Lacrimal pineapple ketone diterpenoid compound and extraction method and application thereof
An extraction method and technology of diterpenes, which are applied in the separation/purification of carboxylic acid compounds, organic chemistry, drug combination and other directions, can solve the problems of few chemical components, unreported lung injury and depression, etc. The value of research and development, the effect of increasing the suppression level
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[0035] Step 1. Take 7.0 kg of dried herbal medicine powder of dwarf stalks and leaves of Zhuangyao stupa and use methanol with a volume concentration of 75% to 95% to extract 3 times at room temperature for 5 days each time, filter the combined filtrate, and recover the methanol. to obtain a concentrated extract;
[0036] Step 2: Suspend the concentrated extract in water, degreasing and extract 3 times with petroleum ether and extract with a volume ratio of 1:1; the obtained aqueous layer is extracted 3 times with ethyl acetate and a water layer with a volume ratio of 1:1 , the ethyl acetate extracts were combined and concentrated to obtain 500g of thick paste;
[0037] Step 3. The volume ratio of petroleum ether to acetone for thick paste is successively 20:1, 8:1, 6:1, 4:1, 3:1, 2:1 and 1:1, and gradient elution is carried out to obtain Seven sites were numbered as Fr-A, Fr-B, Fr-C, Fr-D, Fr-E, Fr-F and Fr-G sites, and the Fr-A site was repeatedly used silica gel, dextran g...
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