CN101745371A - Preparation method of cyclodextrin bonded stationary phase - Google Patents
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Abstract
The invention relates to preparation of cyclodextrin bonded stationary phase, in particular to a method for preparing cyclodextrin bonded stationary phase by taking click chemistry as bonding reaction process. The preparation method comprises two steps: firstly introducing triazo- or alkynyl onto the surface of silica gel by silane coupling agent to prepare triazo-silica gel derivative or alkynyl silica gel derivative, then carrying out 1,3-cycloaddition reaction on triazo- and alkynyl, namely, click chemistry, in aqueous solution at 20-80 DEG C for 24-72 hours, and binding cyclodextrin decorated with alkynyl or triazo- onto the surface of silica gel. The bonding reaction provided in the invention has high selectivity, can maintain cyclodextrin structure well, so that the preparation method is simple and broad in application range, the surface binding amount of the prepared cyclodextrin bonded stationary phase is high, is suitable to be as high performance liquid chromatography separation material, and especially suitable for separating strongly polar compound in hydrophilic liquid chromatography mode.
Description
Technical field
The present invention relates to the chromatographic stationary phase, adopt click chemistry to prepare cyclodextrin bonded fixedly phase specifically as the bonding reaction method.
Technical background
Cyclodextrin is that a class passes through 1 by glucose unit, the member cyclic oligosaccharides that 4-α glycosidic bond links up has special cave cavity configuration, can " supermolecule " take place with many molecules and interact, form in " containing complex compound ", be called as " second generation host molecule " after crown ether.Along with the fast development of chromatographic separation technology, cyclodextrin has obtained extensive use [Song Li and William C.Purdy, Chem.Rev.1992,92,1457-1470] in chromatographic isolation (comprising Capillary Electrophoresis and electrochromatography) field.With cyclodextrin or its derivative by the mode of chemical bonding immobilized to stromal surface such as silica gel as the liquid chromatogram parting material, demonstrate good separating property, can be used for chiral separation [D.W.Armstrong, et al, J Chromatogr.A, 1994,743,261-267; Ng Siu Choon, et al, J.Sep Sci.2006,29,1849-1871], position isomer separation [Yu-Qi Feng, et al, Anal.Chim.Acta, 2004,513,481-492] etc.The method of solid matrix surface bond cyclodextrin has been subjected to the extensive concern of Chinese scholars, has obtained remarkable progress.In the research in early stage, the chemical bonding method mainly is nonselective bonding reaction, promptly simultaneously all hydroxyls on the cyclodextrin or a plurality of hydroxyl are carried out derivatization, active group with the silica gel surface reacts [D.W.Armstrong then, US-Patent (1985) 4539399], the parting material surface bond amount that obtains is higher.But these bonding methods obtain is fixedly phase of crosslinked cyclodextrin, and the structure of its surface bond cyclodextrin is destroyed to a certain extent, thereby its separation selectivity also has been subjected to certain influence.In recent years, optionally bonding reaction is more and more paid attention to, it is the active group reaction of having only one or several restricted group and silica gel surface on the cyclodextrin or derivatives thereof, the cyclodextrin on the parting material surface that obtains can well keep its structure [Siu-Choon Ng, et al, Tetrahedron Lett.2002,43,677-681; Siu-Choon Ng, et al, Tetrahedron Lett.2004,45,4469-4472], its separation selectivity also is greatly improved.
In recent years, separating strong polar compound under the hydrophilic chromatographic pattern more and more receives publicity.Hydrophilic interaction liquid chromatogram pattern is similar to normal-phase chromatography, use the relative less mobile phase of polar stationary phase with polarity, but different with normal-phase chromatography be moisture (water content is generally less than 40%) [Alpert, A.J.J.Chromatogr.1990 during it flows mutually, 499,177-196; Knut Irgum, et al, J.Sep.Sci.2006,29,1784-1821].The fixing of hydrophilic Interaction Chromatography is the core of hydrophilic chromatographic mutually.At present, to the fixing comparative studies that lacks system mutually of all kinds of hydrophilic interactions, also be not widely used and generally accepted hydrophilic Interaction Chromatography fixing [Guo, Y.et al, J.Chromatogr.A, 2005,1074,71-80] mutually.Owing to contain a plurality of hydroxyls on the cyclodextrin molecular, be the functional molecular of strong hydrophilicity, be suitable as fixedly phase [Knut Irgum, et al, J.Sep.Sci.2006,29,1784-1821] of hydrophilic chromatographic.In addition, because the special space structure of cyclodextrin molecular, with the cyclodextrin molecular is the fixing separation that not only can realize simple strong polar compound mutually of hydrophilic chromatographic of functional group, and can under hydrophilic pattern, realize separation [MarkA.Strege to strong polarity enantiomter, Anal.Chem.2000,72,1736-1739].But, these optionally bonding cyclodextrin fixedly the preparation process of phase is complicated, reaction condition is also relatively harsher, operation easier is big.Therefore, quick, the easy high selectivity bonding method of development is significant.
" click chemistry " (click chemistry) is synthetic chemistry notion [the K.Barry Sharpless that the K.B.Sharpless professor (calendar year 2001 Nobel chemistry Prize winner) of U.S. Scripps research institute (ScrippsResearch Institute) proposed in calendar year 2001, et al, Angew.Chem.Int.Ed.2001,40,2004-2021], its core content is: with high selectivity, high conversion, mild condition, chemical reaction simple to operate is realized the coupling of functional group, reaches the purpose of efficient production functional molecular and functional material.Current, the most widely used " click chemistry " (click chemistry) reaction is Huisgen 1,3-diploar cycloaddition reaction, and its reaction equation is as follows:
" click chemistry " (click chemistry) has been applied in the research of preparative high-performance liquid chromatographic parting material [Aiwen Lei and Xinmiao Liang, et al, Chem.Comm.2006,4512-4514], and demonstrates potential advantage.Also there be not to use " click chemistry " (clickchemistry) to prepare the report of cyclodextrin bonded fixedly phase at present.
Summary of the invention
The object of the present invention is to provide a kind of preparation method of brand-new, easy and simple to handle, cyclodextrin bonded fixedly phase that reaction condition is gentle, to improve the bonding selectivity and the bonded amount of cyclodextrin, improve the fixedly separating property of phase of cyclodextrin, particularly be suitable under the hydrophilic chromatographic pattern, separating strong polar compound.
For achieving the above object, the technical solution used in the present invention is:
A kind of employing click chemistry prepares fixedly phase of bonding type cyclodextrin as reaction method, 1 of the alkynyl of modifying on the azido (or alkynyl) that promptly utilizes the silica gel surface and the cyclodextrin molecular (or azido), the 3-cycloaddition reaction is bonded to the silica gel surface with single substituted cyclodextrin high selectivity.At first prepare azido silica derivative thing or alkynyl silica derivative thing at silica gel surface introducing azido or alkynyl by silane coupler, then by 1 of azido and alkynyl, the 3-cycloaddition reaction, be clickchemistry, in the aqueous solution, reacted under 20～80 ℃ the condition 24～72 hours, with having modified the cyclodextrin bonded of alkynyl or azido, promptly get cyclodextrin bonded fixedly phase through post processings such as washing, dryings to the silica gel surface.
The gained parting material is through infrared spectrum and structure is carried out in elementary analysis and bonded amount characterizes, filling 4.6*150mm stainless steel chromatogram post with the homogenate method, is that probe has been estimated the cyclodextrin bonded fixing separating property mutually of gained with a series of strong polar compounds such as base, nucleosides and sugar.Bonding reaction selectivity height provided by the present invention, energy is the structure of retaining ring dextrin well, the preparation method is easy, the scope of application is wider, prepared cyclodextrin bonded fixedly phase surface bonding rate height, be suitable as the high performance liquid chromatography parting material, be specially adapted under hydrophilic liquid chromatogram pattern, separate strong polar compound.
Concrete preparation process is as follows:
1). the preparation of azido silica derivative thing and alkynyl silica derivative thing
A. the preparation of azido silica gel: in organic solvent, add silane coupler, sodium azide and catalyst, the mol ratio of silane coupler, sodium azide and catalyst is 1: 1.2-3: 0.01-0.1, under 60～130 ℃ of conditions, reacted 8～24 hours, add then through 6～18 hours micro-spherical silica gel of 160 ℃ of heating, the required silane coupler of every gram silica gel is 2-8mmol; Under 60～130 ℃ of conditions, continue reaction 12～24 hours, filter, use carrene successively with sand core funnel, ethanol, water, the acetone washing, gained solid in vacuum drying chamber under 40～80 ℃ of conditions dry 6～12 hours promptly gets azido silica derivative thing.
The used silane coupler of step a has following structure:
Wherein, X is-OCH3 or-OCH2CH3, A is Cl
-Or Br
-
Used organic solvent is acetonitrile, toluene or N, dinethylformamide, and the amount of the required organic solvent of every gram silica gel is 5-20mL; Catalyst is sodium iodide or KI; Spherical silica gel is the uniform full multi-hole blangel bead in particle diameter and aperture, and particle diameter is 5～40 μ m, and the aperture is 60～300A.
B. the preparation of alkynyl silica gel: in organic solvent, add silane coupler and propargylamine, the mol ratio of silane coupler propargylamine is 1: 1.2-3, under 60～100 ℃ of conditions, reacted 8～24 hours, add then through 6～18 hours micro-spherical silica gel of 160 ℃ of heating, the required silane coupler of every gram silica gel is 2-8mmol; Under 60～100 ℃ of conditions, continue reaction 12～24 hours, filter, use carrene successively with sand core funnel, ethanol, water, the acetone washing, gained solid in vacuum drying chamber under 40～80 ℃ of conditions dry 6～12 hours promptly gets alkynyl silica derivative thing.
The used silane coupler of step b has following structure:
Wherein, X is-OCH
3Or-OCH
2CH
3
Used organic solvent is acetonitrile, toluene or N, dinethylformamide, and the amount of the required organic solvent of every gram silica gel is 5-20mL; Spherical silica gel is the uniform full multi-hole blangel bead in particle diameter and aperture, and particle diameter is 5～40 μ m, and the aperture is 60～300A.
2). contain single substituted cyclodextrin and the preparation that contains single substituted cyclodextrin of alkynyl of azido
A. the preparation of azido cyclodextrin:
In DMF, add list-6-to Methyl benzenesulfonyl base-cyclodextrin, sodium azide, catalyst.List-6-is to Methyl benzenesulfonyl base-cyclodextrin; the mol ratio of sodium azide and catalyst is 1: 3～10: 0.2～1; in 50～100 ℃ of reactions 12～36 hours; then solvent DMF is concentrated into 20%～80%; reaction system after concentrating poured in a large amount of acetone separate out solid, the water recrystallization promptly gets list-6-azido-cyclodextrin 1～3 time.Wherein, catalyst is sodium iodide or KI.
The structure of step a gained azido cyclodextrin can be expressed as:
B. the preparation of alkynyl cyclodextrin: with list-6-to Methyl benzenesulfonyl base-cyclodextrin; propargylamine mixes; every gram list-6-is 1～10ml to the required propargylamine of Methyl benzenesulfonyl base-cyclodextrin; in 50～85 ℃ of reactions 12～36 hours; then reaction system is poured into and separated out solid in the acetonitrile, promptly get list-6-deoxidation-N-propargyl amine-cyclodextrin for 1～3 time with recrystallizing methanol.
The structure of step b gained azido cyclodextrin can be expressed as:
3) .click chemistry reaction bonding cyclodextrin
It is in 1/10～10/1 the water/methyl alcohol or water/alcohol mixed solvent that the azido silica derivative thing (or alkynyl silica derivative thing) of above-mentioned preparation is added volume ratio, the required mixed solvent amount of every gram silica derivative thing is 20-50mL, add list-6-deoxidation-N-propargyl amine-cyclodextrin (or list-6-deoxidation-azido-cyclodextrin) again, catalyst, the molar dose of cyclodextrin is 1～10 times of molar dose of azido on the silica gel (or alkynyl), catalyst is copper sulphate and sodium ascorbate, and used molar dose is respectively 1～10% and 2～40% of the alcoholic extract hydroxyl group compound molar dose that is modified with terminal alkynyl; Under 10～80 ℃ of conditions, reacted 24～72 hours, filter, use ethanol successively with sand core funnel, water, the weight concentration 2-20%EDTA aqueous solution, water, acetone washing, gained solid in vacuum drying chamber under 40～80 ℃ of conditions dry 6～12 hours, the i.e. fixing phase of bonding type cyclodextrin.
This bonding reaction can be expressed as:
Or:
The present invention has following advantage:
1. applied range.The present invention uses click chemistry that the cyclodextrin high selectivity is bonded to the silica gel surface, the chromatographic isolation material that obtains has very high post and imitates and separation selectivity, it is the good hydrophilic chromatographic parting material of a class separating property, can be used for all kinds of strong polar compounds of compartment analysis, also can be used for the separation preparation of various strong polar compounds.
2. bonding reaction selectivity height, the surface bond amount is big.Because reaction selectivity and the reaction conversion ratio of Click chemistry are very high, in surface reaction, show bigger advantage, can avoid the generation of side reaction, improve surface reaction efficient simultaneously, so it is a kind of preparation method of high selectivity mutually that the present invention prepares bonding type cyclodextrin fixing, can be good at keeping silica gel to show the 26S Proteasome Structure and Function of cyclodextrin, its surface bond amount is higher simultaneously.
3. preparation process is simple, and the bonding reaction mild condition helps realizing commercialization.Preparation process provided by the invention is fixing mutually simple than the preparation selectivity bonding cyclodextrin of bibliographical information, and step is less, and intermediate prepares easily.Simultaneously, final step bonding reaction (also being a step of most critical) is the clickchemistry reaction, and the reaction condition gentleness is carried out in the aqueous solution, and is amplified to a large amount of preparations (feather weight) very easily.
Description of drawings
Fig. 1 is the cyclodextrin bonded fixing chromatogram that is used to separate base and nucleosides mutually of the embodiment of the invention 1 preparation;
Fig. 2 is the cyclodextrin bonded fixing chromatogram that is used to separate sugar mutually of the embodiment of the invention 1 preparation;
Fig. 3 is the cyclodextrin bonded fixing chromatogram that is used to separate base and nucleosides mutually of the embodiment of the invention 2 preparations;
Fig. 4 is the cyclodextrin bonded fixing chromatogram that is used to separate sugar mutually of the embodiment of the invention 2 preparations.
The specific embodiment
Fixedly phase of the present invention can be used under the hydrophilic Interaction Chromatography pattern separation to polar compound effectively.Below in conjunction with example and accompanying drawing, the present invention will be further described.Example only limits to illustrate the present invention, but not limitation of the invention.
In the 1000ml there-necked flask, add 500ml dry DMF, 45mmol (about 10ml) 3-chloropropyl triethoxysilane, 60mmol (about 4.0g) sodium azide, add 3.0mmol sodium iodide (about 0.5g) then as catalyst, 80 ℃ of following reaction 24h, adding particle diameter then is the spherical silica gel particle 20g of 5 μ m, reacts 24h again under 80 ℃, use carrene then successively, ethanol, water, each washed twice of acetone, each 200ml, 60 ℃ of vacuum drying promptly got (3-propyl group) azido silica gel in 12 hours.
The there-necked flask of 50ml adds the 15ml propargylamine under nitrogen protection, add 6g list-6-then to the Methyl benzenesulfonyl group-beta-cyclodextrin, adds hot reflux 12 hours.Be cooled to room temperature under the nitrogen protection, reaction system poured into separated out solid in the acetonitrile.Solid promptly gets product list-6-deoxidation-N-propargyl amido-beta-schardinger dextrin-with recrystallizing methanol.
(3-propyl group) azido silica gel adds 60ml water after getting the 2.5g drying in reactor, 60ml ethanol, 4g list-6-deoxidation-N-propargyl amine-beta-schardinger dextrin-, add 0.075g copper sulphate and 0.18g sodium ascorbate then as catalyst, react 48h under the room temperature, use ethanol, water successively, 10% the EDTA aqueous solution, water, each washed twice of acetone, each 100ml, vacuum drying promptly got product in 12 hours under the room temperature, and structure is:
In the 1000ml there-necked flask, add 500ml dry toluene, 120mmol (about 30ml) 3-isocyanate group triethoxysilane, 160mmol propargylamine (about 9g), 80 ℃ are reacted 12h down, adding particle diameter then is the spherical silica gel particle 40g of 5 μ m, reacts 48h again under 80 ℃, uses carrene then successively, ethanol, water, each washed twice of acetone, each 200ml, 60 ℃ of vacuum drying 12 hours promptly get alkynyl silica derivative thing.
The there-necked flask of 50ml adds 15mlDMF under nitrogen protection, add 10g list-6-then to the Methyl benzenesulfonyl group-beta-cyclodextrin, is heated to 65 ℃ of reactions 24 hours.Solvent DMF is concentrated to 5ml, pours into and separate out solid in the acetone.Solid water recrystallization promptly gets product list-6-deoxidation-β-azido cyclodextrin.
Alkynyl silica derivative thing adds 60ml water after getting the 2.5g drying in reactor, 60ml ethanol, 4g list-6-deoxidation-azido-cyclodextrin, add 0.05g copper sulphate and 0.15g sodium ascorbate then as catalyst, react 48h under the room temperature, use ethanol, water successively, 10% the EDTA aqueous solution, water, each washed twice of acetone, each 100ml, vacuum drying promptly got product in 12 hours under the room temperature, and structure is:
Difference from Example 1 is, adopt list-6-to Methyl benzenesulfonyl base-alpha-cyclodextrin replacement list-6-to the Methyl benzenesulfonyl group-beta-cyclodextrin, can get another kind of cyclodextrin bonded fixedly phase by the synthesis step of embodiment 1, structure for its structure is:
Difference from Example 2 is, adopt list-6-to Methyl benzenesulfonyl base-alpha-cyclodextrin replacement list-6-to the Methyl benzenesulfonyl group-beta-cyclodextrin, can get another kind of cyclodextrin bonded fixedly phase by the synthesis step of embodiment 2, structure for its structure is:
Use embodiment 1 prepared bonding type cyclodextrin parting material, load 4.6*150mm stainless steel chromatogram post, under the hydrophilic Interaction Chromatography pattern, separate base and nucleosides mixture, the mixture of monose and derivative thereof and disaccharides with the homogenate method.As mobile phase, under the condition of gradient elution, two class mixtures have obtained good separation (as depicted in figs. 1 and 2) with acetonitrile/water.
The used chromatographic condition of Fig. 1 is: mobile phase A is the 10mM ammonium acetate aqueous solution, and Mobile phase B is an acetonitrile, flow velocity: 1ml/min; Gradient condition is: 0-5min, 5%A; 5-7min, 5%-18%A; 7-15min, 18%; Column temperature: 30 ℃; Detect wavelength: 260nm.1 is thymidine among the figure, and 2 is uracil, and 3 is uridine, and 4 is adenosine, and 5 is adenine, and 6 is cytimidine, and 7 is cytidine, and 8 is guanosine.
The used chromatographic condition of Fig. 2 is: mobile phase A is the 10mM ammonium acetate aqueous solution, and Mobile phase B is an acetonitrile, flow velocity: 1ml/min; Gradient condition is: 0-20min, 10%-25%A; 20-25min, 25%-30%A; Column temperature: 30 ℃; The evaporative light-scattering device detects: 50 ℃ of drift tube temperatures; Sweep gas pressure: 20psi.1 is mucic acid among the figure, and 2 is ribose, and 3 is wood sugar, and 4 is fructose, and 5 is mannose, and 6 is glucose, and 7 is sorbierite, and 8 is sucrose, and 9 is cellobiose, and 10 is maltose, and 11 is lactose.
Use embodiment 2 prepared bonding type cyclodextrin parting materials, load 4.6*150mm stainless steel chromatogram post, under the hydrophilic Interaction Chromatography pattern, separate base and nucleosides mixture, monose and mixture of disaccharides with the homogenate method.As mobile phase, under the condition of gradient elution, two class mixtures have obtained good separation (as shown in Figure 3 and Figure 4) with acetonitrile/water.
The used chromatographic condition of Fig. 3 is: mobile phase A is the 10mM ammonium acetate aqueous solution, and Mobile phase B is an acetonitrile, flow velocity: 1ml/min; Gradient condition is: 0-5min, 5%A; 5-7min, 5%-18%A; 7-15min, 18%; Column temperature: 30 ℃; Detect wavelength: 260nm.1 is thymidine among the figure, and 2 is uracil, and 3 is uridine, and 4 is adenosine, and 5 is adenine, and 6 is cytimidine, and 7 is cytidine, and 8 is guanosine.
The used chromatographic condition of Fig. 4 is: mobile phase A is the 10mM ammonium acetate aqueous solution, and Mobile phase B is an acetonitrile, flow velocity: 1ml/min; Gradient condition is: 0-10min, 10%A; 10-25min, 10%-30%A; Column temperature: 30 ℃; The evaporative light-scattering device detects: 50 ℃ of drift tube temperatures; Sweep gas pressure: 20psi.1 is mucic acid among the figure, and 2 is ribose, and 3 is wood sugar, and 4 is fructose, and 5 is mannose, and 6 is glucose, and 7 is sorbierite, and 8 is sucrose, and 9 is cellobiose, and 10 is maltose, and 11 is lactose.
Claims (9)
1. the preparation method of a cyclodextrin bonded fixedly phase is characterized in that, adopts click chemistry reaction to be prepared as follows:
1). the preparation of azido silica derivative thing and alkynyl silica derivative thing
A. the preparation of azido silica derivative thing: in organic solvent, add silane coupler, sodium azide and catalyst, the mol ratio of silane coupler, sodium azide and catalyst is 1: 1.2-3: 0.01-0.1, under 60～130 ℃ of conditions, reacted 8～24 hours, add then through 6～18 hours micro-spherical silica gel of 160 ℃ of heating, the required silane coupler of every gram silica gel is 2-8mmol; Under 60～130 ℃ of conditions, continue reaction 12～24 hours, filter, use carrene successively with sand core funnel, ethanol, water, the acetone washing, gained solid in vacuum drying chamber under 40～80 ℃ of conditions dry 6～12 hours promptly gets azido silica derivative thing;
B. the preparation of alkynyl silica derivative thing: in organic solvent, add silane coupler and propargylamine, the mol ratio of silane coupler propargylamine is 1: 1.2-3, under 60～100 ℃ of conditions, reacted 8～24 hours, add then through 6～18 hours micro-spherical silica gel of 160 ℃ of heating, the required silane coupler of every gram silica gel is 2-8mmol; Under 60～100 ℃ of conditions, continue reaction 12～24 hours, filter, use carrene successively with sand core funnel, ethanol, water, the acetone washing, gained solid in vacuum drying chamber under 40～80 ℃ of conditions dry 6～12 hours promptly gets alkynyl silica derivative thing;
2). contain single substituted cyclodextrin and the preparation that contains single substituted cyclodextrin of alkynyl of azido
A. the preparation of azido cyclodextrin:
In DMF, add list-6-to Methyl benzenesulfonyl base-cyclodextrin, sodium azide, catalyst; List-6-is to Methyl benzenesulfonyl base-cyclodextrin, sodium azide, the mol ratio of catalyst is 1: 3～10: 0.2～1, in 50～100 ℃ of reactions 12～36 hours, then solvent DMF is concentrated into 20%～80%, reaction system after concentrating poured in a large amount of acetone separate out solid, the water recrystallization promptly gets list-6-azido-cyclodextrin 1～3 time;
B. the preparation of alkynyl cyclodextrin: with list-6-to Methyl benzenesulfonyl base-cyclodextrin, propargylamine mixes, every gram list-6-is 1～10ml to the required propargylamine of Methyl benzenesulfonyl base-cyclodextrin, in 50～85 ℃ of reactions 12～36 hours, then reaction system is poured into and separated out solid in the acetonitrile, promptly get list-6-deoxidation-N-propargyl amido-cyclodextrin for 1～3 time with recrystallizing methanol;
3) .click chemistry reaction bonding cyclodextrin
It is in 1/10～10/1 the water/methyl alcohol or water/alcohol mixed solvent that the azido silica derivative thing of above-mentioned preparation or alkynyl silica derivative thing are added volume ratio, the required mixed solvent amount of every gram silica derivative thing is 20-50mL, adds list-6-deoxidation-N-propargyl amine-cyclodextrin or list-6-deoxidation-azido-cyclodextrin, catalyst again; Catalyst is copper sulphate and sodium ascorbate, and used molar dose is respectively 1～10% and 2～40% of single substituted cyclodextrin molar dose; Under 10～80 ℃ of conditions, reacted 24～72 hours, filter, use ethanol successively with sand core funnel, water, the weight concentration 2-20%EDTA aqueous solution, water, acetone washing, gained solid in vacuum drying chamber under 40～80 ℃ of conditions dry 6～12 hours, the i.e. fixing phase of bonding type cyclodextrin.
2. according to the described preparation method of claim 1, it is characterized in that: the used organic solvent of step 1) is an acetonitrile, toluene or N, dinethylformamide; The amount of the required organic solvent of every gram silica gel is 5-30mL.
3. according to the described preparation method of claim 1, it is characterized in that: the used silane coupler of a has following structure in the step 1):
Wherein, X is-OCH
3Or-OCH
2CH
3, A is Cl
-Or Br
-
4. according to the described preparation method of claim 1, it is characterized in that: the used catalyst of a is sodium iodide or KI in the step 1).
5. according to the described preparation method of claim 1, it is characterized in that: the used silane coupler of b has following structure in the step 1):
Wherein, X is-OCH
3Or-OCH
2CH
3
6. according to the described preparation method of claim 1, it is characterized in that: the used spherical silica gel of step 1) is the full multi-hole blangel bead, and particle diameter is 5～40 μ m, and the aperture is
7. according to the described preparation method of claim 1, it is characterized in that: step 2) in the used catalyst of a be sodium iodide or KI.
8. according to the described preparation method of claim 1, it is characterized in that: step 2) used cyclodextrin is alpha-cyclodextrin, beta-schardinger dextrin-, or gamma-cyclodextrin.
9. according to the described preparation method of claim 1, it is characterized in that: list-6-deoxidation-N-propargyl amine-cyclodextrin that step 3) is used or list-6-azido-cyclodextrin mol ratio dosage are 2～5 times of mol ratio dosage of azido or alkynyl on the silica gel.
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