CN105503753A - Allylamine substituted azole antifungal compound and preparation method and application thereof - Google Patents
Allylamine substituted azole antifungal compound and preparation method and application thereof Download PDFInfo
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- C07D249/02—Heterocyclic compounds containing five-membered rings having three nitrogen atoms as the only ring hetero atoms not condensed with other rings
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Abstract
The invention relates to the technical field of medicine, in particular to a novel azole-alcohol antifungal compound with a chemical structural general formula shown in the description and a preparation method and application. The chemical structural general formula is shown in the description, wherein R is selected from alkyl or halogens or nitryl or a cyano group. The compound has good antifungal activity in various superficial fungi and deep fungi. Compared with an existing antifungal drug applied in clinic, the novel azole-alcohol antifungal compound has the advantages of being efficient, low in toxicity, wide in antifungal spectrum and the like and can be used for preparing antifungal drugs.
Description
Technical field
The present invention relates to medical art, specifically, is that a kind of allyl amine is for azole antifungal compound and preparation method thereof and the application in antimycotic field.
Background technology
Society, along with the extensive application of Broad spectrum antibiotics, immunosuppressor, extensively carrying out of organ transplantation and traumatic treatment measure, the sickness rate of deep fungal infection and case fatality rate are remarkable ascendant trend, and preventing and controlling have become important clinical problem.Triazole type medicine is a clinical application class novel antifungal drugs the most widely, as fluconazole, KETOKONAZOL and Wo Likang azoles etc., but also due to the long-term a large amount of use of this type of antifungal drug in all kinds of patient, the drug resistance problems of fungi is become increasingly conspicuous, therefore the antifungal drug that design and synthesis is new has become the focus in research, especially the synthesis of fluconazole derivative.
Chinese patent 2014102173842 discloses a kind of sulfur-bearing azole antifungal compound, and this compounds has triazole structure too.Those skilled in the art know, and on the right side of triazole class compounds 3 C atoms, linking group all has considerable influence to the physico-chemical property of whole molecule, the pharmacokinetic property of molecule, and the linking group of different structure may have different even contrary pharmacologically active.And about 1-of the present invention (1H-1,2,4-triazol-1-yl)-2-(2,4 difluorophenyl)-3-[N-allyl group amido (substituted benzyl dithio methoxycarbonyl)-]-2-alcohol compound and anti-mycotic activity thereof, yet there are no report.
Summary of the invention
The object of the invention is for deficiency of the prior art, provide a kind of allyl amine for azole antifungal compound.
Of the present invention again one object be provide allyl amine described above for the preparation method of azole antifungal compound.
Another object of the present invention provides allyl amine described above for the purposes of azole antifungal compound.
For achieving the above object, the technical scheme that the present invention takes is:
A kind of allyl amine is for azole antifungal compound, and described allyl amine for azole antifungal compound general structure is:
Wherein R is selected from:
I. halogen; Described halogen is selected from F, Cl or Br, can be positioned at the neighbour of aromatic ring, or contraposition, for monosubstituted;
Ii. alkyl; Described alkyl is the alkyl of 1-4 carbon atom, substituting group can be positioned at aromatic ring neighbour, contraposition, for monosubstituted;
Iii. nitro; Described nitro is positioned at position between aromatic ring, for monosubstituted; Or
Iv. cyano group; Described cyano group be positioned at aromatic ring neighbour, or contraposition, for monosubstituted.
Preferably, described substituent R is selected from:
Halogen; Described halogen is selected from F, Cl or Br, can be positioned at the neighbour of aromatic ring, or contraposition, for monosubstituted.
Preferably, described substituent R is selected from:
Alkyl; Described alkyl is the alkyl of 1-4 carbon atom, substituting group can be positioned at aromatic ring neighbour, contraposition, for monosubstituted.
Preferably, described substituent R is selected from:
Nitro; Described nitro is positioned at position between aromatic ring, for monosubstituted.
Preferably, described substituent R is selected from:
Cyano group; Described cyano group be positioned at aromatic ring neighbour, or contraposition, for monosubstituted.
Preferably, described substituent R is selected from:
For realizing above-mentioned second object, the technical scheme that the present invention takes is:
Allyl amine described above, for the preparation method of azole antifungal compound, comprises the steps:
A) compound 1 and chloroacetyl chloride reacting generating compound 2;
B) compound 2 and triazole reacting generating compound 3;
C) compound 3 and iodate trimethylammonium oxygen reaction of Salmon-Saxl generate compound 4;
D) compound 4 and allylamine reacting generating compound 5;
E) bromobenzyl and CS is replaced
2ice bath reacts, then adds compound 5 and react, and obtains target compound 6.
Described compound 1-6 and reaction scheme as follows:
Preferably, the concrete steps of described preparation method are as follows:
A) there is friedel-crafts reaction and generate compound 2 in compound 1 and chloroacetyl chloride under aluminum trichloride (anhydrous) existent condition;
B) compound 2 and triazole, 3-ethyl benzyl ammonium chloride (TEBA) and salt of wormwood are at CH
2cl
2middle 0-5 DEG C of reaction 5 hours, then room temperature reaction 12 hours, raw compounds 3;
C) compound 3 and iodate trimethylammonium oxygen sulphur, trimethylammonium hexadecyl brometo de amonio, reacting generating compound 4 in toluene and sodium hydroxide;
D) compound 4 and allylamine in ethanol reacting by heating generate compound 5;
E) bromobenzyl and CS is replaced
2ice bath reacts 10 minutes, then adds compound 5 room temperature reaction, obtains target compound 6.
More preferably, described step e) preparation method is as follows:
E) replacement bromobenzyl 0.6mmol and dithiocarbonic anhydride 91.37mg (1.2mmol) is added at 20ml eggplant type bottle, ice bath stirs 10 minutes, then 1-(1H-1 is added, 2,4-triazol-1-yl)-2-(2,4 difluorophenyl)-3-allyl group-2-alcohol 88.29mg (0.3mmol), stir, continue reaction after returning to room temperature, after 9 hours, reaction terminates, and column chromatography purification obtains target compound.
For realizing above-mentioned 3rd object, the technical scheme that the present invention takes is:
As above arbitrary described allyl amine is preparing the application in antifungal drug for azole antifungal compound.
Preferably, described fungi is Candida albicans bacterium, Candida parapsilosis bacterium, Candida glabrata, cryptococcus neoformans, Sabouraudites lanosus, trichophyton or aspergillus fumigatus.
The present invention also provides a kind of antifungal medicine composition, comprises one or more as above arbitrary described compounds for the treatment of significant quantity, and containing customary pharmaceutical excipients, carrier or thinner.
The present invention also provides allyl amine described above for azole antifungal compound pharmaceutically acceptable salt.Described pharmacy acceptable salt is organic acid salt or inorganic acid salt; Wherein mineral acid comprises: hydrochloric acid, sulfuric acid, phosphoric acid, bisphosphate, Hydrogen bromide or nitric acid; Organic acid comprises: acetic acid, toxilic acid, fumaric acid, tartrate, succsinic acid, lactic acid, tosic acid, Whitfield's ointment or oxalic acid.The preparation method of salt can be prepared, as prepared sodium salt with the alkali of the compound containing phenolic hydroxyl group and equimolar amount as NaOH reacts with this area conventional means; Phosphoric acid salt etc. is prepared with the compound containing phenolic hydroxyl group and phosphatase reaction.
The present invention also provides allyl amine described above for the raceme of azole antifungal compound, R type or S type isomer.
The invention has the advantages that:
Compound of the present invention proves to have good anti-mycotic efficiency to deep fungal by pharmacological evaluation, compared with the antifungal drug of existing clinical application, has the advantages such as efficient, hypotoxicity, antimycotic spectrum width, can be used for preparing new antifungal drug.
Embodiment
Below in conjunction with embodiment, set forth the present invention further.Should be understood that these embodiments are only not used in for illustration of the present invention to limit the scope of the invention.In addition should be understood that those skilled in the art can make various changes or modifications the present invention after having read content disclosed by the invention, these equivalent form of values fall within the application's appended claims limited range equally.
The preparation of embodiment 1 the compounds of this invention
The preparation feedback route of the compounds of this invention is as follows:
The first step, synthetic intermediate 4:
Second step, synthetic intermediate 5:
3rd step, synthesising target compound 6:
Particularly, being prepared as follows of the particular compound related in above-mentioned preparation method:
(1) 2-chloro-2 ' is prepared, 4 '-difluoro acetophenone (intermediate 2)
There is friedel-crafts reaction and generate 2-chloro-2 ' in m-difluorobenzene and chloroacetyl chloride, 4 ' difluoro acetophenone (2) under aluminum trichloride (anhydrous) existent condition.
(2) 2-(1H-1,2,4-triazol-1-yl)-2 ' is prepared, 4 '-difluoro acetophenone (intermediate 3)
2-chloro-2 ', 4 '-difluoro acetophenone and triazole, 3-ethyl benzyl ammonium chloride (TEBA) and salt of wormwood are at CH
2cl
2middle 0-5 DEG C of reaction 5 hours, then room temperature reaction 12 hours, generates 2-(1H-1,2,4-triazol-1-yl)-2 ', 4 '-difluoro acetophenone (3).
(3) 1-[2-(2,4 difluorobenzene base)-2,3-epoxypropyl]-1H-1,2,4-triazolium methanesulfonat (intermediate 4) is prepared
2-(1H-1,2,4-triazol-1-yl)-2 ', 4 '-difluoro acetophenone and iodate trimethylammonium oxygen sulphur, trimethylammonium hexadecyl brometo de amonio, in toluene and sodium hydroxide, reaction generates 1-[2-(2,4-difluorophenyl)-2,3-epoxypropyl]-1H-1,2,4-triazolium methanesulfonat (4).
(4) 1-(1H-1,2,4-triazol-1-yl)-2-(2,4 difluorophenyl)-3-(N-allyl group) amido-2-alcohol (intermediate 5) is prepared
Intermediate 4 and allylamine reacting by heating in ethanol, generates 1-(1H-1,2,4-triazol-1-yl)-2-(2,4 difluorophenyl)-3-(N-allyl group) amido-2-alcohol (5).
(5) target compound is prepared
Replace bromobenzyl and CS
2ice bath reacts 10 minutes, then adds intermediate 5 room temperature reaction, generates target compound.
Objectives compound 1-18 preparation method is as follows:
1, target compound 1:1-(1H-1,2,4-triazol-1-yl)-2-(2,4 difluorophenyl)-3-[N-allyl group amido (benzyl dithio methoxycarbonyl)]-2-alcohol is prepared; Take bromobenzyl as raw material, concrete preparation method is with the preparation of compound 2.
2, target compound 2:1-(1H-1,2,4-triazol-1-yl)-2-(2,4 difluorophenyl)-3-[N-allyl group amido (2-luorobenzyl dithio methoxycarbonyl)]-2-alcohol is prepared:
A) intermediate 2-5 is prepared with reference to aforesaid method;
B) 20ml eggplant type bottle adds 2-fluorine bromobenzyl 113.41mg (0.6mmol) and dithiocarbonic anhydride 91.37mg (1.2mmol), ice bath stirs 10 minutes, then 1-(1H-1 is added, 2, 4-triazol-1-yl)-2-(2, 4 difluorophenyls)-3-allyl group-2-alcohol 88.29mg (0.3mmol), stir, reaction is continued after returning to room temperature, after 9 hours, reaction terminates, column chromatography purification obtains 1-(1H-1, 2, 4-triazol-1-yl)-2-(2, 4 difluorophenyls)-3-[N-allyl group amido (2-luorobenzyl dithio methoxycarbonyl)]-2-alcohol 49mg, productive rate 34.1%.
3, target compound 3:1-(1H-1,2,4-triazol-1-yl)-2-(2,4 difluorophenyl)-3-[N-allyl group amido (3-luorobenzyl dithio methoxycarbonyl)]-2-alcohol is prepared; With 3-fluorine bromobenzyl for raw material, concrete preparation method is with the preparation of compound 2.
4, target compound 4:1-(1H-1,2,4-triazol-1-yl)-2-(2,4 difluorophenyl)-3-[N-allyl group amido (4-luorobenzyl dithio methoxycarbonyl)]-2-alcohol is prepared; With 4-fluorine bromobenzyl for raw material, concrete preparation method is with the preparation of compound 2.
5, target compound 5:1-(1H-1,2,4-triazol-1-yl)-2-(2,4 difluorophenyl)-3-[N-allyl group amido (3-chlorobenzyl dithio methoxycarbonyl)]-2-alcohol is prepared; With 3-chlorine bromobenzyl for raw material, concrete preparation method is with the preparation of compound 2.
6, target compound 6:1-(1H-1,2,4-triazol-1-yl)-2-(2,4 difluorophenyl)-3-[N-allyl group amido (4-chlorobenzyl dithio methoxycarbonyl)]-2-alcohol is prepared; With 4-chlorine bromobenzyl for raw material, concrete preparation method is with the preparation of compound 2.
7, target compound 7:1-(1H-1,2,4-triazol-1-yl)-2-(2,4 difluorophenyl)-3-[N-allyl group amido (2-bromobenzyl dithio methoxycarbonyl)]-2-alcohol is prepared; With 2-bromine bromobenzyl for raw material, concrete preparation method is with the preparation of compound 2.
8, target compound 8:1-(1H-1,2,4-triazol-1-yl)-2-(2,4 difluorophenyl)-3-[N-allyl group amido (3-bromobenzyl dithio methoxycarbonyl)]-2-alcohol is prepared; With 3-bromine bromobenzyl for raw material, concrete preparation method is with the preparation of compound 2.
9, target compound 9:1-(1H-1,2,4-triazol-1-yl)-2-(2,4 difluorophenyl)-3-[N-allyl group amido (4-bromobenzyl dithio methoxycarbonyl)]-2-alcohol is prepared; With 4-bromine bromobenzyl for raw material, concrete preparation method is with the preparation of compound 2.
10, target compound 10:1-(1H-1,2,4-triazol-1-yl)-2-(2,4 difluorophenyl)-3-[N-allyl group amido (3-methyl-benzyl dithio methoxycarbonyl)]-2-alcohol is prepared; With 3-methyl bromobenzyl for raw material, concrete preparation method is with the preparation of compound 2.
11, target compound 11:1-(1H-1,2,4-triazol-1-yl)-2-(2,4 difluorophenyl)-3-[N-allyl group amido (4-methyl-benzyl dithio methoxycarbonyl)]-2-alcohol is prepared; With 4-methyl bromobenzyl for raw material, concrete preparation method is with the preparation of compound 2.
12, target compound 12:1-(1H-1,2,4-triazol-1-yl)-2-(2,4 difluorophenyl)-3-[N-allyl group amido (3-nitrobenzyl dithio methoxycarbonyl)]-2-alcohol is prepared; With 3-nitro bromobenzyl for raw material, concrete preparation method is with the preparation of compound 2.
13, target compound 13:1-(1H-1,2,4-triazol-1-yl)-2-(2,4 difluorophenyl)-3-[N-allyl group amido (2-cyanobenzyls dithio methoxycarbonyl)]-2-alcohol is prepared; With 2-cyano-benzyl bromide for raw material, concrete preparation method is with the preparation of compound 2.
14, target compound 14:1-(1H-1,2,4-triazol-1-yl)-2-(2,4 difluorophenyl)-3-[N-allyl group amido (3-cyanobenzyls dithio methoxycarbonyl)]-2-alcohol is prepared; With 3-cyano-benzyl bromide for raw material, concrete preparation method is with the preparation of compound 2.
15, target compound 15:1-(1H-1,2,4-triazol-1-yl)-2-(2,4 difluorophenyl)-3-[N-allyl group amido (4-cyanobenzyls dithio methoxycarbonyl)]-2-alcohol is prepared; With 4-cyano-benzyl bromide for raw material, concrete preparation method is with the preparation of compound 2.
16, target compound 16:1-(1H-1,2,4-triazol-1-yl)-2-(2,4 difluorophenyl)-3-[N-allyl group amido (4-t-butylbenzyl dithio methoxycarbonyl)]-2-alcohol is prepared; With 4-tertiary butyl bromobenzyl for raw material, concrete preparation method is with the preparation of compound 2.
17, target compound 17:1-(1H-1,2,4-triazol-1-yl)-2-(2,4 difluorophenyl)-3-[N-allyl group amido (4-isopropyl benzyl dithio methoxycarbonyl)]-2-alcohol is prepared; With 4-sec.-propyl bromobenzyl for raw material, concrete preparation method is with the preparation of compound 2.
18, target compound 18:1-(1H-1,2,4-triazol-1-yl)-2-(2,4 difluorophenyl)-3-[N-allyl group amido (2,6-dichloro benzyl dithio methoxycarbonyl)]-2-alcohol is prepared; With 2,6-dichloro bromobenzyl for raw material, concrete preparation method is with the preparation of compound 2.
It should be noted that, when preparing all the other target compounds, adopt the replacement bromobenzyl of corresponding R group as raw material, method is the same.In the embodiment of the present invention, agents useful for same is commercially available analytical pure.The chemical structure of the compound more than prepared, productive rate, nucleus magnetic hydrogen spectrum data are as follows:
The chemical structure of table 1 part of compounds, productive rate and molecular formula
Enforcement of the present invention is not limited to above embodiment, and in table 1, all the other target compounds all synthesize by above method.
The pharmacological evaluation of embodiment 2 the compounds of this invention
The present invention synthesizes 1-(1H-1,2,4-triazol-1-yl)-2-(2,4 difluorophenyl)-3-[N-allyl group amido (substituted benzyl dithio methoxycarbonyl)]-2-alcohol compound has antifungic action, and its pharmacological evaluation is as follows:
(1) experimental technique: adopt conventional antibacterial experiment in vitro method (referring to: AntimicrobAgentsChemother1995,39 (5): 1169)
1. materials and methods
(1) experimental strain
This experiment has selected following 8 kinds of common human body cause illness's standard fungal bacterial strains as screening object:
Table 2 anti-mycotic activity in-vitro screening strain subject
| Strain name | Species | Strain number |
| Candida albicans bacterium | Candida albicans | Y0109 |
| Candida albicans bacterium | Candida albicans | SC5314 |
| Candida parapsilosis bacterium | Candida parapsilosis | ATCC 22019 |
| Candida glabrata | Candida glabrata | 537 |
| Cryptococcus neoformans | cryptococcus neoformans | 32609 |
| Gypsum shape sporidiole bacteria | Microsporum gypseum | Cmccfmza |
| Trichophyton | Trichophyton rubrum | Cmccftla |
| Aspergillus fumigatus | Aspergillus fumigatus | 07544 |
(2) test method
Bacteria suspension is prepared: above-mentioned fungi is cultivated 16 hours through YEPD liquid nutrient medium 35 DEG C, twice activation, with blood cell counting plate counting, with RPM1640 liquid nutrient medium adjustment bacteria concentration to 1 × 10
4~ 1 × 10
5individual/mL.
Drug solution preparing: get testing compound of the present invention and be dissolved in methyl-sulphoxide, is made into the medicament storage liquid of 8.0mg/mL, tests front RPM1640 and is diluted to 640 μ g/mL.
Inoculation: get drug sensitive plate, adding RPMI1640 nutrient solution 200 μ l in often arranging No. 1 hole, making blank; No. 12 holes add bacterium liquid 200 μ l to be measured, make negative control; Drug sensitive plate is often arranged 2-11 hole and is added bacterium liquid 180 μ l respectively, fully mixes, and make the final drug level in each hole be respectively 64,32,16,8,4,2,1,0.5,0.25 and 0.125 μ g/ml, in each hole, DMSO content is all lower than 1%; No. 12 hole not drug containing, make positive control.Control drug is fluconazole (FCZ), itraconazole (ICZ), voriconazole (VCZ), KETOKONAZOL (KCZ), Terbinafine (TBR), amphotericin B (AMB).
Cultivate and detect: set Positive control wells optical density value (OD value) as 100%, with optical density value than Positive control wells lower than 80% lowest concentration of drug for minimal inhibitory concentration value (MIC
80).
(2) experimental result
Antibacterial experiment in vitro the results are shown in Table 3.
Table 3 part preferred compound is to common causative fungi external activity (MIC
80, μ g/ml)
Note: KCZ. KETOKONAZOL, FCZ. fluconazole, VCZ. Wo Likang azoles, ICZ. itraconazole, TRB. terbinafine, AMB amphotericin
Above-mentioned experimental result shows that compound of the present invention has good anti-mycotic activity, and the vitro inhibition activity of multiple compound to selected fungi is all far better than fluconazole, illustrates that the compounds of this invention can be used for preparing the medicine of anti-fungal infection.
The above is only the preferred embodiment of the present invention; it should be pointed out that for those skilled in the art, under the prerequisite not departing from the inventive method; can also make some improvement and supplement, these improve and supplement and also should be considered as protection scope of the present invention.
Claims (10)
1. allyl amine is for an azole antifungal compound, it is characterized in that, described allyl amine for azole antifungal compound general structure is:
Wherein R is selected from:
I. halogen, described halogen is selected from F, Cl or Br, is positioned at the ortho position of aromatic ring, a position or contraposition, for monosubstituted;
Ii. alkyl, described alkyl is the alkyl of 1-4 carbon atom, is positioned at the ortho position of aromatic ring, a position or contraposition, for monosubstituted;
Iii. nitro, described nitro is positioned at position between aromatic ring, for monosubstituted; Or
Iv. cyano group, described cyano group is positioned at the ortho position of aromatic ring, a position or contraposition, for monosubstituted.
2. allyl amine according to claim 1 is for azole antifungal compound, it is characterized in that, described substituent R is selected from:
Halogen, described halogen is selected from F, Cl or Br, is positioned at the ortho position of aromatic ring, a position or contraposition, for monosubstituted.
3. allyl amine according to claim 1 is for azole antifungal compound, it is characterized in that, described substituent R is selected from:
Alkyl, described alkyl is the alkyl of 1-4 carbon atom, is positioned at the ortho position of aromatic ring, a position or contraposition, for monosubstituted.
4. allyl amine according to claim 1 is for azole antifungal compound, it is characterized in that, described substituent R is selected from:
Nitro, described nitro is positioned at position between aromatic ring, for monosubstituted; Or
Cyano group, described cyano group is positioned at the ortho position of aromatic ring, a position or contraposition, for monosubstituted.
5. allyl amine according to claim 1 is for azole antifungal compound, it is characterized in that, described substituent R is selected from as follows:
6. the arbitrary described allyl amine of claim 1-5 is for the preparation method of azole antifungal compound, it is characterized in that, comprises the steps:
A) compound 1 and chloroacetyl chloride reacting generating compound 2;
B) compound 2 and triazole reacting generating compound 3;
C) compound 3 and iodate trimethylammonium oxygen reaction of Salmon-Saxl generate compound 4;
D) compound 4 and allylamine reacting generating compound 5;
E) bromobenzyl and CS is replaced
2ice bath reacts, then adds compound 5 and react, and obtains target compound 6;
Described compound 1-6 structure is as follows:
7. preparation method according to claim 6, is characterized in that, the concrete steps of described preparation method are as follows:
A) there is friedel-crafts reaction and generate compound 2 in compound 1 and chloroacetyl chloride under aluminum trichloride (anhydrous) existent condition;
B) compound 2 and triazole, 3-ethyl benzyl ammonium chloride (TEBA) and salt of wormwood are at CH
2cl
2middle 0-5 DEG C of reaction 5 hours, then room temperature reaction 12 hours, raw compounds 3;
C) compound 3 and iodate trimethylammonium oxygen sulphur, trimethylammonium hexadecyl brometo de amonio, reacting generating compound 4 in toluene and sodium hydroxide;
D) compound 4 and allylamine in ethanol reacting by heating generate compound 5;
E) bromobenzyl and CS is replaced
2ice bath reacts 10 minutes, then adds compound 5 room temperature reaction, obtains target compound 6.
8. the arbitrary described allyl amine of claim 1-5 is preparing the application in antifungal drug for azole antifungal compound.
9. application according to claim 8, is characterized in that, described fungi is Candida albicans bacterium, Candida parapsilosis bacterium, Candida glabrata, cryptococcus neoformans, Sabouraudites lanosus, trichophyton or aspergillus fumigatus.
10. an antifungal medicine composition, is characterized in that, comprises the arbitrary described compound of one or more claim 1-5 for the treatment of significant quantity, and containing customary pharmaceutical excipients, carrier or thinner.
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|---|---|---|---|---|
| CN117417335A (en) * | 2023-10-17 | 2024-01-19 | 沈阳药科大学 | Azole derivative containing piperazine structure, and preparation method and application thereof |
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