CN1670050A - Crosslinked polystyrene gel and use thereof - Google Patents
Crosslinked polystyrene gel and use thereof Download PDFInfo
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- CN1670050A CN1670050A CN 200510016254 CN200510016254A CN1670050A CN 1670050 A CN1670050 A CN 1670050A CN 200510016254 CN200510016254 CN 200510016254 CN 200510016254 A CN200510016254 A CN 200510016254A CN 1670050 A CN1670050 A CN 1670050A
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Abstract
The invention relates to a new crosslinked polystyrene gel and its application. In the invention, combining the dimethacrylic acid diglycol ester or dimethacrylic acid diglycol ester as cross linking agents with phenylethene or phenylethene substitution copolymer gel to get the product by free radical copolymerization. The gel with functional group can be used as a solid phase carrier of solid phase method of polypeptide synthesis, solid phase organic synthesis or combination chemical as well as a solid phase scavenging agent.
Description
[technical field]
The present invention relates to solid-phase synthesized carrier and synthetic method thereof, specifically novel crosslinked polystyrene gel of a class and purposes.
[background technology]
Merrifield had invented solid-phase peptide synthesis (R.B.Merrifield, J.Am.Chem.Soc., 1963,85,2149) in 1963, after this solid phase synthesis process be widely used in that solid-phase polypeptide is synthetic, in solid phase organic synthesis and the combinatorial chemistry.The advantage of solid phase synthesis comprises: (1) can make with excessive reaction reagent and react completely.(2) product in per step all is fixed on the solid phase carrier that is insoluble to any solvent, and therefore required product can be realized by simple filtering with separating of small molecules reagent such as other excess reagent, catalyzer.(3) in all operations step before cracking, solid phase carrier is in the same container, without any mechanical loss all the time.(4) can make each step reaction be tending towards improving productive rate fully with big excessive reaction reagent and catalyzer, the purifying of last product is more prone to.(5) realize automatization easily.The now existing very high automatic solid phase synthetic instrument of level of automation.
But also there is certain shortcoming in the solid-phase polypeptide synthesis method, as exists product purity not as the synthetic high shortcoming of liquid phase method.If as in solid-phase polypeptide is synthetic amino acid of every connection being called one " circulation ", each " circulation " all will pass through several steps: remove condensation reaction, washing and the filtration of protecting group, neutralization, formation peptide bond.If synthesize and contain 100 amino acid whose peptides, need a hundreds of step, even each step yield all is 99.5%, after hundred steps of reaction, yield only is 36.6%.Except because not thorough and residual reaction reagent and the byproduct of reaction of washing and filtering, and outside other exogenous pollution, also accumulated the shortcoming peptide and the hollow peptide of a large amount of similar, their character and purpose peptide are very approaching, and this has brought very big difficulty to separation.When synthesizing the polypeptide of some aminoacid sequence that contains more difficult condensation, the condensation rate is often lower, and problem is more serious, and this not only reduces polypeptide synthetic total recovery greatly, more seriously, obtains target peptide by being difficult in the final product separate when the condensation rate is low.Therefore, the level of response of each step reaction of raising solid phase synthesis is very important.
In solid phase synthesis, carrier plays a part crucial.The initial carrier that uses of Merrifield, promptly the polystyrene gel with divinylbenzene crosslink is still most popular carrier so far.The polystyrene support of divinylbenzene crosslink have physical strength good, swelling behavior is preferably arranged in the used solvent of many solid phase synthesis and easily introduces the advantage of various functional groups.Its shortcoming is, in some solid phase synthesis, and the reaction kinetics poor-performing.This mainly is that this makes that the flexibility of resin integral body is poorer because its linking agent divinylbenzene itself has rigid structure, and the strong lipotropy body of whole system has reduced the solvation degree of resin in polar solvent; The secondth, the molecular ratio of divinylbenzene is less, and the cross-bridge of formation is shorter, makes that the cross-linked network extensibility is relatively poor, and near the solvation degree of the polymer chain cross-bridge is inevitable lower, the reaction kinetics poor performance of the reaction of carrying out in these positions.Particularly using the bigger reactant of molecular weight; that uses in synthetic as solid-phase polypeptide protects alpha-amino amino acid with Boc or Fmoc; even also have the amino acid of Side chain protective group; the amino acid whose molecular weight of such protection is very big; they have very big steric effect; near cross-bridge reaction site makes its reaction be difficult to the level of response that reaches high near certain difficulty is arranged.
By the reaction kinetics performance of improving carrier is to improve each one of effective ways of each level of response that goes on foot that circulate.For the polystyrene gel that overcomes divinylbenzene crosslink shortcoming as the reaction kinetics difference of carrier, keep its high mechanical strength simultaneously and the good swelling behavior and the easy advantage of functionalizing in the used solvent of many solid phase synthesis, synthesized with the polystyrene support (K.Kamahori of double styrene-4-methyl-PEG ether as the low cross-linking of linking agent, K.Ito, S.Itsuno, J.Org.Chem.1996,61,8321; J.Buchardt, M.Meldal, Tetra.Lett.1998,39,8695).The shortcoming of this carrier is that the benzylic ether structure of its linking agent is restricted its use to strong acid and organometallics instability.Janda etc. have synthesized the linking agent (P.H.Toy of double styrene-4-butanediol ethere as the low cross-linking polystyrene support, K.D.Janda, Tetra.Lett.1999,40,6329), the shortcoming of this linking agent is, synthesis step is many, synthetic cost is very high, and institute's synthetic carrier costs an arm and a leg, so its large-scale promotion application in solid phase synthesis is restricted.Usefulness methacrylate butanediol esters such as Krishnakumar have synthesized crosslinked polystyrene carrier (I.M.Krishnakumar, B.Mathew, Europ.Polym.J.2002,38,1745) as linking agent.Distance between the two keys of two of this linking agents is still less, and alkane chain is in rolled state in polar organic solvent, with the reaction kinetics performance of its synthetic crosslinked polystyrene carrier ideal not really still.
[summary of the invention]
Purpose of the present invention adopts methacrylate binaryglycol ester or methacrylate triglycol ester as linking agent, synthesizing cross-linked polystyrene gel or crosslinked substituted phenylethylene gel just at above-mentioned the deficiencies in the prior art; Crosslinked polystyrene gel is carried out functionalizing obtain polystyrene gel with functional group; And the polystyrene gel of the band functional group that obtains with the crosslinked polystyrene gel functionalizing and crosslinked substituted phenylethylene gel are as the carrier of solid phase synthesis.
The present invention is achieved through the following technical solutions;
A kind of crosslinked polystyrene gel is characterized in that it is that methacrylate binaryglycol ester or methacrylate triglycol ester are as linking agent and cinnamic copolymer gel.
A kind of functionalizing derivative of crosslinked polystyrene gel, it is characterized in that the functional group of functionalizing includes but not limited to the functional group shown in the following structural formula (R) to carrying out functionalizing by methacrylate binaryglycol ester or methacrylate triglycol ester as linking agent and cinnamic copolymer gel:
-R＝-CH
2Cl，-CH
2NH
2，-CH
2OH，
The purposes of the functionalizing derivative of crosslinked polystyrene gel is characterized in that the solid phase carrier or the solids removal agent of, solid phase organic synthesis synthetic as solid-phase polypeptide and combinatorial chemistry.
A kind of crosslinked substituted phenylethylene gel is characterized in that it is methacrylate binaryglycol ester or the methacrylate triglycol ester terpolymer (can have or not exist the vinylbenzene as the 3rd comonomer in the copolymerization) as linking agent and vinylbenzene and substituted phenylethylene.
The purposes of crosslinked substituted phenylethylene gel is characterized in that the solid phase carrier or the solids removal agent of, solid phase organic synthesis synthetic as solid-phase polypeptide and combinatorial chemistry.
The present invention is with methacrylate binaryglycol ester or the crosslinked polystyrene gel of methacrylate triglycol ester linking agent, has chemical stability height (comparing with double styrene-4-methyl-PEG ether), cross-bridge is long and kindliness good (comparing with the methacrylate butanediol ester with double styrene-4-butanediol ethere) thereby reaction power is learnt well, cheap advantages such as (comparing with double styrene-4-butanediol ethere).With the carrier of the crosslinked polystyrene gel of methacrylate binaryglycol ester or methacrylate triglycol ester as solid phase synthesis, the high mechanical strength of the polystyrene support that has kept divinylbenzene crosslink, in the used solvent of many solid phase synthesis good swelling behavior and easily in the advantage of functionalizing, overcome the shortcoming of reaction kinetics poor performance of the polystyrene gel of divinylbenzene crosslink, and had good, the easy synthetic and low advantage of synthetic cost of chemical stability.Promptly concentrated advantage, and overcome the shortcoming that they exist separately with several linking agent synthetic polystyrene solid-phase synthesized carriers of divinylbenzene or above-mentioned bibliographical information by two kinds of used linking agent synthetic polystyrene solid-phase synthesized carriers of the present invention.It is a kind of ideal solid-phase synthesized carrier.
[embodiment]
Below with reference to embodiment the present invention is described in detail.
The present invention methacrylate binaryglycol ester (structural formula 1) or methacrylate triglycol ester (structural formula 2)
As linking agent, synthesizing cross-linked polystyrene gel or crosslinked substituted phenylethylene gel; Crosslinked polystyrene gel is carried out the polystyrene gel that functionalizing obtains having functional group; And the polystyrene gel that has functional group that obtains with the crosslinked polystyrene gel functional group and crosslinked substituted phenylethylene gel are as the carrier of solid phase synthesis.Wherein:
First kind of mode is to carry out radical copolymerization with methacrylate binaryglycol ester or methacrylate triglycol ester and vinylbenzene, obtain crosslinked polystyrene gel, form two kinds of comonomers of gel: methacrylate binaryglycol ester or methacrylate triglycol ester and cinnamic weight ratio scope are: 0.5-10: 90-99.5.
By the functionalizing of copolymer gel, can derive all polystyrene gels with divinylbenzene crosslink of having reported is solid-phase synthesized carrier matrix, functionalizing then.Functional group includes but not limited to any in the following monomer: benzyl chloride, benzyl ammonia, benzyl alcohol, 4-benzyloxy phenylcarbinol base, diphenylmethyl amido, 4-methyldiphenyl base methylamino, 2-chlorine trityl group chlorine, Rink acid or Rink amide group etc.When carrying out these functionalizing reactions, its speed of response and level of response all are higher than the corresponding reaction with the polystyrene gel of divinylbenzene crosslink.
The second way directly obtains having the solid-phase synthesized carrier of functional group for carrying out radical copolymerization (can comprise the 3rd comonomer vinylbenzene) with methacrylate binaryglycol ester or methacrylate triglycol ester with the vinylbenzene (substituted phenylethylene) of being with functional group.Linking agent methacrylate binaryglycol ester or methacrylate triglycol ester, substituted phenylethylene and cinnamic weight ratio scope are: 0.5-10: 1-99.5: 0-98.5.In the cinnamic copolymerization of methacrylate binaryglycol ester or methacrylate triglycol ester and band functional group, as the 3rd comonomer, regulate required degree of crosslinking of institute's synthetic gel and functional group charge capacity with the vinylbenzene of the no functional group of suitable proportion.The vinylbenzene of band functional group includes but not limited to any in the following monomer: 1-chloro-4-methyl-benzene, brooethyl vinylbenzene, methylol vinylbenzene, hydroxymethyl phenoxy vinyl toluene, acetoxy-styrene, vinyl benzoic acid.The functional group carrier that obtains with this dual mode all has in solid phase synthesis than the better reaction kinetics performance of the respective carrier of divinylbenzene crosslink.
The initiator of above-mentioned radical polymerization can be any radical initiator that causes styrene polymerization such as azo-initiator, peroxidation class initiator, and the most frequently used initiator is benzoyl peroxide or Diisopropyl azodicarboxylate; Polymerization process can be mass polymerization, solution polymerization or suspension polymerization; The form of last cross-linked polymer can be pearl, granular or film like; Can directly obtain bead polymer with suspension polymerization; Sheet or film like polymkeric substance then can obtain by body or solution polymerization straight forming if desired; Granular polymer can be by pulverizing gained after mass polymerization or the solution polymerization.
The polystyrene of institute of the present invention synthetic crosslinked polystyrene or the polymer gel that has a functional group and divinylbenzene crosslink or the polymer gel that has a functional group have identical reactivity, and just its reaction kinetics performance is better.
Embodiment 1:
The preparation of the polystyrene gel that the methacrylate binaryglycol ester is crosslinked:
In the 1000ml there-necked flask, add the aqueous solution that 450ml contains 0.5% polyvinyl alcohol, the organic phase solution that adding is made up of 39.2g vinylbenzene, 0.8g methacrylate binaryglycol ester and 0.2g benzoyl peroxide, adjust stirring velocity, the organic phase liquid pearl diameter that makes aqueous phase is warmed up to 80 ℃ and kept 8 hours under this stirring velocity between the 100-200 order.With the gained bead polymer with hot wash for several times, dry, 100-200 purpose gel is got in screening.
Embodiment 2:
The preparation of the polystyrene gel that the methacrylate triglycol ester is crosslinked:
In the 1000ml there-necked flask, add the aqueous solution that 450ml contains 0.5% polyvinyl alcohol, the organic phase solution that adding is made up of 38g vinylbenzene, 2g methacrylate triglycol ester and 0.2g benzoyl peroxide, adjust stirring velocity, the organic phase liquid pearl diameter that makes aqueous phase is warmed up to 80 ℃ and kept 8 hours under this stirring velocity between the 200-400 order.With the gained bead polymer with hot wash for several times, dry, 200-400 purpose gel is got in screening.
Embodiment 3:
The chloromethylation of the polystyrene gel that the methacrylate binaryglycol ester is crosslinked:
The crosslinked polystyrene gel of 10g 100-200 order methacrylate binaryglycol ester (is contained methacrylate triglycol ester 3%, weight percent) joined in the 100ml methylene dichloride swelling 1 hour, be cooled to-4 ℃, add the 10ml chloromethyl ether, under-4 ℃, drip the 1.2ml anhydrous stannic chloride, reacted 50 minutes down at 0--4 ℃.Use tetrahydrofuran (THF): 0.5mol/L HCl (volume ratio is 1: 1) thorough washing gained resin, use tetrahydrofuran (THF) and distilled water thorough washing resin then, until using AgNO
3Detect no chlorion, vacuum-drying gained resin.The cl content that records the gained resin is 1.32mmol/g.
Embodiment 4:
The chloromethylation of the polystyrene gel that the methacrylate triglycol ester is crosslinked:
The crosslinked polystyrene gel of 10g 200-400 order methacrylate triglycol ester (is contained methacrylate triglycol ester 5%, weight percent) joined in the 100ml methylene dichloride swelling 1 hour, be cooled to-4 ℃, add the 10ml chloromethyl ether, under-4 ℃, drip the 1.2ml anhydrous stannic chloride, reacted 50 minutes down at 0--4 ℃.Use tetrahydrofuran (THF): 0.5mol/L HCl (volume ratio is 1: 1) thorough washing gained resin, use tetrahydrofuran (THF) and distilled water thorough washing resin then, until using AgNO
3Detect no chlorion, vacuum-drying gained resin.The cl content that records resin is 0.96mmol/g.
Embodiment 5:
Contain the preparation of 4-benzyloxy phenylcarbinol base gel:
5g is joined in the 100ml there-necked flask by gel and the 25ml N,N-DIMETHYLACETAMIDE that embodiment 3 obtains, stirred 1 hour.Then 1.5g is dissolved with the 15ml N,N-DIMETHYLACETAMIDE hydroxy-benzyl alcohol, it is transferred in the above-mentioned there-necked flask, stirring also adds the 0.5g sodium methylate in the there-necked flask under the nitrogen gas stream protection.Make reaction system be heated to 50 ℃ and kept 8 hours with water-bath.Filter, resin washes with water to neutrality, then washes dioxane washing 3 times, absolute ethanol washing 3 times, vacuum-drying with water 3 times.The cl content that records the gained resin is 0, and hydroxy radical content is 1.18mmol/g.
Embodiment 6:
Contain the preparation of 2-chlorine trityl group chlorine gel:
(1) preparation of 2-chloro benzophenone resin
With the anhydrous AlCl of 5.3g
3Join successively in the reaction flask of 50ml with the 30ml methylene dichloride, 20-30 ℃ was stirred 30-40 minute down, dripped the 4.6g o-chlorobenzoyl chloride, and the control temperature of reaction system is not higher than 30 ℃, after dropping is finished, stirred 1 hour at 20-30 ℃, to AlCl
3All dissolving is prepared into mixed solution.
Polystyrene gel (containing methacrylate triglycol ester 3%, weight percent) and 80ml methylene dichloride that 10g200-400 order methacrylate triglycol ester is crosslinked join in the 200ml reaction flask, and 20-30 ℃ was stirred 2 hours.The mixed solution of above-mentioned preparation is added dropwise in the system, and the control temperature of reaction system is not higher than 30 ℃, dropwises, and makes the reaction system backflow reduce to room temperature after 4 hours.The dioxane that reaction mixture is under agitation added the 315ml that has prepared: water: in the mixing solutions of hydrochloric acid=5: 1: 1, stirred 1 hour down at 20-30 ℃.Suction filtration then, washs by following order and pass: (dioxane: 90ml * 1 water=5: 1), acetone 60ml * 2, water 50ml * 3, dimethyl formamide 70ml * 4, acetone 60ml * 2, methyl alcohol 60ml * 2, washes clean and suction filtration, 40-50 ℃ of vacuum-drying 6 hours.The cl content that records the gained resin is 2.5mmol/g.
(2) preparation of 2-chlorodiphenyl methyl alcohol resin
20ml tetrahydrofuran (THF) and 3.5g magnesium chips are joined in the reaction flask, and 18-22 ℃ of stirring drips the mixing solutions that 20ml bromobenzene and 20ml tetrahydrofuran (THF) are made into down.Hierarchy of control temperature is about 40-45 ℃.After being added dropwise to complete, temperature control 55-60 ℃ was reacted 1 hour, was cooled to then about 0 ℃, stirred to add the above-mentioned 2-chloro benzophenone resin of 10g exsiccant and the mixed solution of 100ml tetrahydrofuran (THF) down, refluxed 48 hours.After the cooling, reaction mixture is added the 385ml dioxane: water: in the mixing solutions of hydrochloric acid=5: 1: 1, stirred 2 hours, drain.Then, wash by following order and pass: dioxane: H
2O: HCl=5: 2: 1 (* 1), acetone (* 2), water (* 1), DMF (* 1) methyl alcohol (* 2).Drain, in 40-50 ℃ of vacuum-drying 6 hours.The cl content that records the gained resin is 2.0mmol/g.
(3) preparation of 2-chlorine triphenyl chlorine resin
In reaction flask, add above-mentioned 2-chlorodiphenyl methyl alcohol resin 10g, toluene 120ml, stirred 1 hour at 80 ℃; Dripping acetyl chloride 20ml then, about 4 hours of insulation reaction is reduced to room temperature, suction filtration, successively with toluene * 2, methylene dichloride * 2, sherwood oil (30-60 ℃) * 2 washing, vacuum-drying obtains 2-chlorine triphenyl chlorine resin, and the active cl content that records the gained resin is 1.2mmol/g.
Embodiment 7:
Contain the preparation of 4-methyldiphenyl base methylamino gel:
The first step reaction:
With the anhydrous AlCl of 2.67g
3Join successively in the 60ml ethylene dichloride with the 3.09g Butyltriphenylphosphonium chloride, cool to below 0 ℃ and stirred 30 minutes.The polystyrene gel (containing methacrylate triglycol ester 3%, weight percent) that 10g100-200 order methacrylate binaryglycol ester is crosslinked joined in the 140ml ethylene dichloride stirring at room 1 hour, cooled to-15 ℃.Above-mentioned solution is added, keep about-12 ℃ 1 hour, be warmed up to 20 ℃ then naturally, reacted 14 hours.Filter washing.Washing sequence: methylene dichloride three times, methyl alcohol three times, water two times, methyl alcohol one time dries.
The reaction of second step:
10g the first step final resin, 100ml oil of mirbane, 20g ammonium formiate, 20g formic acid solution, 30g methane amide are added in the reaction flask, and logical nitrogen stirs, and reflux is divided water, reacts 40 hours.Cooling is filtered.Stir down, repeat the first step washing process, washing at last finishes.Drain.
Three-step reaction:
10g second step final resin, 20ml hydrochloric acid, 10ml ethanol add in the reaction flask, stir and are warmed up to 75-80 ℃, react 6 hours, and cooling is filtered.Washing: methyl alcohol two times, methylene dichloride two times, methyl alcohol two times, ethanol one time is washed 3 times.Be end with the washing at last, drain, 50 ℃ of dryings.The amino content that records the gained resin is 1.0mmol/g.
Embodiment 8:
Contain the preparation of Rink acid and Rink amide group gel:
The first step reaction:
6g100-200 order chloromethylation (cl content is 1.46mmol/g) (contained methacrylate triglycol ester 3% by the crosslinked polystyrene gel of methacrylate triglycol ester, weight percent) joins in the N,N-DIMETHYLACETAMIDE of 30ml and stirred 1 hour, add 2 then, the 4-dimethoxy-4 ' ' hydroxy benzophenone 3.85g is dissolved in the solution of 20ml N,N-DIMETHYLACETAMIDE, add 1.06g salt of wormwood and logical nitrogen, be heated to 50 ℃ of stirring reactions.Add 0.06g potassiumiodide and 0.33g sodium methylate after 1 hour, continued stirring reaction 10-16 hour.After the cooling, leach mother liquor, the gained resin is washed to neutrality with N,N-DIMETHYLACETAMIDE washing 2 times with about 50 ℃; Wash with water again; Methyl alcohol is washed; Dimethyl formamide is given a baby a bath on the third day after its birth inferior; Methyl alcohol is given a baby a bath on the third day after its birth inferior; Dry.
The reaction of second step:
7.8g adding the 40ml tetrahydrofuran (THF), stirred 2 hours the ketone resin that the first step obtains; The NaBH that adds 3.5g
4Be dissolved in the solution of 1N NaOH, logical nitrogen, hierarchy of control temperature＜8 ℃ are stirred and are added AlCl down in batches
3, 50 ℃ of stirring reactions 12 hours filter, and resin washes with water to neutrality, stirs the hydrochloric acid 20ml that adds 0.5N down, reacted 1 hour, and drained, the salt acid elution of using 0.5N is again once drained, and is washed to neutrality, wash three times, methyl alcohol is washed once, and THF gives a baby a bath on the third day after its birth inferior, and methyl alcohol is given a baby a bath on the third day after its birth inferior, 40 ℃ of vacuum-dryings.Obtain the Rink acid resin, the hydroxy radical content that records resin is 1.0mmol/g.
Three-step reaction:
Stirred 1 hour 7.8g the Rink acid resin that second step obtained adds the 65ml dimethyl formamide, stir the Fmoc-NH that adds 9.2g down below 15 ℃
2Be dissolved in the solution of 40ml DMF, adding 0.24g Phenylsulfonic acid leads to nitrogen, and 50 ℃ were reacted 6 hours, and cooling is filtered, and DMF gives a baby a bath on the third day after its birth inferior, and methyl alcohol is given a baby a bath on the third day after its birth inferior, and methylene dichloride is given a baby a bath on the third day after its birth inferior.Dry 40 ℃ of vacuum-dryings.Get the Rink amide resins, recording Fmoc content is 0.69mmol/g.
Embodiment 9:
The copolymerization of methacrylate triglycol ester and 1-chloro-4-methyl-benzene:
In the 1000ml there-necked flask, add the aqueous solution that 450ml contains 5% sodium-chlor and 0.5% polyvinyl alcohol, the organic phase solution that adding is made up of 12g4-1-chloro-4-methyl-benzene, 26.8g vinylbenzene, 1.2g methacrylate triglycol ester and 0.2g benzoyl peroxide, adjust stirring velocity, the organic phase liquid pearl diameter that makes aqueous phase is warmed up to 80 ℃ and kept 8 hours under this stirring velocity between the 200-400 order.With the gained bead polymer with hot wash for several times, dry, 200-400 order resin is got in screening.The cl content that records the gained resin is 1.5mmol/g.
Embodiment 10:
The copolymerization of methacrylate binaryglycol ester and hydroxymethyl phenoxy vinyl toluene:
In the 1000ml there-necked flask, add the aqueous solution that 450ml contains 5% sodium-chlor and 0.5% polyvinyl alcohol, the organic phase solution that adding is made up of 14.4g4-(4-hydroxymethyl phenoxy methyl) vinylbenzene, 24g vinylbenzene, 1.6g methacrylate binaryglycol ester and 0.2g benzoyl peroxide, adjust stirring velocity, the organic phase liquid pearl diameter that makes aqueous phase is warmed up to 80 ℃ and kept 8 hours under this stirring velocity between the 100-200 order.With the gained bead polymer with hot wash for several times, dry, 100-200 order resin is got in screening.The hydroxy radical content that records the gained resin is 1.2mmol/g.
Embodiment 11:
The copolymerization of methacrylate binaryglycol ester and acetoxy-styrene:
In the 1000ml there-necked flask, add the aqueous solution that 450ml contains 5% sodium-chlor and 0.5% polyvinyl alcohol, the organic phase solution that adding is made up of 37.6g 4-acetoxy-styrene and 2.4g methacrylate binaryglycol ester and 0.2g benzoyl peroxide, adjust stirring velocity, the organic phase liquid pearl diameter that makes aqueous phase is warmed up to 80 ℃ and kept 8 hours under this stirring velocity between the 100-200 order.With the gained bead polymer with hot wash for several times, dry, 100-200 order resin is got in screening.The acetoxyl group content that records the gained resin is 5.6mmol/g.
Embodiment 12:
The copolymerization of methacrylate triglycol ester and vinyl benzoic acid:
In the 1000ml there-necked flask, add the aqueous solution that 450ml contains 5% sodium-chlor and 0.5% polyvinyl alcohol, the organic phase solution that adding is made up of 30g 4-vinyl benzoic acid, 6g vinylbenzene and 4g methacrylate triglycol ester and 0.2g benzoyl peroxide, adjust stirring velocity, the organic phase liquid pearl diameter that makes aqueous phase is warmed up to 80 ℃ and kept 8 hours under this stirring velocity between the 100-200 order.With the gained bead polymer with hot wash for several times, dry, 100-200 order resin is got in screening.The carboxyl-content that records the gained resin is 4.4mmol/g.
Embodiment 13:
The resin that contains 4-benzyloxy phenylcarbinol base by crosslinked polystyrene gel of methacrylate binaryglycol ester or the crosslinked polystyrene gel deutero-of methacrylate triglycol ester is as the synthetic polypeptide of solid phase carrier, synthesized the more difficult synthetic peptide of bibliographical information section ACP (65-74) (W.S.Hancock, D.J.Prescott, P.R.Vagelos, G.Marshall, J.Org.Chem.1973,38,774), the aminoacid sequence of ACP (65-74) is Val-Gln-Ala-Ala-Ile-Asp-Tyr-Ile-Asn-Gly.Adopt conventional Fmoc solid-phase peptide synthesis strategy to synthesize.With DMF is solvent, resin with quite and the protection amino acid of 3 times of resin function base unit weights and benzotriazole-N of 3 times, N, N ', N ' ,-tetramethyl-urea phosphofluoric acid ester (HBTU)/1-hydroxyl benzotriazole (HOBt) condensation 2 hours.Resin is handled 30 minutes deprotections with 20% piperidines/DMF after using the DMF thorough washing.Carry out next circulation then, until synthetic required peptide sequence.Last resin was handled 4 hours with trifluoroacetic acid/thioanisole/water (95: 2.5: 2.5, volume ratio), and polypeptide cracking from the resin is got off.
Analyze (post: ZORBAX SB-C18 (Agilent) through HPLC, moving phase: 0.05%TFA/18% acetonitrile/%82 water, flow velocity: 0.8 ml/min, detect wavelength: 220nm), adopting resin that the polystyrene resin deutero-of methacrylate binaryglycol ester crosslinked (3%, weight ratio) contains 4-benzyloxy phenylcarbinol base is 85.7% as the purity of carrier synthetic ACP (65-74); Adopting resin that the polystyrene resin deutero-of methacrylate triglycol ester crosslinked (3%, weight ratio) contains 4-benzyloxy phenylcarbinol base is 88.1% as the purity of carrier synthetic ACP (65-74); And with Wang resin (1%DVB-St multipolymer) under the same conditions the purity of synthetic ACP (65-74) be 73.3%.
Claims (10)
1. novel crosslinked polystyrene gel is characterized in that it is that methacrylate binaryglycol ester or methacrylate triglycol ester are as linking agent and cinnamic copolymer gel.
2. according to the described gel of claim 1, it is characterized in that forming two kinds of comonomers of gel: methacrylate binaryglycol ester or methacrylate triglycol ester and cinnamic weight ratio scope are: 0.5-10: 90-99.5.
The derivative of the functionalizing of 3 one kinds of crosslinked polystyrene gels, it is characterized in that the functional group of functionalizing includes but not limited to the functional group shown in the following structural formula (R) to carrying out functionalizing by methacrylate binaryglycol ester or methacrylate triglycol ester as linking agent and cinnamic copolymer gel:
The purposes of the functionalizing derivative of 4 crosslinked polystyrene gels is characterized in that the solid phase carrier or the solids removal agent of, solid phase organic synthesis synthetic as solid-phase polypeptide and combinatorial chemistry.
5 one kinds of crosslinked substituted phenylethylene gels is characterized in that it is methacrylate binaryglycol ester or the methacrylate triglycol ester terpolymer as linking agent and vinylbenzene and substituted phenylethylene.
6 according to the described gel of claim 5, it is characterized in that forming three kinds of comonomers of gel: methacrylate binaryglycol ester or methacrylate triglycol ester, substituted phenylethylene and cinnamic weight ratio scope are: 0.5-10: 1-99.5: 0-98.5.
7 according to claim 5 or 6 described gels, it is characterized in that substituted phenylethylene includes but not limited to 1-chloro-4-methyl-benzene, brooethyl vinylbenzene, methylol vinylbenzene, hydroxymethyl phenoxy vinyl toluene, acetoxy-styrene or vinyl benzoic acid.
The purposes of 8 crosslinked substituted phenylethylene gels is characterized in that the solid phase carrier or the solids removal agent of, solid phase organic synthesis synthetic as solid-phase polypeptide and combinatorial chemistry.
9. according to claim 1 or 4 described gels, it is characterized in that said gel can be obtained by radical copolymerization.
10. according to claim 1 or 4,9 described gels, it is characterized in that said gel can be obtained by mass polymerization, solution polymerization or suspension polymerization.
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| CNB2005100162543A Expired - Fee Related CN1297579C (en) | 2005-02-28 | 2005-02-28 | Crosslinked polystyrene gel and use thereof |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP2055724A1 (en) * | 2007-11-05 | 2009-05-06 | Nitto Denko Corporation | Production method of porous resin bead |
| CN101429263B (en) * | 2007-11-05 | 2012-07-18 | 日东电工株式会社 | Production method of porous resin particle having hydroxyl group |
| CN103881016A (en) * | 2012-12-20 | 2014-06-25 | 南开大学 | Porous resin using as solid phase synthesis carrier |
| CN110028610A (en) * | 2019-04-02 | 2019-07-19 | 天津南开和成科技有限公司 | A kind of solid macromolecule Grignard Reagent and preparation method thereof |
| CN113403852A (en) * | 2021-05-19 | 2021-09-17 | 兰义忠 | Ultrathin waterproof fabric and preparation method thereof |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5166077A (en) * | 1987-04-30 | 1992-11-24 | Nitto Denko Corporation | Latex for immobilization of physiologically active substances for immuno nephelometry |
-
2005
- 2005-02-28 CN CNB2005100162543A patent/CN1297579C/en not_active Expired - Fee Related
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP2055724A1 (en) * | 2007-11-05 | 2009-05-06 | Nitto Denko Corporation | Production method of porous resin bead |
| CN101429261B (en) * | 2007-11-05 | 2011-12-07 | 日东电工株式会社 | Production method of porous resin bead |
| CN101429263B (en) * | 2007-11-05 | 2012-07-18 | 日东电工株式会社 | Production method of porous resin particle having hydroxyl group |
| CN103881016A (en) * | 2012-12-20 | 2014-06-25 | 南开大学 | Porous resin using as solid phase synthesis carrier |
| CN103881016B (en) * | 2012-12-20 | 2017-08-25 | 南开大学 | A kind of porous resin as synthesis in solid state carrier |
| CN110028610A (en) * | 2019-04-02 | 2019-07-19 | 天津南开和成科技有限公司 | A kind of solid macromolecule Grignard Reagent and preparation method thereof |
| CN113403852A (en) * | 2021-05-19 | 2021-09-17 | 兰义忠 | Ultrathin waterproof fabric and preparation method thereof |
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| CN1297579C (en) | 2007-01-31 |
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