Saltar al contenido

Antitubercular constituents from the stem wood of Cinnamomum kotoense.

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

RESUMEN

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.

MATERIALES

Referencia del producto

Marca

Descripción del producto

Sigma-Aldrich

Rifampicina, ≥95% (HPLC), powder or crystals

Sigma-Aldrich

Lauric acid, ≥98%, FCC, FG

Sigma-Aldrich

4-Hydroxybenzaldehyde, 98%

Sigma-Aldrich

3,4-Dihydroxybenzoic acid, ≥97.0% (T)

Sigma-Aldrich

Rifampicina, suitable for plant cell culture, BioReagent, ≥95% (HPLC), powder or crystals

Sigma-Aldrich

Benzoic acid, ACS reagent, ≥99.5%

Sigma-Aldrich

Dodecanoic acid, 98%

Sigma-Aldrich

Vainillina, ≥97%, FCC, FG

Sigma-Aldrich

Vainillina, ReagentPlus^®, 99%

Sigma-Aldrich

Vainillina, natural, ≥97%, FCC, FG

Sigma-Aldrich

Lauric acid, natural, ≥98%, FCC, FG

Sigma-Aldrich

Benzoic acid, ≥99.5%, FCC, FG

Sigma-Aldrich

4-Hydroxybenzaldehyde, ≥97%, FG

Sigma-Aldrich

Dodecanoic acid, ≥99% (GC/titration)

Supelco

Benzoic acid, analytical standard, (for the calibration of the melting point system), traceable to primary standards (LGC)

Sigma-Aldrich

4-Hydroxybenzaldehyde, ≥95.0% (HPLC)

Sigma-Aldrich

Syringaldehyde, ≥98%, FG

Sigma-Aldrich

Benzoic acid, natural, ≥99.5%, FCC, FG

Sigma-Aldrich

Benzoic acid, meets analytical specification of Ph. Eur., BP, USP, FCC, E210, 99.5-100.5% (alkalimetric)

Supelco

Melting point standard 121-123°C, analytical standard

Supelco

Benzoic acid, reference material for titrimetry, certified by BAM, >99.5%

Sigma-Aldrich

2-Acetyl-5-methylfuran, ≥98%, FG

Sigma-Aldrich

Benzoic acid, puriss. p.a., ACS reagent, reag. Ph. Eur., ≥99.9% (alkalimetric)

Sigma-Aldrich

Benzoic acid, ReagentPlus^®, 99%

Supelco

Vainillina, traceable to primary standards (LGC)

Supelco

Dodecanoic acid, analytical standard

Sigma-Aldrich

Vainillina, tested according to Ph. Eur.

Supelco

Benzoic acid, Standard for quantitative NMR, TraceCERT^®, Manufactured by: Sigma-Aldrich Production GmbH, Switzerland

Sigma-Aldrich

Benzoic acid, purified by sublimation, ≥99%