CN107056857A - A kind of new flavone compound and preparation method and application - Google Patents

A kind of new flavone compound and preparation method and application Download PDF

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CN107056857A
CN107056857A CN201710208961.5A CN201710208961A CN107056857A CN 107056857 A CN107056857 A CN 107056857A CN 201710208961 A CN201710208961 A CN 201710208961A CN 107056857 A CN107056857 A CN 107056857A
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CN107056857B (en
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王炜
沈冰冰
陈胜璜
江星明
翦雨青
周琪
黄建华
李斌
彭彩云
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Hunan University of Chinese Medicine
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Abstract

The present invention relates to a kind of new flavone compound, the one or more in structure I~V.The compound can be extracted from Rhizoma Polygoni sinensis using easy, easy-operating method and obtained.The compound that the present invention is provided can effectively anticoagulation, resisting vascular smooth muscle cell proliferation or protection cell, available for preparing medicine and health products;Wherein, compound I and II are natural red pigments, can be added in food, medicine, health products and cosmetics, with potential application value.

Description

A kind of new flavone compound and preparation method and application
Technical field
The present invention relates to field of natural product chemistry, and in particular to a kind of new flavone compound and preparation method thereof with Using.
Background technology
Rhizoma Polygoni sinensis, pin crescent fern [Abacopteris penangiana (Hook.) are draped over one's shoulders from Thelypteridaceae Meniscium Ching.] the rhizome of plant, also known as chicken blood lotus, japanese coniogramme rhizome or herb etc.;It is the conventional Chinese medicine among the people of North Western Hunan Tujia;Adjusted with promoting blood circulation Through, blood stasis removing analgesic, the effects such as dehumidifying;Cure mainly irregular menstruation, uterine bleeding, traumatic injury, arthralgia pain due to rheumatism, the illness such as oedema.
At present, not yet have to extract from Rhizoma Polygoni sinensis and obtain protecting with anticoagulation, resisting vascular smooth muscle cell proliferation or cell The report of the noval chemical compound of protective function.
The content of the invention
It is an object of the invention to overcome the defect of prior art, a kind of new flavonoid is extracted from Rhizoma Polygoni sinensis Thing, the compound can effectively anticoagulation, resisting vascular smooth muscle cell proliferation or protection cell, and compound I therein and II can be used as natural red pigments, with potential application value.
Specifically, one or more of the compound of the present invention in structure I~V:
Invention further provides the preparation method of described compound, comprise the following steps:
(1) Rhizoma Polygoni sinensis raw material is taken, is extracted with ethanol, gained extract solution is extracted with ethyl acetate, takes ethyl acetate layer, After concentration, medicinal extract is obtained;
(2) medicinal extract is splined on silicagel column, is that mobile phase is eluted with acetate-methanol, obtains extract;
(3) extract is separated, purified, produced.
Specifically, the compound I, which can be prepared as follows, forms:
(1) Rhizoma Polygoni sinensis raw material is taken, is extracted with ethanol, gained extract solution is extracted with ethyl acetate, takes ethyl acetate layer, After concentration, medicinal extract is obtained;
(2) medicinal extract is splined on silicagel column, is 10~1 with volume ratio:1 acetate-methanol is eluted, and is obtained Extract;
(3) it is 5~3 by the extract volume ratio:1 methylene chloride-methanol elution, by products therefrom volume ratio For 1:5~1:1 petroleum ether-methylene chloride-methanol elution, then products therefrom is splined on Sephadex LH-20 post volumes Than 1:1 chloroform-methanol elution, produces compound I;
Or:
(1) Rhizoma Polygoni sinensis raw material is taken, is extracted with ethanol, gained extract solution is extracted with ethyl acetate, takes ethyl acetate layer, After concentration, medicinal extract is obtained;
(2) medicinal extract is splined on silicagel column, is 10~1 with volume ratio:1 acetate-methanol is eluted, and is obtained Extract;
(3) it is 8~2 by the extract volume ratio:1 methylene chloride-methanol elution, by products therefrom volume ratio For 5~1:1 chloroform-methanol elution, by products therefrom volume ratio 8~5:1 methylene chloride-methanol elution, then by gained Product is prepared HPLC by half and eluted using 55% acetonitrile-water as mobile phase, produces compound I.
Specifically, the compound II, which can be prepared as follows, forms:
(1) Rhizoma Polygoni sinensis raw material is taken, is extracted with ethanol, gained extract solution is extracted with ethyl acetate, takes ethyl acetate layer, After concentration, medicinal extract is obtained;
(2) medicinal extract is splined on silicagel column, is 10~1 with volume ratio:1 acetate-methanol is eluted, and is obtained Extract;
(3) it is 5~3 by the extract volume ratio:1 methylene chloride-methanol elution, by products therefrom volume ratio For 3~0:1 methylene chloride-methanol elution, then products therefrom is splined on Sephadex LH-20 posts volume ratio 1:1 chlorine Imitation-carbinol is eluted, and produces compound II.
Specifically, the compound III, which can be prepared as follows, forms:
(1) Rhizoma Polygoni sinensis raw material is taken, is extracted with ethanol, gained extract solution is extracted with ethyl acetate, takes ethyl acetate layer, After concentration, medicinal extract is obtained;
(2) medicinal extract is splined on silicagel column, is 100~20 with volume ratio:1 acetate-methanol is eluted, Obtain extract;
(3) it is 8~3 by the extract volume ratio:1 chloroform-methanol elution, products therefrom volume ratio be 1~ 0:1 chloroform-methanol elution, products therefrom is splined on Sephadex LH-20 posts volume ratio 1:1 chloroform-methanol elution, Produce compound III.
Specifically, the compound IV, which can be prepared as follows, forms:
(1) Rhizoma Polygoni sinensis raw material is taken, is extracted with ethanol, gained extract solution is extracted with ethyl acetate, takes ethyl acetate layer, After concentration, medicinal extract is obtained;
(2) medicinal extract is splined on silicagel column, is 100~20 with volume ratio:1 acetate-methanol is eluted, Obtain extract;
(3) it is 10~5 by the extract volume ratio:1 chloroform-methanol elution, products therefrom volume ratio is 10 ~8:1 chloroform-methanol elution, products therefrom volume ratio is 20~10:1 methylene chloride-methanol elution, produces compound IV;
Or be:
(1) Rhizoma Polygoni sinensis raw material is taken, is extracted with ethanol, gained extract solution is extracted with ethyl acetate, takes ethyl acetate layer, After concentration, medicinal extract is obtained;
(2) medicinal extract is splined on silicagel column, is 100~20 with volume ratio:1 acetate-methanol is eluted, Obtain extract;
(3) it is 3~0 by the extract volume ratio:1 chloroform-methanol elution, products therefrom volume ratio be 3~ 0:1 chloroform-methanol elution, is 5~3 by products therefrom volume ratio:1 chloroform-methanol elution, then by products therefrom body Product is than being 5:1 chloroform-methanol elution, produces compound IV.
Specifically, the compound V, which can be prepared as follows, forms:
(1) Rhizoma Polygoni sinensis raw material is taken, is extracted with ethanol, gained extract solution is extracted with ethyl acetate, takes ethyl acetate layer, After concentration, medicinal extract is obtained;
(2) medicinal extract is splined on silicagel column, is 100~20 with volume ratio:1 acetate-methanol is eluted, Obtain extract;
(3) it is 20~10 by the extract volume ratio:1 chloroform-methanol elution, products therefrom volume ratio is 20 ~10:1 chloroform-methanol elution, products therefrom volume ratio is 20~10:1 chloroform-methanol elution, produces compound V;
Or be:
(1) Rhizoma Polygoni sinensis raw material is taken, is extracted with ethanol, gained extract solution is extracted with ethyl acetate, takes ethyl acetate layer, After concentration, medicinal extract is obtained;
(2) medicinal extract is splined on silicagel column, is 100~20 with volume ratio:1 acetate-methanol is eluted, Obtain extract;
(3) it is 3~0 by the extract volume ratio:1 chloroform-methanol elution, products therefrom volume ratio be 3~ 0:1 chloroform-methanol elution, is 3~1 by products therefrom volume ratio:1 chloroform-methanol elution, then by products therefrom body Product is than being 5~1:1 chloroform-methanol elution, produces compound V.
Unless particular determination, the stationary phase used during elution of the present invention is silicagel column.
The present invention further protects the compound preparing anticoagulation, resisting vascular smooth muscle cell proliferation and/or cell Protect the application in medicine and health products;The cytoprotection is preferably to suppress hydrogen peroxide to cause cellular damage.
The present invention protects the compound I and compound II in food, medicine, health products and cosmetics are prepared simultaneously Using.Specifically, compound I and/or compound II as natural red additive can be added to food, medicine, health care In product and cosmetics.
The new flavone compound of the present invention is extracted from Rhizoma Polygoni sinensis using easy method and obtained.The compound can With effective anticoagulation, resisting vascular smooth muscle cell proliferation or protection cell, and compound I and II therein is natural red color Element, with potential application value.
Brief description of the drawings
Fig. 1~Fig. 8 is respectively the UV spectrums of compound 1, IR is composed, MS is composed,13C-NMR spectrums,1H-NMR spectrums, hsqc spectrum, HMBC spectrums And1H-1H COSY are composed;
Fig. 9~Figure 16 is respectively the UV spectrums of compound 2, IR is composed, MS is composed,13C-NMR spectrums,1H-NMR spectrums, hsqc spectrum, HMBC Spectrum and1H-1H COSY are composed;
Figure 17~Figure 24 is respectively the UV spectrums of compound 3, IR is composed, MS is composed,13C-NMR spectrums,1H-NMR spectrums, hsqc spectrum, HMBC Spectrum and1H-1H COSY are composed;
Figure 25~Figure 32 is respectively the UV spectrums of compound 4, IR is composed, MS is composed,13C-NMR spectrums,1H-NMR spectrums, hsqc spectrum, HMBC Spectrum and1H-1H COSY are composed;
Figure 33~Figure 40 is respectively the UV spectrums of compound 4, IR is composed, MS is composed,13C-NMR spectrums,1H-NMR spectrums, hsqc spectrum, HMBC Spectrum and1H-1H COSY are composed;
Figure 41 is the vascular smooth muscle muscle cell multiplication influence schematic diagram that compound 3 is induced Angiotensin II;Its In, * P<0.05 is compared with normal group,#P<0.05,##P<0.01 is compared with model group;
Figure 42 is protective effect schematic diagram of the compound 3 to the PC12 cells of hydrogen peroxide-induced;*P<0.05,#P< 0.05,##P<0.01 is compared with model group.
Embodiment
Following examples are used to illustrate the present invention, but are not limited to the scope of the present invention.
Embodiment 1
A kind of flavone compound is present embodiments provided, concrete structure is as follows:
The sign collection of illustrative plates of the compound is as shown in Fig. 1~Fig. 8;Specifying information is as follows:
Red powder,(c 0.50,MeOH);
HRESI-MS is provided [M+H]+m/z 459.1661(Calcd for C24H27O9, 459.1655), it may be determined that should Compound molecule formula is C24H26O9, degree of unsaturation is 12;
UV spectrums, which are shown at 347nm, 524nm, absorption maximum;
IR spectrum displays:Hydroxyl (3413cm-1), carbonyl (1601cm-1) and phenyl ring (1641,1498cm-1);
13C-NMR spectrums show 24 carbon signals:I.e. one group flavonoid structure, a glucose, a methoxyl group and two first The signal of base;From1Understood in H-NMR spectrums, six fragrant hydrogen:δH8.64 (1H, dd, 7.6Hz), 7.89 (2H, dd, 8.9Hz), 7.10 (2H, dd, 8.9Hz), 6.81 (1H, dd, 7.6Hz);One sugared anomeric proton:δH5.42 (d, 7.6Hz), a first Epoxide:δH3.75 (3H, s), two methyl:δH2.78 (3H, s), 2.38 (3H s), is shown in Table 1;
1H-1In H COSY spectrums, H-3 is related to H-4, H-2'(6') to H-3'(5') it is related, it was confirmed that one-dimensional hydrogen spectrum is even Close the correlation of signal;
In HMBC spectrums, 4 '-OCH3H3.75, s) with C-4 ' (δC162.3) it is related, illustrate that methoxyl group is connected in C-4 ' positions On;H-2 ' or 6 ' (δH7.89, dd, 8.9Hz) and C-2 (δC158.2), C-3 ' or C-5 ' (δC114.8), C-4 ' (δC 162.3) it is related;H-3 ' or 5 ' (δH7.10, dd, 8.9Hz) and C-1 ' (δC124.1), C-4 ' (δC162.3) it is related;Illustrate B Ring is the phenyl ring for 4 ' position methoxy substitutions being connected on C-2 positions.H-1″(δH5.42, d, 7.6Hz) and C-5 (δC151.4) phase Close, illustrate that sugar is connected on C-5 positions;6-CH3(δH2.78, s) with C-5 (δC 151.4)、C-6(δC 128.3)、C-7(δC 183.2) it is related;8-CH3(δH2.38, s) with C-7 (δC 183.2)、C-8(δC 109.2)、C-9(δC153.9) it is, related, say Bright A rings 6,8 be methyl substitution, 7 are carbonyls.H-3(δH6.82, d, 7.6Hz) and C-2 (δC 158.2)、C-10(δC 118.4)、C-1′(δC124.1) it is related, H-4 (δH8.65, d, 7.6Hz) and C-2 (δC 158.2)、C-5(δC 151.4)、C- 9(δC153.9) it is related, illustrate on C rings 3 and 4 it is unsubstituted.
In summary, identify the compound for 6,8-dimethyl-5-hydroxy-2- (4'-methoxy-phenyl)- Benzopyran-5-O- β-D-glucopyranoside, i.e. 6,8- dimethyl -5- hydroxyls -2- (4 '-methoxyl group phenyl ring)-benzo Pyrans -5-O- β-D-Glucose.
Embodiment 2
A kind of flavone compound is present embodiments provided, concrete structure is as follows:
The sign collection of illustrative plates of the compound is as shown in Fig. 9~Figure 16;Specifying information is as follows:
Red powder,(c 1.38, MeOH), HRESIMS is provided [M+H]+m/z 501.1817(Calcd for C26H29O10, 501.1761), it may be determined that molecular formula is C26H28O10, degree of unsaturation is 13.UV spectrums, which are shown at 512nm, to be had most It is big to absorb.IR spectrum displays:Hydroxyl (3364cm-1), carbonyl (1729cm-1) and phenyl ring (1647,1601,1499cm-1)。
Comparative compound 1,13In C-NMR spectrums, many δC170.4 (carbonyls) and δC20.4 (methyl).In HMBC spectrums In, H-6 " (δH4.26, dd) with carbonyl (δC170.4) it is related, illustrate that carbonyl is connected in C-6 " on position;6″-CH3H1.89, s) With carbonyl (δC171.2) it is related, illustrate that methyl is connected on carbonyl position.
In summary, identify the compound for 6,8-dimethyl-5-hydroxy-2- (4'-ethoxy-phenyl)- Benzopyran-5-O- β-D-6-acety-glucopyranoside, i.e. 6,8- dimethyl -5- hydroxyl -2- (4 '-methoxybenzenes Ring)-chromene -5-O- β-D-6- acetyl group glucose.
Embodiment 3
A kind of flavone compound is present embodiments provided, concrete structure is as follows:
The sign collection of illustrative plates of the compound is as shown in figure Figure 17~Figure 24;Specifying information is as follows:
White powder,(c 1.75, MeOH), HRESIMS is provided [M+H]+m/z 479.1916(Calcd for C24H31O10, 479.1917), it may be determined that molecular formula is C24H30O10, degree of unsaturation is 10.UV spectrums are shown at 273nm There is absorption maximum.IR spectrum displays:Hydroxyl (3400cm-1) and phenyl ring (1604,1569,1460cm-1)。
13The signal of C-NMR spectrum 24 carbon signals of display, i.e., one group flavonoid structure, a glucose and a methoxyl group. From1Knowable to H-NMR spectrums, aromatic rings hydrogen signal:δH8.06 (d, 8.9Hz, H-2 ' and H-6 '), 6.96 (d, 8.9Hz, H-3 ' and H- 5 ') one group of AX system, is constituted.δH3.34 (dd, H- α), δH3.20 (m, H- α), δH3.06 (2H, dd, H- β), two groups of composition- CH2- fragment.One sugared end group hydrogen signal:δH4.66 (d, 7.6Hz, H-1 ").One methoxyl group signal:δH 3.85(s,4′- OCH3).Two methyl signals:δH 2.08(s,5-CH3) and δH 2.18(s,3-CH3).1H-1In H COSY spectrums, H- α and H- β There are correlation, H-2 ' (δH8.06) with H-3 ' (δH6.96) there is correlation, it was confirmed that one-dimensional hydrogen composes the correlation of coupled signal.
Sugar terminal hydrogen the H-1 " (δ in HMBC spectrumsH4.66) with C-2 (δC151.0) it is related, illustrate that sugar is connected in C-2;δH 2.18 (s, 3-CH3) related to C-3, C-2 etc., illustrate that methyl is connected on 3;δH2.08 (s, 5-CH3) with the phase such as C-5, C-6 Close, illustrate that methyl is connected on 5.H- α (dd, δH3.34;M, δH3.20) it is related to carbonyl carbon, β-C, C-1;H- β (dd, δH 3.06) related to carbonyl carbon, α-C, C-1, C-2, information above illustrates the position of the hydrogen on chalcone parent nucleus.
In summary parse, compound identification is α, β-dihydro-2,4,6-trihydroxy-4 '-methoxy-3,5- Dimethyl-dihydrochalcone-2-O- β-D-glucopyranoside, i.e., 2,4,6- -4 '-methoxyl group -3 of trihydroxy, 5- dimethyl dihydrochalcones.
Embodiment 4
A kind of flavone compound is present embodiments provided, concrete structure is as follows:
The sign collection of illustrative plates of the compound is as shown in Figure 25~Figure 32;Specifying information is as follows:
Yellow powder,(c 1.63, MeOH), HRESIMS provides [M-Na+H2O]+m/z 485.1043 (Calcd for C22H22O11Na, 485.1060), it may be determined that molecular formula is C22H24O12, degree of unsaturation is 11.UV spectrum displays There is absorption maximum at 336nm, 414nm.IR spectrum displays:Hydroxyl (3354cm-1) and phenyl ring (1600,1505,1453cm-1)。
13The signal of C-NMR spectrum 22 carbon signals of display, i.e., one group flavonoid structure, a glucose and a methoxyl group 。1The fragrant hydrogen signal δ of H-NMR spectrum displaysH8.38 (d, 2.8Hz, H-6), 7.21 (d, 8.7,2.8Hz, H-4), 7.18 (d, 8.7Hz, H=3), constitute one group of ABX system.Another aromatic rings hydrogen signal δH6.85 (d, 1.7Hz, H-3 '), 6.17 (d, 1.7Hz, H-5 '), constitute one group of AB system.Sugared end group hydrogen signal δH5.85 (d, 7.5Hz, H-1 ").One methoxyl group signal δH 3.74 (s, 4 '-OCH3).1H-1In H COSY spectrums, H-6 has related to H-4, and H-5' has related to H-3', it was confirmed that one-dimensional hydrogen Compose the correlation of coupled signal.
Sugar terminal hydrogen the H-1 " (δ in HMBC spectrumsH5.85) with C-2 ' (δC157.5) it is related, illustrate that sugar is connected in C-2 ' positions; H-3′(δH5.85) it is related to C-1 ', C-4 ', C-5 ' etc., H-5 ' (δH5.85) it is related to C-1 ', C-3 ', C-6 ' etc.;H-3(δH 7.18) it is related to C-1, H-4 (δH7.21) it is related to C-5, H-6 (δH8.38) it is related to β-C, C-3, C-4;H-β(δH 8.07) It is related to carbonyl, α-C, C-2, C-6.Information above illustrates the position of the hydrogen on chalcone parent nucleus.
In summary parse, compound identification is α, 2,5,2 ', 6 '-pentahydroxy-4 '-methoxy- Chalcone-2 '-O- β-D-glucopyranoside, i.e. α, 2,5,2 ', 6 '-penta hydroxy group -4 '-methoxyl group-chalcone -2 '-O- β-D-Glucose.
Embodiment 5
A kind of flavone compound is present embodiments provided, is, concrete structure is as follows:
The sign collection of illustrative plates of the compound is as shown in Figure 33~Figure 40;Specifying information is as follows:
Yellow powder,(c 33.63, MeOH), HRESIMS provides the (Calcd of [M+H] m/z 465.1399 for C22H25O11, 465.1397), it may be determined that molecular formula is C22H24O11, degree of unsaturation is 11.UV spectrums are shown at 281nm There is absorption maximum.IR spectrum displays:Hydroxyl (3333cm-1) and phenyl ring (1649,1607,1505cm-1)。
13C-NMR spectrums show the signal of 22 carbon signals, i.e. flavonoid structure, a glucose and a methoxyl group.1H- The fragrant hydrogen signal δ of H NMR spectroscopy displayH7.65 (d, 2.4Hz, H-6'), 7.12 (d, 8.7,2.4Hz, H-4'), 7.11 (d, 8.7Hz, H=3'), one group of ABX system is constituted.Another aromatic rings hydrogen signal δH7.06 (d, 2.4Hz, H-6), 6.39 (d, 2.4Hz, H- 8) one group of AB system, is constituted.Sugared end group hydrogen signal δH5.38 (d, J=7.4Hz, H-1 ").One methoxyl group signal δH 3.68 (s, 7-OCH3).In COSY spectrums, H-6 (δH7.06) with H-8 (δH6.39) there are correlation, H-6'(δH7.65) with H-4'(δH 7.12) there is correlation, it was confirmed that one-dimensional hydrogen composes the correlation of coupled signal.In addition, H-2 (δH6.21) with H-3 (δH3.22) related.
Sugar terminal hydrogen the H-1 " (δ in HMBC spectrumsH5.38) with C-5 (δC161.3) it is related, illustrate that sugar is connected in C-5;H-6 (δH7.06) it is related to C-5, C-7, C-8, C-10 etc., H-8 (δH6.39) it is related to C-6, C-9, C-10 etc.;H-6′(δH 7.65) related to C-2, C-2 ', C-4 ', C-5 ', H-3 ' is " related to C-1 ', C-2 ', C-5;H-2(δH6.21) with C-6 ' phases Close, H-3 (δH3.22) it is related to C-2, C-4;Information above illustrates the position of the hydrogen on flavanone parent nucleus.
In summary parse, compound identification is 5,2 ', 5 '-trihydroxy-7-methoxy-flavonones-5-O- β-D-glucopyranoside, i.e., 5,2 ', 5 '-trihydroxy -7- methoxyl groups-flavanone -5-O- β-D-Glucose.
Experimental example 1:External anticoagulation experiment
The present invention is studied the Anticoagulant Activities in vitro of compound 1~5.Result of study is shown:Compound 1~5 is equal PT the and TT times can be extended, the influence to APTT is not obvious;In the range of sample concentration 0.1g/ml~0.5g/ml, exist certain Measure dependence;And under sample concentration 0.5g/ml, anticoagulant effect is most notable.
Experimental example 2:The vascular smooth muscle muscle cell multiplication shadow that MTT test method(s)s detection compound is induced Angiotensin II Ring
Cell line:Vascular smooth muscle cells (VSMCs)
Experimental result:MTT experiment has been carried out to compound 3, has as a result shown that compound 3 is dense in 10 μm of ol/l and 30 μm of ol/l When spending, the activity with good suppression vascular smooth muscle muscle cell multiplication, as a result as shown in figure 41.
Experimental example 3:Protective effect of the MTT test method(s)s detection compound to the PC12 cells of hydrogen peroxide-induced
Cell line:PC12 cells
Experimental result:MTT experiment has been carried out to compound 3, has as a result shown that compound 3 is thin to the PC12 of hydrogen peroxide-induced Born of the same parents have preferable protective effect, as a result as shown in figure 42.
From result above, there is resisting vascular smooth muscle cell proliferation activity to compound 3 and hydrogen peroxide is caused to damage The PC12 cells of wound have protective effect.
The present invention is detected that above-claimed cpd is respectively provided with and the class of compound 3 to the activity of compound 1,2,4,5 simultaneously As activity.
Although above having made to retouch in detail to the present invention with general explanation, embodiment and experiment State, but on the basis of the present invention, it can be made some modifications or improvements, this is apparent to those skilled in the art 's.Therefore, these modifications or improvements without departing from theon the basis of the spirit of the present invention, are belonged to claimed Scope.

Claims (9)

1. a kind of new flavone compound, it is characterised in that the one or more in structure I~V, wherein, compound I, compound II are natural red pigments:
2. the preparation method of compound described in claim 1, it is characterised in that comprise the following steps:
(1) Rhizoma Polygoni sinensis raw material is taken, is extracted with ethanol, gained extract solution is extracted with ethyl acetate, ethyl acetate layer is taken, concentrated Afterwards, medicinal extract is obtained;
(2) medicinal extract is splined on silicagel column, is that mobile phase is washed with petroleum ether-ethyl acetate or acetate-methanol It is de-, obtain extract;
(3) extract is separated, purified, produced.
3. method according to claim 2, it is characterised in that methods described is specially:
(1) Rhizoma Polygoni sinensis raw material is taken, is extracted with ethanol, gained extract solution is extracted with ethyl acetate, ethyl acetate layer is taken, concentrated Afterwards, medicinal extract is obtained;
(2) medicinal extract is splined on silicagel column, is 10~1 with volume ratio:1 acetate-methanol is eluted, and must be extracted Thing;
(3) it is 5~3 by the extract volume ratio:1 methylene chloride-methanol elution, is 1 by products therefrom volume ratio: 5~1:1 petroleum ether-methylene chloride-methanol elution, then products therefrom is splined on Sephadex LH-20 posts volume ratio 1: 1 chloroform-methanol elution, produces compound I;
Or be:
(1) Rhizoma Polygoni sinensis raw material is taken, is extracted with ethanol, gained extract solution is extracted with ethyl acetate, ethyl acetate layer is taken, concentrated Afterwards, medicinal extract is obtained;
(2) medicinal extract is splined on silicagel column, is 10~1 with volume ratio:1 acetate-methanol is eluted, and must be extracted Thing;
(3) it is 8~2 by the extract volume ratio:1 methylene chloride-methanol elution, is 5 by products therefrom volume ratio ~1:1 chloroform-methanol elution, by products therefrom volume ratio 8~5:1 methylene chloride-methanol elution, then by products therefrom HPLC is prepared by half to be eluted as mobile phase using 55% acetonitrile-water, produces compound I.
4. method according to claim 2, it is characterised in that methods described is specially:
(1) Rhizoma Polygoni sinensis raw material is taken, is extracted with ethanol, gained extract solution is extracted with ethyl acetate, ethyl acetate layer is taken, concentrated Afterwards, medicinal extract is obtained;
(2) medicinal extract is splined on silicagel column, is 10~1 with volume ratio:1 acetate-methanol is eluted, and must be extracted Thing;
(3) it is 5~3 by the extract volume ratio:1 methylene chloride-methanol elution, is 3 by products therefrom volume ratio ~0:1 methylene chloride-methanol elution, then products therefrom is splined on Sephadex LH-20 posts volume ratio 1:1 chloroform- Methanol is eluted, and produces compound II.
5. method according to claim 2, it is characterised in that methods described is specially:
(1) Rhizoma Polygoni sinensis raw material is taken, is extracted with ethanol, gained extract solution is extracted with ethyl acetate, ethyl acetate layer is taken, concentrated Afterwards, medicinal extract is obtained;
(2) medicinal extract is splined on silicagel column, is 100~20 with volume ratio:1 acetate-methanol is eluted, and must be carried Take thing;
(3) it is 8~3 by the extract volume ratio:1 chloroform-methanol elution, products therefrom volume ratio is 1~0:1 Chloroform-methanol is eluted, and products therefrom is splined on Sephadex LH-20 posts volume ratio 1:1 chloroform-methanol elution, producing Compound III.
6. method according to claim 2, it is characterised in that methods described is specially:
(1) Rhizoma Polygoni sinensis raw material is taken, is extracted with ethanol, gained extract solution is extracted with ethyl acetate, ethyl acetate layer is taken, concentrated Afterwards, medicinal extract is obtained;
(2) medicinal extract is splined on silicagel column, is 100~20 with volume ratio:1 acetate-methanol is eluted, and must be carried Take thing;
(3) it is 10~5 by the extract volume ratio:1 chloroform-methanol elution, products therefrom volume ratio is 10~8:1 Chloroform-methanol elution, products therefrom volume ratio be 20~10:1 methylene chloride-methanol elution, produces compound IV;
Or be:
(1) Rhizoma Polygoni sinensis raw material is taken, is extracted with ethanol, gained extract solution is extracted with ethyl acetate, ethyl acetate layer is taken, concentrated Afterwards, medicinal extract is obtained;
(2) medicinal extract is splined on silicagel column, is 100~20 with volume ratio:1 acetate-methanol is eluted, and must be carried Take thing;
(3) it is 3~0 by the extract volume ratio:1 chloroform-methanol elution, products therefrom volume ratio is 3~0:1 Chloroform-methanol is eluted, and is 5~3 by products therefrom volume ratio:1 chloroform-methanol elution, then by products therefrom volume ratio For 5:1 chloroform-methanol elution, produces compound IV.
7. method according to claim 2, it is characterised in that methods described is specially:
(1) Rhizoma Polygoni sinensis raw material is taken, is extracted with ethanol, gained extract solution is extracted with ethyl acetate, ethyl acetate layer is taken, concentrated Afterwards, medicinal extract is obtained;
(2) medicinal extract is splined on silicagel column, is 100~20 with volume ratio:1 acetate-methanol is eluted, and must be carried Take thing;
(3) it is 20~10 by the extract volume ratio:1 chloroform-methanol elution, products therefrom volume ratio be 20~ 10:1 chloroform-methanol elution, products therefrom volume ratio is 20~10:1 chloroform-methanol elution, produces compound V;
Or be:
(1) Rhizoma Polygoni sinensis raw material is taken, is extracted with ethanol, gained extract solution is extracted with ethyl acetate, ethyl acetate layer is taken, concentrated Afterwards, medicinal extract is obtained;
(2) medicinal extract is splined on silicagel column, is 100~20 with volume ratio:1 acetate-methanol is eluted, and must be carried Take thing;
(3) it is 3~0 by the extract volume ratio:1 chloroform-methanol elution, products therefrom volume ratio is 3~0:1 Chloroform-methanol is eluted, and is 3~1 by products therefrom volume ratio:1 chloroform-methanol elution, then by products therefrom volume ratio For 5~1:1 chloroform-methanol elution, produces compound V.
8. compound described in claim 1 prepare anticoagulation, resisting vascular smooth muscle cell proliferation and/or cell-protecting medicines and Application in health products;Preferably, the cytoprotection causes cellular damage to suppress hydrogen peroxide.
9. the application of compound I and compound II in food, medicine, health products and cosmetics are prepared described in claim 1, its It is characterised by, compound I and/or compound II is added as natural red additive.
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