Flavonoid compound for preventing and treating diabetes and medicament application thereof
A technology for diabetes and drugs, applied in drug combinations, medical preparations containing active ingredients, pharmaceutical formulas, etc.
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Embodiment 1
[0049] Example 1. Preparation of homo phytoside and homo psyllium :
[0050] Get 10kg of dry litchi whole grass, pulverize, extract 3 times with 10 times the amount of 85% ethanol, combine the extracts, concentrate under reduced pressure, and extract the concentrated solution 4 times with 4 times the amount of petroleum ether and ethyl acetate successively , the ethyl acetate extract was concentrated under reduced pressure, subjected to multiple silica gel column chromatography, eluted with chloroform: methanol (100: 2), the eluate was collected, concentrated, and recrystallized to obtain high psyllium in a yield of was 0.08‰; eluted with chloroform:methanol (100:8) to obtain phytoside with a yield of 0.29‰.
Embodiment 2
[0051] Example 2: Preparation of homo phytoside and homo psyllium :
[0052]Get 10kg of dry litchi whole grass, pulverize, extract 3 times with 12 times the amount of 80% ethanol, combine the extracts, concentrate under reduced pressure, and extract the concentrated solution 4 times with 5 times the amount of petroleum ether and ethyl acetate successively , the ethyl acetate extract was concentrated under reduced pressure, subjected to multiple silica gel column chromatography, eluted with chloroform:acetone (100:5) to obtain high psyllium with a yield of 0.09‰; using chloroform:acetone (100 : 15) eluted, collected the eluate, concentrated and recrystallized to obtain phytoside with a yield of 0.34‰.
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