood of Cinnamomum kotoense. The structures of these new compounds were determined by means of spectroscopic analysis. The known butanolides, isoobtusilactone A (6) and lincomolide B (7), showed in vitro antitubercular activities with MIC values of 22.48 and 10.16 microM, respectively, against Mycobacterium tuberculosis 90-221387.

MATERIALIEN
Produktnummer
Marke
Produktbeschreibung

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Benzoesäure, ACS reagent, ≥99.5%
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Vanillin, ReagentPlus®, 99%
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Laurinsäure, ≥98%, FCC, FG
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4-Hydroxybenzaldehyd, 98%
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3,4-Dihydroxy-benzoesäure, ≥97.0% (T)
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Mettler-Toledo Kalibriersubstanz ME 18555, Benzoesäure, analytical standard, (for the calibration of the melting point system), traceable to primary standards (LGC)
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Schmelzpunktstandard 121-123°C, analytical standard
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Vanillin, natural, ≥97%, FCC, FG
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Laurinsäure, 98%
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Rifampicin, suitable for plant cell culture, BioReagent, ≥95% (HPLC), powder or crystals
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Vanillin, ≥97%, FCC, FG
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Benzoesäure, meets analytical specification of Ph. Eur., BP, USP, FCC, E210, 99.5-100.5% (alkalimetric)
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Benzoesäure, reference material for titrimetry, certified by BAM, >99.5%
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Laurinsäure, natural, ≥98%, FCC, FG
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Dodecansäure, ≥99% (GC/titration)
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Benzoesäure, ≥99.5%, FCC, FG
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Benzoesäure, ReagentPlus®, 99%
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4-Hydroxybenzaldehyd, ≥97%, FG
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Vanillin, tested according to Ph. Eur.
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Benzoesäure, puriss. p.a., ACS reagent, reag. Ph. Eur., ≥99.9% (alkalimetric)
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Syringaldehyd, ≥98%, FG
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Kalibriersubstanz von Mettler Toledo, ME 51143093, Vanillin, traceable to primary standards (LGC)
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Benzoesäure, TraceCERT®, Manufactured by: Sigma-Aldrich Production GmbH, Switzerland
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Dodecansäure, analytical standard
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4-Hydroxybenzaldehyd, ≥95.0% (HPLC)
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Benzoesäure, purified by sublimation, ≥99%
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2-Acetyl-5-methylfuran, ≥98%, FG