CN106928289B - A kind of four glucosides of acylation flavones and its extracting method and application - Google Patents

A kind of four glucosides of acylation flavones and its extracting method and application Download PDF

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CN106928289B
CN106928289B CN201710098381.5A CN201710098381A CN106928289B CN 106928289 B CN106928289 B CN 106928289B CN 201710098381 A CN201710098381 A CN 201710098381A CN 106928289 B CN106928289 B CN 106928289B
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tea
elution
glucosides
flavones
meoh
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CN106928289A (en
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鲍官虎
柏无瑕
王威
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Anhui Agricultural University AHAU
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    • C07ORGANIC CHEMISTRY
    • C07HSUGARS; DERIVATIVES THEREOF; NUCLEOSIDES; NUCLEOTIDES; NUCLEIC ACIDS
    • C07H17/00Compounds containing heterocyclic radicals directly attached to hetero atoms of saccharide radicals
    • C07H17/04Heterocyclic radicals containing only oxygen as ring hetero atoms
    • C07H17/06Benzopyran radicals
    • C07H17/065Benzo[b]pyrans
    • C07H17/07Benzo[b]pyran-4-ones
    • CCHEMISTRY; METALLURGY
    • C07ORGANIC CHEMISTRY
    • C07HSUGARS; DERIVATIVES THEREOF; NUCLEOSIDES; NUCLEOTIDES; NUCLEIC ACIDS
    • C07H1/00Processes for the preparation of sugar derivatives
    • C07H1/06Separation; Purification
    • C07H1/08Separation; Purification from natural products

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Abstract

The present invention provides it is a kind of separated from tealeaves the entitled tea hill that is prepared how four glucosides of acylation flavones of phenose glycosides C;It is first that Lu`an Guapian.Tea tea or yellow big tea powder is broken when preparation;Then leaching liquor is obtained with the smashed Lu`an Guapian.Tea tea of 70-80% acetone flooding or Huang great Cha, it is extracted again with methylene chloride, ethylacetate step, corresponding extraction position paste extract methylene chloride position, ethyl acetate extract and remaining water position is made by being concentrated under reduced pressure in extracting solution;Water position, which is isolated and purified, using a variety of column chromatography technologies again obtains Kaempferol glucosides C.How four glucosides of acylation flavones of phenose glycosides C can be applied to lipid-lowering diet drug in the entitled tea hill that the present invention is prepared.

Description

A kind of four glucosides of acylation flavones and its extracting method and application
Technical field
The invention belongs to technical field of chemistry, and in particular to a kind of entitled tea hill how the acylation flavones tetrose of phenose glycosides C Glycosides and its extracting method and application.
Background technique
Tea originating from China, is found and is utilized by our ancestors with its medicinal function earliest, existing away from the present More than 3000 years history, successively experienced from it is medicinal to eat to now popularize the whole world drink differentiation.As the fashionable world Beverage, tealeaves be not only rely on its unique flavor by consumer's pro-gaze, more crucial factor is by tealeaves institute The functional component and health-care efficacy contained.As people are to the pay attention to day by day of health, the healthy functions research of tealeaves is also resulted in The broad interest of researcher.Research shows that tealeaves has anticancer, anti-oxidant, lower blood-fat and reduce weight, hypoglycemic, antiallergy, sterilization, disease-resistant The effects of poison, protection liver.
Lu`an Guapian.Tea belongs to green tea, originates in the peace of Anhui six, for one of Chinese well-known tea, there is long history inside information With deep cultural connotation.Most tealeaves is all to be connected to pick with bud-leaf to be process, and Lu`an Guapian.Tea is then with list Piece leaf is process, while also having both the serious skill of unique drawing in drying process, so that it is different from other green tea, together When it is also popular among consumers.
Huang great Cha belongs to yellow tea class as its name suggests, and the Huang great Cha in Anhui mainly originates in one band of Huoshan, the spy of Huang great Cha Selecting is that leaf is big, stalk is long, yellow yellow stuff, has the dense Gao Huoxiang split, is commonly called as a pot cake perfume (or spice).Processing raw material for Huang great Cha be with thick old leaf Main, bored Huang is its distinctive manufacturing procedure.There is correlative study to show that Huang great Cha has good effect of lowering blood sugar and hypoglycemic in the recent period Effect is better than green tea and black tea.
The report of chemical fundamentals about Lu`an Guapian.Tea and Huang great Cha bioactivity is fewer, if can be successfully from six peaces Biologically active flavonoid glycoside biotic component is researched and developed in green tea produced in Anhui Province and Huang great Cha, it will to Western Anhui Lu`an Guapian.Tea And the development and publicity of Huang great Cha brand provide certain help, while also can make important tribute to agricultural and medicine and other fields It offers.
Summary of the invention
An object of the present invention is to provide a kind of entitled tea hill for separating and being prepared from Lu`an Guapian.Tea and Huang great Cha How four glucosides of acylation flavones of phenose glycosides C, this entitled tea hill how four glucosides of acylation flavones of phenose glycosides C have it is as follows Structure:
The second object of the present invention is to provide a kind of above-mentioned entitled tea hill how the system of acylation four glucosides of flavones of phenose glycosides C Preparation Method, including following two path:
Path A:
1) raw material crushes:
Dry Lu`an Guapian.Tea made tea or Huang great Cha are taken, is pulverized into powder;
2) it extracts
Leaching liquor is obtained with the smashed Lu`an Guapian.Tea made tea of 70-80% acetone flooding or Huang great Cha, through excessive Grade extracts and is concentrated under reduced pressure to give last remaining water position paste;
3) it isolates and purifies
By water position paste isolate and purify to obtain tea hill how phenose glycosides C.
Preferably, in the step 2) extraction, it is first big with the smashed Lu`an Guapian.Tea of 70-80% acetone flooding or Huang Tea obtains leaching liquor, then is extracted with methylene chloride, ethylacetate step, and corresponding extraction position is made by being concentrated under reduced pressure in extracting solution Paste extract: methylene chloride position, ethyl acetate extract and remaining water position paste.
Preferably, isolating and purifying described in the step 3) is that will successively pass through after the dissolution of water position paste MCI column chromatography, silica gel column chromatography, Sephadex LH-20 gel filtration chromatography, Toyopearl column chromatographic isolation and purification.
Preferably, the specific steps isolated and purified described in the step 3) are as follows: by water position paste with water-soluble MCI column is crossed after solution uses MeOH-H2O volume ratio 0: 100 to 100: 0 as gradient elution, collects wherein MeOH-H2O volume ratio 70: 30 to 80: 20 elution fraction;Then by resulting elution component through silica gel column chromatography, with CH2Cl2- MeOH volume ratio 20: 1,15: 1,10: 1,5: 1 to 0: 1 is used as gradient elution, collects wherein CH2Cl2The elution fraction of-MeOH volume ratio 5: 1;Gained is washed De- component is again through Sephadex LH-20 gel filtration chromatography, and using MeOH as eluent, collection obtains elution fraction;Elution Component through Toyopearl column chromatography, elution, obtains Kaempferol glucosides C again.
Path B:
1) raw material crushes:
Dry Lu`an Guapian.Tea made tea or Huang great Cha are taken, is pulverized into powder;
2) it extracts
Leaching liquor is obtained with the smashed Lu`an Guapian.Tea made tea of 70-80% acetone flooding or Huang great Cha, through excessive Grade extracts and is concentrated under reduced pressure to give last remaining n-butanol portion paste;
3) it isolates and purifies
By n-butanol portion paste isolate and purify to obtain tea hill how phenose glycosides C.
Preferably, the path step B 2) extraction in, first use the smashed Lu`an Guapian.Tea of 70-80% acetone flooding Or Huang great Cha obtains leaching liquor, then is extracted with methylene chloride, ethylacetate step, corresponding extraction is made by being concentrated under reduced pressure in extracting solution Take position paste extract: methylene chloride position, ethyl acetate extract and remaining water position, water position extracting n-butyl alcohol, Finally obtain n-butanol portion paste.
Preferably, the path step B 3) described in isolate and purify be by n-butanol portion paste dissolution after according to It is secondary to isolate and purify to obtain Kaempferol glucosides C through MCI column chromatography, Sephadex LH-20 gel filtration chromatography.
Preferably, the path step B 3) described in the specific steps isolated and purified are as follows:
MCI column chromatography is crossed after n-butanol portion paste is dissolved with water uses MeOH-H2O volume ratio 20: 80 to 100: 0 As gradient elution, the elution fraction of wherein MeOH-H2O volume ratio 70: 30 to 80: 20 is collected;Then by resulting elution group Part is through Sephadex LH-20 gel filtration chromatography, and using methanol as eluent, collection obtains elution fraction;Elution fraction is again It chromatographed, eluted, obtain Kaempferol glucosides C.
Preferably, in the two kinds of paths above A, B: in the step 2) extraction, organic solvent, which extracts, uses immersion way It extracts, i.e., is all equally separately immersed in smashed Lu`an Guapian.Tea or Huang great Cha in organic solvent 70-80 hours;Or by powder Lu`an Guapian.Tea or Huang great Cha after broken are all equally extracted with organic solvent supersonic oscillations respectively.
The third object of the present invention be by entitled tea hill as described above how the four glucosides application of acylation flavones of phenose glycosides C Application in terms of lipid-lowering diet drug.
Specifically by tea hill as described above how four glucosides of acylation flavones of phenose glycosides C and pharmaceutically general A kind of lipid-lowering diet drug is made in auxiliary material, and the pharmaceutical dosage form includes oral type, external application type and injection-type.
Beneficial effects of the present invention are as follows:
1) confirm how acylation four glucosides of flavones of phenose glycosides C is in induction in entitled tea hill of the present invention by test There is certain inhibition lipid accumulation effect in 3T3-L1 cell, in terms of can be applied to preparation lipid-lowering diet drug.Therefore the present invention The flavonoid glycoside compound with medicinal actives provided has great importance to agricultural and field of medicaments;
2) more extensive prospect is provided using Lu`an Guapian.Tea and Huang great Cha for effective exploitation simultaneously.
3) preparation method of the present invention is simple, and cost is relatively low.
Detailed description of the invention
Fig. 1 be tea hill how the chemical structural formula of phenose glycosides C.
Fig. 2 is that how phenose glycosides C and the other three flavone glycoside test the inhibition of lipid accumulation in 3T3-L1 cell in tea hill Schematic diagram, wherein 1 for tea hill how phenose glycosides C, 2 for tea hill how phenose glycosides A, 3 be tea quercetin glycoside C, and 4 be tea quercetin glycoside A。
Specific embodiment
Embodiment of the present invention is described in detail below in conjunction with embodiment, but those skilled in the art will Understand, the following example is merely to illustrate the present invention, and should not be taken as limiting the scope of the invention.
One, tea hill how the preparation of phenose glycosides C
Embodiment 1:
From the preparation in Lu`an Guapian.Tea
(1) 9.0 kilograms of dry Lu`an Guapian.Tea made teas are taken, and are pulverized into powder;
(2) 9.0 kilograms of dry Lu`an Guapian.Teas, 29 liter of 80% acetone water room temperature is extracted 72 hours first, is then existed Ultrasound extraction 2 hours under 70Hz;Obtain 80% acetone water position extracting solution;It is extracted three times by above-mentioned steps, combined extract simultaneously will Extracting solution is concentrated into paste, obtains 5 liters of extracting solution;
Then 5 liters of methylene chloride of extracting solution are extracted three times, obtains water layer and dichloromethane layer, merge dichloromethane layer simultaneously Concentration obtains methylene chloride and extracts 400 grams of medicinal extract;
Water layer adds 4 liters of ethyl acetate extractions three times again, obtains water layer and ethyl acetate layer, respectively combined ethyl acetate layer and water 760 grams of ethyl acetate extract medicinal extract are obtained after layer concentration, 630 grams of the position get Shui medicinal extract.
(3) 400 position Ke Shui medicinal extract 500mL hot water dissolvings are taken, then are chromatographed by MCI column, MeOH-H is used2O volume Than 0: 100 to 100: 0 gradient elution, wherein MeOH-H is collected2The elution fraction of O volume ratio 70: 30 to 80: 20;Then by institute The elution component obtained is through silica gel column chromatography, with CH2Cl2- MeOH volume ratio 20: 1,15: 1,10: 1,5: 1 to 0: 1 is washed as gradient It is de-, collect wherein CH2Cl2The elution fraction of-MeOH volume ratio 5: 1;Gained elutes component again through Sephadex LH-20 gel column Chromatography, using MeOH as eluent, collection obtains seven elution fractions;Component the six channels Toyopearl column chromatography, with methanol As eluent, collection obtains four elution fractions;Component two be tea hill how phenose glycosides C (kaempferol 3-O- [E- p-coumaroyl-(1→2)][α-L-arabinopyranosyl-(1→3)][β-D-glucopyranosyl-(1→3)-α- L-rhamnopyranosyl (1 → 6)]-β-D-glucopyranoside, 12.7 milligrams).The separation process is also assigned to simultaneously The other three flavone glycoside, respectively tea hill how phenose glycosides A, tea quercetin glycoside A, tea quercetin glycoside C.
Preparation in 2: Cong Huang great tea of embodiment
(1) 10 kilograms of dry Huang great Cha are taken, and are pulverized into powder;
(2) it first uses 30 liter of 80% acetone water room temperature to extract 72 hours 10 kilograms of dry Huang great Cha first, then exists Ultrasound extraction 2 hours under 70Hz;Obtain 80% acetone water position extracting solution;It is extracted three times by above-mentioned steps, combined extract simultaneously will Extracting solution is concentrated into paste, obtains 5 liters of extracting solution;
Then 5 liters of methylene chloride of extracting solution liquid are extracted three times, obtains water layer and dichloromethane layer, merge dichloromethane layer And be concentrated, it obtains methylene chloride and extracts 700 grams of medicinal extract.
Water layer adds 4 liters of ethyl acetate extractions three times again, obtains water layer and ethyl acetate layer, combined ethyl acetate layer obtains acetic acid second 625 grams of esteratic site medicinal extract.
Water layer adds 3L extracting n-butyl alcohol three times, obtains water layer and n-butanol layer, after merging n-butanol layer and water layer concentration respectively 128 grams of n-butanol portion medicinal extract are obtained, 150 grams of the position get Shui medicinal extract.
93.4 grams of n-butanol portion medicinal extract 150mL hot water dissolvings are taken, is chromatographed by MCI column, uses MeOH-H2O volume It is used as gradient elution than 20: 80 to 100: 0, collects wherein MeOH-H2The elution fraction of O volume ratio 70: 30 to 80: 20;Then By resulting elution component through Sephadex LH-20 gel filtration chromatography, using methanol as eluent, collection obtains eight Elution fraction;Component four is through Sephadex LH-20 gel filtration chromatography, and using methanol as eluent, collection obtains three and washes De- component;Component one is Kaempferol glucosides C (kaempferol 3-O- [E-p-coumaroyl- (1 → 2)] [α-L- arabinopyranosyl-(1→3)][β-D-glucopyranosyl-(1→3)-α-L-rhamnopyranosyl(1→ 6)]-β-D-glucopyranoside, 6.1 milligrams).
Embodiment 3
Raw material is changed to 9.0 kilograms of dry Huang great Cha, using the method for embodiment 1, tea hill of the present invention is prepared how 4.2 milligrams of phenose glycosides C.
Embodiment 4
Raw material is changed to 10 kilograms of dry Lu`an Guapian.Tea made teas, the present invention is prepared using the method for embodiment 2 Tea hill how 12.5 milligrams of phenose glycosides C.
As can be seen from the above embodiments, from after extracting n-butyl alcohol, later separation purifies to obtain the step of the compound It is rapid obvious simple.
Comparative example 1
A kind of jasmine tea of purchase in the market, is not extracted of the present invention using the method for embodiment 1 and embodiment 2 Tea hill how phenose glycosides C.
Tea hill of the present invention how phenose glycosides C characteristic it is as follows:
1) methanol and DMSO, are dissolved in, yellow solid,
2)、IR(KBr)vmax(cm-1): 3394,1700,1654,1604,1511,1078;
3), HR-ESI-MS:m/z1033.28429 ([M-H]-, C24H19O9 -Calculated value be 1033.28251);Core Resonance spectroscopic data is shown in Table 1.
Table 1: tea hill how phenose glycosides C spectroscopic data of the nuclear magnetic resonance (1H NMR in 600MHz,13C NMR is in 150MHz condition Lower test, δ unit are ppm, and coupling constant J unit is Hz, and solvent is deuterated DMSO).
The spectroscopic data of the nuclear magnetic resonance of 1. Kaempferol glucosides C of table
All spectral datas pass through1H NMR,13C NMR, ESI-HR-MS and1H-1The two dimensions such as H COSY, HMQC, HMBC Nuclear magnetic resoance spectrum ownership, it was demonstrated that the structure of gained compound.
Two, how the inhibition 3T3-L1 adipocyte lipid accumulation of phenose glycosides C and the other three flavone glycoside are tested in tea hill
Cell culture: taking 3T3-L1 PECTORAL LIMB SKELETON, with contain 10% fetal calf serum and 1% dual anti-DMEM culture medium, with Certain condition (37 DEG C of temperature, gas concentration lwevel 5%, humidity 95%) is incubated in carbon dioxide constant incubator.
Cell viability detection: cell viability is measured using thiazole blue laws.Take 3T3-L1 PECTORAL LIMB SKELETON according to 3 × 104A/ ML is inoculated in 96 orifice plates, and culture is separately added into the compound (25,50,100 and 200 μM) of different quality concentration afterwards for 24 hours, continuous to train The thiazolyl blue culture solution (5mg/ml) of 20 μ l is added after feeding 72h, blots culture solution after cultivating 4h, 150 μ l diformazans are added in every hole Base sulfoxide, shaking table use microplate reader to measure OD value at 490nm wavelength after vibrating 10min.
The induction differentiation of cell and oil red O stain: 3T3-L1 PECTORAL LIMB SKELETON is inoculated in 24 orifice plates, is cultivated using DMEM Base (containing 10% fetal calf serum) culture, after cell merges completely, addition insulin differentiating inducer (10 μ g/mL insulin, 0.5mol/L3- isobutyl group 1- methyl yellow Piao purine and 1 μm of ol/L dexamethasone) induction;DMEM culture medium culture 8 is replaced with after 3 days It.Self-induction starts (0 day), and different quality concentration (25,50,100 μM) compound is added in experimental group, and resveratrol is as positive Control group (20 μ g/mE).Cell is rinsed with phosphate buffer after 8 days, after being fixed with 10% formalin again with 60% it is different Propyl alcohol elution is observed fatty deposition in endochylema and is taken pictures using 0.5% oil red O stain.Every hole is added after oil red dyeing The cell of 400ul isopropanol processing dyeing goes out to detect OD value in microplate reader 510nm.
The experimental results showed that how phenose glycosides C and other three flavone glycosides hardly produce 3T3-L1 fat cell in tea hill Raw cytotoxicity, while the accumulation of lipid in 3T3-L1 fat cell can be effectively reduced.It is acted on when Kaempferol glucosides C is 50 μM When 3T3-L1 fat cell, the relative amount of the lipid in 3T3-L1 fat cell is 55.53%;Kaempferol glucosides C is 100 μM When, the relative amount of the lipid in 3T3-L1 fat cell is reduced to 50% or less.Illustrate tea hill how phenose glycosides C can be effective Inhibit the accumulation of lipid in 3T3-L1 fat cell, while this inhibitory effect is not that how phenose glycosides C is thin to 3T3-L1 by tea hill Caused by the cytotoxicity of born of the same parents.
Cytotoxicity of the 2. 4 flavone glycoside monomeric compounds of table to 3T3-L1 cell
1 for tea hill how phenose glycosides C, 2 for tea hill how phenose glycosides A, 3 be tea quercetin glycoside C, and 4 be tea quercetin glycoside A.
Therefore the entitled tea hill of the present invention is in terms of how four glucosides of acylations flavones of phenose glycosides C can apply lipid-lowering diet drug Preparation.
Specifically by tea hill as above of the invention, how four glucosides of acylation flavones of phenose glycosides C is by medically acceptable Dosage and pharmaceutically general auxiliary material a kind of lipid-lowering diet drug is made.The pharmaceutical dosage form include oral type, external application type and Injection-type etc..
The above content describes basic principles and main features of the invention, and the present invention is not limited to the above embodiments, Without departing from the spirit and scope of the present invention, various changes and improvements may be made to the invention, these changes and improvements are all It falls into scope of the claimed invention.

Claims (6)

1. a kind of four glucosides of acylation flavones, it is characterised in that be named as tea hill how phenose glycosides C, have structure as follows:
2. being acylated the preparation method of four glucosides of flavones according to claim 1, it is characterised in that in turn include the following steps:
1) raw material crushes:
Dry Lu`an Guapian.Tea made tea or Huang great Cha are taken, is pulverized into powder;
2) it extracts:
Leaching liquor is obtained with the smashed Lu`an Guapian.Tea made tea of 70-80% acetone flooding or Huang great Cha, then uses dichloromethane Corresponding extraction position paste extract: methylene chloride portion is made by being concentrated under reduced pressure in alkane, ethylacetate step extraction, extracting solution Position, ethyl acetate extract and remaining water position paste;
3) it isolates and purifies:
MCI column is crossed after water position paste is dissolved with water uses MeOH-H2O volume ratio 0:100 to 100:0 is used as gradient elution, Collect wherein MeOH-H2The elution fraction of O volume ratio 70:30 to 80:20;Then by resulting elution component through silica gel column layer Analysis, with CH2Cl2- MeOH volume ratio 20:1,15:1,10:1,5:1 to 0:1 are used as gradient elution, collect wherein CH2Cl2-MeOH The elution fraction of volume ratio 5:1;Gained elutes component again through Sephadex LH-20 gel filtration chromatography, using MeOH as eluant, eluent Elution, collection obtain elution fraction;Elution fraction again through Toyopearl column chromatography, elution, obtain tea hill how phenose glycosides C.
3. being acylated the preparation method of four glucosides of flavones according to claim 1, it is characterised in that in turn include the following steps:
1) raw material crushes:
Dry Lu`an Guapian.Tea made tea or Huang great Cha are taken, is pulverized into powder;
2) it extracts:
Leaching liquor first is obtained with the smashed Lu`an Guapian.Tea made tea of 70-80% acetone flooding or Huang great Cha, then uses dichloromethane Corresponding extraction position paste extract: methylene chloride portion is made by being concentrated under reduced pressure in alkane, ethylacetate step extraction, extracting solution Position, ethyl acetate extract and remaining water position, water position extracting n-butyl alcohol finally obtain n-butanol portion paste;
3) it isolates and purifies:
MCI column chromatography will be crossed after the dissolution of n-butanol portion paste uses MeOH-H2O volume ratio 20:80 to 100:0 is used as gradient Wherein MeOH-H is collected in elution2The elution fraction of O volume ratio 70:30 to 80:20;Then resulting elution component is passed through Sephadex LH-20 gel filtration chromatography, using methanol as eluent, collection obtains elution fraction;Elution fraction passes through again Sephadex LH-20 gel filtration chromatography, elution, obtain tea hill how phenose glycosides C.
4. a kind of be acylated application of four glucosides of flavones in terms of preparing lipid-lowering diet drug as described in claim 1.
5. a kind of lipid-lowering diet drug, which is characterized in that the drug by being acylated four glucosides of flavones as described in claim 1 It is made with auxiliary material.
6. lipid-lowering diet drug according to claim 5, which is characterized in that the pharmaceutical dosage form is oral type, external application type And injection-type.
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CN104592330A (en) * 2015-02-03 2015-05-06 天津科技大学 Kaempferol derivative separated from Sophora japonica as well as preparation method and application of kaempferol derivative
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