CN109187521A - A kind of polymer film and preparation method thereof detecting alcohol content in saliva - Google Patents
A kind of polymer film and preparation method thereof detecting alcohol content in saliva Download PDFInfo
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Abstract
The invention discloses a kind of preparation methods of the polymer film of alcohol content in detection saliva, include the following steps: (one) modified by vinyl polylysine, (2) preparation of film matrix, (3) ion exchange, the doping of (four) sulfuric acid are carried out with potassium bichromate.The invention also discloses the polymer films of alcohol content in the detection saliva being prepared according to the preparation method of the polymer film of alcohol content in the detection saliva.The polymer film preparation cost of alcohol content is cheap in detection saliva disclosed by the invention, simple for process, responds fastly to alcohol content, and convenience and accuracy are high, and mechanical mechanics property is excellent.
Description
Technical field
The present invention relates to a kind of polymeric film materials of alcohol content in technology field of membrane materials more particularly to detection saliva
And preparation method thereof.
Background technique
In recent years, with the rapid development of China's economy and the sharp increase of population, the quantity of the motor vehicles on upper road
Increase year by year, at the same time, due to driver does not observe traffic rules and regulations and causes traffic accident be also it is growing day by day, to people's
Life and property, which are brought, to be seriously threatened.In these traffic accidents, due to drive when intoxicated make horrible disaster tragedy it is commonplace.To the greatest extent
Pipe traffic administration department has increased law enforcement dynamics and has punished dynamics, but has driver to make a desperate move always；In addition, also there is portion
Divide driver's irregular driving due to it cannot be accurately judged to the alcohol content of itself, this brings to other road traffics participant
Great security risk.Therefore, it needs to develop a kind of hand that can carry out internal alcohol content accurate, convenient qualitative detection
Section.
It mainly include in the prior art directly being sampled point to blood of human body alcohol concentration to Alcohol mental disorders method
Analysis detection utilizes expiration alcohol detector test.Wine can be accurately obtained by directly detecting to blood of human body alcohol concentration
Smart concentration value, but time-consuming, costly for the detection method, and need to carry out analysis test in use for laboratory special instrument, does not have
It is convenience, cheapness.Expiration formula detection method detection time is short, has certain portability, but due to alcohol in exhaled gas
Concentration is far below blood alcohol concentration, causes its error big, accuracy is bad, and convenience needs to be further increased.Using energy
The polymer film of different colours is shown to detect alcohol concentration in saliva with alcohol reaction, is that one kind has cheapness, convenience,
And the testing time is short, the high detection means of accuracy.
Therefore, it is fast to develop the response of a kind of pair of alcohol content, cheap, wine in convenience and the high detection saliva of accuracy
The polymer film of smart content accords with the demands of the market, and has extensive market value and application prospect.
Summary of the invention
In order to overcome the defects of the prior art, the present invention is intended to provide it is a kind of prepare it is cheap, to alcohol content ring
Should be fast, the polymer film of alcohol content in convenience and the high detection saliva of accuracy, while preparation method being provided.
The present invention is realized by the following scheme: a kind of preparation method for detecting the polymer film of alcohol content in saliva, packet
Include following steps:
I modified by vinyl polylysine: 2- chloracrylic acid ethyl ester, polylysine are dissolved in high boiling solvent, in room temperature
Under be stirred to react 6-8 hours, after be precipitated in methylene chloride, revolving remove methylene chloride, obtain modified by vinyl polylysine；
The preparation of II film matrix: modified by vinyl polylysine, the [3- (methacryl that will be prepared by step I
Amino)] propyl-dimethyl (3- sulfopropyl) ammonium hydroxide inner salt, vinylbenzenesulfonic acid, 5- vinyl tetrahydro -2- oxo -3-
Furancarboxylic acid ethyl ester, 2- trimethylsiloxy group -4- propenyloxy group benzophenone, two carbonic ester of allyl diglycol, initiator are dissolved in
Solution is formed in n,N-Dimethylformamide, acquired solution is placed in mold, at nitrogen or 80-90 DEG C of atmosphere of inert gases
600-900W microwave irradiation 15-30 minutes, after dried 4-6 hours at 80-90 DEG C in air dry oven again, obtain film matrix；
III carries out ion exchange with potassium bichromate: it is 50- that the film matrix being prepared by step II, which is immersed in temperature,
24-32 hours in the aqueous solution for the potassium bichromate that mass fraction at 60 DEG C is 10-20%, rear take out is washed with water 3-5 times, postposition
It is dried 10-15 hours in 90-100 DEG C of vacuum oven, obtains dichromic acid foundation ionic polymer membranes；
The doping of IV sulfuric acid: the dichromic acid foundation ionic polymer membranes being prepared by step III are immersed in mass fraction
It is 20-30 hours in the dilute sulfuric acid of 3-7%, rear taking-up, which is placed in 90-100 DEG C of vacuum oven, dries 10-15 hours, is detected
The polymer film of alcohol content.
Preferably, the ethyl ester of 2- chloracrylic acid described in step I, polylysine, high boiling solvent mass ratio be 1:(3-
5):(10-15)。
Preferably, the high boiling solvent is in dimethyl sulfoxide, N-Methyl pyrrolidone, n,N-Dimethylformamide
It is one or more of.
Preferably, modified by vinyl polylysine described in step I, [3- (methacrylamido)] propyl-dimethyl
(3- sulfopropyl) ammonium hydroxide inner salt, vinylbenzenesulfonic acid, 5- vinyl tetrahydro -2- oxo -3- furancarboxylic acid ethyl ester, 2- tri-
The matter of methyl siloxy -4- propenyloxy group benzophenone, two carbonic ester of allyl diglycol, initiator, N,N-dimethylformamide
Amount is than being 2:1:0.5:1:0.5:0.1:(0.03-0.05): (20-25).
Preferably, the initiator is selected from least one of azodiisobutyronitrile, azobisisoheptonitrile.
Preferably, the inert gas is selected from one of helium, neon, argon gas.
Preferably, film matrix described in step III, potassium bichromate aqueous solution mass ratio be 1:(20-30).
Preferably, the ionic polymer membranes of dichromic acid foundation described in step IV, dilute sulfuric acid mass ratio be 1:(40-60).
Further, a kind of polymer film detecting alcohol content in saliva, using alcohol content in above-mentioned detection saliva
The preparation method of polymer film be prepared.
The beneficial effects of adopting the technical scheme are that
1) preparation method provided by the invention for detecting the polymer film of alcohol content in saliva, simple process is easy to operate,
Not high to device dependence, not harsh to reaction condition requirement, raw material is easy to get, cheap, is suitble to large-scale industrial production.
2) polymer film provided by the invention for detecting alcohol content in saliva overcomes alcohol content inspection in the prior art
Time-consuming for detection method existing for survey means, costly, does not have convenience, cheapness, error is big, and the bad technology of accuracy is asked
Topic, have prepare it is cheap, fastly to alcohol content response, convenience and the high advantage of accuracy.
3) polymer film provided by the invention for detecting alcohol content in saliva, is made using two carbonic ester of allyl diglycol
For crosslinking agent, so that membrane material forms three-dimensional net structure, there is excellent mechanical property, but can assign film it is good can biology drop
Performance is solved, to reduce waste polymer film pollution on the environment；Siliceous benzophenone structure is introduced in membrane structure, is improved
The weatherability of film, especially anti-ultraviolet aging；Contain [3- (methacrylamido)] dimethylamine in molecular structure
Base (3- sulfopropyl) ammonium hydroxide internal salt structure, enables film to retain and absorb more sulfuric acid, convenient for detection.
4) polymer film provided by the invention for detecting alcohol content in saliva, Each part synergistic effect, so that poly-
Membrane material excellent combination property is closed, alcohol content is responded fastly, color change is obvious；Consolidated by ionic bond by chromate ion is planted
It is scheduled on polymer film, is conducive to structure and performance is stable, the indigo molecular easily occurred when avoiding with indigo equal dyestuffs is in reality
The technical issues of gradually being overflowed from substrate in use process.
Specific embodiment
In order to make those skilled in the art more fully understand technical solution of the present invention, and make features described above of the invention,
Purpose and advantage are more clear understandable, and the present invention will be further explained with reference to the examples below.Embodiment is only used for
It is bright the present invention rather than limit the scope of the invention.
Raw material described in the following embodiments of the present invention is from upper Haiquan sunrise foreign trade Co., Ltd.
Embodiment 1
A kind of preparation method detecting the polymer film of alcohol content in saliva, includes the following steps:
I modified by vinyl polylysine: 2- chloracrylic acid ethyl ester 10g, polylysine 30g are dissolved in dimethyl sulfoxide 100g
In, reaction 6 hours is stirred at room temperature, after be precipitated in methylene chloride, revolving removes methylene chloride, and it is poly- to obtain modified by vinyl
Lysine；
The preparation of II film matrix: by the modified by vinyl polylysine 20g being prepared by step I, [3- (methyl-prop
Alkene acylamino-)] propyl-dimethyl (3- sulfopropyl) ammonium hydroxide inner salt 10g, vinylbenzenesulfonic acid 5g, 5- vinyl tetrahydro-
2- oxo -3- furancarboxylic acid ethyl ester 10g, 2- trimethylsiloxy group -4- propenyloxy group benzophenone 5g, two carbonic acid of allyl diglycol
Ester 1g, azodiisobutyronitrile 0.3g, which are dissolved in n,N-Dimethylformamide 200g, forms solution, and acquired solution is placed in mold,
The 600W microwave irradiation 15 minutes at 80 DEG C of nitrogen atmosphere, after dried 4 hours at 80 DEG C in air dry oven again, obtain film base
Body；
III carries out ion exchange with potassium bichromate: the film matrix 10g being prepared by step II, which is immersed in temperature, is
24 hours in the aqueous solution 200g for the potassium bichromate that mass fraction at 50 DEG C is 10%, rear take out is washed with water 3 times, is placed on true
It is dried 10 hours in 90 DEG C of empty drying box, obtains dichromic acid foundation ionic polymer membranes；
The doping of IV sulfuric acid: the dichromic acid foundation ionic polymer membranes 10g being prepared by step III is immersed in quality
20 hours in the dilute sulfuric acid 400g that score is 3%, rear taking-up, which is placed in 90 DEG C of vacuum oven, dries 10 hours, obtains detection alcohol
The polymer film of content.
A kind of polymer film detecting alcohol content in saliva, using the polymer film of alcohol content in above-mentioned detection saliva
Preparation method be prepared.
Embodiment 2
A kind of preparation method detecting the polymer film of alcohol content in saliva, includes the following steps:
I modified by vinyl polylysine: 2- chloracrylic acid ethyl ester 10g, polylysine 35g are dissolved in N-Methyl pyrrolidone
In 115g, be stirred at room temperature reaction 6.5 hours, after be precipitated in methylene chloride, revolving remove methylene chloride, obtain vinyl
Modify polylysine；
The preparation of II film matrix: by the modified by vinyl polylysine 20g being prepared by step I, [3- (methyl-prop
Alkene acylamino-)] propyl-dimethyl (3- sulfopropyl) ammonium hydroxide inner salt 10g, vinylbenzenesulfonic acid 5g, 5- vinyl tetrahydro-
2- oxo -3- furancarboxylic acid ethyl ester 10g, 2- trimethylsiloxy group -4- propenyloxy group benzophenone 5g, two carbonic acid of allyl diglycol
Ester 1g, azobisisoheptonitrile 0.35g, which are dissolved in n,N-Dimethylformamide 215g, forms solution, and acquired solution is placed in mold
It is interior, the 700W microwave irradiation 18 minutes at 83 DEG C of helium atmosphere, after dried 4.5 hours at 83 DEG C in air dry oven again, obtain
Film matrix；
III carries out ion exchange with potassium bichromate: the film matrix 10g being prepared by step II, which is immersed in temperature, is
27 hours in the aqueous solution 235g for the potassium bichromate that mass fraction at 53 DEG C is 13%, rear take out is washed with water 4 times, is placed on true
It is dried 12 hours in 94 DEG C of empty drying box, obtains dichromic acid foundation ionic polymer membranes；
The doping of IV sulfuric acid: the dichromic acid foundation ionic polymer membranes 10g being prepared by step III is immersed in quality
23 hours in the dilute sulfuric acid 450g that score is 4%, rear taking-up, which is placed in 93 DEG C of vacuum oven, dries 12 hours, obtains detection alcohol
The polymer film of content.
A kind of polymer film detecting alcohol content in saliva, using the polymer film of alcohol content in above-mentioned detection saliva
Preparation method be prepared.
Embodiment 3
A kind of preparation method detecting the polymer film of alcohol content in saliva, includes the following steps:
I modified by vinyl polylysine: 2- chloracrylic acid ethyl ester 10g, polylysine 40g are dissolved in N, N- dimethyl formyl
In amine 125g, be stirred at room temperature reaction 7 hours, after be precipitated in methylene chloride, revolving remove methylene chloride, obtain vinyl
Modify polylysine；
The preparation of II film matrix: by the modified by vinyl polylysine 20g being prepared by step I, [3- (methyl-prop
Alkene acylamino-)] propyl-dimethyl (3- sulfopropyl) ammonium hydroxide inner salt 10g, vinylbenzenesulfonic acid 5g, 5- vinyl tetrahydro-
2- oxo -3- furancarboxylic acid ethyl ester 10g, 2- trimethylsiloxy group -4- propenyloxy group benzophenone 5g, two carbonic acid of allyl diglycol
Ester 1g, azodiisobutyronitrile 0.4g, which are dissolved in n,N-Dimethylformamide 235g, forms solution, and acquired solution is placed in mold,
The 750W microwave irradiation 23 minutes at 83 DEG C of neon atmosphere, after dried 5 hours at 85 DEG C in air dry oven again, obtain film base
Body；
III carries out ion exchange with potassium bichromate: the film matrix 10g being prepared by step II, which is immersed in temperature, is
28 hours in the aqueous solution 260g for the potassium bichromate that mass fraction at 55 DEG C is 15%, rear take out is washed with water 5 times, is placed on true
It is dried 13.5 hours in 96 DEG C of empty drying box, obtains dichromic acid foundation ionic polymer membranes；
The doping of IV sulfuric acid: the dichromic acid foundation ionic polymer membranes being prepared by step III are impregnated into 10g in quality
26 hours in the dilute sulfuric acid 510g that score is 5%, rear taking-up, which is placed in 96 DEG C of vacuum oven, dries 13.5 hours, obtains detection wine
The polymer film of smart content.
A kind of polymer film detecting alcohol content in saliva, using the polymer film of alcohol content in above-mentioned detection saliva
Preparation method be prepared.
Embodiment 4
A kind of preparation method detecting the polymer film of alcohol content in saliva, includes the following steps:
I modified by vinyl polylysine: 2- chloracrylic acid ethyl ester 10g, polylysine 45g are dissolved in high boiling solvent 143g
In, be stirred at room temperature reaction 7.5 hours, after be precipitated in methylene chloride, revolving remove methylene chloride, obtain modified by vinyl
Polylysine；The high boiling solvent is dimethyl sulfoxide, N-Methyl pyrrolidone, N,N-dimethylformamide 2:3 in mass ratio:
1 mixture mixed；
The preparation of II film matrix: by the modified by vinyl polylysine 20g being prepared by step I, [3- (methyl-prop
Alkene acylamino-)] propyl-dimethyl (3- sulfopropyl) ammonium hydroxide inner salt 10g, vinylbenzenesulfonic acid 5g, 5- vinyl tetrahydro-
2- oxo -3- furancarboxylic acid ethyl ester 10g, 2- trimethylsiloxy group -4- propenyloxy group benzophenone 5g, two carbonic acid of allyl diglycol
Ester 1g, initiator 0.45g, which are dissolved in n,N-Dimethylformamide 245g, forms solution, acquired solution is placed in mold, in argon
Atmosphere encloses 850W microwave irradiation 27 minutes at 88 DEG C, after dried 5.5 hours at 88 DEG C in air dry oven again, obtain film matrix；
The initiator is the mixture that azodiisobutyronitrile, azobisisoheptonitrile 3:5 in mass ratio are mixed；
III carries out ion exchange with potassium bichromate: the film matrix 10g being prepared by step II, which is immersed in temperature, is
30 hours in the aqueous solution 290g for the potassium bichromate that mass fraction at 58 DEG C is 18%, rear take out is washed with water 4 times, is placed on true
It is dried 14.5 hours in 98 DEG C of empty drying box, obtains dichromic acid foundation ionic polymer membranes；
The doping of IV sulfuric acid: the dichromic acid foundation ionic polymer membranes 10g being prepared by step III is immersed in quality
29 hours in the dilute sulfuric acid 550g that score is 6%, rear taking-up, which is placed in 98 DEG C of vacuum oven, dries 14.5 hours, obtains detection wine
The polymer film of smart content.
A kind of polymer film detecting alcohol content in saliva, using the polymer film of alcohol content in above-mentioned detection saliva
Preparation method be prepared.
Embodiment 5
A kind of preparation method detecting the polymer film of alcohol content in saliva, includes the following steps:
I modified by vinyl polylysine: 2- chloracrylic acid ethyl ester 10g, polylysine 50g are dissolved in N-Methyl pyrrolidone
In 150g, be stirred at room temperature reaction 8 hours, after be precipitated in methylene chloride, revolving remove methylene chloride, obtain vinyl and repair
Adorn polylysine；
The preparation of II film matrix: by the modified by vinyl polylysine 20g being prepared by step I, [3- (methyl-prop
Alkene acylamino-)] propyl-dimethyl (3- sulfopropyl) ammonium hydroxide inner salt 10g, vinylbenzenesulfonic acid 5g, 5- vinyl tetrahydro-
2- oxo -3- furancarboxylic acid ethyl ester 10g, 2- trimethylsiloxy group -4- propenyloxy group benzophenone 5g, two carbonic acid of allyl diglycol
Ester 1g, azobisisoheptonitrile 0.5g, which are dissolved in n,N-Dimethylformamide 250g, forms solution, and acquired solution is placed in mold,
The 900W microwave irradiation 30 minutes at 90 DEG C of nitrogen atmosphere, after dried 6 hours at 90 DEG C in air dry oven again, obtain film base
Body；
III carries out ion exchange with potassium bichromate: the film matrix 10g being prepared by step II, which is immersed in temperature, is
32 hours in the aqueous solution 300g for the potassium bichromate that mass fraction at 60 DEG C is 20%, rear take out is washed with water 5 times, is placed on true
It is dried 15 hours in 100 DEG C of empty drying box, obtains dichromic acid foundation ionic polymer membranes；
The doping of IV sulfuric acid: the dichromic acid foundation ionic polymer membranes 10g being prepared by step III is immersed in quality
30 hours in the dilute sulfuric acid 600g that score is 7%, rear taking-up, which is placed in 100 DEG C of vacuum oven, dries 15 hours, obtains detection wine
The polymer film of smart content.
A kind of polymer film detecting alcohol content in saliva, using the polymer film of alcohol content in above-mentioned detection saliva
Preparation method be prepared.
The polymer film performance parameter of alcohol content is examined in the detection saliva that embodiment 1-5 is prepared respectively
It surveys, test method and test result are shown in Table 1.
Table 1
Seen from table 1, what prepared by the embodiment of the present invention detects the mechanical property of the polymer film of alcohol content in saliva, resists
Ultraviolet ageing is excellent, and obvious to the detection color change of alcohol content.
The basic principles, main features and advantages of the present invention have been shown and described above.The technology of the industry
Personnel are it should be appreciated that the present invention is not limited to the above embodiments, and what is described in the above embodiment and the description is only the present invention
Principle, various changes and improvements may be made to the invention without departing from the spirit and scope of the present invention, these variation and
Improvement is both fallen in the range of claimed invention.The present invention claims protection scope by appended claims and its
Equivalent defines.
Claims (9)
1. the preparation method of the polymer film of alcohol content in a kind of detection saliva, which comprises the steps of:
I modified by vinyl polylysine: 2- chloracrylic acid ethyl ester, polylysine are dissolved in high boiling solvent, stirred at room temperature
Mix reaction 6-8 hour, after be precipitated in methylene chloride, revolving removing methylene chloride, obtain modified by vinyl polylysine；
The preparation of II film matrix: modified by vinyl polylysine, [3- (the methacryl ammonia that will be prepared by step I
Base)] propyl-dimethyl (3- sulfopropyl) ammonium hydroxide inner salt, vinylbenzenesulfonic acid, 5- vinyl tetrahydro -2- oxo -3- furan
Mutter carboxylic acid, ethyl ester, 2- trimethylsiloxy group -4- propenyloxy group benzophenone, two carbonic ester of allyl diglycol, initiator is dissolved in N,
Solution is formed in dinethylformamide, acquired solution is placed in mold, at nitrogen or 80-90 DEG C of atmosphere of inert gases
600-900W microwave irradiation 15-30 minutes, after dried 4-6 hours at 80-90 DEG C in air dry oven again, obtain film matrix；
III carries out ion exchange with potassium bichromate: it is 50-60 DEG C that the film matrix being prepared by step II, which is immersed in temperature,
Under mass fraction be 10-20% potassium bichromate aqueous solution in 24-32 hour, rear take out is washed with water 3-5 times, is placed on very
It is dried 10-15 hours in 90-100 DEG C of empty drying box, obtains dichromic acid foundation ionic polymer membranes；
The doping of IV sulfuric acid: it is 3- that the dichromic acid foundation ionic polymer membranes being prepared by step III, which are immersed in mass fraction,
20-30 hours in 7% dilute sulfuric acid, rear taking-up, which is placed in 90-100 DEG C of vacuum oven, dries 10-15 hours, obtains detection alcohol
The polymer film of content.
2. the preparation method of the polymer film of alcohol content in detection saliva according to claim 1, which is characterized in that step
2- chloracrylic acid ethyl ester described in rapid I, polylysine, high boiling solvent mass ratio be 1:(3-5): (10-15).
3. the preparation method of the polymer film of alcohol content in detection saliva according to claim 1, which is characterized in that institute
It states high boiling solvent and is selected from one or more of dimethyl sulfoxide, N-Methyl pyrrolidone, N,N-dimethylformamide.
4. the preparation method of the polymer film of alcohol content in detection saliva according to claim 1, which is characterized in that step
Modified by vinyl polylysine described in rapid I, [3- (methacrylamido)] propyl-dimethyl (3- sulfopropyl) hydroxide
Ammonium inner salt, vinylbenzenesulfonic acid, 5- vinyl tetrahydro -2- oxo -3- furancarboxylic acid ethyl ester, 2- trimethylsiloxy group -4- propylene
Oxygroup benzophenone, two carbonic ester of allyl diglycol, initiator, N,N-dimethylformamide mass ratio be 2:1:0.5:1:
0.5:0.1:(0.03-0.05):(20-25)。
5. the preparation method of the polymer film of alcohol content in detection saliva according to claim 1, which is characterized in that institute
It states initiator and is selected from least one of azodiisobutyronitrile, azobisisoheptonitrile.
6. the preparation method of the polymer film of alcohol content in detection saliva according to claim 1, which is characterized in that institute
It states inert gas and is selected from one of helium, neon, argon gas.
7. the preparation method of the polymer film of alcohol content in detection saliva according to claim 1, which is characterized in that step
Film matrix described in rapid III, potassium bichromate aqueous solution mass ratio be 1:(20-30).
8. the preparation method of the polymer film of alcohol content in detection saliva according to claim 1, which is characterized in that step
Dichromic acid foundation ionic polymer membranes described in rapid IV, dilute sulfuric acid mass ratio be 1:(40-60).
9. prepared by a kind of preparation method using the polymer film of alcohol content in any one of the claim 1-8 detection saliva
The polymer film of alcohol content in obtained detection saliva.
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| CN201811006456.3A CN109187521A (en) | 2018-08-30 | 2018-08-30 | A kind of polymer film and preparation method thereof detecting alcohol content in saliva |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201811006456.3A CN109187521A (en) | 2018-08-30 | 2018-08-30 | A kind of polymer film and preparation method thereof detecting alcohol content in saliva |
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| CN201811006456.3A Withdrawn CN109187521A (en) | 2018-08-30 | 2018-08-30 | A kind of polymer film and preparation method thereof detecting alcohol content in saliva |
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Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4904816A (en) * | 1989-06-15 | 1990-02-27 | American Cyanamid Company | Process for the manufacture of anilinofumarate via chloromaleate or chlorofumarate or mixtures thereof |
-
2018
- 2018-08-30 CN CN201811006456.3A patent/CN109187521A/en not_active Withdrawn
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4904816A (en) * | 1989-06-15 | 1990-02-27 | American Cyanamid Company | Process for the manufacture of anilinofumarate via chloromaleate or chlorofumarate or mixtures thereof |
Non-Patent Citations (2)
| Title |
|---|
| ANJA VALDENAIRE 等: "Evolution of novel tricyclic CRTh2 receptor antagonists from", 《BIOORGANIC & MEDICINAL CHEMISTRY LETTERS》 * |
| SCOTT J.HECKER 等: "Semisynthetic modification of hygromycin A. 1. Synthesis and antibacterial activity of vinyl methyl and amide analogs", 《BIOORGANIC & MEDICINAL CHEMISTRY LETTERS》 * |
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