Preparation method of 2-acetylqueloside A reference substance
A technology of reference substance, acetyl, which is applied in the field of preparation of 2-Acetyroside A reference substance, can solve problems such as the influence of extraction rate without mentioning it, and achieve high reuse rate, easy crystallization, and high extraction rate Effect
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Embodiment 1
[0065] A preparation method of 2-acetyl lilyside A reference substance, comprising the following steps: step 1, extracting lily liquid; immersing lily bulbs, filtering, and combining the extracts to obtain a lily extract. In step 2, the crude product of 2-acetyl lilyside A is prepared; the lily extract obtained in step 1 is subjected to centrifugation, polymer adsorption chromatography, gradient elution and concentration to obtain the crude product of 2-acetyl lilyside A. Step 3, the preparation of 2-Acetyl Lilily glucoside A crude product is separated and purified by liquid phase; the crude 2-Acetyl Lily glucoside A obtained in Step 2 is dissolved, filtered through a microporous membrane, prepared by liquid phase separation and purification, concentrated and crystallized. 2-Acetyl lilyside A crude crystals were obtained. Step 4, acquisition of 2-acetyl lilyside A; 2-acetyl lilyside A is obtained by dissolving and standing for crystallization.
[0066] The steps of lily extra...
Embodiment 2
[0076] refer to Figure 1-Figure 10 As shown in , a preparation method of 2-acetyl lilyside A reference substance includes the following steps: step 1, extracting lily liquid; immersing lily bulbs, filtering, and combining the extracts, and obtaining a lily extract. In step 2, the crude product of 2-acetyl lilyside A is prepared; the lily extract obtained in step 1 is subjected to centrifugation, polymer adsorption chromatography, gradient elution and concentration to obtain the crude product of 2-acetyl lilyside A. Step 3, the preparation of 2-Acetyl Lilily glucoside A crude product is separated and purified by liquid phase; the crude 2-Acetyl Lily glucoside A obtained in Step 2 is dissolved, filtered through a microporous membrane, prepared by liquid phase separation and purification, concentrated and crystallized. 2-Acetyl lilyside A crude crystals were obtained. Step 4, acquisition of 2-acetyl lilyside A; 2-acetyl lilyside A is obtained by dissolving and standing for crys...
Embodiment 3
[0087] A preparation method of 2-acetyl lilyside A reference substance, comprising the following steps: step 1, extracting lily liquid; immersing lily bulbs, filtering, and combining the extracts to obtain a lily extract. In step 2, the crude product of 2-acetyl lilyside A is prepared; the lily extract obtained in step 1 is subjected to centrifugation, polymer adsorption chromatography, gradient elution and concentration to obtain the crude product of 2-acetyl lilyside A. Step 3, the preparation of 2-Acetyl Lilily glucoside A crude product is separated and purified by liquid phase; the crude 2-Acetyl Lily glucoside A obtained in Step 2 is dissolved, filtered through a microporous membrane, prepared by liquid phase separation and purification, concentrated and crystallized. 2-Acetyl lilyside A crude crystals were obtained. Step 4, acquisition of 2-acetyl lilyside A; 2-acetyl lilyside A is obtained by dissolving and standing for crystallization.
[0088] The steps of lily extra...
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