CN112194690B - 3 compounds in radix Rubiae and extraction and separation method - Google Patents

3 compounds in radix Rubiae and extraction and separation method Download PDF

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CN112194690B
CN112194690B CN202011078958.4A CN202011078958A CN112194690B CN 112194690 B CN112194690 B CN 112194690B CN 202011078958 A CN202011078958 A CN 202011078958A CN 112194690 B CN112194690 B CN 112194690B
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马雪
李勇军
汪洋
潘洁
刘春花
王爱民
陆苑
孙佳
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Guizhou Medical University
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    • CCHEMISTRY; METALLURGY
    • C07ORGANIC CHEMISTRY
    • C07HSUGARS; DERIVATIVES THEREOF; NUCLEOSIDES; NUCLEOTIDES; NUCLEIC ACIDS
    • C07H15/00Compounds containing hydrocarbon or substituted hydrocarbon radicals directly attached to hetero atoms of saccharide radicals
    • C07H15/20Carbocyclic rings
    • C07H15/24Condensed ring systems having three or more rings
    • C07H15/244Anthraquinone radicals, e.g. sennosides
    • 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
    • YGENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02ATECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
    • Y02A50/00TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE in human health protection, e.g. against extreme weather
    • Y02A50/30Against vector-borne diseases, e.g. mosquito-borne, fly-borne, tick-borne or waterborne diseases whose impact is exacerbated by climate change

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Abstract

The invention discloses 3 compounds in madder and an extraction and separation method, wherein the compounds provided by the invention are named as follows: 2-methyl-1, 6-dihydroxy-9, 10-anthraquinone-3-xylose- (1.fwdarw.2) and preparation method thereofβD-glucose (1), 1,3, 6-trihydroxy-2-hydroxymethyl-9, 10-anthraquinone-3-O‑β-D-glucose (2), 1-hydroxy-2-hydroxymethyl-9, 10-anthraquinone-11-O- β -D-glucose (3). The invention adopts modern spectrum technology such as 1 H NMR、 13 C NMR, two-dimensional nuclear magnetic spectrum, high resolution mass spectrum and physical and chemical properties of the compound are used for carrying out structural identification on the monomer compound obtained by separation, deducing the molecular structure of the compound, and providing a material basis for further quality control and drug effect research of the madder.

Description

3 compounds in radix Rubiae and extraction and separation method
Technical Field
The invention relates to the field of traditional Chinese medicine extraction and separation, in particular to a compound extracted, separated and identified from a medicinal material of a hook Mao Qiancao and an extraction and separation method thereof.
Background
The hook Mao Qiancao is Rubiaceae Rubia (Rubiaceae)Rubia) Plant hook Mao Qiancao%Rubia oncotrichaHand-mazz.), is distributed in southwest, northeast to southwest and northwest and southwest of Guizhou, etc., and is collected in "quality standard of Chinese medicinal materials and national medicinal materials of Guizhou" (2003 edition), which is a minority medicine of Guizhou province, and has effects of cooling blood, stopping bleeding, relieving cough and eliminating phlegm, etc., and can be used for treating hematemesis, epistaxis, traumatic injury, etc. Modern researches have found that the main ingredients of the madder are naphthoquinone, anthraquinone, terpenoid, dimer compounds and the like.
At present, the research on the chemical components of the madder is less, only Itawa Hideji group and Tan Ninghua group are used for researching the madder, and the main components are naphthoquinone compounds, anthraquinone compounds, terpenoid compounds and dimer compounds, however, the number of the separated and identified compounds is less.
Disclosure of Invention
The invention combines folk medicine method (water decoction or wine soaking) to perform chemical composition research on the n-butyl alcohol extraction part of 70% ethanol extract of the medicinal material of the hook Mao Qiancao, provides three compounds in the radix Rubiae, and simultaneously provides a simple and rapid extraction and separation method for the compounds of the invention, so as to realize the purpose of enriching the substance components of the medicinal material of the hook Mao Qiancao and providing theoretical basis for research on the later-period pharmacodynamic substance basis.
In order to achieve the above object of the present invention, the present invention provides the following technical solutions:
the compounds provided by the invention are named: 2-methyl-1, 6-dihydroxy-9, 10-anthraquinone-3-xylose- (1.fwdarw.2) and preparation method thereofβD-glucose (1), 1,3, 6-trihydroxy-2-hydroxymethyl-9, 10-anthraquinone-3-O-β-D-glucose (2), 1-hydroxy-2-hydroxymethyl-9, 10-anthraquinone-11-O- β -D-glucose (3), having the structural formula:
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the invention also provides a method for extracting and separating the compound in the madder, which comprises the following specific steps:
step 1, cutting dry Mao Qiancao roots and rhizomes of the hooks into small sections, reflux-extracting with 70% ethanol for 3 times, extracting with 10 times of volume for 2 h for the first time, extracting with 8 times of volume for 1.5 h for the second time, extracting with 8 times of volume for 1.5 h for the third time, mixing the 3 times of extracting solutions, recovering ethanol under reduced pressure, and volatilizing until no alcohol smell exists to obtain extract.
And 2, dissolving and dispersing the extract with water, and then extracting with petroleum ether, ethyl acetate and n-butanol respectively to obtain a petroleum ether part, an ethyl acetate part, an n-butanol part and a water part respectively.
And 3, taking n-butanol sections, separating by normal phase silica gel column chromatography, gradient eluting by methylene dichloride-methanol (50:1-1:1), detecting by thin layer chromatography, and combining similar components by different color development modes to obtain 7 components Fr.1-Fr.7.
And 4, subjecting Fr.2 to normal phase silica gel column chromatography, eluting with ethyl acetate-methanol (15:1-1:1), and detecting and combining the same components by thin layer chromatography to obtain a plurality of components. Eluting one of the components with ethyl acetate-methanol (8:1) to obtain different sub-components, and subjecting one of the sub-components to normal phase silica gel column chromatography, such as dichloromethane: gradient eluting with methanol (8:1-4:1), and subjecting to Toyopearl HW-40F column chromatography with methanol and chloroform respectively: eluting with methanol (1:1) to obtain compound 1.
And 5, subjecting Fr.4 to Sephadex LH-20 column chromatography, eluting with methanol, and detecting and combining the same fractions by thin layer chromatography to obtain a plurality of components. Subjecting one of the components to Toyopearl HW-40F column chromatography and methanol elution to obtain different subfractions, and subjecting one of the subfractions to MCI column chromatography, methanol-water elution and Toyopearl HW-40F column and methanol elution to obtain compound 2.
And 6, eluting Fr.6 by normal phase silica gel column chromatography and ethyl acetate-methanol (15:1-1:1), detecting and combining the same fractions by thin layer chromatography to obtain a plurality of components. Subjecting one of the components to Sephadex LH-20 column chromatography, chloroform: methanol (1:1) elution yields the different subfractions. Then, a certain subfraction is subjected to Sephadex LH-20 column chromatography and methanol elution to obtain a plurality of small fractions, and then, the fractions are subjected to Sephadex LH-20 column chromatography and chloroform: methanol (1:1) to obtain 2 components, subjecting one component to normal phase silica gel column chromatography, eluting with ethyl acetate-methanol (15:1-1:1), and eluting with Toyopearl HW-40F column chromatography to obtain compound 3.
The invention has the following technical effects: the invention adopts modern spectrum technology such as 1 H NMR、 13 C NMR, two-dimensional nuclear magnetic spectrum, high resolution mass spectrum and physical and chemical properties of the compound are used for carrying out structural identification on the monomer compound obtained by separation, deducing the molecular structure of the compound, and providing a material basis for further quality control and drug effect research of the madder.
Drawings
FIG. 1 HR-ESI-MS of compound 1 of the present invention;
FIG. 2 HR-ESI-MS of compound 2 of the present invention;
FIG. 3 HR-ESI-MS of compound 3 of the present invention;
FIG. 4 Compound 1 of the present invention 1 H-NMR chart (DMSO);
FIG. 5 Compound 1 of the present invention 13 C-NMR chart (DMSO);
FIG. 6 Compound 2 1 H-NMR chart (DMSO);
FIG. 7 Compound 2 1 H-NMR chart (DMSO);
FIG. 8 HMBC pattern (DMSO) of Compound 2;
FIG. 9 Compound 3 1 H-NMR chart (DMSO);
FIG. 10 Compound 3 13 C-NMR chart (DMSO);
FIG. 11 HMBC pattern (DMSO) of Compound 3;
FIG. 12 HMQC map (DMSO) of Compound 3.
Description of the embodiments
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention. The technical features of the embodiments of the present invention described below may be combined with each other as long as they do not collide with each other. The ingredients or materials involved in the methods described below, unless otherwise specified, are commercially available. The related experimental methods are all conventional methods in the technical field unless specifically described. Wherein the numerical values or numerical proportions, unless noted otherwise, refer to the mass values or mass proportions.
Examples
Step 1: cutting dried root and rhizome of ramulus Uncariae cum Uncis Mao Qiancao and 5 kg into small segments of about 1-2cm, reflux-extracting with 70% ethanol for 3 times, extracting with 10 times of volume for 2 h times, 8 times of volume for 1.5 h times, and 8 times of volume for 1.5 h times, mixing the 3 times of extractive solutions, recovering ethanol under reduced pressure, and volatilizing to obtain extract.
Step 2: the extract is dissolved and dispersed by water, and then is extracted by petroleum ether, ethyl acetate and n-butanol respectively in sequence to obtain petroleum ether part (55 g), ethyl acetate part (65 g), n-butanol part (215 g) and water part (257 g) respectively.
Step 3: separating n-butanol segment by normal phase silica gel column chromatography, gradient eluting with dichloromethane-methanol (50:1-1:1), detecting by thin layer chromatography, and combining similar components to obtain 7 components Fr.1-Fr.7.
Step 4: fr.2 (44.08 g) was eluted with normal phase silica gel column chromatography, ethyl acetate-methanol (15:1-1:1), and the same fractions were combined by thin layer chromatography detection to give 9 fractions (Fr.2.1 to Fr.2.9). Fr.2.4 was subjected to normal phase silica gel column chromatography eluting with ethyl acetate-methanol (8:1) to give 5 fractions (Fr.2.4.1-Fr.2.4.5), wherein Fr.2.4.5 was subjected to normal phase silica gel column chromatography, dichloromethane: gradient eluting with methanol (8:1-4:1), and subjecting to Toyopearl HW-40F column chromatography with methanol and chloroform respectively: methanol (1:1) to give compound 1 (10 mg).
Step 5: fr.4 (10.72 g) was subjected to Sephadex LH-20 column chromatography, methanol elution, and thin layer chromatography to detect the combined same fractions, yielding 6 fractions (Fr.4.1-Fr.4.6). Fr.4.4 was subjected to Toyopearl HW-40F column chromatography and methanol was eluted to obtain 3 fractions (Fr.4.4.1 to Fr.4.4.3), then Fr.4.4.2 was subjected to MCI column chromatography, methanol-water elution, toyopearl HW-40F column and methanol was eluted to obtain compound 2 (9 mg).
Step 6: fr.6 (14.00 g) was subjected to normal phase silica gel column chromatography, ethyl acetate-methanol (15:1-1:1) gradient elution, and the same fractions were combined by thin layer chromatography detection to obtain 5 fractions (Fr.6.1 to Fr.6.5). Fr.6.3 was purified by Sephadex LH-20 column chromatography, chloroform: methanol (1:1) to obtain 6 components (Fr.6.3.1-Fr.6.3.6). Then Fr.6.3.1 is subjected to Sephadex LH-20 column chromatography and methanol is eluted to obtain 6 components (Fr.6.3.1.1-Fr.6.3.1.6), and Fr.6.3.1.4 is subjected to Sephadex LH-20 column chromatography and chloroform: methanol (1:1) is eluted to obtain 2 components (Fr.6.3.1.4.1-Fr.6.3.1.4.2), wherein Fr.6.3.1.4.1 is subjected to normal phase silica gel column chromatography, ethyl acetate-methanol (15:1-1:1) gradient elution is carried out, toyopearl HW-40F column chromatography is carried out, and the methanol is eluted to obtain a compound 3 (8.7 mg).
Conditions for TLC detection performed in the present invention: color developer a: fluorescence was observed under an ultraviolet lamp (254 nm,365 nm); developer b: iodine color development; color developer c:10% sulfuric acid ethanol.
And (3) structural identification: using modern spectroscopic techniques, e.g. 1 H NMR、 13 C NMR, two-dimensional nuclear magnetic spectrum and high-resolution mass spectrum to carry out structural identification on the monomer compound obtained by separation.
Compound 1: pale yellow amorphous powder. HR-ESI-MSm/z: 563.1400 [M–H] (calculated value: 563.1399), molecular formula C 26 H 28 O 14 The compound was determined by spectroscopic techniques to be 2-methyl-1, 6-dihydroxy-9, 10-anthraquinone-3-xylose- (1→2) - β -D-glucose. The nuclear magnetic data are shown in Table 1.
Compound 2: pale yellow amorphous powder. HR-ESI-MSm/z: 447.0920 [M-H] - (calculated value: 447.0921), molecular formula C 21 H 20 O 11 Determination of the Compound as 1,3, 6-trihydroxy-2-hydroxymethyl-9, 10-anthraquinone-3-by spectroscopic techniquesO-β-D-glucose. The nuclear magnetic data are shown in Table 2.
Compound 3: pale yellow amorphous powder. HR-ESI-MSm/z: 415.1025 [M-H] - (calculated value: 415.1023), molecular formula C 21 H 20 O 9 Determination of the Compound as 1-hydroxy-2-hydroxymethyl-9, 10-anthraquinone-11-by spectroscopic techniquesO-β-D-glucose. The nuclear magnetic data are shown in Table 3.
TABLE 1 Compound 1 1 H-NMR (DMSO, 400 MHz) and 13 C-NMR (DMSO, 100 MHz) data
Pos. δ C δ H
1 163.8
2 120.6
3 160.4
4 105.6 7.38, 1H, s
4a 135.3
5 112.7 7.46, 1H, s
6 161.3
7 121.5 7.22, 1H, d, J = 8.0 Hz
8 129.7 8.09, 1H, d, J = 8.8 HZ
8a 124.3
9 186.4
9a 110.6
10 181.7
10a 132.0
CH 3 2.13, 3H, s
1′ 97.9 4.49, 1H, d, J = 7.6 Hz
2′ 82.4
3′ 76.2
4′ 68.9
5′ 75.9
6′ 60.2
1″ 105.1 5.32, 1H, d, J = 5.6 Hz
2″ 74.6
3″ 77.1
4″ 69.4
5″ 68.9
TABLE 2 Compound 2 1 H-NMR (DMSO, 400 MHz) and 13 C-NMR (DMSO, 100 MHz) data
Pos. δ C δ H HMBC
1 161.6
2 123.8
3 161.8
4 106.1 7.41, 1H, s C-2, 3, 10, 4a, 9a
4a 133.8
5 112.9 7.48, 1H, d, J = 2.4 Hz C-6, 7, 10, 8a
6 164.3
7 121.7 7.24, 1H, dd, J = 2.8, 8.8 Hz C-5, 8a
8 129.7 8.09, 1H, d, J = 8.8 HZ C-6, 9, 10a
8a 124.1
9 186.3
9a 111.1
10 181.7
10a 135.3
11 50.9 4.62, 1H, d, J = 11.2 Hz C-1, 2,
4.54, 1H, d, J = 11.2 Hz C-1, 2,
1′ 100.9 5.06, 1H, d, J = 7.6 Hz C-3
2′ 73.4
3′ 77.4
4′ 69.4
5′ 76.0
6′ 60.4
TABLE 3 Compound 3 1 H-NMR (DMSO, 400 MHz) and 13 C-NMR (DMSO, 100MHz)
Pos. δ C δ H HMBC
1 158.5
2 134.1
3 134.6 8.04, 1H, d, J = 7.6 Hz C-1, 4a, 11
4 118.6 7.74, 1H, d, J = 7.6 Hz C-2, 9a, 10
4a 131.8
5 126.9 8.19, 1H, m C-7, 10
6 135.2 7.95, 1H, m C-5, 8, 8a, 10a
7 134.7 7.95, 1H, m C-5, 8, 8a, 10a
8 126.6 8.24, 1H, m C-6, 9
8a 133.2
9 188.6
9a 115.2
10 181.8
10a 132.8
11 64.0 4.91, 1H, d, J = 15.2 Hz C-1, 2, 1′
4.76, 1H, d, J = 15.2 Hz C-1, 2, 1′
1′ 102.7 4.34, 1H, d, J = 7.6 Hz C-11
2′ 73.6
3′ 77.1
4′ 70.0
5′ 76.7
6′ 61.0
although the present invention has been described with reference to the foregoing embodiments, it will be apparent to those skilled in the art that modifications may be made to the embodiments described in the foregoing examples, or equivalents may be substituted for elements thereof, and any modifications, equivalents, improvements and changes may be made without departing from the spirit and principles of the present invention.

Claims (3)

1. The extraction and separation method of 3 compounds in the madder is characterized by comprising the following steps:
step 1: repeatedly reflux-extracting ramulus Uncariae cum Uncis Mao Qiancao with ethanol, mixing the extractive solutions, and concentrating to obtain extract;
step 2: extracting the extract obtained in the step 1 with petroleum ether, ethyl acetate and n-butanol in sequence to obtain petroleum ether part, ethyl acetate part, n-butanol part and water part respectively;
step 3: taking the n-butanol part obtained in the step 2, performing crude separation by normal phase silica gel column chromatography, detecting by thin layer chromatography, developing, and combining the developed elution parts to obtain 7 components Fr.1-Fr.7;
step 4: subjecting Fr.2 obtained in step 3 to normal phase column chromatography, eluting with ethyl acetate-methanol, and detecting and mixing the same flow components by thin layer chromatography to obtain a plurality of components; wherein, a certain component is separated by normal phase silica gel column chromatography and Toyopearl HW-40F column chromatography to obtain the compound 1;
step 5: subjecting Fr.4 obtained in step 3 to Sephadex LH-20 column chromatography, eluting with methanol, and detecting and mixing the same flow components by thin layer chromatography to obtain a plurality of components; wherein, a certain component is repeatedly eluted by a Toyopearl HW-40F column chromatography, MCI and Toyopearl HW-40F column chromatography to obtain a compound 2;
step 6: subjecting Fr.6 obtained in step 3 to normal phase silica gel column chromatography, eluting with ethyl acetate-methanol, and detecting and mixing the same components by thin layer chromatography to obtain a plurality of components; wherein, a certain component is repeatedly eluted by Sephadex LH-20 column chromatography and normal phase silica gel column chromatography to obtain a compound 3;
extraction to obtain 3 compounds in the madder, wherein the names of the 3 compounds are as follows: 2-methyl-1, 6-dihydroxy-9, 10-anthraquinone-3-xylose- (1.fwdarw.2) and preparation method thereofβD-glucose (1), 1,3, 6-trihydroxy-2-hydroxymethyl-9, 10-anthraquinone-3-O-βD-glucose (2), 1-hydroxy-2-hydroxymethyl-9, 10 anthraquinone-11-O-β-D-glucose (3); the corresponding structural formula is as follows:
2. the method for preparing three compounds in the madder root according to claim 1, characterized in that: in step 1, the reflux extraction is performed 3 times with 70% ethanol, wherein the first 10 times of volume extraction is 2. 2 h, the second 8 times of volume extraction is 1.5 h, and the third 8 times of volume extraction is 1.5 h.
3. The method for preparing three compounds in the madder root according to claim 1, characterized in that: in the steps 3,4 and 6, silica gel with 100-300 meshes is selected for chromatographic separation.
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Citations (2)

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Publication number Priority date Publication date Assignee Title
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CN103550237A (en) * 2013-11-11 2014-02-05 南京中医药大学 Composition of active ingredients of rubia cordifolia as well as application of composition in medicines

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Publication number Priority date Publication date Assignee Title
CN1397541A (en) * 2001-07-20 2003-02-19 中国人民解放军军事医学科学院放射医学研究所 Trijuganone and its derivative, and its preparing process and application
CN103550237A (en) * 2013-11-11 2014-02-05 南京中医药大学 Composition of active ingredients of rubia cordifolia as well as application of composition in medicines

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