CN107619401A - A kind of preparation method of senkyunolide Ⅰ - Google Patents

A kind of preparation method of senkyunolide Ⅰ Download PDF

Info

Publication number
CN107619401A
CN107619401A CN201711082169.6A CN201711082169A CN107619401A CN 107619401 A CN107619401 A CN 107619401A CN 201711082169 A CN201711082169 A CN 201711082169A CN 107619401 A CN107619401 A CN 107619401A
Authority
CN
China
Prior art keywords
senkyunolide
water
extract
sodium
reaction
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
Application number
CN201711082169.6A
Other languages
Chinese (zh)
Other versions
CN107619401B (en
Inventor
陈雏
吴燕
李彬
杜蕾蕾
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Sichuan Academy of Chinese Medicine Sciences SACMS
Original Assignee
Sichuan Academy of Chinese Medicine Sciences SACMS
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Sichuan Academy of Chinese Medicine Sciences SACMS filed Critical Sichuan Academy of Chinese Medicine Sciences SACMS
Priority to CN201711082169.6A priority Critical patent/CN107619401B/en
Publication of CN107619401A publication Critical patent/CN107619401A/en
Application granted granted Critical
Publication of CN107619401B publication Critical patent/CN107619401B/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Landscapes

  • Medicines Containing Plant Substances (AREA)
  • Heterocyclic Carbon Compounds Containing A Hetero Ring Having Oxygen Or Sulfur (AREA)

Abstract

The invention discloses a kind of preparation method of senkyunolide Ⅰ, belong to traditional Chinese medicine ingredients preparing technical field, its method is using the extract containing Ligustilide as raw material, in basic aqueous solvent with after ammonium persulfate-sodium bisulfate heating response, reaction solution obtains senkyunolide Ⅰ sterling through extraction, column chromatography for separation;Extract of the invention containing Ligustilide is raw material, and senkyunolide Ⅰ is prepared with the method that chromatographic isolation is combined by chemical conversion, has the characteristics of few simple process, solvent consumption, high income, is adapted to a large amount of senkyunolide Ⅰs for preparing high-purity.

Description

A kind of preparation method of senkyunolide Ⅰ
Technical field
The present invention relates to traditional Chinese medicine ingredients preparing technical field, more particularly to a kind of preparation method of senkyunolide Ⅰ.
Background technology
Senkyunolide Ⅰ(senkyunolide Ⅰ)For pale yellow oil, belong to crude benzene phthalein compounds, mainly deposit It is samphire, such as Ligusticum wallichii(Ligusticum chuanxiongHort.), Radix Angelicae Sinensis(Angelica sinensis (Oliv.) Diels), Jehol Ligusticum Rhizome(Ligusticum sinenseOliv.)Deng volatile oil or fat-soluble extract in.
The chemical constitution of senkyunolide Ⅰ is as follows:
It is reported that senkyunolide Ⅰ is one of active component of chuanxiong and Radix Angelicae Sinensis, and can pass through blood-brain barrier, can The hot plate method mouse threshold of pain is reduced, suppresses writhing response caused by glacial acetic acid, to nitric oxide in Migraine Rats body(NO), 5- hydroxyls Tryptamines(5-HT), Calcitonin Gene Related to Peptide(CGRP)And beta-endorphin(β-EP)Deng the endogenous thing closely related with migraine Matter has regulating and controlling effect.Therefore, senkyunolide Ⅰ has certain therapeutic action to antimigraine.Senkyunolide Ⅰ can also Mitigate erythrocyte deformed injury, reduce erythrocyte aggregation;Reduce the nitric oxide in ischemia-reperfusion animal model brain stem Content, suppress the activity of nitricoxide synthase.So based on current research and application, for senkyunolide Ⅰ demand very Greatly.
However, the senkyunolide Ⅰ content contained by natural plants is very low, the content in Ligusticum wallichii, Radix Angelicae Sinensis is typically smaller than 0.1%(w/w), such as, Liu Jinliang etc. " content of 5 kinds of effective components in HPLC measure Different Harvesting Time Ligusticum chuanxiong Horts " report river Senkyunolide Ⅰ content is 0.58 mg/g in rhizome of chuanxiong medicinal material, i.e., 0.058%(w/w)." survey to be commented method while determines river field fine jade etc. The content of a variety of chemical compositions in rhizome of chuanxiong, angelica sinensis " report 24 batch ligusticum wallichii decoction pieces in senkyunolide Ⅰ content be 1.09~ 3.34 mg/g, senkyunolide Ⅰ content is 0.04~0.77 mg/g in 26 batch angelica sinensis.
The method that separation at present prepares senkyunolide Ⅰ mainly has repeatedly column chromatography, prepares thin-layer chromatography, half preparation efficiently The shortcomings that different all be present in liquid chromatogram, preparative high-performance liquid chromatographic, high speed adverse current chromatogram etc., these methods:
For example Chinese patent CN200910200693.8 discloses a kind of side that senkyunolide Ⅰ is prepared from angelica extract Method, using Radix Angelicae Sinensis medicinal material as raw material, the separation skill such as macroporous adsorbent resin column chromatography, solvent extraction, silica gel column chromatography is employed successively Art, its complex steps, organic solvent consumption are big, and ultimate yield is only 0.07%~0.09%.
The A of Chinese patent CN 104003963 are prepared using high speed adverse current chromatogram, using partly preparing high-efficient liquid phase color The methods of spectrum, preparative high-performance liquid chromatographic, is high for equipment requirement, and input is big.
To sum up, senkyunolide Ⅰ is largely prepared at present in the presence of consumption raw material is more, yield is low, reagent consumption is big, technique is complicated Etc. difficulty, it is unfavorable for industrialized production.And limited source, the difficult further investigation limited to it of preparation of senkyunolide Ⅰ And new drug development.
The content of the invention
The purpose of the present invention, which is that, provides a kind of preparation method of senkyunolide Ⅰ, to solve the above problems.
To achieve these goals, the technical solution adopted by the present invention is such:A kind of preparation method of senkyunolide Ⅰ, Using the extract containing Ligustilide as raw material, with after ammonium persulfate-sodium bisulfate heating response, reacting in basic aqueous solvent Liquid obtains senkyunolide Ⅰ sterling through extraction, column chromatography for separation.
Above-mentioned ammonium persulfate-sodium bisulfate is OXONE, and its chemical formula is 2KHSO5 · KHSO4 · K2SO4
As preferable technical scheme:The aqueous solvent is selected from water-tetrahydrofuran, water -1,4- dioxane, water-fourth Ketone, boiling, water-methanol, water-ethanol, water-isopropanol.
As further preferred technical scheme:The volume ratio of the aqueous solvent reclaimed water is 30%~70%.
As preferable technical scheme:The alkalescence is by toward adding sodium carbonate, potassium carbonate, bicarbonate in reaction system Sodium, saleratus, sodium hydroxide, potassium hydroxide, sodium acetate, potassium acetate, the one or more of ammoniacal liquor are realized.
As preferable technical scheme:The reaction temperature of the heating is 30 DEG C~150 DEG C.
As further preferred technical scheme:The reaction temperature of the heating is 50 DEG C~100 DEG C.
As preferable technical scheme:The reaction time of the heating response is 0.5 hour~24 hours.
As further preferred technical scheme:The reaction time of the heating response is 1 hour~12 hours.
Compared with prior art, the advantage of the invention is that:The present invention is with Ligusticum wallichii, Radix Angelicae Sinensis and/or Jehol Ligusticum Rhizome etc. containing in Jehol Ligusticum Rhizome The extract of ester is raw material, and the Ligustilide of wherein high content is changed into senkyunolide I by chemically reacting first, so as to The content of senkyunolide I in extract is significantly improved, it is pure then with chromatography separating method to prepare senkyunolide I again Product.It is low that the present invention significantly improves senkyunolide I content in plant, it is difficult to the problem of largely preparing.
Brief description of the drawings
Fig. 1 is the HPLC figures before Rhizoma Chuanxiong extract reaction;
Fig. 2 schemes for reacted HPLC.
In figure:A, senkyunolide Ⅰ;B, Ligustilide
Embodiment
Below in conjunction with accompanying drawing, the invention will be further described.
Embodiment 1
A kind of preparation method of senkyunolide Ⅰ, its step are:
(1)The preparation of Rhizoma Chuanxiong extract:The kg of Ligusticum chuanxiong Hort 1, crush, extracted 2 times with 8 times of 80% alcohol refluxs of amount, merge extraction Liquid, 45 DEG C of decompressions steam solvent, and gained medicinal extract is extracted with ethyl acetate after moisture dissipates, and merges organic layer, 45 DEG C of decompressions steam Solvent, obtain oil-like extracts 56.4g, i.e. Rhizoma Chuanxiong extract;
(2)Reaction:By water-ethanol mixed solution(50:50, v/v)300 ml, step(1)The obtained g of Rhizoma Chuanxiong extract 15 (Ligustilide content 19.5%, w/w;Senkyunolide I 0.8%, w/w)Sequentially add in 500 ml round-bottomed flasks, stir at room temperature Mix 5 minutes;The g of ammonium persulfate-sodium bisulfate 30, the finely ground mixings of the g of sodium acid carbonate 12 are taken, is slowly added in reaction system, room temperature Lower stirring 10 minutes, then heat to 80 DEG C and react 3 hours;
Heating response 0 hour and separately sampled detection in 3 hours, obtained chromatogram is respectively as shown in Figure 1 and Figure 2;
HPLC detection methods are as follows:Waters Acquity UPLC chromatographic systems;Trifluoroacetic acid aqueous solution, Milli-Q ultra-pure waters, its Remaining reagent is that analysis is pure;Chromatographic column is Waters BEH C18 (mm of 50 mm × 2.1 i.d., 1.7 μm);Mobile phase is Acetonitrile(A)- 0.1% phosphoric acid water(B);The min of gradient elution 0~0.5(20% A), 0.5~3.0 min(The A of 20% A~70%), 3.0-3.5 min(The A of 70% A~100%), 3.5~4.0 min(100% A), 4.0~4.01 min(The A of 100% A~20%), 4.01~5.0 min(20% A);The mL/min of flow velocity 0.4;The C of column temperature 35;The nm of Detection wavelength 280;
As a result show:Before reaction, Ligustilide concentration in solution system(9.75 mg/ml)Far above senkyunolide I(0.43 mg/ml);By reaction, Ligustilide substantially tails off(1.02 mg/ml), it is converted primarily into as senkyunolide I(4.53 mg/ ml);
(3)Separation:After reaction terminates, insoluble matter is filtered to remove, obtains filtrate.40 DEG C of gained filtrate is concentrated under reduced pressure after removing ethanol It is extracted with ethyl acetate (100 ml × 3 time).Upper silicagel column after ethyl acetate layer concentration(φ40 mm×300 mm)Separation, stream Dynamic is mutually petroleum ether-ethyl acetate(1:1, v/v).TLC is detected, and condition is as follows:Silica G F254High Performance Thin plate, solvent are stone Oily ether-ethyl acetate(1:2, v/v), Rf value=0.35;
Merge cut after detection, remove solvent under reduced pressure, obtain the g of pale yellow oil 1.1.Contrast, confirm through NMR, UV and reference substance For senkyunolide Ⅰ(HPLC purity 95.1%);
The spectroscopic data of the senkyunolide Ⅰ of purifying:UVλmax (MeOH):279 nm;ESI-MS shows quasi-molecular ion [M+ Na]+'sm/zFor 247.0968, molecular formula C is prompted12H16O41H-NMR (CD3COCD3) δ: 0.95 (3H, t, j = 7.2 Hz, H-13), 1.52 (2H, sext, j=7.2 Hz, H-12), 1.90~1.94 (1H, m, H-5), 2.33 (2H, q, H-9), 4.01 (1H, d, j =1.8 Hz, H-6), 4.28 (1H, d, j = 1.8 Hz, H- 7), 5.43(1H, d, j= 7.8 Hz , H-10);13C-NMR (CD3COCD3)δ: 169.6 (C-1), 149.6 ( C-3), 24.8 (C-4), 22. 9 (C-5), 70.3 (C-6), 79.2 (C-7), 126.9 (C-8), 154.3 (C- 9), 112.6 (C-10), 28.7 (C-11), 17.8 (C-12), 14.1 (C-13)。
Embodiment 2
A kind of preparation method of senkyunolide Ⅰ, its step are:
(1)The preparation of angelica extract:The kg of Radix Angelicae Sinensis medicinal material 5, crush, cross No. 3 sieves, with extraction by steam distillation, obtain Radix Angelicae Sinensis and wave The g of hair oil 27.8;
(2)Reaction:By water -1,4- dioxane(50:50, v/v)200 ml, step(1)The obtained g of Chinese angelica volatile oil 10 (Ligustilide content 55.1%, w/w;Senkyunolide I 3.2%, w/w)Sequentially add in 500 ml round-bottomed flasks, stir at room temperature Mix 10 minutes.The g of ammonium persulfate-sodium bisulfate 45, the finely ground mixings of the g of sodium acid carbonate 16 are taken, is slowly added in reaction system, room temperature Lower stirring 30 minutes, then heat to 100 DEG C and react 6 hours;
(3)Separation:After reaction terminates, be filtered to remove insoluble matter, 50 DEG C of filtrate is concentrated under reduced pressure remove Isosorbide-5-Nitrae-dioxane after use second Acetoacetic ester extracts (100 ml × 3 time).After ethyl acetate layer concentration, add in a small amount of upper C18 silica gel of ethanol dissolving and suppress standby post(φ 49 mm×460 mm)Separation, mobile phase is water-ethanol(65:35, v/v);
Merge cut after detection, remove solvent under reduced pressure, obtain the g of senkyunolide Ⅰ 2.9(HPLC purity 96.2%).
Embodiment 3
A kind of preparation method of senkyunolide Ⅰ, its step are:
(1)The preparation of Rhizoma Ligustici extract:The kg of Raw Rhizoma Ligustici 2, crush, cross No. 3 sieves, with extraction by steam distillation, obtain Jehol Ligusticum Rhizome and wave The g of hair oil 14.3;
(2)Reaction:By water-butanone(40:60, v/v)200 ml, step(1)The obtained g of ligusticum sinense volatile oil 10(Ligustilide Content 28.2%, w/w;Senkyunolide I 1.4%, w/w)Sequentially add in 500 ml round-bottomed flasks, stir 5 minutes at room temperature. The g of ammonium persulfate-sodium bisulfate 30, the finely ground mixings of the g of sodium acetate 12 are taken, is slowly added in reaction system, stirs 30 points at room temperature Clock, then heat to 60 DEG C and react 12 hours;
(3)Separation:After reaction terminates, be filtered to remove insoluble matter, 50 DEG C of filtrate is concentrated under reduced pressure remove butanone after extracted with ethyl acetate Take (100 ml × 3 time).After ethyl acetate layer concentration, add in a small amount of upper C18 silica gel of ethanol dissolving and suppress standby post(φ36 mm× 460 mm)Separation, mobile phase is water-ethanol(65:35, v/v).Cut merges after HPLC is detected is evaporated off solvent, obtains foreign Ligusticum wallichii The g of lactone I 1.22(HPLC purity 96.7%).
Embodiment 4
A kind of preparation method of senkyunolide Ⅰ, its step are:
By water-ethanol(30:70, v/v)20 ml, Ligustilide crude product(Content 85%, w/w)1 g, sequentially add 50 ml round bottoms In flask, stir 5 minutes at room temperature.The g of ammonium persulfate-sodium bisulfate 6, the finely ground mixings of the g of saleratus 2.4 are taken, is slowly added to In reaction system, stir 30 minutes at room temperature, then heat to 50 DEG C and react 20 hours.After reaction terminates, it is filtered to remove insoluble Thing, 50 DEG C of filtrate be concentrated under reduced pressure remove ethanol after be extracted with ethyl acetate (20 ml × 3 time).After ethyl acetate layer concentration, add few Measure in the upper C18 silica gel of ethanol dissolving and suppress standby post(φ26 mm×460 mm)Separation, mobile phase is water-ethanol(65:35, v/ v).Cut merges after HPLC is detected is evaporated off solvent, obtains the g of senkyunolide Ⅰ 0.43(Conversion yields 50.6%, HPLC purity 98.1%).
The foregoing is merely illustrative of the preferred embodiments of the present invention, is not intended to limit the invention, all essences in the present invention All any modification, equivalent and improvement made within refreshing and principle etc., should be included in the scope of the protection.

Claims (10)

  1. A kind of 1. preparation method of senkyunolide Ⅰ, it is characterised in that:Using the extract containing Ligustilide as raw material, in alkalescence In aqueous solvent with after ammonium persulfate-sodium bisulfate heating response, reaction solution through extraction, column chromatography for separation, that is, obtain in foreign Ligusticum wallichii The sterling of ester I.
  2. 2. according to the method for claim 1, it is characterised in that:The aqueous solvent is selected from water-tetrahydrofuran, water -1,4- Dioxane, water-butanone, boiling, water-methanol, water-ethanol, water-isopropanol.
  3. 3. according to the method for claim 2, it is characterised in that:The volume ratio of the aqueous solvent reclaimed water be 30%~ 70%。
  4. 4. according to the method for claim 1, it is characterised in that:The alkalescence is by toward adding carbonic acid in reaction system Sodium, potassium carbonate, sodium acid carbonate, saleratus, sodium hydroxide, potassium hydroxide, sodium acetate, potassium acetate, the one or more of ammoniacal liquor Come what is realized.
  5. 5. according to the method for claim 1, it is characterised in that:The reaction temperature of the heating is 30 DEG C~150 DEG C.
  6. 6. according to the method for claim 5, it is characterised in that:The reaction temperature of the heating is 50 DEG C~100 DEG C.
  7. 7. according to the method for claim 1, it is characterised in that:The reaction time of the heating response is 0.5 hour~24 Hour.
  8. 8. according to the method for claim 7, it is characterised in that:The reaction time of the heating response is 1 hour~12 small When.
  9. 9. according to the method for claim 1, it is characterised in that:Ligustilide content is 10%~95% in the extract.
  10. 10. according to the method for claim 1, it is characterised in that:The extract is in Ligusticum wallichii, Radix Angelicae Sinensis, Jehol Ligusticum Rhizome Any one or more.
CN201711082169.6A 2017-11-07 2017-11-07 A kind of preparation method of senkyunolide Ⅰ Active CN107619401B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201711082169.6A CN107619401B (en) 2017-11-07 2017-11-07 A kind of preparation method of senkyunolide Ⅰ

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201711082169.6A CN107619401B (en) 2017-11-07 2017-11-07 A kind of preparation method of senkyunolide Ⅰ

Publications (2)

Publication Number Publication Date
CN107619401A true CN107619401A (en) 2018-01-23
CN107619401B CN107619401B (en) 2019-09-20

Family

ID=61093452

Family Applications (1)

Application Number Title Priority Date Filing Date
CN201711082169.6A Active CN107619401B (en) 2017-11-07 2017-11-07 A kind of preparation method of senkyunolide Ⅰ

Country Status (1)

Country Link
CN (1) CN107619401B (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN108354077A (en) * 2018-03-07 2018-08-03 余姚辉农农业科技有限公司 A kind of first farrowing sow feed addictive, feed and preparation method thereof
CN110615798A (en) * 2019-10-28 2019-12-27 四川省中医药科学院 Preparation method of 6,7-epoxy ligustilide
CN113845501A (en) * 2021-10-25 2021-12-28 四川省中医药科学院 Preparation method of senkyunolide J

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102108071A (en) * 2009-12-24 2011-06-29 上海张江中药现代制剂技术工程研究中心 Method for preparing ligustilide I from Szechwan lovage rhizome extract
CN102716160A (en) * 2012-06-28 2012-10-10 天津大学 Hemlock parsley phthalide type ingredient effective part as well as preparation method and application of hemlock parsley phthalide type ingredient effective part

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102108071A (en) * 2009-12-24 2011-06-29 上海张江中药现代制剂技术工程研究中心 Method for preparing ligustilide I from Szechwan lovage rhizome extract
CN102716160A (en) * 2012-06-28 2012-10-10 天津大学 Hemlock parsley phthalide type ingredient effective part as well as preparation method and application of hemlock parsley phthalide type ingredient effective part

Non-Patent Citations (5)

* Cited by examiner, † Cited by third party
Title
SONG-LIN LI等: ""Post-Harvest Alteration of the Main Chemical Ingredients in Ligusticum chuanxiong HORT. (Rhizoma Chuanxiong)"", 《CHEM. PHARM. BULL.》 *
TAKASHI NAITO等: ""Two phthalides from Ligusticum chuangxiong"", 《PHYTOCHEMISTR》 *
WEIMING ZHU等: ""Oxidation of Alkenes with Aqueous Potassium Peroxymonosulfate and No Organic Solvent"", 《J. ORG. CHEM.》 *
熊耀坤等: ""应用反相高效制备液相同时分离川芎中阿魏酸、洋川芎内酯I和H"", 《中国中药杂志》 *
谢如刚: "《现代有机合成化学》", 31 January 2007, 华东理工大学出版社 *

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN108354077A (en) * 2018-03-07 2018-08-03 余姚辉农农业科技有限公司 A kind of first farrowing sow feed addictive, feed and preparation method thereof
CN110615798A (en) * 2019-10-28 2019-12-27 四川省中医药科学院 Preparation method of 6,7-epoxy ligustilide
CN113845501A (en) * 2021-10-25 2021-12-28 四川省中医药科学院 Preparation method of senkyunolide J
CN113845501B (en) * 2021-10-25 2024-01-26 四川省中医药科学院 Preparation method of senkyunolide J

Also Published As

Publication number Publication date
CN107619401B (en) 2019-09-20

Similar Documents

Publication Publication Date Title
CN107619401B (en) A kind of preparation method of senkyunolide Ⅰ
CN104031013B (en) A kind of utilize the isolated and purified method preparing salvianolic acid B and rosmarinic acid of high speed adverse current chromatogram
CN108218927B (en) Flavonoid glycoside compounds in Elaeagnus angustifolia flower and preparation method thereof
CN102351824A (en) Method for preparing lactuca indica and lactucin
CN105503786B (en) Split Lignanoids compounds-smartweed diffractive ring lignan glucoside E and preparation method thereof
Cheng et al. Preparative isolation of triterpenoids from Ganoderma lucidum by counter-current chromatography combined with pH-zone-refining
CN108299453B (en) Method for separating psoralen, isopsoralen and bakuchiol from fructus psoraleae
CN108186474B (en) Total flavone extract of Loranthus parasiticus of Loranthus, preparation method and application
CN110346462A (en) Leaf of Moringa UPLC fingerprint and its UPLC finger-print
CN102526150A (en) Method for preparing total elecampane sesquiterpene lactone extract
CN105330710B (en) A kind of method for extracting three kinds of iridoid glycosides chemical reference substances simultaneously from the fruit of glossy privet
CN104211690A (en) Method for separating and purifying mangiferin from aquilaria sinensis leaves
CN105198850B (en) A kind of method for preparing 3,5,6,7,8,3 ', 4 ' Heptamethoxyflavones quick from citrus chachiensis hortorum
CN108299368B (en) Flavonoid compound and preparation method and application thereof
Li et al. Microwave-assisted extraction coupled with counter-current chromatography and preparative liquid chromatography for the preparation of six furocoumarins from Angelica Pubescentis Radix
CN101323605B (en) Preparation of isobenzofuran ketone compounds
CN101982466A (en) Method for extracting isoflavonoids compound in all-grass of Twining Rhynchosia with ionic liquid
CN108484430A (en) A method of isolating and purifying pellitorine from the alpine yarrow of Yunnan
CN113845501B (en) Preparation method of senkyunolide J
CN115856132A (en) Method for screening, separating and purifying rose whitening components
CN107880084A (en) The method that middle extraction preparation high-purity acteoside is spent from platymiscium of reaching the clouds
CN102108072A (en) Method for preparing senkyunolide I from extract of Chinese angelica
CN110066306A (en) A kind of Isorhamnetin-3-O-neohespeidoside preparative liquid chromatography separation method
CN105061455B (en) It is a kind of can massively separating high purity gambogicacid and Neo-garcinolic acid simultaneously method
CN108685968A (en) A kind of purification process of Italy's oxtongue general flavone

Legal Events

Date Code Title Description
PB01 Publication
PB01 Publication
SE01 Entry into force of request for substantive examination
SE01 Entry into force of request for substantive examination
GR01 Patent grant
GR01 Patent grant