“…A comparison of 5's NMR data (Table 1) with those reported by Machida et al [9] led to the identification of 5 as (7S,8R)-5methoxydehydro-diconiferyl alcohol-4-O--D-glucopyranoside. The NMR data of 6 (Table 1) were superimposable with those reported for 4-O-lariciresinol-glucoside [10] Cytotoxicity of lignans can be associated with different mechanisms such as topoisomerase II inhibition, anti-tubulin, oestregonic and anti-angiogenic effects. Since compound 6 exhibits a selective and potent cytotoxicity compared to the positive control doxorubicin, further studies are warranted to investigate its toxicity against different cancer cell lines as well as its mechanism of action.…”
O-β-D-glucopyranoside (8) by spectroscopic methods including 1 Hand 13 C-NMR and HR-MS experiments, and by comparison with literature values. Compounds 1-7 are reported for the first time from Astragalus taxa. All of the compounds were tested for their cytotoxic activities against a number of cancer cell lines. Among them, only 6 exhibited significant activity against human colon carcinoma (HT-29) at 2.69 M concentration.
“…A comparison of 5's NMR data (Table 1) with those reported by Machida et al [9] led to the identification of 5 as (7S,8R)-5methoxydehydro-diconiferyl alcohol-4-O--D-glucopyranoside. The NMR data of 6 (Table 1) were superimposable with those reported for 4-O-lariciresinol-glucoside [10] Cytotoxicity of lignans can be associated with different mechanisms such as topoisomerase II inhibition, anti-tubulin, oestregonic and anti-angiogenic effects. Since compound 6 exhibits a selective and potent cytotoxicity compared to the positive control doxorubicin, further studies are warranted to investigate its toxicity against different cancer cell lines as well as its mechanism of action.…”
O-β-D-glucopyranoside (8) by spectroscopic methods including 1 Hand 13 C-NMR and HR-MS experiments, and by comparison with literature values. Compounds 1-7 are reported for the first time from Astragalus taxa. All of the compounds were tested for their cytotoxic activities against a number of cancer cell lines. Among them, only 6 exhibited significant activity against human colon carcinoma (HT-29) at 2.69 M concentration.
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