Preparation method of polyhydroxy sterol monomeric compound and application
A technology for polyhydroxy sterols and compounds, which is applied in the application field of polyhydroxy sterol monomer compounds, can solve problems such as the anti-artemia activity of chemical components that have not yet been seen, and achieve the effects of simple preparation method, high efficiency and shortening cycle.
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[0013] Preparation:
[0014] (1) Take fresh sea squirts with a wet weight of 1.5 kg, homogenize them in a tissue masher, extract them four times with 95% ethanol ultrasonic waves, each time for 30 minutes, combine the extracts, and concentrate the extracts in a rotary evaporator to 35 When the thermal relative density at ℃ is 1.1-1.4, 1.5g of the extract is obtained. Disperse the extract with 1500g of water. After dispersion, extract with an equal amount of ethyl acetate. When the extract is concentrated under reduced pressure to 35℃, the thermal relative density is 1.1- At 1.4, 700.0 mg of ethyl acetate phase extract was obtained;
[0015] (2) Dissolve the ethyl acetate phase extract fully with methanol, use Sephadax LH-20 gel column chromatography, methanol elution, then use RP-18 reverse phase silica gel column chromatography, methanol / water concentration is respectively 30% , 40%, 50%, 60%, 70%, 80%, 90%, 100% for gradient elution, and finally preparative high performanc...
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