Triterpene compounds separated from seed of cowherb of Chinese traditional medicine and uses thereof
A kind of Wang Bu Liuxing, compound technology, applied in the field of triterpenoids
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Embodiment 1
[0041] Select 5 kg of the processed wang buliu xing medicinal material, reflux extraction with 60 liters of 85% (V / V) industrial ethanol three times, each time for 2 hours, combine the extracts, and recover the ethanol by vacuum distillation to obtain 250 g of extract. After the extract is mixed with 300 grams of 100-200 mesh silica gel, it is eluted and separated by silica gel column chromatography with acetone and methanol respectively. Collect the methanol eluate, recover the solvent under reduced pressure until dry, and desugar through a D101 macroporous resin column to obtain 45 grams of extract. Get 2 grams of this extract and be mixed with 1 g / ml aqueous solution, adopt semi-preparative high-performance liquid chromatography (Inertsil ODS-3 column: 1.0 * 25 centimeters; 30-38% CH 3 CN-water (containing 0.6% trifluoroacetic acid) is the elution system; flow rate: 3.5 ml / min; UV detector (210 nm); injection volume: 200 microliters) for separation, collect the correspondin...
Embodiment 2
[0043] Select 5 kg of the processed wang buliu xing medicinal material, reflux extract with 40 liters of 60% (V / V) industrial ethanol three times, each time for 2 hours, combine the extracts, and recover the ethanol by vacuum distillation to obtain 260 g of extract. After the extract is mixed with 250 grams of 200-300 mesh silica gel, it is eluted and separated by silica gel column chromatography with acetone and methanol respectively. Collect the methanol eluent, recover the solvent under reduced pressure until dry, and desugar through a D101 macroporous resin column to obtain 50 grams of extract. Get 2 grams of this extract and be mixed with 1 g / ml aqueous solution, adopt semi-preparative high-performance liquid chromatography (Inertsil ODS-3 column: 1.0 * 25 centimeters; 60~65% CH 3 OH-water (containing 1.6% trifluoroacetic acid) elution system; flow rate: 1.5 ml / min; UV detector (210 nm); injection volume: 200 microliters) for separation, collect the corresponding fraction...
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