1. Isolation and characterization of cytotoxic compounds from Euphorbia cornigera Boiss.
- Author
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Baloch, Imam Bakhsh and Baloch, Musa Kaleem
- Subjects
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ANIMAL experimentation , *ANTINEOPLASTIC agents , *BIOPHYSICS , *CHROMATOGRAPHIC analysis , *RESEARCH methodology , *MEDICINAL plants , *MICE , *NUCLEAR magnetic resonance spectroscopy , *PHARMACEUTICAL chemistry , *TOXICITY testing , *TUMORS , *ANALYTICAL chemistry , *PHARMACODYNAMICS , *DRUG therapy - Abstract
Methanolic extract of Euphorbia cornigera shoots was separated using HPLC, affording compounds 1-4. Their structures and relative stereochemistry were established after obtaining their spectroscopic (IR, 1H, 13C NMR COSY-45°, HOHAHA, HSQC, HMBC, NOESY, and mass measurement) data. On the basis of these data, the compounds were characterized as 3-O-(2,3-dimethylbutanoyl)-13-O-dodecanoyl-20-O-tetradecanoylingenol (1), 3-O-decanoyl-20-O-hexanoylingenol (2), 3-O-(2,3-dimethylbutanoyl)-13-O-dodecanoyl-20-O-hexadecanoylingenol (3), and 13-O-dodecanoyl-20-O-hexanoylingenol (4); among these compounds, two (1 and 2) were new metabolites while the rest (3 and 4) were known. The MTT cytotoxicity assay was carried out using amrubicin hydrochloride as a positive control. Compound 1 displayed IC50 as 5.0 and 2.9 μM against RAW and HT-29 cell lines, respectively, which is 5- and 1.5-folds stronger than the control with IC50 values of 25 and 4.36 μM, respectively. [ABSTRACT FROM AUTHOR]
- Published
- 2010
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