CN1699393A - Flavonoid glycoside compound and its preparing process - Google Patents
Flavonoid glycoside compound and its preparing process Download PDFInfo
- Publication number
- CN1699393A CN1699393A CN 200510026625 CN200510026625A CN1699393A CN 1699393 A CN1699393 A CN 1699393A CN 200510026625 CN200510026625 CN 200510026625 CN 200510026625 A CN200510026625 A CN 200510026625A CN 1699393 A CN1699393 A CN 1699393A
- Authority
- CN
- China
- Prior art keywords
- preparation
- homoeriodictyol
- column chromatography
- eriodictyol
- compound
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
Images
Landscapes
- Saccharide Compounds (AREA)
- Pharmaceuticals Containing Other Organic And Inorganic Compounds (AREA)
Abstract
The invention relates to a flavonoid glycoside compound and its preparing process, wherein the flavonoid glycosides compounds include homoeriodictyol-7,4'-bis-O-beta-D-homoeriodictyol 7,4'-di-O-beta-D-glucopyranoside) and eriodictyol-7,4'-bis-O-beta-D-eriodictyol 7,4'-di-O-beta-D-glucopyranoside). These compounds are mainly extracted from advanced plants through the steps of extracting by water, ethanol, methanol or acetone, concentrating, extracting, resin adsorbing and column chromatography.
Description
Technical field
The invention belongs to medicine and natural product chemistry field, be specifically related to flavonoid glycoside compound and preparation method thereof.
Background technology
Flavones and flavonoid glycoside are big class native chemical products; widely distributed in vegitabilia; such chemical product that extracts from plant has multiple physiologically actives such as protection cardiovascular and cerebrovascular, anti-inflammatory, anti-oxidant, male or female hormone sample effect; it is the main active ingredient of many herbal medicine; many novel plant medicines that are developed to are wherein arranged; as Ginkgo total flavones, soybean isoflavones etc.; obtain good result; but the researchist is still in continuous exploration; in the hope of obtaining the active ingredient of more this compounds, satisfy people's demand increasing to herbal medicine.
Summary of the invention
The object of the present invention is to provide flavonoid glycoside compound.
Another object of the present invention is to provide the method for separating the above-mentioned flavonoid glycoside compound of preparation from natural plant material.
A further object of the present invention is to provide the Application Areas of above-mentioned flavonoid glycoside compound.
The chemical name of flavonoid glycoside compound provided by the present invention is respectively Homoeriodictyol-7,4 '-two-(homoeriodictyol 7 for O-β-D-glucoside, 4 '-di-O-β-D-glucopyranoside, compound 1) and eriodictyol-7,4 '-two-(eriodictyol 7 for O-β-D-glucoside, 4 '-di-O-β-D-glucopyranoside, compound 2), its chemical structural formula is as follows:
1 R=OCH
3Homoeriodictyol
2 R=OH eriodictyols
Above-mentioned flavonoid glycoside compound has following chemistry and spectroscopy feature:
Compound 1: Homoeriodictyol, faint yellow unformed powder, hydrochloric acid-magnesium powder and Molish reaction all are positive AlCl
3Reaction is yellow-green fluorescence.UV (MeOH) λ
Max(nm): 286,326sh; IR υ
Max(KBr, cm
-1): 3423,2924,1641,1579,1524,1500,1448,1352,1296,1273,1198,1173,1115,1074,1022,864,816: high resolution mass spectrum provides molecular ion peak ESI-MS (m/z): 649.1740 ([M+Na]
+, calculated value: 649.1735), molecular formula C
28H
34O
16 1HNMR (DMSO-d
6, 500MHz) δ 12.05 (1H, d, J=2.2Hz, OH), 9.08 (1H, br s, OH), 9.03 (1H, br s, OH), 6.88 (1H, br s, H-2 '), (6.76 2H, br s, H-5 ' and H-6 '), 6.14 (1H, d, J=2.5Hz, H-8), 6.13 (1H, d, J=2.5Hz, H-6), 5.34 (1H, dd, J=12.5,3.0Hz, H-2) (1H, br d, J=12.5Hz, H-2), 4.97 (1H, dd, J=12.0,7.8Hz, H-1 "), 3.68 (1H, br d, J=3.6Hz, H-6 "
Eq), 3.65 (1H, br d, J=4.7Hz, H-6 "
Ax), 3.20-3.46 (4H, m, H-2 ", H-3 ", H-4 " and, H-5 "), 3.14 (1H, dd, J=17.1,12.5Hz, H
Trans-3), 2.73 (1H, dd, J=17.1,3.0Hz, H
Cis-3);
13CNMR (DMSO-d
6, 125MHz) data see Table 1; Determine that based on above data the chemical structure of compound 1 and name thereof are called Homoeriodictyol-7,4 '-two-O-β-D-glucoside (homoeriodictyol 7,4 '-di-O-β-D-glucopyranoside).
Compound 2: eriodictyol, faint yellow unformed powder, hydrochloric acid-magnesium powder and Molish reaction all are positive AlCl
3Reaction is yellow-green fluorescence.UV (MeOH) λ
Max(nm): 283,326sh; IR υ
Max(KBr, cm
-1): 3396,2926,1647,1578,1520,1446,1390,1367,1340,1300,1271,1234,1176,1090,1078,1047,1032,893,854,827; High resolution mass spectrum provides molecular ion peak ESI-MS (m/z): 635.158399 ([M+Na]
+, calculated value: 635.1578), molecular formula: C
27H
32O
16 1HNMR (DMSO-d
6, 500MHz) δ 12.05 (1H, d, J=5.0Hz, OH), 9.16 (1H, br s, OH), 7.11 (1H, br s, H-2 '), 6.92 (1H, d, J=8.3Hz, H-5 '), 6.79 (1H, d, J=8.3Hz, H-6 '), 6.17 (1H, d, J=2.0Hz, H-8), 6.13 (1H, d, J=2.0Hz, H-6), 5.49 (1H, dd, J=13.0,2.6Hz, H-2), 4.96 (1H, dd, J=13.0,7.80Hz, H-1 "), 3.79 (3H, s, OCH
3), 3.66 (1H, d, J=11.4Hz, H-6 "
Ax), 3.20-3.46 (4H, m, H-2 ", H-3 ", H-4 " and, H-5 "), 3.14 (1H, m, H
Trans-3), 2.76 (1H, dd, J=17.1,2.6Hz, H
Cis-3);
13CNMR (DMSO-d
6, 125MHz) data see Table 1; Determine that based on above data the chemical structure of compound 2 and name thereof are called eriodictyol-7,4 '-two-O-β-D-glucopyranoside (eriodictyol 7,4 '-di-O-β-D-glucopyranoside).
The high resolution mass spectrum of above-claimed cpd 1 and compound 2 (ESI-MS), hydrogen spectrum (
1HNMR) and carbon spectrum (
13CNMR) feature is respectively shown in accompanying drawing 1～accompanying drawing 6.
The hydrogen spectrum and the carbon spectrum signature of table 1. compound 1 and compound 2
| ??C | Compound 1 | Compound 2 | ||
| ??δ C | ??δ H | ??δ C | ??δ H | |
| ??2 ??3 ??4 ??5 ??6 ??7 ??8 ??9 ??10 ??1′ | ??78.6 ??42.1 ??196.9 ??165.2 ??96.6 ??165.3 ??95.5 ??162.6 ??103.2 ??132.0 | ??5.55d(11) ??2.78dd(6.7) ??3.43? ? ??6.13s ? ??6.18s | ??78.2 ??42.2 ??197.0 ??165.1 ??96.6 ??165.2 ??95.3 ??162.6 ??103.4 ??133.0 | ??5.48d(12.3) ??2.76d(16.9)? ? ? ? ??6.10s ??6.13s |
| ??2′ ????3′ ????4′ ????5′ ????6′ ????1″ ????2″ ????3″ ????4″ ????5″ ????6″ ????1 ??2 ??3 ??4 ??5 ??6 ??OCH 3 | ??111.4 ??148.9 ??146.7 ??115.2 ??119.3 ??99.5 ??73.0 ??77.0 ??69.5 ??76.3 ??60.5 ??99.6 ??73.2 ??77.0 ??69.6 ??76.8 ??60.6 ??55.8 | ??7.16d(1.2)? ? ? ??7.11d(8.5) ??7.00d(8.5) ??4.97d(8.5) ??3.26 ??3.27 ??3.15 ??3.27 ??3.45 ??4.93d(7.0) ??3.26 ??3.27 ??3.15 ??3.27 ??3.66 ??3.79s | ??114.5 ??147.0 ??145.5 ??116.7 ??117.6 ??99.5d ??73.0 ??77.0 ??69.5 ??75.9 ??60.8 ??102.2d ??73.3 ??77.2 ??69.8 ??76.3 ??60.5 | ??6.95s? ? ? ??7.12d(8.5) ??6.85d(8.5) ??4.97t(7.1) ??3.28 ??overlapped ??3.14 ??overlapped ??3.47 ??4.68d(4.5) ??3.20 ??overlapped ??3.14 ??overlapped ??3.68 |
Above-mentioned two neoflavone glycosides compounds mainly separate preparation from higher plant, wherein spermatophyte preferably, or Loranthaceae (Loranthaceae) Viscum (Viscum L.) plant.About scientific definition and the category of Loranthaceae and Viscum, referring to " Chinese Higher plant section belongs to dictionary " (revised edition) (Hou Kuanzhao compiles, Beijing: Science Press, 1984.12) and Chinese Plants will the 24th volume (Beijing: Science Press, 1986).The vegetable material that is used to prepare these two neoflavone glycosides compounds is generally stem branch and the leaf of these plants.
The preparation method of the flavonoid glycoside compound that the present invention proposes, concrete steps are:
(1) the higher plant raw material extracts with the water of 4-15 times of quality or aqueous ethanol, methyl alcohol or the acetone solvent of 10-100wt%;
(2) extracting solution is concentrated into thick medicinal extract after reclaiming solvent;
(3) the thick medicinal extract of above-mentioned acquisition is used ethers, ester class, chloroform, propyl carbinol organic solvent extraction successively, merges the n-butanol extraction part; Perhaps with behind the abundant agitation and dilution of thick medicinal extract water that is obtained, adopt nonpolar or low-pole macroporous adsorbent resin, adsorb, the aqueous ethanol wash-out of water, 20-50wt% is successively collected elutriant and is concentrated into dried then;
(4) with above-mentioned n-butanol extraction part or collect macroporous adsorbent resin 30-50wt% elutriant and be concentrated into dried product and get final product through column chromatography for separation.
During concrete enforcement, water that can 3-10 times of volume during above-mentioned thick medicinal extract extraction is used organic solvent extraction then with the abundant agitation and dilution of thick medicinal extract.According to practice result, the consumption that at every turn extracts organic solvent can be one of percentage of volume of water to 1/2nd, extracts 2-5 time and can obtain good result.
The macroporous adsorbent resin method same earlier with the water of above-mentioned amount with the abundant agitation and dilution of thick medicinal extract, filter then clear liquor, with the nonpolar or low-pole macroporous adsorbent resin of clear liquor by proper volume, as D101 etc., treat that whole clear liquors are by after the post bed, successively with the water of 3-5 times of column volume, the aqueous ethanol wash-out of 20wt%-50wt%.
Two compounds of the present invention mainly are present in wash-out stream part of 30-50wt%.Can adopt the further separating compound 1 of silica gel column chromatography, SephadexLH20 column chromatography or ODS column chromatography method, compound 2.According to two compound molecule polarity sizes, these those skilled in the art can obtain compound 1, compound 2 respectively from the column chromatography product.
Experimental result shows: when adopting silica gel column chromatography, eluent can adopt chloroform-methanol-water system to carry out gradient elution; When adopting Sephadex LH20 column chromatography, eluent can adopt methanol-water or alcohol-water system wash-out; When adopting the ODS column chromatography, eluent can adopt methanol-water or second eyeball-water system wash-out.
Among the present invention, the higher plant of plant material is a spermatophyte.
Among the present invention, the higher plant of plant material is the Loranthaceae spermatophyte.
Among the present invention, the Loranthaceae plant is a mistletoe.
Among the present invention, during extraction the heating 30-95 ℃ backflow 1-3 hour, extract united extraction liquid 1-3 time.
Among the present invention, extracting solution is an aqueous ethanol.
Among the present invention, the proportion that extracting solution is condensed into thick medicinal extract is 1.02-1.10.
Among the present invention, thick medicinal extract is used sherwood oil, ethyl acetate, propyl carbinol solvent extraction successively.
Among the present invention, behind the employing absorption with macroporous adsorbent resin, the aqueous ethanol wash-out of water, 20wt%, 30wt%, 40wt%, 50wt% is collected the 30-50wt% elutriant and is product successively.
Among the present invention, chromatographic separation adopts silica gel column chromatography, SephadexLH20 column chromatography or ODS column chromatography.
The purposes of new flavonoid glycoside compound of the present invention can be used as the application of pharmaceutical composition, and effect is satisfactory.
Compound of the present invention has good anti-inflammatory, anti-oxidant, hormone-like effect.Separating and extracting method is easy from higher plant, and raw material sources are extensive, and cost is not high.Medicines such as product of the present invention and Chinese medicine, Western medicine are made medicinal composition, have tempting application prospect.
Description of drawings
Fig. 1 is the high resolution mass spectrum figure of compound 1.
Fig. 2 be compound 1 hydrogen spectrum (
1HNMR) figure.
Fig. 3 be compound 1 carbon spectrum (
13CNMR) figure.
Fig. 4 is the high resolution mass spectrum figure of compound 2.
Fig. 5 be compound 2 hydrogen spectrum (
1HNMR) figure.
Fig. 6 be compound 2 carbon spectrum (
13CNMR) figure.
Fig. 7 is the extraction separation schema of the embodiment of the invention 1.
Embodiment
Below be described more specifically the present invention with specific embodiment
Vegetable material: the dry stem and branch with leaf of Loranthaceae mistletoe mistletoe (Viscus coloratum (Kom.) Nakai).
Method for separating and preparing: mistletoe stem and branch with leaf 2.0kg, with 95% ethanol 20L refluxing extraction twice, each 2 hours, united extraction liquid reclaimed ethanol and is concentrated into and do not have the alcohol flavor, and add entry and be adjusted to 4.0L, suction filtration, clear liquor passes through D
101Macroporous adsorptive resins (1.0Kg) is used the water, 20% of 4-5L, 40% aqueous ethanol wash-out successively, collects 40% wash-out part, is concentrated into dried.40% ethanol elution position gradation is separated repeatedly with Sephadex LH20, promptly get compound 1,2.Extraction separation schema such as accompanying drawing 7.
The scavenging(action) of embodiment 2. compounds 1 and 2 pairs of hydroxyl radical free radicals of compound and ultra-oxygen anion free radical
1. instrument and material
1.1 instrument:
UV-260 type spectrophotometer (Shimadzu), electronic balance (Sartorius), PHB-3 type acidometer (Sanxin), ER200D-SRC type electron paramagnetic resonance instrument, ER4111-VT changing device (Bruker).
1.2 reagent:
Xanthine (X), XOD (XO), 5-N-nitride (DMPO) and tea-polyphenol (EGCG) are available from U.S. Sigma company, and chlorination nitro blue tetrazolium reagent such as (NBT) is homemade analytical pure.
Test used compound 1 and compound 2 and be contriver's self-control, its chemical structure is determined errorless through hydrogen spectrum, carbon spectrum, UV spectrum and infrared spectra, and the HPLC method is measured purity more than 95%.
2. experimental technique
2.1 colorimetry (Fenton reaction) detects curculigoside to the OH scavenging(action)
The Fenton reaction is to produce the most frequently used reaction of hydroxyl radical free radical, is to utilize Fe
2+By H
2O
2Oxidation generates Fe
3+, OH
-And OH.The OH that reaction is produced can generate 2 with salicylism reaction, and the 3-resorcylic acid has maximum absorption at the 510nm place.Measuring method carries out according to merchant's careful people's the method that waits.
2.2 colorimetry (X/XO reaction) detects curculigoside to O
2 -Scavenging(action):
Utilize xanthine (X) and XOD (XO) reaction to produce ultra-oxygen anion free radical, this free radical can be blue with NBT reaction formation, measures optical density in the 560nm place.
2.3 the calculating of free radical scavenging activity
The inhibiting rate %=[(A of free radical
Blank-A
Sample)/A
Blank] * 100%.
IC
50Value obtains by linear regression.
3. experimental result: see Table 1.Illustrate that 2 pairs of hydroxyl radical free radicals of compound 1 and compound and ultra-oxygen anion free radical all have significant scavenging(action), its action effect (IC50) all is better than positive control drug tea-polyphenol (EGCG).
The scavenging(action) of 2 pairs of hydroxyl radical free radicals of table 1. compound 1 and compound and ultra-oxygen anion free radical
| Compound | ??IC 50(mmol/L) | |
| Hydroxyl radical free radical | Ultra-oxygen anion free radical | |
| ??1 | ??0.214 | ??0.388 |
| ??2 | ??0.177 | ??0.249 |
| ??EGCG | ??0.580 | ??0.531 |
Claims (12)
1, flavonoid glycoside compound is characterized in that, is respectively 7,4 '-two glucosides of the English homoeriodictyol by name of flavanone aglycon Homoeriodictyol, the English eriodictyol by name of eriodictyol, and its chemical structural formula is as follows:
1R=OCH
3Homoeriodictyol
The 2R=OH eriodictyol,
The said structure feature is called after Homoeriodictyol-7 respectively, 4 '-two-O-β-D-glucoside is homoeriodictyol 7,4 '-di-O-β-D-glucopyranoside, 1 and eriodictyol-7,4 '-two-O-β-D-glucoside is eriodictyol 7,4 '-di-O-β-D-glucopyranoside, 2.
2, a kind of preparation method of flavonoid glycoside compound according to claim 1 is characterized in that
(1) the higher plant raw material extracts with the water of 4-15 times of quality or aqueous ethanol, methyl alcohol or the acetone solvent of 10-100wt%;
(2) extracting solution is concentrated into thick medicinal extract after reclaiming solvent;
(3) the thick medicinal extract that is obtained is used ethers, ester class, chloroform, propyl carbinol organic solvent extraction successively, merge the n-butanol extraction part, perhaps with behind the abundant agitation and dilution of thick medicinal extract water that is obtained, adopt nonpolar or low-pole macroporous adsorbent resin, adsorb, the aqueous ethanol wash-out of water, 20-50wt% is successively collected elutriant and is concentrated into dried then;
(4) with above-mentioned n-butanol extraction part or collect macroporous adsorbent resin 30-50wt% elutriant and be concentrated into dried product and get final product through column chromatography for separation.
3, preparation method as claimed in claim 2 is characterized in that, the higher plant of plant material is a spermatophyte.
4, preparation method as claimed in claim 3 is characterized in that, the higher plant of plant material is the Loranthaceae spermatophyte.
5, preparation method as claimed in claim 4 is characterized in that, the Loranthaceae plant is a mistletoe.
6, preparation method as claimed in claim 2 is characterized in that, during extraction the heating 30-95 ℃ backflow 1-3 hour, extract united extraction liquid 1-3 time.
7, preparation method as claimed in claim 2 is characterized in that, extracting solution is an aqueous ethanol.
8, preparation method as claimed in claim 2 is characterized in that, the proportion that extracting solution is condensed into thick medicinal extract is 1.02-1.10.
9, preparation method as claimed in claim 2 is characterized in that, thick medicinal extract is used sherwood oil, ethyl acetate, propyl carbinol solvent extraction successively.
10, preparation method as claimed in claim 2 is characterized in that, behind the employing absorption with macroporous adsorbent resin, the aqueous ethanol wash-out of water, 20wt%, 30wt%, 40wt%, 50wt% is collected the 30-50wt% elutriant and is product successively.
11, preparation method as claimed in claim 2 is characterized in that, column chromatography for separation adopts silica gel column chromatography, SephadexLH20 column chromatography or ODS column chromatography.
12, the purposes of flavonoid glycoside compound as claimed in claim 1 or 2 is the application as pharmaceutical composition.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2005100266256A CN1332969C (en) | 2005-06-09 | 2005-06-09 | Flavonoid glycoside compound and its preparing process |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2005100266256A CN1332969C (en) | 2005-06-09 | 2005-06-09 | Flavonoid glycoside compound and its preparing process |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1699393A true CN1699393A (en) | 2005-11-23 |
| CN1332969C CN1332969C (en) | 2007-08-22 |
Family
ID=35475657
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNB2005100266256A Expired - Fee Related CN1332969C (en) | 2005-06-09 | 2005-06-09 | Flavonoid glycoside compound and its preparing process |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1332969C (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102731595A (en) * | 2011-04-13 | 2012-10-17 | 东北林业大学 | Method for separation and purification of homoarbutin and hyperoside from P. calliantha H Andr |
| CN102911148A (en) * | 2011-08-02 | 2013-02-06 | 苏州宝泽堂医药科技有限公司 | Method for preparing homoeriodictyol from mistletoe |
| CN103304611A (en) * | 2013-06-18 | 2013-09-18 | 聊城大学 | Method for separating and purifying three flavonoid glycosides from trichosanthes bark |
| CN108395461A (en) * | 2017-02-07 | 2018-08-14 | 浙江康恩贝制药股份有限公司 | 7,4 '-O- β-D-Glucose morin glycosides and its preparation and its application in preparing anti-inflammatory drug |
| CN112062798A (en) * | 2020-10-16 | 2020-12-11 | 中国科学院昆明植物研究所 | Flavonoid glycoside compound, active extract of purple branch rose, preparation method and application |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1104438C (en) * | 1997-06-02 | 2003-04-02 | 山东医科大学附属医院 | Mistletoe extract and its use |
-
2005
- 2005-06-09 CN CNB2005100266256A patent/CN1332969C/en not_active Expired - Fee Related
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102731595A (en) * | 2011-04-13 | 2012-10-17 | 东北林业大学 | Method for separation and purification of homoarbutin and hyperoside from P. calliantha H Andr |
| CN102911148A (en) * | 2011-08-02 | 2013-02-06 | 苏州宝泽堂医药科技有限公司 | Method for preparing homoeriodictyol from mistletoe |
| CN103304611A (en) * | 2013-06-18 | 2013-09-18 | 聊城大学 | Method for separating and purifying three flavonoid glycosides from trichosanthes bark |
| CN103304611B (en) * | 2013-06-18 | 2016-06-15 | 山东中医药大学 | A kind of method of separation and purification 3 kinds of flavonoid glycosides from Snakegourd Peel |
| CN108395461A (en) * | 2017-02-07 | 2018-08-14 | 浙江康恩贝制药股份有限公司 | 7,4 '-O- β-D-Glucose morin glycosides and its preparation and its application in preparing anti-inflammatory drug |
| CN108395461B (en) * | 2017-02-07 | 2022-01-07 | 浙江康恩贝制药股份有限公司 | 7, 4' -O-beta-D-glucose morin glycoside, preparation thereof and application thereof in preparing anti-inflammatory drugs |
| CN112062798A (en) * | 2020-10-16 | 2020-12-11 | 中国科学院昆明植物研究所 | Flavonoid glycoside compound, active extract of purple branch rose, preparation method and application |
| CN112062798B (en) * | 2020-10-16 | 2022-07-15 | 中国科学院昆明植物研究所 | Flavonoid glycoside compound, active extract of purple branch rose and preparation method and application thereof |
Also Published As
| Publication number | Publication date |
|---|---|
| CN1332969C (en) | 2007-08-22 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN109776635B (en) | Method for separating eight components in traditional Chinese medicine composition | |
| CN100344643C (en) | Method for preparing gentiamarin | |
| CN102976909B (en) | Method for extracting and purifying 6-gingerol from ginger | |
| CN1974527A (en) | Process of preparing high purity chlorogenic acid and flavonid with eucommia leaf | |
| CN101723998B (en) | Preparation method of flavonoid glycosides in scutellaria baicalensis | |
| CN105566414B (en) | The method that four kinds of flavone glycosides are isolated and purified from waxberry flesh | |
| CN1699393A (en) | Flavonoid glycoside compound and its preparing process | |
| Wu et al. | Determination of caffeoylquinic acid derivatives in Azolla imbricata by chitosan-based matrix solid-phase dispersion coupled with HPLC–PDA | |
| CN110526952B (en) | Preparation method for extracting flavonoid glycoside from pteris crassipes | |
| CN1269831C (en) | Method for preparing polygonin and resveratrol | |
| CN1477104A (en) | Extraction and purification method of licoflavone | |
| CN101041620A (en) | Preparation method of salvia miltiorrhiza tanshinoate A | |
| CN1850847A (en) | Method for preparing periplogenin | |
| CN1268631C (en) | Technique for preparing general flavone of Chinese globeflower with short petal some medicinal substances in high purity | |
| CN1279052C (en) | Process for extracting total flavone and total oside of astragalus from astragalus | |
| CN101024604B (en) | Novel dihydrochalcone compound separated and purified from drgon blood and preparation method thereof | |
| CN108912049B (en) | Diterpene alkaloid compound extracted from aconitum sinomontanum nakai and preparation method and application thereof | |
| CN105434539A (en) | Composition of lotus flavones | |
| CN1312142C (en) | Diaryl neptanone compound and its preparing method | |
| CN105384784B (en) | The screening of three kinds of antioxidation activity 2,3,5,4'-tetrahydroxyl diphenylethylene-2-O-BETA-D-glucoside class materials, method for separating and preparing in the Qinghai cultivation fleece-flower root | |
| CN111303094B (en) | Ribes burejense Phellinus benzofuran derivatives and preparation method and application thereof | |
| CN1990483A (en) | Preparing process for Isolation of a plurality of isoflavones components in astragalus root | |
| CN101085794B (en) | Method for preparing 10-deacetyl asperulosidic acid methyl ester | |
| CN111675741A (en) | Separation method for simultaneously obtaining four kinds of epimedium rare flavone by using preparative liquid phase method | |
| CN106668234B (en) | Rose extraction and purification process for total flavonoids |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20070822 Termination date: 20100609 |