Application of benzyl-containing flavonoid lignan in preparation of medicament for treating hepatitis B
A technology of flavonoid lignans and uses is applied in the application field of benzyl flavonoid lignans for preparing medicines for treating hepatitis B, can solve the problem that there is no anti-hepatitis B virus medicine for hepatitis B virus infectious diseases, etc., and achieves a clear industrialization prospect. , the preparation method is simple and feasible, and the source of raw materials is easy to obtain the effect
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Embodiment 1
[0025] Example 1: Compound (±)-2-[2,3-dihydro-3-(3-benzyloxy-4-hydroxyphenyl)-2-hydroxymethyl-1,4-benzodioxane Preparation of Cyclo-6]-2,3-dihydro-3,5,7-trihydroxy-4H-1-benzopyran-4-one
[0026] The present invention has prepared the flavonoid lignan compound shown in formula (1) with de novo synthesis method, in addition to this method, can also directly carry out oxidative coupling reaction with the coniferyl alcohol substituted by commercially available pacitaxel and benzyloxy group, The compound of formula (1) is generated in one step. The instruments and reagents used include: Shimadzu UV-240 ultraviolet spectrophotometer for UV spectrum measurement; H NMR spectrum 1 H-NMR is measured by INOVA type superconducting nuclear magnetic resonance spectrometer (VARIAN INOVA-400MHz) (tetramethylsilyl ether TMS is the internal standard); (100-200, 200-300 and 300-400 mesh) and silica gel GF254 (10-40 mesh) for thin layer chromatography are all produced by Qingdao Ocean Chemical...
Embodiment 2
[0039] Example 2: Inhibitory Effect of Compound (1) on Hepatitis B e Antigen (HBeAg) Secreted by HepG2.2.15 Cells
[0040] 2.1 Cell culture:
[0041] HepG2.2.15 cells were cultured in DMEM medium containing 10% inactivated fetal bovine serum, 100 U / ml penicillin and 100 U / ml streptomycin, 100 μg / ml G418 at 37°C, 5% CO 2 , cultured in an incubator with 100% relative humidity.
[0042] 2.2 The inhibitory effect of the compound of formula (1) on HepG2.2.15 cell growth was measured by MTT method:
[0043] Take the HepG2.2.15 cells in the logarithmic growth phase, and dilute the cells to 1×10 with medium 5 cells / ml, seeded in 96-well cell culture plate, 100 μl per well, at 37°C, 5% CO 2 After 24 hours in an incubator with 100% relative humidity, add compound (1) diluted with medium, the concentration is 1000 μg / ml, 200 μg / ml, 40 μg / ml and 8 μg / ml, 200 μg / ml in each well microliter, each concentration was set up in triplicate, placed at 37°C, 5% CO 2 , cultivated in an incuba...
Embodiment 3
[0050] Example 3: Inhibition of the replication of hepatitis B virus deoxyribonucleic acid (HBV DNA) secreted by the compound of formula (1) to HepG2.2.15 cells
[0051] 3.1 Cell culture: the method is the same as in Example 2.
[0052] 3.2 The inhibitory effect of the flavonoid lignan compound represented by formula (1) on the growth of HepG2.2.15 cells was determined by MTT method: the method is the same as that in Example 2.
[0053] 3.3 The flavonoid lignan compounds shown in the assay formula (1) inhibit the replication of hepatitis B virus deoxyribonucleic acid (HBV DNA): get the HepG2.2.15 cells in the logarithmic growth phase, and use the culture medium to dilute the cells to 1 ×10 5 cells / ml, seeded in 96-well cell culture plate, 100 μl per well, at 37°C, 5% CO 2 After cultivating in an incubator with 100% relative humidity for 24 hours, add the flavonoid lignan compound shown in the formula (1) diluted with the culture medium, the concentrations are respectively ...
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