CN109438424A - Ribavirin haptens and artificial antigen and the preparation method and application thereof - Google Patents

Ribavirin haptens and artificial antigen and the preparation method and application thereof Download PDF

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CN109438424A
CN109438424A CN201811367056.5A CN201811367056A CN109438424A CN 109438424 A CN109438424 A CN 109438424A CN 201811367056 A CN201811367056 A CN 201811367056A CN 109438424 A CN109438424 A CN 109438424A
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ribavirin
haptens
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沈建忠
王战辉
温凯
江海洋
于雪芝
柯跃斌
朱建宇
史为民
张素霞
张西亚
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China Agricultural University
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Abstract

The present invention relates to Ribavirin haptens and artificial antigens and the preparation method and application thereof.Shown in the structure such as formula (I) or formula (II) of the Ribavirin haptens:

Description

Ribavirin haptens and artificial antigen and the preparation method and application thereof
Technical field
The invention belongs to technical field of biochemical industry, specifically, be related to Ribavirin haptens and artificial antigen and its Preparation method and application.
Background technique
Ribavirin (Ribavirin, RBV), also known as virazole, ribavirin are a kind of purine nucleosides of synthesis Like object.It is researched and developed within 1972, is thrown in Mexico's Initial Public Offering, China's official approval in 1980 by ICN company, the U.S. within 1974 It produces.Ribavirin is a kind of broad-spectrum antiviral drug, has inhibiting effect, A type, influenza B to a variety of RNA virus and DNA virus Virus is most sensitive, and mechanism of action is that it is metabolized as Ribavirin group (1,2,4- triazole -3- carboxylic acid amides) in vivo, which can To inhibit varial polymerases, the synthesis of viral interference RNA, thus the duplication of blocking virus.In addition, Ribavirin can also induce T cell Phenotypic Change, to enhance the humoral immune reaction of T cell mediation.
Ribavirin is playing extensive antivirus action simultaneously, and toxic side effect is also of increasing concern, for a long time, In order to prevent livestock and poultry influenza, Ribavirin is also widely used for during livestock and poultry cultivation.In order to guarantee mankind's drug safety and Animal epidemic prevention safety, the Ministry of Agriculture in 2005 issues No. 560 bulletin, forbids Ribavirin, amantadine, moroxydine etc. antiviral Drug uses in animal-breeding.However Ribavirin is still generally existing the livestock and poultry cultivation process Misuse the phenomenon that, poultry Poultry product quality safety is by certain threat.
Currently, the detection means of Ribavirin is mainly liquid chromatogram (LC), LC-MS (LC-MS/MS) method, but by It is expensive in large-scale instrument, complicated for operation, portability is poor, it is difficult to realize the detection of production line, seriously constrain for benefit Effective supervision that Ba Weilin is used.Based on the immuno analytical method of Ag-Ab specific reaction, have detection speed fast, at This low advantage, therefore immune hapten molecule is designed, it is aobvious to develop a kind of simple, quick, for detecting Ribavirin antibody It obtains particularly important.
Summary of the invention
The object of the present invention is to provide Ribavirin haptens and artificial antigens and the preparation method and application thereof.
In order to achieve the object of the present invention, in a first aspect, the present invention provide Ribavirin haptens, structure such as formula (I) or Shown in formula (II):
Second aspect, the present invention provide the preparation method of the haptens, when the Ribavirin haptens is formula (I) institute When showing compound, preparation method includes the following steps:
1) 48.0g Ribavirin, 6.17g p-methyl benzenesulfonic acid and 39.2mL 2,2- dimethoxy propane are dissolved in 500mL third In ketone, mixed liquor is in 60 DEG C of reaction 3h;The sodium bicarbonate that 1mL 5% is added terminates reaction;After scavenger precipitation, collects and concentration is filtered Liquid obtains formula (III) compound after column chromatographic purifying;
2) 35.0g parafluorobenzoic acid, 15.0g dimethylamino naphthyridine are dissolved in the 500mL tert-butyl alcohol and are cooled to 0 DEG C;To mixed It closes and adds 107.50g di-tert-butyl dicarbonate in liquid, 16h is then stirred at room temperature, obtains colorless oil as product, this is colourless Oil product and 15.0g formula (III) compound and 60.0g cesium carbonate are dissolved in 300mL dimethyl sulfoxide, 110 DEG C of continuous heatings 16h;Dimethyl sulfoxide is removed by vacuum distillation;200mL water is added into residue, makes to be extracted with dichloromethane, and use sulphur It is concentrated after sour sodium is dry, residue is purified by column chromatography, and obtained 6.0g white solid product is molten at room temperature Solution stirs 16h in the mixed liquor 100mL of hydrochloric acid and tetrahydrofuran, with sodium bicarbonate tune pH to 7-9, obtains after filtering mixture To crude product;Crude product further with methanol crystallization to get.
Wherein, step 2) progress column chromatographs mobile phase used and is mixed by methanol and methylene chloride by 50:1 volume ratio, Stationary phase used is the silica gel of 200-300 mesh.
The mixed liquor of the hydrochloric acid and tetrahydrofuran is by the hydrochloric acid of tetrahydrofuran and concentration 12mol/L by 9:1 volume ratio It mixes.
When the Ribavirin haptens is compound shown in formula (II), the preparation method is as follows:
1.0g Ribavirin is put into bis- neck bottle of 100mL, acetone 20mL is added, 10min is stirred at room temperature, puts into 50mg pairs Toluenesulfonic acid, 60 DEG C of reaction 4h, after reaction system is spin-dried for, residue is chromatographed with column and is purified, and obtains white solid production Object is added in microwave tube, and 3mL pyridine is added, and 10min is stirred at room temperature, and puts into succinic anhydride 426mg, 120 DEG C of reaction 20min, will The product that reaction system is spin-dried for obtaining after rear pillar chromatographic purifying is transferred in 100mL flask, and 15mL pyridine is added, is stirred at room temperature 10min, put into 5mL trifluoroacetic acid, 50 DEG C of reaction 12h, by reaction system be spin-dried for get.
Wherein, it carries out column and chromatographs mobile phase used to be to be mixed by methanol and methylene chloride by 1:20 volume ratio, it is used Stationary phase is the silica gel of 200-300 mesh.
The third aspect, the present invention provide Ribavirin artificial antigen, are by the Ribavirin haptens and carrier protein It is obtained after coupling.The Ribavirin artificial antigen can be used as immunogene and can also be used as coating antigen.
Wherein, the carrier protein is selected from bovine serum albumin(BSA), ovalbumin, keyhole limpet hemocyanin, thyroprotein, people Seralbumin;It is preferred that bovine serum albumin(BSA), keyhole limpet hemocyanin.
Fourth aspect, the present invention provide the preparation method of the artificial antigen, using active ester method by carrier protein couplet In the carboxyl carbon of the haptens described in claim 1.
Preferably, the coupling Mole Ratio of compound shown in formula (I) and carrier protein is 9.6:1.Compound shown in formula (II) Coupling Mole Ratio with carrier protein is 7.0:1.
5th aspect, the present invention provide the specific antibody prepared by the Ribavirin artificial antigen, including polyclonal Antibody and monoclonal antibody, preferably polyclonal antibody.The polyclonal antibody can pass through Ribavirin artificial antigen immunization experiment Animal (such as new zealand white rabbit) collects serum purifying and obtains.
6th aspect, the present invention provide the following any of the Ribavirin haptens or the Ribavirin artificial antigen Using:
1. preparing the application in anti-Ribavirin specific antibody;
2. detecting the application in anti-Ribavirin specific antibody.
7th aspect, the present invention provide the Ribavirin detection reagent prepared by the specific antibody or kit.
Eighth aspect, the present invention provide following any application of the specific antibody:
(1) application in detection Ribavirin;
(2) application in the immuno-chromatographic test paper strip for preparing Ribavirin;
(3) application in the colloidal gold colloidal gold detection test paper strip for preparing Ribavirin.
By above-mentioned technical proposal, the present invention at least have following advantages and the utility model has the advantages that
Present invention firstly discloses two kinds of new Ribavirin haptens, artificial antigens and preparation method thereof, with the benefit Animal is immunized in Ba Weilin artificial antigen, and potency height, the specific antibody of high sensitivity can be obtained.Ribavirin provided by the invention Haptens and its antibody of preparation, the Ribavirin detection method to establish quick, easy, inexpensive, sensitive, special provide newly Means.
Ribavirin antibody (how anti-) is prepared using the conjugate of haptens provided by the invention and carrier protein, was prepared Journey is simple, economical, and the detection sensitivity of antibody is high up to 0.31ng/mL, practical value.The present invention has in detection of veterinary drugs in food There is good application prospect.
Detailed description of the invention
Fig. 1 is the flow chart of the preparation of Ribavirin haptens shown in formula (I) in the embodiment of the present invention 1.
Fig. 2 is the flow chart of the preparation of Ribavirin haptens shown in formula (II) in the embodiment of the present invention 1.
Fig. 3 is the mass spectrogram of Ribavirin haptens shown in formula (I) in the embodiment of the present invention 1.
Fig. 4 is the mass spectrogram of Ribavirin haptens shown in formula (II) in the embodiment of the present invention 1.
Fig. 5 is the nuclear magnetic spectrogram of Ribavirin haptens shown in formula (I) in the embodiment of the present invention 1.
Fig. 6 is the nuclear magnetic spectrogram of Ribavirin haptens shown in formula (II) in the embodiment of the present invention 1.
Fig. 7 is the artificial antigen structure chart of the preparation of Ribavirin haptens shown in formula (I) in the embodiment of the present invention 2.
Fig. 8 is the artificial antigen structure chart of the preparation of Ribavirin haptens shown in formula (II) in the embodiment of the present invention 2.
Fig. 9 be the embodiment of the present invention 2 in RBV 1.-BSA MALDI-TOF-MS figure.
Figure 10 be the embodiment of the present invention 2 in RBV 2.-BSA MALDI-TOF-MS figure.
Figure 11 is the canonical plotting for detecting Ribavirin in the embodiment of the present invention 4 using polyclonal antibody.
Specific embodiment
The following examples are used to illustrate the present invention, but are not intended to limit the scope of the present invention..Unless otherwise specified, embodiment Used in the conventional means that are well known to those skilled in the art of technological means, raw materials used is commercial goods.
Quantitative test in following embodiment, is respectively provided with three repeated experiments, and results are averaged.Used in embodiment PBS buffer solution is the PBS buffer solution of pH7.4,0.01M.Carbonate buffer solution used in embodiment be pH9.6, The sodium carbonate buffer of 0.05mol/L.
NHS is the abbreviation of n-hydroxysuccinimide.EDC is 1- (3- dimethylamino-propyl) -3- ethyl carbodiimide salt The abbreviation of hydrochlorate.DMF is the abbreviation of N,N-dimethylformamide.NHS, EDC, bovine serum albumin(BSA) (Albuminfrom Bovine serum, BSA), keyhole limpet hemocyanin (Keyhole Limpet Hemocyanin, KLH) and Freund help completely Agent, incomplete Freund's adjuvant are purchased from Sigma company.Column chromatographs the silica gel that stationary phase used is 200-300 mesh.
The preparation and characterization of 1 Ribavirin haptens of embodiment
One, the preparation of Ribavirin haptens
1, the preparation of Ribavirin haptens shown in formula (I)
48.0g Ribavirin, 6.17g p-methyl benzenesulfonic acid and 39.2mL 2,2- dimethoxy propane are dissolved in 500mL acetone In, mixed liquor is in 60 DEG C of reaction 3h.The sodium bicarbonate that 1mL 5% is added terminates reaction.After scavenger precipitation, collects and concentration is filtered Liquid.Intermediate product shown in formula (III) is obtained after column chromatographic purifying.
35.0g parafluorobenzoic acid, 15.0g dimethylamino naphthyridine are dissolved in the 500mL tert-butyl alcohol and are cooled to 0 DEG C.It is mixing 107.50g di-tert-butyl dicarbonate is added in liquid, and 16h is then stirred at room temperature.It is purified, is obtained a kind of colourless with column chromatography Intermediate product shown in oil product and 15.0g formula (III) and 60.0g cesium carbonate are dissolved in 300mL dimethyl sulfoxide by oil product In, 110 DEG C of continuous heating 16h.Dimethyl sulfoxide is removed by vacuum distillation.200mL water is added in residue, uses dichloro Methane extraction, and with being concentrated after sodium sulphate drying, residue is the column of ethanol/methylene (volume ratio 50:1) by mobile phase Chromatography purified, will obtain 6.0g white solid product at room temperature with hydrochloric acid/tetrahydrofuran (12mol/L concentrated hydrochloric acid 10ml and tetrahydrofuran 90ml) mixed liquor stir 16h.With sodium bicarbonate tune pH=9, crude product is obtained after filtering mixture. Crude product further with methanol crystallization 3 times, obtain the pure products of 2.6g white solid, as Ribavirin shown in formula (I) Haptens, yield 55%.Specific synthetic route is shown in Fig. 1.
2, the preparation of Ribavirin haptens shown in formula (II)
It weighs 1.0g Ribavirin to be put into bis- neck bottle of 100ml, acetone 20mL is added, 10min is stirred at room temperature, put into 50mg P-methyl benzenesulfonic acid, 60 DEG C of reaction 4h, after reaction system is spin-dried for, residue is ethanol/methylene (volume ratio by mobile phase Column chromatography 1:20) is purified, and is obtained white solid product and is added in microwave tube, 3mL pyridine is added, is stirred at room temperature 10min, puts into succinic anhydride 426mg, and reaction system is spin-dried for the product obtained after rear pillar chromatographic purifying by 120 DEG C of reaction 20min It is added in 100mL flask, 15mL pyridine is added, 10min is stirred at room temperature, put into 5mL trifluoroacetic acid, 50 DEG C of reaction 12h will react System is spin-dried for obtaining target product being Ribavirin haptens shown in formula (II).Specific synthetic route is shown in Fig. 2.
Two, the characterization of Ribavirin haptens
1, Mass Spectrometric Identification
Ribavirin haptens (molecular formula C shown in the formula (I) of step 115H16N4O7) Mass Spectrometric Identification result: MS m/ z[M+H]+Theoretical value: 364.3;Measured value: 365.0, it matches with the molecular weight of target product, mass spectrum is shown in Fig. 3.
Ribavirin haptens (molecular formula C shown in the formula (II) of step 112H16N4O8) Mass Spectrometric Identification result: MS m/z[M+H]+Theoretical value: 344.3;Measured value: 343.1, it matches with the molecular weight of target product, mass spectrum is shown in Fig. 4.
2, nuclear magnetic resonance is identified
The nuclear-magnetism qualification result of Ribavirin haptens shown in the formula (I) of step 1:1H NMR(400MHz,CDCl3), 1.35(s,3H),1.52(s,9H),1.53(s,3H).4.16-4.27(m,2H),4.60-4.63(m,1H),5.08-5.10(m, 1H), 5.30 (d, J=2H, 1H), 6.33 (s, 1H), 6.91 (d, J=7.2Hz, 2H), 7.70 (s, br, 1H), 7.79 (d, J= 8.8Hz, 2H), 8.01 (s, br, 1H), 8.79 (s, 1H) nuclear magnetic datas show that the compound of above method synthesis is that target produces Object, magnetic resonance qualification result are shown in Fig. 5.
The nuclear-magnetism qualification result of Ribavirin haptens shown in the formula (II) of step 1:1H NMR(400MHz,CD3OD), δ 8.68(s,1H),5.93(s,4H),4.55-4.54(m,1H),4.46-4.39(m,2H),4.26-4.25(m,2H),2.59 (brs, 4H) nuclear magnetic data shows that the compound of above method synthesis is target product, and magnetic resonance qualification result is shown in Fig. 6.
The preparation and characterization of 2 Ribavirin artificial antigen of embodiment
In the immunogene and the preparation method of coating antigen, difference is the usage type of carrier protein, described immune Body protein published originally mainly uses KLH, and the coating antigen carrier protein mainly uses BSA, and coupling method used is active ester method.By The artificial antigen structure of the preparation of Ribavirin haptens shown in formula (I) and formula (II) is shown in Fig. 7, Fig. 8.
One, the synthesis and identification of Ribavirin coating antigen
1, the preparation of Ribavirin coating antigen
(1) compound shown in (I) that 20mg embodiment 1 is prepared is dissolved in 2mL DMF, be added 10mg NHS and 10mg DCC, is stirred overnight at room temperature, obtains solution I.
(2) 7mg BSA is added in 7mL PBS buffer solution, is sufficiently dissolved, as solution II.
(3) solution I is slowly added dropwise into solution II, slow 4 DEG C of stirrings are packed into bag filter afterwards for 24 hours, 4 in physiological saline DEG C dialysis 72h (water is changed 6 times in centre), obtain Ribavirin coating original solution, -20 DEG C preservation.Compound synthesis shown in formula (I) Ribavirin coating antigen abbreviation RBV 1.-BSA.
(4) using the Ribavirin coating antigen of compound synthesis shown in the same method preparation formula (II) of above-mentioned three step, letter Claim RBV 2.-BSA.
2, the identification of Ribavirin coating antigen
With Matrix-assisted laser desorption ionization (Matrix-Assisted Laser Desorption/ Ionization Time of Flight Mass Spectrometry, MALDI-TOF-MS) method measures RBV 1.-BSA respectively Solution and RBV 2. in-BSA solution BSA and haptens combination ratio.As a result see Fig. 9, Figure 10.
In conjunction with than={ M (conjugate)-M (protein) }/M (haptens)
The molecular weight of BSA is 65700.3, and the molecular weight of formula (I) haptens is 364.3, is analyzed by mass spectrum peak-peak even The molecular weight for joining object is 69212.9, is computed and show that the combination ratio of BSA and haptens are 9.6, i.e. a RBV 1. BSA in-BSA 9.6 haptens are averagely coupled on molecule.
The molecular weight of formula (II) haptens is 344.3, and the molecular weight by mass spectrum peak-peak analysis conjugate is 68119.3, it is computed and show that the combination ratio of BSA and haptens are 7.0, is i.e. 2. RBV is averagely coupled in-BSA on a BSA molecule 7.0 haptens.
Two, the synthesis of Ribavirin immunogene
1, the preparation of Ribavirin immunogene
BSA is replaced with KLH, the 1 of other same step 2.
Compound synthesis Ribavirin immunogene shown in formula (I) and formula (II) distinguishes abbreviation RBV 1.-KLH, RBV 2.-KLH.
The sero-fast preparation of 3 Ribavirin of embodiment
2. 2 groups of 3-4 monthly ages, weight 1.5- is immunized in-KLH solution respectively by RBV prepared by embodiment 2 1.-KLH, RBV The Female New Zealand White Rabbit of 2.0kg, every group 2.By each immunogene normal saline dilution to 1mg/mL, helped with equivalent Freund Agent emulsification.Head exempts from using Freund's complete adjuvant, the intradermal multi-point injection of the nape of the neck, and immunizing dose is 1mg/.Reinforced after 4 weeks It is immune, every 4 weeks plus exempt from 1 time, altogether plus exempts from 3 times, adjuvant is changed to incomplete Freund's adjuvant, and immunizing dose is constant, is changed to the nape of the neck Subcutaneous multi-point injection.After the 4th is 1 week immune, largely taken a blood sample with the method for Culling heart blood.After taking blood, by 37 DEG C of standing 2h of blood, Then it stands overnight for 4 DEG C, then 3000rpm is centrifuged 20min, collects supernatant, as antiserum, and -20 DEG C of packing save.
The sero-fast measurement of 4 Ribavirin of embodiment
One, antiserum titre is detected using indirect ELISA method, specific steps are as follows:
1) it is coated with: the antigen in embodiment 2 is carried out again with 0.05M, pH9.6 carbonate buffer solution since 10 μ g/mL Than dilution, 100 holes μ L/, 37 DEG C of reaction 2h.
2) it washs: solution in plate is inclined, dry, and washed 3 times with cleaning solution, each 3min.
3) it closes: after patting dry, 200 hole μ L/ confining liquids, 37 DEG C of reaction 2h is added.It is dried for standby after washing.
4) it is loaded: antiserum being subjected to doubling dilution since 1:1000, and is added in the coating hole of various dilutions, 100 holes μ L/, 37 DEG C of reaction 1h;Sufficiently after washing, the diluted HRP- goat anti-rabbit igg of 1:3000 is added, 100 holes μ L/, 37 DEG C anti- Answer 1h.
5) it develops the color: ELISA Plate is taken out, sufficiently after washing, the TMB developing solution of 100 μ L is added in every hole, and 37 DEG C are protected from light 15min。
6) terminate and measure: 100 μ L terminate liquids are added to terminate reaction in every hole, and the OD in each hole is then measured with microplate reader450 Value.
7) result interpretation: with OD450Serum highest corresponding to 2.1 times of value >=negative control hole (i.e. P/N >=2.1) is dilute Release the ELISA potency that multiple is serum.
Two, minimum detection limit, half inhibition and the detection of specificity
Specific steps are as follows:
1) above-mentioned indirect ELISA method is used to determine that 1.-BSA is as coating antigen using RBV, with RBV 1.-KLH immune rabbit The serum of acquisition is as antibody, with OD450Being worth the antigen and antibody concentration corresponding at 1.5 or so is most suitable working concentration.
2) it is coated with: coating antigen being used and is coated with 20000 times of buffer dilution, 100 holes μ L/, 37 DEG C of reaction 2h.
3) wash and close: method is operated with above-mentioned indirect elisa method.
4) match ribavirin standard solution: the PBS solution of ribavirin standard product 0.01mol/L, pH7.4 are configured to The mother liquor of 5mg/mL, then, before sample-adding, then with 0.01mol/L, the PBS solution doubling dilution of pH7.4 is at needing concentration (RBV Concentration be respectively 0.005ng/mL, 0.05ng/mL, 0.25ng/mL, 0.5ng/mL, 5ng/mL, 50ng/mL).
5) be loaded: each concentration standards of Ribavirin of 50 μ L doubling dilutions are added in every hole, then add 50 holes μ L/ most The antiserum of suitable extension rate, 37 DEG C of reaction 1h.Sufficiently after washing, the diluted HRP- goat anti-rabbit igg of 1:3000,100 μ L/ are added Hole, 37 DEG C of reaction 1h.
6) chromogenic reaction: ELISA Plate is taken out, and sufficiently after washing, the TMB developing solution of 100 μ L is added in every hole, and 37 DEG C are protected from light React 15min.
7) terminate and measure: 100 μ L terminate liquids are added to terminate reaction in every hole, and the OD in each hole is then measured with microplate reader450 Value.
8) data processing: using the logarithm of each concentration of Ribavirin as abscissa, with the corresponding OD value of each concentration of Ribavirin Standard curve is drawn according to four parameter logistic fits and passes through meter as shown in figure 11 using 8.5 software of Origin for ordinate Calculate IC50Value (half-inhibitory concentration) determines whether antiserum has specificity to Ribavirin.
The results show that for rabbit antiserum titre up to 50000, detection is limited to 0.02ng/mL, IC after four exempt from50Value is 0.31ng/mL, linear detection range 0.06-1.67ng/mL.
Although above the present invention is described in detail with a general description of the specific embodiments, On the basis of the present invention, it can be modified or is improved, this will be apparent to those skilled in the art.Cause This, these modifications or improvements, fall within the scope of the claimed invention without departing from theon the basis of the spirit of the present invention.

Claims (10)

1. Ribavirin haptens, which is characterized in that shown in its structure such as formula (I) or formula (II):
2. the preparation method of haptens described in claim 1, which is characterized in that when the Ribavirin haptens is formula (I) institute When showing compound, preparation method includes the following steps:
1) 48.0g Ribavirin, 6.17g p-methyl benzenesulfonic acid and 39.2mL 2,2- dimethoxy propane are dissolved in 500mL acetone In, mixed liquor is in 60 DEG C of reaction 3h;The sodium bicarbonate that 1mL 5% is added terminates reaction;After scavenger precipitation, collects and concentration is filtered Liquid obtains formula (III) compound after column chromatographic purifying;
2) 35.0g parafluorobenzoic acid, 15.0g dimethylamino naphthyridine are dissolved in the 500mL tert-butyl alcohol and are cooled to 0 DEG C;To mixed liquor Middle addition 107.50g di-tert-butyl dicarbonate, is then stirred at room temperature 16h, obtains colorless oil as product, by the colorless oil Product and 15.0g formula (III) compound and 60.0g cesium carbonate are dissolved in 300mL dimethyl sulfoxide, 110 DEG C of continuous heating 16h; Dimethyl sulfoxide is removed by vacuum distillation;200mL water is added into residue, makes to be extracted with dichloromethane, and use sodium sulphate It is concentrated after drying, residue is purified by column chromatography, and obtained 6.0g white solid product is dissolved at room temperature In the mixed liquor 100mL of hydrochloric acid and tetrahydrofuran, 16h is stirred, with sodium bicarbonate tune pH to 7-9, is obtained slightly after filtering mixture Product;Crude product further with methanol crystallization to get;
Wherein, step 2) progress column chromatographs mobile phase used and is mixed by methanol and methylene chloride by 50:1 volume ratio, used Stationary phase is the silica gel of 200-300 mesh;The mixed liquor of the hydrochloric acid and tetrahydrofuran is by tetrahydrofuran and concentration 12mol/L Hydrochloric acid is mixed by 9:1 volume ratio.
3. the preparation method of haptens described in claim 1, which is characterized in that when the Ribavirin haptens is formula (II) institute When showing compound, the preparation method is as follows:
1.0g Ribavirin is put into bis- neck bottle of 100mL, acetone 20mL is added, 10min is stirred at room temperature, puts into 50mg to toluene Sulfonic acid, 60 DEG C of reaction 4h, after reaction system is spin-dried for, residue is chromatographed with column and is purified, and is obtained white solid product and is added Enter in microwave tube, 3mL pyridine is added, 10min is stirred at room temperature, put into succinic anhydride 426mg, 120 DEG C of reaction 20min will react The product that system is spin-dried for obtaining after rear pillar chromatographic purifying is transferred in 100mL flask, and 15mL pyridine is added, 10min is stirred at room temperature, Put into 5mL trifluoroacetic acid, 50 DEG C of reaction 12h, by reaction system be spin-dried for get;
Wherein, it carries out column and chromatographs mobile phase used to be to be mixed by methanol and methylene chloride by 1:20 volume ratio, fixation used It is mutually the silica gel of 200-300 mesh.
4. Ribavirin artificial antigen, which is characterized in that Ribavirin haptens and carrier protein couplet as described in claim 1 After obtain;
Wherein, the carrier protein is selected from bovine serum albumin(BSA), ovalbumin, keyhole limpet hemocyanin, thyroprotein, human serum Albumin;It is preferred that bovine serum albumin(BSA), keyhole limpet hemocyanin.
5. the preparation method of artificial antigen described in claim 4, which is characterized in that using active ester method by carrier protein couplet in In the carboxyl carbon of haptens described in claim 1.
6. method described in claim 5, which is characterized in that the coupling Mole Ratio of compound shown in formula (I) and carrier protein is 9.6:1;The coupling Mole Ratio of compound shown in formula (II) and carrier protein is 7.0:1.
7. following any application of artificial antigen described in haptens or claim 4 described in claim 1:
1. preparing the application in anti-Ribavirin specific antibody;
2. detecting the application in anti-Ribavirin specific antibody.
8. the specific antibody of the preparation of the artificial antigen as described in claim 4, including polyclonal antibody and monoclonal antibody, preferably Polyclonal antibody.
9. the Ribavirin detection reagent or kit of the preparation of the specific antibody as described in claim 8.
10. following any application of specific antibody described in claim 8:
(1) application in detection Ribavirin;
(2) application in the immuno-chromatographic test paper strip for preparing Ribavirin;
(3) application in the colloidal gold colloidal gold detection test paper strip for preparing Ribavirin.
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CN110330488A (en) * 2019-06-20 2019-10-15 深圳市易瑞生物技术股份有限公司 A kind of piroxicam haptens and its preparation method and application
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