Application of dendranthema morifolium extract in preparation of antitumor drugs
A technology of anti-tumor drugs and extracts, applied in the field of medicine, can solve the problems of unresearched medicinal and edible value, etc., and achieve the effect of enriching natural drug storehouse resources and having obvious effects.
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Embodiment 1
[0044] The preparation of embodiment 1 hyperthrin A
[0045] Weigh 6 kg of dried chrysanthemum, carry out reflux extraction with 50 L of 95% ethanol, extract for 1.5 h, filter, remove the solvent in the filtrate to obtain an ethanol extract, carry out silica gel column chromatography on the ethanol extract, and use dichloromethane-95 % Methanol for gradient elution, the eluent used dichloromethane-95% and methanol 100:0, 90:1, 10:1, 0:1 in turn, and collected dichloromethane-95% and methanol 90:1 The eluate yielded Fr.10. Fr.10 was eluted sequentially by silica gel column chromatography (dichloromethane: 95% methanol 60:1), preparative thin-layer chromatography (dichloromethane: 95% methanol 10:1) development and silica gel column chromatography (dichloromethane:95% methanol 12:1) was separated to obtain stracethrin A (186.5 mg). For the NMR, MS, IR, and UV spectra of Sturgeon A, see Figure 1 to Figure 13 .
Embodiment 2
[0046] The preparation of embodiment 2 ercedinol B
[0047]Weigh 6 kg of dried chrysanthemum, carry out reflux extraction with 50 L of 95% ethanol, extract for 1.5 h, filter, remove the solvent in the filtrate to obtain an ethanol extract, carry out silica gel column chromatography on the ethanol extract, and use dichloromethane-95 Gradient elution with % methanol, the eluent used dichloromethane-95% and methanol 100:0, 90:1, 10:1, 0:1 in sequence, and collected dichloromethane-95% and methanol 90:1 for elution solution, to obtain Fr.10. Fr.10 was eluted sequentially by silica gel column chromatography (dichloromethane: 95% methanol 60:1), ODS open column chromatography (methanol-water 15:85 to 90:10 gradient elution) and silica gel column chromatography Analysis (dichloromethane: ethyl acetate ratio of 6:1) was separated to obtain stracethrin B (123.4 mg). For the NMR, MS, IR, and UV spectra of Sturgeon B, see Figure 14 ~ Figure 26 .
Embodiment 3
[0048] Example 3 Sturgeonol A and B inhibit the proliferation of Hela human cervical cancer cells in vitro
[0049] 3-(4,5-Dimethylthiazole-2)-2,5-diphenyltetrazolium bromide (MTT) detection of cytotoxic effect of striathrin A and B: Hela human cervical cancer cells containing 1% penicillin-streptomycin solution, 10% fetal bovine serum in DMEM medium, placed at 37°C, 5% CO 2 cultured in an incubator. Take Hela human cervical cancer cells in the logarithmic growth phase, discard the old culture medium, add trypsin to digest, add the culture medium and pipette repeatedly to make the cells break away from the bottle wall, put them in a centrifuge tube, centrifuge at 1000r / min for 5min, discard Remove the supernatant; add an appropriate amount of culture medium, and pipette several times to suspend the cells in the culture medium. Place the cell solution in a sterile dish and pipette evenly, count on the cell counting board to adjust the cell concentration to 5×10 4 cells / mL, i...
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