CN104098643B - Close the diethylamine derivative of flowers and trees ketone Cleistanone, preparation method and its usage - Google Patents
Close the diethylamine derivative of flowers and trees ketone Cleistanone, preparation method and its usage Download PDFInfo
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Abstract
The present invention relates to organic synthesis and medicinal chemistry art, be specifically related to close flowers and trees ketone Cleistanone derivative, preparation method and the purposes in preparation antibacterials thereof.The present invention has synthesized one and new has closed flowers and trees ketone Cleistanone derivative, and discloses its preparation method.Pharmacological experiment shows, the flowers and trees ketone Cleistanone derivative that closes of the present invention has antibacterial effect, has the value of exploitation antibacterials.
Description
Technical field
The present invention relates to organic synthesis and medicinal chemistry art, be specifically related to close flowers and trees ketone Cleistanone derivative, preparation method and its usage.
Background technology
The health and lives of the mankind in the diffusion of pathogenic bacterium and the enhancing serious threat of resistance thereof, antibacterials are widely used in acquired immune deficiency syndrome (AIDS) as routine administration, organ transplantation and chronic wasting disease are (as cancer, diabetes, uremia etc.) treatment, although the antimicrobial agent used clinically is at present (as KETOKONAZOL, amikacin, gentamicin, voriconazole, itraconazole, Terbinafine, amphotericin, fluconazole etc.) better to the curative effect of skin and superficial place infection, but the cumulative toxicity of these antibacterials is stronger, usually cause lesions of liver and kidney, digestive tube stimulates, dizzy, irritated etc., so the novel antibacterial medicine finding mechanism of action uniqueness becomes one of focus of current medicament research and development.
Helicobacter pylori (Helicobacterpylori, Hp) is a kind of Gram-negative spiral bacteria.Research display, helicobacter pylori is the primary pathogenic event of acute and chronic gastritis and taste-blindness rate, and may fall ill relevant with cancer of the stomach and stomach mucous membrane associated lymphoid sample tissue (MALT) malignant lymphoma.Recently, Hp is classified as I class carcinogens by the World Health Organization, and it plays a leading role in stomach cancer development.Treatment H popular at present
psimultaneously the scheme infected takes the triple therapy that proton pump inhibitor (PPI) adds two kinds of microbiotic (clarithromycin, amoxycilline Trihydrate bp, tsiklomitsin, metronidazole etc. select two kinds).The main factor affecting triple therapy is considered to the resistance of Hp to antiseptic-germicide; Another serious problems are that proton pump inhibitor can bring out maldigestion, and a large amount of antiseptic-germicide then causes the serious destruction of flora in digestive tube.Therefore, find the active kind new medicine thing of efficient, safe anti-Hp and become an important and urgent task.
Global morbidity lungy is in increasing trend in recent years, estimate according to the World Health Organization (WHO), the current whole world is by mycobacterium tuberculosis (Mycobacteriumtuberculosis, MTB) population infected accounts for 1/3rd of world population, and wherein the infected of 5 ~ 10% becomes tuberculosis patient.There is active tuberculosis patient 1,300,000 example in China, wherein infectivity pulmonary tuberculosis about 600,000 example every year, wherein infectivity pulmonary tuberculosis about 600,000 example, is one of global tuberculosis high burden country.
Come out one after another from antitubercular agent, make treatment lungy play epoch-making change.But due to the Case management still not very specification of tuberculosis patient, irregular chemotherapy, abuse antitubercular agent, makes drug resistance of tuberculosis situation day by day serious, and the change of resistance more trends towards multi-medicament resistance simultaneously, this causes extreme difficulties to preventing and controlling lungy.Therefore find new antitubercular agent, the antitubercular agent of especially anti-multidrug resistance is to protection people's health, significant.
From natural product, find compound or lead compound and carry out structural modification and obtain its derivative, thus the potential drug obtaining high-efficiency low-toxicity there is important value most.
The compound that the present invention relates to closes flowers and trees ketone Cleistanone and is one and delivers (VanTrinhThiThanhetal., 2011.Cleistanone:ATriterpenoidfromCleistanthusindochinen siswithaNewCarbonSkeleton. in 2011
volume2011, Issue22,pages4108 – 4111, August2011) compound, we close flowers and trees ketone Cleistanone to compound and have carried out structural modification, obtain one and new close flowers and trees ketone Cleistanone derivative, and its anti-microbial activity is evaluated, it has anti-microbial activity.
Summary of the invention
The invention discloses one and close flowers and trees ketone Cleistanone derivative, its structure is:
The present invention closes flowers and trees ketone Cleistanone derivative (III) by method preparation below:
(1) close flowers and trees ketone Cleistanone (I) and be obtained by reacting with glycol dibromide the O-bromotrifluoromethane derivative (II) closing flowers and trees ketone Cleistanone;
(2) the O-bromotrifluoromethane derivative (II) closing flowers and trees ketone Cleistanone closes flowers and trees ketone Cleistanone derivative (III) with diethylamine generation substitution reaction is obtained.
The preparation method further closing flowers and trees ketone Cleistanone derivative (III) is:
(1) 440mg compound is closed flowers and trees ketone Cleistanone (I) and be dissolved in 10mL benzene, in solution, add the Tetrabutyl amonium bromide of 0.04g, the glycol dibromide of 3.760g and 50% sodium hydroxide solution of 6mL; Mixture stirs 24h at 25 degrees Celsius; After 24h, reaction solution is poured in frozen water, use dichloromethane extraction twice immediately, merge organic phase solution; Then use water and saturated common salt water washing 3 times successively to organic phase solution, then use anhydrous sodium sulfate drying, last concentrating under reduced pressure is removed solvent and is obtained product crude product; Product crude product purification by silica gel column chromatography, moving phase is: sherwood oil/acetone=100:1, v/v, collects the yellow yellow solid concentrating elution band namely to obtain the O-bromotrifluoromethane derivative (II) closing flowers and trees ketone Cleistanone.
(2) the O-bromotrifluoromethane derivative closing flowers and trees ketone Cleistanone of 273mg is dissolved in the middle of 20mL acetonitrile, adds the Anhydrous potassium carbonate of 345mg wherein, the potassiumiodide of 84mg and the diethylamine of 1460mg, mixture reflux 8h; After reaction terminates, reaction solution is poured in frozen water, with equivalent dichloromethane extraction three times, merge organic phase; Organic phase after merging with water and saturated common salt water washing successively, then use anhydrous sodium sulfate drying, concentrating under reduced pressure is removed solvent and is obtained product crude product; Product crude product purification by silica gel column chromatography, moving phase is: sherwood oil/acetone=100:1, v/v, collects the faint yellow colloidal solid that namely faint yellow concentrated elution band obtains closing flowers and trees ketone Cleistanone derivative (III).
Compound disclosed by the invention can make pharmacy acceptable salt or pharmaceutically acceptable carrier.
Pharmacodynamic experiment shows, flowers and trees ketone Cleistanone derivative (III) that closes of the present invention has good anti-microbial effect.Pharmacy acceptable salt of the present invention has same drug effect with its compound.
Further, the experiment in vitro of compound III shows, chemicals III has very strong human body fungi activity, and therefore chemicals III of the present invention is expected to be used to prepare novel anti-human fungi medicine.
Further, the experiment in vitro of compound III shows, compound III has very strong anti Helicobacter pylori activity, illustrate for the diseases such as the closely-related acute and chronic gastritis of Hp, duodenal ulcer, compound III is the compound of a great exploitation potential for its.It can be directly used in the treatment of corresponding disease and the preparation of related drugs.
Further, the experiment in vitro of compound III shows, compound III has the effect of very strong suppression intestinal bacteria, fluorescent pseudomonas, Staphylococcus aureus, Bacillus proteus, cryptococcus neoformans, so compound III can be used as the compound with antibacterial actions, and be expected to be applied preparing in anti-bacterial drug.
Further, according to the result of tentative experiment, the present invention with solid medium By Dilution this compound to the minimal inhibitory concentration of bacille Calmette-Guerin vaccine, the H37Rv strain of mycobacterium tuberculosis type strain and substance of medicines-resistant branched tubercle bacillus (MDRMTB) three kinds of tubercule bacilluss, experimental result confirms that compound III has very strong anti-tubercle bacillus and anti-drug resistance tubercule bacillus is active, can be used as the lead compound for the treatment of tubercle bacillus affection disease, also can be used for preparation treatment tubercular drugs.
The present invention is further detailed explanation by the following examples, but protection scope of the present invention is not by any restriction of specific embodiment, but be limited by claim.
Embodiment
Embodiment 1 compound closes the preparation of flowers and trees ketone Cleistanone
Document (the VanTrinhThiThanhetal. that the preparation method that compound closes flowers and trees ketone Cleistanone (I) delivers with reference to people such as VanTrinhThiThanh, 2011.Cleistanone:ATriterpenoidfromCleistanthusindochinen siswithaNewCarbonSkeleton.Volume2011, Issue22, pages4108 – 4111, August2011) method.
Embodiment 2 closes the synthesis of the O-bromotrifluoromethane derivative (II) of flowers and trees ketone Cleistanone
By Compound I (440mg, 1.00mmol) be dissolved in 10mL benzene, add in solution Tetrabutyl amonium bromide (TBAB) (0.04g), 1,50% sodium hydroxide solution of 2-ethylene dibromide (3.760g, 20.00mmol) and 6mL.Mixture stirs 24h at 25 degrees Celsius.After 24h, reaction solution is poured in frozen water, use dichloromethane extraction twice immediately, merge organic phase solution.Then use water and saturated common salt water washing 3 times successively to organic phase solution, then use anhydrous sodium sulfate drying, last concentrating under reduced pressure is removed solvent and is obtained product crude product.Product crude product purification by silica gel column chromatography (moving phase is: sherwood oil/acetone=100:1, v/v), collects the yellow yellow solid (344mg, 63%) concentrating elution band namely to obtain Compound II per.
1HNMR(500MHz,DMSO-d
6)δ5.04(s,1H),4.82(s,1H),3.94(d,J＝26.5Hz,1H),3.87(d,J＝26.5Hz,2H),3.57(s,2H),2.40(d,J＝14.0Hz,1H),2.39(d,J＝14.0Hz,1H),2.27(s,1H),2.21(s,1H),2.15(s,1H),1.82(s,1H),1.62(s,2H),1.57(d,J＝3.3Hz,1H),1.54(d,J＝3.3Hz,1H),1.50(d,J＝1.2Hz,1H),1.47(d,J＝1.2Hz,1H),1.39(d,J＝15.3Hz,2H),1.34(d,J＝15.3Hz,1H),1.26(dd,J＝32.6,13.7Hz,4H),1.13(d,J＝18.0Hz,2H),1.05(s,6H),0.98(s,1H),0.88(s,12H),0.78(s,3H),0.74(s,1H)。
13CNMR(125MHz,DMSO-d6)δ216.59(s),154.50(s),105.23(s),74.63(s),69.85(s),59.71(s),52.55(s),51.21(s),47.92(s),44.10(s),42.25(s),41.73(s),40.64(s),40.16(s),38.88(s),38.65(s),37.21(s),36.23(s),33.34(d,J＝1.1Hz),32.96(s),29.91(s),27.18(s),26.03(s),24.23(s),23.96(s),20.77(s),18.48(s),17.98(s),16.93(s)。
HRMS(ESI)m/z[M+H]
+calcdforC
32H
52BrO
2:547.3151；found547.3159.
Embodiment 3 closes the synthesis of O-(diethylin) ethyl derivative (III) of flowers and trees ketone Cleistanone
Compound II per (273mg, 0.5mmol) is dissolved in the middle of 20mL acetonitrile, adds Anhydrous potassium carbonate (345mg wherein, 2.5mmol), potassiumiodide (84mg, 0.5mmol) and diethylamine (1460mg, 20mmol), mixture reflux 8h.After reaction terminates, reaction solution is poured in frozen water, with equivalent dichloromethane extraction three times, merge organic phase.Organic phase after merging with water and saturated common salt water washing successively, then use anhydrous sodium sulfate drying, concentrating under reduced pressure is removed solvent and is obtained product crude product.Product crude product purification by silica gel column chromatography (moving phase is: sherwood oil/acetone=100:1, v/v), collects the faint yellow colloidal solid (169.8mg, 63%) that namely faint yellow concentrated elution band obtains compound III.
1HNMR(500MHz,DMSO-d6)δ5.04(s,1H),4.85(s,1H),4.37(s,1H),3.54(s,2H),2.91(s,4H),2.64(s,2H),2.41(d,J＝17.2Hz,2H),2.30(s,1H),2.21(d,J＝22.5Hz,2H),1.82(s,1H),1.65(s,2H),1.58(d,J＝9.0Hz,2H),1.49(d,J＝5.7Hz,2H),1.39(d,J＝13.4Hz,3H),1.36–1.28(m,3H),1.28–1.26(m,1H),1.26–1.14(m,8H),1.06(s,6H),0.92(d,J＝19.4Hz,13H),0.82(s,3H),0.71(s,1H).
13CNMR(125MHz,DMSO-d6)δ216.59(s),154.50(s),105.23(s),74.65(s),66.82(s),59.77(s),52.54(d,J＝3.0Hz),51.21(s),47.92(s),47.73(s),44.13(s),42.30(s),41.77(s),40.65(s),40.17(s),38.86(s),38.68(s),37.26(s),36.27(s),33.35(s),32.97(s),29.89(s),27.21(s),26.08(s),24.27(s),23.97(s),20.78(s),18.46(s),18.01(s),16.98(s),12.33(s).
HRMS(ESI):m/z[M+H]
+calcdforC
36H
62NO
2:540.4781；found:540.4787。
Embodiment 4 compound III anti-helicobactor pylori activity
1) strains tested
Helicobacter pylori (Helicobacterpylori, Hp) reference culture ATCC43504 is purchased from U.S.'s Culture Collection (AmericanTypeCultureCollection, ATCC).12 strain Hp clinical strains are picked up from Nanjing drum tower hospital Dndoscope Laboratory and are accepted gastroscopic patient; To the patient of peptide ulceration, duodenal bulbar inflammation or gastritis verrucosa in continuous gastroscopy, first be defined as Hp positive through RUT experiment, get antral gastric mucosa 1-2 block again, be inoculated in containing 8% horse serum, trimethoprim (trimethropin after chopping, in the Columbia selectivity nutrient agar of TMP) 1.25g/L, polymyxin (polymyxin) B2500U/L, vancomycin (vancomycin) 10mg/L, in 37 DEG C of (5%O under micro-oxygen environment
2, 10%CO
2and 85%N
2) cultivate 72 hours.Collect bacterium, through smear gramstaining, after oxydase, catalase and urease are accredited as the positive, pure culture of going down to posterity, obtained strains is as experimental strain.
2) strain culturing
We adopt micro-aerobic bag (purchased from Shanghai Medical Univ) to carry out the strain culturing of HP, and it produces the micro-aerobic environment required for Hp by chemical reaction.
3) biological activity determination
Paper disk method (Microbiologicalpapermethod) is adopted to measure the restraining effect of compound to helicobacter pylori, the minimum inhibitory concentration (minimalinhibitoryconcentration, MIC) of test sample is measured with agar dilution.
I. paper disk method experiment
(A) substratum is prepared by the Columbia substratum for preparing after high pressure steam sterilization, be cooled to 50-60 DEG C, add 8% horse serum or Sheep Blood, mixing is poured in the culture dish of sterilizing, every ware 7-10ml, substratum thickness is 1.5mm (aseptic technique).
(B) experimental bacteria of transferring (being coated with bacterium) gets diluted 10 with microscale sampler
8cFU/ml (1OD
660=10
8cFU/ml) the bacteria suspension 0.1ml of Hp spreads upon suitable culture dish surface equably.Be inverted in 37 DEG C of drying bakers and take out after 15min, object makes agar surface dry, for subsequent use.
(C) paste sample scraps of paper microscale sampler to get 6 μ l testing samples (mass concentration 2mg/ml) and inject on the round filter paper of sterilizing.With aseptic nipper tweezer containing the scraps of paper of sample and the blank scraps of paper of contrast, by aseptic technique respectively the scraps of paper be close to containing bacterio-agar surface, paste a piece of paper sheet at a certain distance.Often kind of bacterium is cooked 3 wares, and acquired results asks its mean value.
(D) cultivate each plate is placed in micro-aerobic bag, sealing, opens producer gas generator, then is placed in 37 DEG C of incubators and cultivates 72h.
(E), after surveying antibacterial circle diameter taking-up flat board, the size of antibacterial circle diameter around each scraps of paper is measured respectively.With reference to the result of control group, the result of testing sample sensitive experiment can be drawn.In triplicate.
II. agar dilution measures MIC
(A) first compound dimethyl sulfoxide (DMSO) (DMSO) solution preparation of test is become the mother liquor of 0.5mg/ml by the preparation of Drug plates, then with sterilized water dilution, is finally made into 100.0,80.0,60.0,45.0,40.0,35.0,30.0,25.0,20.0,15.0,10.0, the concentration series of 5.0 and 2.5 μ g/ml, DMSO concentration is in media as well less than 1%.The test compounds solution that 1ml is prepared be incubated 8ml Columbia medium in 50 DEG C, separately add the horse serum that 1ml is incubated in 50 DEG C and fully mix, cast in culture dish cool (in culture dish, the final concentration of chemicals is 10.0,8.0,6.0,4.5,4.0,3.5,3.0,2.5,2.0,1.5,1.0,0.5 and 0.25 μ g/ml, if there is bacteriostatic action, then MIC value namely these worthwhile in one).
(B) experimental bacteria of transferring (being coated with bacterium) draws diluted 1 × 10 with microscale sampler
8the bacteria suspension 0.1ml of CFU/mlHp spreads upon culture dish surface equably, is inverted in 37 DEG C of drying bakers and takes out after 15min, and object makes agar surface dry, for subsequent use.
(C) determine that test dish (contains: 85%N at micro-aerobic bag by MIC
2, 10%CO
2and 5%O
2) in, be incubated 37 DEG C and cultivate 72 hours, observe Hp growing state, contrast with blank group, there is no the sample minimum concentration of bacteria growing completely for minimum inhibitory concentration (minimalinhibitoryconcentration, MIC) value.Positive control is Ampicillin Trihydrate (Ampicillin).
Experimental result
Experiment in vitro shows, chemicals III has very strong anti Helicobacter pylori activity, and it is 21mm (ATCC43504) that paper disk method shows its antibacterial circle diameter.With agar dilution display, it can suppress the growth of 5 random clinical strains and 1 reference culture (ATCC43504) completely, and minimal inhibitory concentration (MIC) is 1.5 μ g/ml.Make positive control with Ampicillin Trihydrate, its Cmin (MIC) suppressed completely 6 strain test bacterium is 1.0 μ g/ml.
Conclusion: it is active that chemicals III has stronger suppression Hp, illustrate for the disease such as the closely-related acute and chronic gastritis of Hp, duodenal ulcer, chemicals III is the compound of a great exploitation potential for its.It can be directly used in the treatment of corresponding disease and the preparation of related drugs.
Embodiment 5 chemicals III antibacterial activity
Antibacterial activity test is the method adopting concentration dilution, and in triplicate, test pathogenic bacteria has intestinal bacteria, fluorescent pseudomonas, Staphylococcus aureus, Bacillus proteus, cryptococcus neoformans to each mensuration, and bacterial concentration is 10
5individual/mL.Compound III initial concentration is 50.00 μ g/mL (5% dimethyl sulfoxide (DMSO) DMSO), gradient dilution to 0.10 μ g/mL, the bacterium liquid of equivalent volumes and test sample mixed culture (ultimate density of formation has: 25.00,12.50,6.25,3.13,1.56,0.78,0.39,0.20,0.10 and 0.05 μ g/mL) in 96 orifice plates, microbial culture temperature is respectively 37 DEG C, observe after incubation time 24h, if find, in the disposal hole not having bacterium colony to be formed, that minimum concentration is sample lowest concentration of antimicrobial, i.e. MIC value.Compound III the anti-bacterial result is in table 1.
Table 1 compound III antibacterium MIC value (μ g/mL)
Conclusion: compound III has very strong antibacterial activity, therefore compound III of the present invention is expected to be used to prepare novel anti-bacterial drug.
Embodiment 6 compound III anti-tubercle bacillus is active
(1) the anti-bacille Calmette-Guerin vaccine of solid medium By Dilution compound III (BCG) absolute concentration
Scraping BCG cultures from inclined-plane, joins in 3mlMiddlebrook7H9 broth culture,
Add a small amount of granulated glass sphere, screw test tube cap, in vortex oscillator, high vibration grinding, with standard Maxwell opacity tube (MacFarlandNo.1) than turbid, is namely made into bacille Calmette-Guerin vaccine (BCG) bacteria suspension of 1mg/ml.
Compound III DMSO is made into the stoste of high density, by the tween-80 aseptic ultrapure water dilution stoste containing 5% to desired concn, the compound III of having diluted is joined 4mlMiddlebrook7H11 nutrient agar (this substratum 121 DEG C of high pressure steam sterilizations 15 minutes, be cooled to 50 ~ 55 DEG C) by required dosage, mixing, make containing compound III, concentration is respectively 6.0ug/ml, 4.0ug/ml, 3.0ug/ml, 2.0ug/ml, 1.5ug/ml, 1.0ug/ml, the isocyatic slant medium of 0.75ug/ml, 0.5ug/ml.
Be that bacille Calmette-Guerin vaccine (BCG) the bacteria suspension transfering loop of 1mg/ml dips ring of numbers by concentration, be inoculated in containing on the substratum of compound III series concentration and blank medium slant respectively, be placed in 37 DEG C to cultivate 4 ~ 8 weeks, observation experiment result, result is as shown in table 2.
In the present embodiment, Middlebrook7H9 broth culture used and Middlebrook7H11 nutrient agar are the conventional substratum that those skilled in the art carry out when tubercule bacillus is cultivated, and its formula adopts conventional formulation.(2) solid medium By Dilution compound III Killing Mycobacterium Tuberculosis type strain H37Rv strain absolute concentration
Scraping mycobacterium tuberculosis type strain H37Rv strain culture from inclined-plane, join in 3mlMiddlebrook7H9 broth culture, add a small amount of granulated glass sphere, screw test tube cap, high vibration grinding in vortex oscillator, with standard Maxwell opacity tube (MacFarlandNo.1) than turbid, be namely made into the H37Rv strain bacteria suspension of 1mg/ml.
Compound III is made into respectively the stoste of high density with DMSO, by the tween-80 aseptic ultrapure water dilution stoste containing 5% to desired concn, the compound III of having diluted is joined 4mlMiddlebrook7H11 nutrient agar (this substratum 121 DEG C of high pressure steam sterilizations 15 minutes, be cooled to 50 ~ 55 DEG C) by required dosage, mixing, make containing compound III, concentration is respectively 6.0ug/ml, 4.0ug/ml, 3.0ug/ml, 2.0ug/ml, 1.5ug/ml, 1.0ug/ml, the isocyatic slant medium of 0.75ug/ml, 0.5ug/ml.
Be that the H37Rv strain bacteria suspension transfering loop of 1mg/ml dips ring of numbers by concentration, be inoculated in respectively containing on the substratum of compound III series concentration and blank medium slant, be placed in 37 DEG C and cultivate 4 ~ 8 weeks, observation experiment result, result is as shown in table 2.
(3) the clinical separation of solid medium By Dilution compound III Ad tuberculosis resistance to ISREMTB strain absolute concentration
The clinical separation of scraping mycobacterium tuberculosis resistance to ISREMTB strain (resistance to vazadrine, Streptomycin sulphate, Rifampin, the clinical separator column of Tibutol mycobacterium tuberculosis) culture from inclined-plane, join in 3mlMiddlebrook7H9 broth culture, add a small amount of granulated glass sphere, screw test tube cap, high vibration grinding in vortex oscillator, with standard Maxwell opacity tube (MacFarlandNo.1) than turbid, be namely made into the bacteria suspension of 1mg/ml.
Compound III is made into respectively the stoste of high density with DMSO, by the tween-80 aseptic ultrapure water dilution stoste containing 5% to desired concn, the compound III of having diluted is joined 4mlMiddlebrook7H11 nutrient agar (this substratum 121 DEG C of high pressure steam sterilizations 15 minutes, be cooled to 50 ~ 55 DEG C) by required dosage, mixing, make containing compound III, concentration is respectively 6.0ug/ml, 4.0ug/ml, 3.0ug/ml, 2.0ug/ml, 1.5ug/ml, 1.0ug/ml, the isocyatic slant medium of 0.75ug/ml, 0.5ug/ml.
Be that the clinical separation of the mycobacterium tuberculosis resistance to ISREMTB strain bacteria suspension transfering loop of 1mg/ml dips ring of numbers by concentration, be inoculated in containing on the substratum of compound III series concentration and blank medium slant respectively, be placed in 37 DEG C to cultivate 4 ~ 8 weeks, observation experiment result, result is as shown in table 2.
Table 2 solid medium By Dilution compound III anti-tubercle bacillus absolute concentration result
Conclusion: compound III has very strong anti-tubercle bacillus and anti-drug resistance tubercule bacillus is active, can be used as the lead compound for the treatment of tubercle bacillus affection disease, also can be used for preparation treatment tubercular drugs.
Embodiment 7 compound III human body fungi activity
The experiment of human body fungi activity is the method adopting concentration dilution, and in triplicate, the pathogenic bacteria of test has trichophyton, microsporum lanosum and trichophyton tonsurans to each mensuration, and bacterial concentration is 10
5individual/mL.Compound III initial concentration is 50.00 μ g/mL (5% dimethyl sulfoxide (DMSO) DMSO), gradient dilution to 0.10 μ g/mL, the bacterium liquid of equivalent volumes and test sample mixed culture (ultimate density of formation has: 25.00,12.50,6.25,3.13,1.56,0.78,0.39,0.20,0.10 and 0.05 μ g/mL) in 96 orifice plates, Human Fungi culture temperature is respectively 28 DEG C, observe after incubation time 24h, if find, in the disposal hole not having bacterium colony to be formed, that minimum concentration is sample lowest concentration of antimicrobial, i.e. MIC value.This experiment positive control is KETOKONAZOL, and chemicals III human body fungi the results are shown in Table 3.
Table 3 chemicals III human body fungi MIC value (μ g/mL)
Conclusion: chemicals III has very strong human body fungi activity, therefore chemicals III of the present invention is expected to be used to prepare novel anti-human fungi medicine.
The preparation of embodiment 8 compound III tablet involved in the present invention
Get the one in the middle of 20 g of compound III or its pharmacy acceptable salt, add the customary adjuvant 180 grams preparing tablet, mixing, conventional tablet presses makes 1000.
The preparation of embodiment 9 compound III capsule involved in the present invention
Get the one in the middle of 20 g of compound III or its pharmacy acceptable salt, add prepare capsule customary adjuvant as starch 180 grams, mixing, encapsulatedly makes 1000.
Claims (11)
1. one kind there is structure shown in formula III close flowers and trees ketone Cleistanone derivative and pharmacy acceptable salt thereof:
2. close the preparation method of flowers and trees ketone Cleistanone derivative as claimed in claim 1, it is characterized by:
(1) close flowers and trees ketone Cleistanone (I) and be obtained by reacting with glycol dibromide the O-bromotrifluoromethane derivative (II) closing flowers and trees ketone Cleistanone;
(2) the O-bromotrifluoromethane derivative (II) closing flowers and trees ketone Cleistanone closes flowers and trees ketone Cleistanone derivative (III) with diethylamine generation substitution reaction is obtained;
3. close the preparation method of flowers and trees ketone Cleistanone derivative as claimed in claim 2, it is characterized by:
(1) 440mg compound is closed flowers and trees ketone Cleistanone (I) and be dissolved in 10mL benzene, in solution, add the Tetrabutyl amonium bromide of 0.04g, the glycol dibromide of 3.760g and 50% sodium hydroxide solution of 6mL; Mixture stirs 24h at 25 degrees Celsius; After 24h, reaction solution is poured in frozen water, use dichloromethane extraction twice immediately, merge organic phase solution; Then use water and saturated common salt water washing 3 times successively to organic phase solution, then use anhydrous sodium sulfate drying, last concentrating under reduced pressure is removed solvent and is obtained product crude product; Product crude product purification by silica gel column chromatography, moving phase is: sherwood oil/acetone=100:1, v/v, collects the yellow yellow solid concentrating elution band namely to obtain the O-bromotrifluoromethane derivative (II) closing flowers and trees ketone Cleistanone;
(2) the O-bromotrifluoromethane derivative closing flowers and trees ketone Cleistanone of 273mg is dissolved in the middle of 20mL acetonitrile, adds the Anhydrous potassium carbonate of 345mg wherein, the potassiumiodide of 84mg and the diethylamine of 1460mg, mixture reflux 8h; After reaction terminates, reaction solution is poured in frozen water, with equivalent dichloromethane extraction three times, merge organic phase; Organic phase after merging with water and saturated common salt water washing successively, then use anhydrous sodium sulfate drying, concentrating under reduced pressure is removed solvent and is obtained product crude product; Product crude product purification by silica gel column chromatography, moving phase is: sherwood oil/acetone=100:1, v/v, collects the faint yellow colloidal solid that namely faint yellow concentrated elution band obtains closing flowers and trees ketone Cleistanone derivative (III).
4. close flowers and trees ketone Cleistanone derivative and the application of pharmacy acceptable salt in preparation antibacterials thereof as claimed in claim 1.
5. as claimed in claim 4 a kind of there is structure shown in formula III close the application in preparation antibacterials of flowers and trees ketone Cleistanone derivative and pharmacy acceptable salt thereof, it is characterized by: described bacterium is bacterium.
6. as claimed in claim 4 a kind of there is structure shown in formula III close the application in preparation antibacterials of flowers and trees ketone Cleistanone derivative and pharmacy acceptable salt thereof, it is characterized by: described bacterium is fungi.
7. as claimed in claim 4 a kind of there is structure shown in formula III close the application in preparation antibacterials of flowers and trees ketone Cleistanone derivative and pharmacy acceptable salt thereof, it is characterized by: described bacterium is helicobacter pylori.
8. as claimed in claim 4 a kind of there is structure shown in formula III close the application in preparation antibacterials of flowers and trees ketone Cleistanone derivative and pharmacy acceptable salt thereof, it is characterized by: described bacterium is tubercule bacillus.
9. as claimed in claim 6 a kind of there is structure shown in formula III close the application in preparation antibacterials of flowers and trees ketone Cleistanone derivative and pharmacy acceptable salt thereof, it is characterized by: described fungi is trichophyton, microsporum lanosum or trichophyton tonsurans.
10. as claimed in claim 5 a kind of there is structure shown in formula III close the application in preparation antibacterials of flowers and trees ketone Cleistanone derivative and pharmacy acceptable salt thereof, it is characterized by: described bacterium is intestinal bacteria, fluorescent pseudomonas, Staphylococcus aureus, Bacillus proteus or cryptococcus neoformans.
11. as claimed in claim 8 a kind of there is structure shown in formula III close the application in preparation antibacterials of flowers and trees ketone Cleistanone derivative and pharmacy acceptable salt thereof, it is characterized by: described tubercule bacillus is bacille Calmette-Guerin vaccine, the H37Rv strain of mycobacterium tuberculosis type strain and substance of medicines-resistant branched tubercle bacillus.
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| CN104402964B (en) * | 2014-12-10 | 2016-06-15 | 南京大学 | O-(imidazole radicals) ethyl derivative of Cleistanone, preparation method and its usage |
| CN104758296A (en) * | 2015-03-10 | 2015-07-08 | 江苏卓见医疗用品有限公司 | Chitosan composite material containing novel active molecule, preparation method and application thereof |
| CN104840470A (en) * | 2015-04-15 | 2015-08-19 | 南京广康协生物医药技术有限公司 | Application of cleistanone O-(1H-tetrazole)ethyl derivative in preparation of antibacterial drugs |
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Non-Patent Citations (1)
| Title |
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| Cleistanone: A Triterpenoid from Cleistanthus indochinensis with a New Carbon Skeleton;Van Trinh Thi Thanh et al;《 Eur. J. Org. Chem》;20110607;4108-4111 * |
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