KR101915550B1 - Pharmaceutical composition for prevention or treatment of pneumonia comprising quinolin 4-one derivative or pharmacurically acceptable salt thereof as an active ingredient - Google Patents

Abstract

The present invention relates to a quinolinone 4-one derivative, a pharmaceutically acceptable salt thereof, or a pharmaceutical composition for preventing or treating pneumonia comprising as an active ingredient thereof. The quinolinone 4-one derivative according to the present invention not only has an excellent antibacterial activity but also has excellent antimicrobial activity against pneumococci having resistance to drugs, unlike the conventional antimicrobial agents, so that the prevention or prevention of pneumonia caused by these pneumococci And can be usefully used as a therapeutic pharmaceutical composition.

Description

The present invention relates to a pharmaceutical composition for the prevention or treatment of pneumonia comprising quinoline 4-one derivatives or a pharmaceutically acceptable salt thereof as an active ingredient. The present invention relates to a pharmaceutical composition for prevention or treatment of pneumonia comprising quinoline 4-one derivatives or a pharmaceutically acceptable salt thereof as an active ingredient. active ingredient}

The present invention relates to a pharmaceutical composition for preventing or treating pneumonia comprising quinoline 4-one derivatives or a pharmaceutically acceptable salt thereof as an active ingredient.

Pneumonia is an inflammation of the lungs caused by infection by microorganisms such as bacteria, viruses and fungi. Coughing, sputum due to the release of inflammatory substances, difficulty breathing due to breathing difficulties, lung symptoms in which the normal functions of the lungs are impaired, and digestive symptoms such as nausea, vomiting and diarrhea and headache, fatigue, muscular pain, Overall systemic disease can occur.

Pneumonia is caused by bacteria or viruses, and infections caused by fungi are rare. In addition to infectious pneumonia caused by microorganisms, non-infectious pneumonia may be caused by chemicals or radiation therapy, but the main cause of infection is bacteria or virus.

Pneumonia can vary in the way it is categorized because there are so many differences depending on the circumstances of the pneumonia. Whether the causative organism causing pneumonia is a bacterium or not, what type of bacteria it is, what kind of bacteria it is, whether the patient infected with the pathogen is a young person, an elderly person, a healthy person, or a respiratory disease, Pathogens can be seen in various shapes depending on where they are infected. In addition, in some cases, the cause of symptoms and signs of pneumonia may be unknown, not the exact cause of the infection.

Common pathogens that cause pneumonia outside the hospital are pneumococcus, staphylococcus aureus, gram negative bacillus, and anaerobic bacteria. On the other hand, common pathogens causing infectious pneumonia in hospitals are Pseudomonas, Staphylococcus aureus, Escherichia coli, Krebscheella, gram negative bacilli, and anaerobic bacteria.

A method of detecting pneumococci using a gene encoding cpsA having the amino acid sequence of SEQ ID NO: 2 as a detection target is used for the detection of pneumococci (Patent Document 1).

It is treated according to causative bacteria and treated with antibiotics such as penicillin. In severe cases, however, even with appropriate antibiotics, the disease continues to progress and may even die.

Since the first isolation of penicillin-resistant Streptococcus pneumoniae in 1967, the incidence of penicillin resistance in pneumococcal strains has increased over the last 30 years worldwide. The resistance of pneumococcal to penicillin is mainly due to denaturation of the penicillin-binding protein (PBP) of Streptococcus pneumoniae. Therefore, as the penicillin resistance rate of S. pneumoniae increases, resistance to other beta-lactam agents such as cephalosporin is likely to increase at the same time.

Penicillin resistance of pneumococcal strains is now a major concern worldwide, including Asia, parts of Western Europe and the southeastern United States. Penicillin resistance is the most serious area in Asia including Korea, and a recent study has shown that 92% of all pneumococci in Korea are moderately resistant and 65% Penicillin resistance.

Macrolide has been used as an alternative to penicillin in the treatment of pneumococci, including erythromycin, clarithromycin, and azithro-mycin. Especially, it has been widely used in cases of suspected infectious diseases due to high antibacterial activity against atypical bacteria such as Mycoplasma, Chlamydia and Legionella as well as pneumococci.

Macrolide resistance to Streptococcus pneumoniae is caused by acquisition of resistance genes (ermB, mefA) or denaturation of RNA or proteins. Among them, macrolide resistance caused by ermB gene acquisition of Streptococcus pneumoniae shows mainly high resistance (MIC ≥ 32 μg / ml), so macrolide has no effect on infectious diseases caused by these strains.

In areas with high penicillin resistance rates against Streptococcus pneumoniae, macrolide resistance rates are also high. Therefore, in Asia, not only penicillin resistance but also macrolide resistance rate of pneumococci are the highest in the world, which is a serious problem in the treatment of pneumonia.

Accordingly, the inventors of the present invention have found that quinolinone 4-one derivatives exhibit antimicrobial activity against S. pneumoniae while studying antibacterial activity against S. pneumoniae resistant to drug-resistant pneumococci, specifically, erythromycin. Completed.

Korean Patent No. 10-1050-3910000

It is an object of the present invention to provide a pharmaceutical composition for preventing or treating pneumonia comprising quinoline 4-one derivative or a pharmaceutically acceptable salt thereof as an active ingredient.

It is also an object of the present invention to provide a health functional food composition for preventing or ameliorating pneumonia comprising quinoline 4-one derivatives or a pharmaceutically acceptable salt thereof as an active ingredient.

In order to achieve the above object,

There is provided a pharmaceutical composition for preventing or treating pneumonia comprising, as an active ingredient, a compound represented by the following formula (1) or a pharmaceutically acceptable salt thereof.

[Chemical Formula 1]

In Formula 1,

X, R ¹ , R ² , R ³ , R ⁴ , R ⁵ and R ⁶ are as defined herein.

The present invention also provides a health functional food composition for preventing or ameliorating pneumonia, comprising a compound represented by the following formula (1) or a pharmaceutically acceptable salt thereof as an active ingredient.

[Chemical Formula 1]

In Formula 1,

X, R ¹ , R ² , R ³ , R ⁴ , R ⁵ and R ⁶ are as defined herein.

The quinolinone 4-one derivative according to the present invention not only has excellent antibacterial activity but also has excellent antimicrobial activity against drug-resistant pneumococci, unlike the conventional antimicrobial agents such as erythromycin, And can be usefully used as a pharmaceutical composition for preventing or treating diseases.

Hereinafter, the present invention will be described in detail.

The present invention provides a pharmaceutical composition for preventing or treating pneumonia comprising as an active ingredient a compound represented by the following general formula (1) or a pharmaceutically acceptable salt thereof.

[Chemical Formula 1]

(In the formula 1,

X is -NR ⁷ -, -S (= O) -, -S- or -O-;

R ¹ is -OH, linear or branched C ₁ -C ₁₀ alkyl or C ₃ -C ₆ cycloalkyl;

R ² , R ³ , R ⁴ and R ⁵ are each independently selected from the group consisting of hydrogen, halogen, -NO ₂ , -COOH, -CN, -OH, linear or branched C ₁ -C ₆ alkoxy, Halogen is substituted straight or branched C ₁ -C ₆ alkyl;

R ⁶ is a C ₁ -C ₆ alkyl, or unsubstituted or substituted C ₆ -C ₁₀ aryl straight or branched chain,

Wherein said substituted C ₆ -C ₁₀ aryl is selected from the group consisting of halogen, unsubstituted or straight or branched C ₁ -C ₆ alkyl substituted with one or more halogens, straight or branched C ₁ -C ₆ alkoxy and NO ₂ ≪ / RTI > And

R ⁷ is hydrogen or straight or branched C ₁ -C ₆ alkyl.

Preferably,

X is -NR ⁷ -, -S (= O) - or -S-;

R ¹ is C ₁ -C ₆ straight or branched chain alkyl or C ₃ -C ₄ cycloalkyl;

R ² , R ³ , R ⁴ and R ⁵ are each independently hydrogen, halogen, NO ₂ , straight or branched C ₁ -C ₃ alkoxy, or straight or branched chain C ₁ -C ₃ alkyl;

R ⁶ is a C ₁ -C ₄ alkyl, or unsubstituted or substituted C ₆ -C ₁₀ aryl straight or branched chain,

Wherein said substituted C ₆ -C ₁₀ aryl is selected from the group consisting of halogen, unsubstituted or straight or branched C ₁ -C ₃ alkyl substituted with one or more halogens, straight or branched C ₁ -C ₃ alkoxy and NO ₂ ≪ / RTI > And

R ⁷ is a C ₁ -C ₄ alkyl, hydrogen or a straight or branched chain.

Further, preferably,

X is -NR ⁷ - or -S (= O) -;

R ¹ is alkyl or C ₃ -C of C ₁ -C ₄ straight or branched chain _{4-cycloalkyl;}

R ² , R ³ , R ⁴ , and R ⁵ are each independently hydrogen, halogen, NO _2, or straight or branched C ₁ -C ₃ alkyl substituted unsubstituted or substituted with one or more halogens;

R ⁶ is a C ₁ -C ₄ alkyl, or unsubstituted or substituted C ₆ -C ₁₀ aryl straight or branched chain,

Wherein said substituted C ₆ -C ₁₀ aryl is selected from the group consisting of halogen, unsubstituted or straight or branched C ₁ -C ₃ alkyl substituted with one or more halogens, straight or branched C ₁ -C ₃ alkoxy and NO ₂ ≪ / RTI >

Most preferably,

X is -NH-;

R ¹ is methyl, ethyl, isopropyl or cyclopropyl;

R ² , R ³ , R ⁴ , and R ⁵ are each independently hydrogen, fluoro, bromo, chloro, NO ₂ , methyl or trifluoromethyl;

R <^6> is methyl, tert-butyl, unsubstituted or substituted phenyl,

The substituted phenyl may be substituted with one or more substituents selected from the group consisting of fluoro, bromo, chloro, methyl, tert-butyl or trifluoromethyl, methoxy and NO ₂ .

Preferred examples of the quinolin-4-one derivatives represented by the formula (1) according to the present invention include the following compounds.

1) 3-Acetyl-2- (4-bromophenylamino) -6-chloro-8-nitroquinolin-4 (1H) -one;

2) 3-Acetyl-6-chloro-2- (3,5-difluorophenylamino) -8-nitroquinolin-4 (1H) -one;

3) Methyl 3-acetyl-5,8-dichloro-2- (2,4-dichlorophenylamino) -4-oxoquinoline- 1 (4H) -carboxylate;

4) 3-Acetyl-8-chloro-6-nitro-2- (phenylamino) quinolin-4 (1H) -one;

5) 3-Acetyl-8-chloro-2- (3-methoxyphenylamino) -6-nitroquinolin-4 (1H) -one;

6) 3-Acetyl-5,8-dichloro-2- (3,5-difluorophenylamino) quinolin-4 (1H) -one;

7) 3-Acetyl-6-chloro-2- (4-methoxyphenylamino) -8-nitroquinolin-4 (1H) -one;

8) 2- (p-Tolylidino) -3-acetyl-6-chloro-8-nitroquinolin-4 (1H) -one;

9) 3-Acetyl-8-chloro-2- (4-chlorophenylamino) -6-nitroquinolin-4 (1H) -one;

10) 3-Acetyl-8-chloro-2- (3,5-difluorophenylamino) -5-fluoroquinolin-4 (1H) -one;

11) 3-Acetyl-5,8-dichloro-2- (4-chloro-2-fluorophenylamino) quinolin-4 (1H) -one;

12) 3-Acetyl-6-chloro-2- (3-methoxyphenylamino) -8-nitroquinolin-4 (1H) -one;

13) 3-Acetyl-6-chloro-8-nitro-2- (4-nitrophenylamino) quinolin-4 (1H) -one;

14) 3-Acetyl-8-chloro-2- (3-fluorophenylamino) -6-nitroquinolin-4 (1H) -one;

15) 3-Acetyl-6-chloro-2- (2,4-difluorophenylamino) -8-nitroquinolin-4 (1H) -one;

16) 5,8-Dichloro-2- (2,4-difluorophenylamino) -3-isobutyrylquinolin-4 (1H) -one;

17) 3-Acetyl-5,8-dichloro-2- (3,4-difluorophenylamino) quinolin-4 (1H) -one;

18) 3-Acetyl-5,8-dichloro-2- (4-chlorophenylamino) quinolin-4 (1H) -one;

19) 3-Acetyl-2- (3,5-difluorophenylamino) -6,8-difluoroquinolin-4 (1H) -one;

20) 3-Acetyl-6,8-difluoro-2- (2,4,5-trifluorophenylamino) quinolin-4 (1H) -one;

21) 3-Acetyl-5-chloro-2- (3,5-dichlorophenylamino) -8-methylquinolin-4 (1H) -one;

22) 3-Acetyl-8-chloro-5-fluoro-2- (2,4,5-trifluorophenylamino) quinolin-4 (1H) -one;

23) 3-Acetyl-6-chloro-2- (3,5-dichlorophenylamino) -8-nitroquinolin-4 (1H) -one;

24) 3-Acetyl-5,8-dichloro-2- (2,5-difluorophenylamino) quinolin-4 (1H) -one;

25) 3-Acetyl-8-chloro-2- (3,4-difluorophenylamino) -5-fluoroquinolin-4 (1H) -one;

26) 3-Acetyl-2- (3,5-bis (trifluoromethyl) phenylamino) -8-chloro-5-fluoroquinolin-4 (1H) -one;

27) 3-Acetyl-2- (4-chlorophenylamino) -6,8-difluoroquinolin-4 (1H) -one;

28) 3-Acetyl-5,8-dibromo-2- (4-bromophenylamino) quinolin-4 (1H) -one;

29) 3-Acetyl-5,8-dibromo-2- (2,4,5-trifluorophenylamino) quinolin-4 (1H) -one;

30) 3-Acetyl-5,8-difluoro-2- (2,4,5-trifluorophenylamino) quinolin-4 (1H) -one;

31) 3-Acetyl-6-chloro-2- (2-chloro-5-fluorophenylamino) -8-nitroquinolin-4 (1H) -one;

32) 3-Acetyl-8-chloro-2- (2,4-dibromophenylamino) -5-fluoroquinolin-4 (1H) -one;

33) 3-Acetyl-5,8-dibromo-2- (2,4-difluorophenylamino) quinolin-4 (1H) -one;

34) 3-Acetyl-5,8-dibromo-2- (3,5-difluorophenylamino) quinolin-4 (1H) -one;

35) 3-Acetyl-8-chloro-5-methyl-2- (2,4,5-trifluorophenylamino) quinolin-4 (1H) -one;

36) 3-Acetyl-5,8-dichloro-2- (2,4,5-trifluorophenylamino) quinolin-4 (1H) -one;

37) 3-Acetyl-6-chloro-2- (4-fluorophenylamino) -8-nitroquinolin-4 (1H) -one;

38) 3-Acetyl-2- (3,5-bis (trifluoromethyl) phenylamino) -5,8-difluoroquinolin-4 (1H) -one;

39) 8-Chloro-2- (3,5-dichlorophenylamino) -3-isobutyryl-5-nitroquinolin-4 (1H) -one;

40) 3-Acetyl-8-chloro-2- (3,5-dichlorophenylamino) -5-fluoroquinolin-4 (1H) -one;

41) 3-Acetyl-5,8-dibromo-2- (2,3,4-trifluorophenylamino) quinolin-4 (1H) -one;

42) 5,8-Dichloro-3- (cyclopropanecarbonyl) -2- (2,4-difluorophenylamino) quinolin-4 (1H) -one;

43) 3-Acetyl-8-bromo-5- (trifluoromethyl) -2- (2,3,4-trifluorophenylamino) quinolin-4 (1H) -one;

44) 3-Acetyl-7,8-dichloro-2- (3,5-difluorophenylamino) quinolin-4 (1H) -one;

45) 3-Acetyl-8-chloro-2- (4-chloro-2-fluorophenylamino) -5-methylquinolin-4 (1H) -one;

46) 3-Acetyl-8-chloro-5-methyl-2- (2,3,4-trifluorophenylamino) quinolin-4 (1H) -one;

47) 3-Acetyl-8-bromo-2- (3,5-difluorophenylamino) -5- (trifluoromethyl) quinolin-4 (1H) -one;

48) 3-Acetyl-8-bromo-2- (3,5-dichlorophenylamino) -5- (trifluoromethyl) quinolin-4 (1H) -one;

49) 3-Acetyl-5,6,8-trichloro-2- (3-fluorophenylamino) quinolin-4 (1H) -one;

50) 3-Acetyl-2- (3,5-dichlorophenylamino) -5,8-difluoroquinolin-4 (1H) -one;

51) 3-Acetyl-8-chloro-2- (2,4-dibromophenylamino) -5-methylquinolin-4 (1H) -one;

52) 3-Acetyl-5,8-dichloro-2- (2,3,4-trifluorophenylamino) quinolin-4 (1H) -one;

53) 3-Acetyl-6-chloro-2- (2,4-dichlorophenylamino) -8-nitroquinolin-4 (1H) -one;

54) 3-Acetyl-8-bromo-5- (trifluoromethyl) -2- (2,4,5-trifluorophenylamino) quinolin-4 (1H) -one;

55) 3-Acetyl-2- (4-bromophenylamino) -5,8-dichloroquinolin-4 (1H) -one;

56) 5,8-Dichloro-2- (2,4-difluorophenylamino) -3-propionylquinolin-4 (1H) -one;

57) 5,8-Dichloro-2- (2,4-dibromophenylamino) -3-propionylquinolin-4 (1H) -one;

58) 3-Acetyl-2- (4-bromophenylamino) -6,8-difluoroquinolin-4 (1H) -one;

59) 3-Acetyl-5,6,8-trichloro-2- (2,4-dichlorophenylamino) quinolin-4 (1H) -one;

60) 3-Acetyl-5,6,8-trichloro-2- (phenylamino) quinolin-4 (1H) -one;

61) 3-Acetyl-6-chloro-2- (4-chloro-2-fluorophenylamino) -8-nitroquinolin-4 (1H) -one;

62) 5,8-Dichloro-2- (2,4-dibromophenylamino) -3-isobutyrylquinolin-4 (1H) -one;

63) 3-Acetyl-8-chloro-2- (3,4-dichlorophenylamino) -5-fluoroquinolin-4 (1H) -one;

64) 3-Acetyl-5,6,8-trichloro-2- (4-chlorophenylamino) quinolin-4 (1H) -one;

65) 3-Acetyl-8-chloro-2- (3,5-difluorophenylamino) -6-nitroquinolin-4 (1H) -one;

66) 3-Acetyl-5,8-dibromo-2- (4-chlorophenylamino) quinolin-4 (1H) -one;

67) 3-Acetyl-2- (3,5-difluorophenylamino) -7,8-difluoroquinolin-4 (1H) -one;

68) 2- (m-Tolylidino) -3-acetyl-5,6,8-trichloroquinolin-4 (1H) -one;

69) 3-Acetyl-2- (4-tert-butylphenylamino) -8-chloro-6-nitroquinolin-4 (1H) -one;

70) 8-Chloro-2- (2,3-dichlorophenylamino-3-isobutyryl-5-nitroquinolin-4 (1H) -one;

71) 8-Chloro-2- (2,4-dichlorophenylamino-3-isobutyryl-5-nitroquinolin-4 (1H)

72) 3-Acetyl-8-chloro-2- (3-fluorophenylamino) -6-nitroquinolin-4 (1H) -one.

The quinoline 4-one derivative represented by the formula (1) according to the present invention can be used in the form of a pharmaceutically acceptable salt. The salt is useful as an acid addition salt formed by various pharmaceutically or physiologically acceptable organic acids or inorganic acids. Acid addition salts include those derived from inorganic acids such as hydrochloric acid, nitric acid, phosphoric acid, sulfuric acid, hydrobromic acid, hydroiodic acid, nitrous acid or phosphorous acid, and aliphatic mono- and dicarboxylates, phenyl-substituted alkanoates, hydroxyalkanoates, Dioleate, aromatic acid, aliphatic and aromatic sulfonic acids. Such pharmaceutically innocuous salts include, but are not limited to, sulfate, pyrosulfate, bisulfate, sulfite, bisulfite, nitrate, phosphate, monohydrogenphosphate, dihydrogenphosphate, metaphosphate, pyrophosphate chloride, bromide, Butyric acid, succinic acid, succinic acid, succinic acid, succinic acid, succinic acid, succinic acid, succinic acid, succinic acid, Hexanoic acid, benzoic acid, chlorobenzoic acid, methylbenzoic acid, dinitrobenzoic acid,? -Hydroxybenzoate, methoxybenzoic acid, phthalic acid, Terephthalate, benzenesulfonic acid, toluenesulfonic acid, chlorobenzenesulfonic acid, xylenesulfonic acid, phenylacetic acid, phenylpropion , Phenylbutyrate, citrate, lactate, hydroxybutyrate, glycolate, maleate, tartrate, methanesulfonate, propanesulfonate, naphthalene-1-sulfonate, naphthalene-2-sulfonate, mandelate or trifluo Lt; / RTI &gt; acid. Of these, hydrochloric acid, oxalic acid or trifluoroacetic acid can be preferably used.

At this time, the acid addition salt according to the present invention can be obtained by a conventional method, for example, by dissolving a derivative of the formula (1) in an excess amount of an acid aqueous solution, and then mixing the salt with a water-miscible organic solvent such as methanol, ethanol, Followed by precipitation using nitrile. It may also be prepared by evaporating a solvent or excess acid in this mixture and then drying or by suction filtration of the precipitated salt.

In addition, bases can be used to make pharmaceutically acceptable metal salts. The alkali metal or alkaline earth metal salt is obtained, for example, by dissolving the compound in an excess amount of an alkali metal hydroxide or alkaline earth metal hydroxide solution, filtering the insoluble compound salt, and evaporating and drying the filtrate. At this time, it is preferable for the metal salt to produce lithium, sodium, potassium or calcium salt. The corresponding silver salt is also obtained by reacting an alkali metal or alkaline earth metal salt with a suitable silver salt (for example, silver nitrate).

Further, the pharmaceutical composition according to the present invention can be used as a pharmaceutical composition containing penicillin, cephalosporin, aminoglycoside, benzoyl peroxide, povidone iodine, azelaic acid ), Retinoids, clindamycin, and erythromycin. The term &quot; adjuvant &quot;

Furthermore, the quinoline 4-one derivatives of the present invention can be administered in various forms of oral and parenteral administration at the time of clinical administration. In the case of formulation, quinolinone 4-one derivatives such as fillers, extenders, binders, wetting agents, disintegrators, Of a diluent or excipient. Examples of formulations for oral administration include tablets, pills, light / soft capsules, liquids, suspensions, emulsions, syrups, granules, elixirs, troches and the like, Talc, talc, dextrose, sucrose, mannitol, sorbitol, cellulose and / or glycine), lubricants such as silica, talc, stearic acid and its magnesium or calcium salts and / or polyethylene glycols. The tablets may also contain binders such as magnesium aluminum silicate, starch paste, gelatin, methylcellulose, sodium carboxymethylcellulose and / or polyvinylpyrrolidine and may optionally contain additives such as starch, agar, alginic acid or its sodium salt A disintegrating or boiling mixture and / or an absorbent, a colorant, a flavoring agent, and a sweetening agent.

The pharmaceutical composition comprising the quinoline 4-one derivative of Formula 1 as an active ingredient can be administered parenterally, and the parenteral administration is by subcutaneous injection, intravenous injection, intramuscular injection, or intrathoracic injection. In order to formulate the formulation for parenteral administration, the quinolinone 4-one derivative of Formula 1 or a pharmaceutically acceptable salt thereof is mixed with water or a stabilizer or a buffer to prepare a solution or suspension, which is then mixed with an ampule or vial unit May be prepared in dosage forms. The compositions may contain sterilized and / or preservatives, stabilizers, wettable or emulsifying accelerators, adjuvants such as salts and / or buffers for the control of osmotic pressure, and other therapeutically useful substances, Or may be formulated according to the coating method.

The effective dose of the compound of the present invention on the human body may vary depending on the age, weight, sex, dosage form, health condition and disease severity of the patient, and is generally about 0.001-100 mg / kg / 0.0 &gt; mg / kg / day. &Lt; / RTI &gt; It is generally from 0.07 to 7000 mg / day, preferably from 0.7 to 2500 mg / day, based on adult patients weighing 70 kg, and may be administered once or several times a day at certain intervals according to the judgment of a doctor or pharmacist It may be administered in divided doses.

Meanwhile, the pharmaceutical composition of the quinolinone 4-one derivative of the present invention provides a pharmaceutical composition for preventing or treating pneumonia which is characterized in that it has antibacterial activity against drug-resistant pneumococci.

In this regard, the present invention provides a pharmaceutical composition for preventing or treating pneumonia, wherein the drug is erythromycin.

Further, the medicament may be selected from the group consisting of penicillin, cephalosporin, aminoglycoside, benzoyl peroxide, povidone iodine, azelaic acid, retinoid ), Clindamycin, and erythromycin. The pharmaceutical composition of the present invention is not limited to these pharmaceutical compositions.

In addition, the present invention provides a pharmaceutical composition for preventing or treating pneumonia , wherein the pneumococcus is S. pneumoniae .

Furthermore, the pneumolysin is selected from the group consisting of Streptococcus pneumoniae, Klebsiella pneumoniae, Mycoplasma pneumoniae, and Legionella pneumophila. But is not limited to, a pharmaceutical composition for the prevention or treatment of pneumonia characterized by containing pneumococcus or more.

The present invention also provides a health functional food composition for preventing or ameliorating pneumonia, comprising a compound represented by the following formula (1) or a pharmaceutically acceptable salt thereof as an active ingredient.

[Chemical Formula 1]

(In the formula 1,

X is -NR ⁷ -, -S (= O) -, -S- or -O-;

R ¹ is -OH, linear or branched C ₁ -C ₁₀ alkyl or C ₃ -C ₆ cycloalkyl;

R ² , R ³ , R ⁴ and R ⁵ are each independently selected from the group consisting of hydrogen, halogen, -NO ₂ , -COOH, -CN, -OH, linear or branched C ₁ -C ₆ alkoxy, Halogen is substituted straight or branched C ₁ -C ₆ alkyl;

R ⁶ is a C ₁ -C ₆ alkyl, or unsubstituted or substituted C ₆ -C ₁₀ aryl straight or branched chain,

Wherein said substituted C ₆ -C ₁₀ aryl is selected from the group consisting of halogen, unsubstituted or straight or branched C ₁ -C ₆ alkyl substituted with one or more halogens, straight or branched C ₁ -C ₆ alkoxy and NO ₂ &Lt; / RTI &gt; And

R ⁷ is hydrogen or straight or branched C ₁ -C ₆ alkyl.

Preferably,

X is -NR ⁷ -, -S (= O) - or -S-;

R ¹ is C ₁ -C ₆ straight or branched chain alkyl or C ₃ -C ₄ cycloalkyl;

R ² , R ³ , R ⁴ and R ⁵ are each independently hydrogen, halogen, NO ₂ , straight or branched C ₁ -C ₃ alkoxy, or straight or branched chain C ₁ -C ₃ alkyl;

R ⁶ is a C ₁ -C ₄ alkyl, or unsubstituted or substituted C ₆ -C ₁₀ aryl straight or branched chain,

Wherein said substituted C ₆ -C ₁₀ aryl is selected from the group consisting of halogen, unsubstituted or straight or branched C ₁ -C ₃ alkyl substituted with one or more halogens, straight or branched C ₁ -C ₃ alkoxy and NO ₂ &Lt; / RTI &gt; And

R ⁷ is a C ₁ -C ₄ alkyl, hydrogen or a straight or branched chain.

Further, preferably,

X is -NR ⁷ - or -S (= O) -;

R ¹ is alkyl or C ₃ -C of C ₁ -C ₄ straight or branched chain _{4-cycloalkyl;}

R ² , R ³ , R ⁴ , and R ⁵ are each independently hydrogen, halogen, NO _2, or straight or branched C ₁ -C ₃ alkyl substituted unsubstituted or substituted with one or more halogens;

R ⁶ is a C ₁ -C ₄ alkyl, or unsubstituted or substituted C ₆ -C ₁₀ aryl straight or branched chain,

Wherein said substituted C ₆ -C ₁₀ aryl is selected from the group consisting of halogen, unsubstituted or straight or branched C ₁ -C ₃ alkyl substituted with one or more halogens, straight or branched C ₁ -C ₃ alkoxy and NO ₂ &Lt; / RTI &gt;

Most preferably,

X is -NH-;

R ¹ is methyl, ethyl, isopropyl or cyclopropyl;

R ² , R ³ , R ⁴ , and R ⁵ are each independently hydrogen, fluoro, bromo, chloro, NO ₂ , methyl or trifluoromethyl;

R <^6> is methyl, tert-butyl, unsubstituted or substituted phenyl,

The substituted phenyl may be substituted with one or more substituents selected from the group consisting of fluoro, bromo, chloro, methyl, tert-butyl or trifluoromethyl, methoxy and NO ₂ .

Preferable examples of the compound represented by the formula (1) according to the present invention include the following compounds.

1) 3-Acetyl-2- (4-bromophenylamino) -6-chloro-8-nitroquinolin-4 (1H) -one;

2) 3-Acetyl-6-chloro-2- (3,5-difluorophenylamino) -8-nitroquinolin-4 (1H) -one;

3) Methyl 3-acetyl-5,8-dichloro-2- (2,4-dichlorophenylamino) -4-oxoquinoline- 1 (4H) -carboxylate;

4) 3-Acetyl-8-chloro-6-nitro-2- (phenylamino) quinolin-4 (1H) -one;

5) 3-Acetyl-8-chloro-2- (3-methoxyphenylamino) -6-nitroquinolin-4 (1H) -one;

6) 3-Acetyl-5,8-dichloro-2- (3,5-difluorophenylamino) quinolin-4 (1H) -one;

7) 3-Acetyl-6-chloro-2- (4-methoxyphenylamino) -8-nitroquinolin-4 (1H) -one;

8) 2- (p-Tolylidino) -3-acetyl-6-chloro-8-nitroquinolin-4 (1H) -one;

9) 3-Acetyl-8-chloro-2- (4-chlorophenylamino) -6-nitroquinolin-4 (1H) -one;

10) 3-Acetyl-8-chloro-2- (3,5-difluorophenylamino) -5-fluoroquinolin-4 (1H) -one;

11) 3-Acetyl-5,8-dichloro-2- (4-chloro-2-fluorophenylamino) quinolin-4 (1H) -one;

12) 3-Acetyl-6-chloro-2- (3-methoxyphenylamino) -8-nitroquinolin-4 (1H) -one;

13) 3-Acetyl-6-chloro-8-nitro-2- (4-nitrophenylamino) quinolin-4 (1H) -one;

14) 3-Acetyl-8-chloro-2- (3-fluorophenylamino) -6-nitroquinolin-4 (1H) -one;

15) 3-Acetyl-6-chloro-2- (2,4-difluorophenylamino) -8-nitroquinolin-4 (1H) -one;

16) 5,8-Dichloro-2- (2,4-difluorophenylamino) -3-isobutyrylquinolin-4 (1H) -one;

17) 3-Acetyl-5,8-dichloro-2- (3,4-difluorophenylamino) quinolin-4 (1H) -one;

18) 3-Acetyl-5,8-dichloro-2- (4-chlorophenylamino) quinolin-4 (1H) -one;

19) 3-Acetyl-2- (3,5-difluorophenylamino) -6,8-difluoroquinolin-4 (1H) -one;

20) 3-Acetyl-6,8-difluoro-2- (2,4,5-trifluorophenylamino) quinolin-4 (1H) -one;

21) 3-Acetyl-5-chloro-2- (3,5-dichlorophenylamino) -8-methylquinolin-4 (1H) -one;

22) 3-Acetyl-8-chloro-5-fluoro-2- (2,4,5-trifluorophenylamino) quinolin-4 (1H) -one;

23) 3-Acetyl-6-chloro-2- (3,5-dichlorophenylamino) -8-nitroquinolin-4 (1H) -one;

24) 3-Acetyl-5,8-dichloro-2- (2,5-difluorophenylamino) quinolin-4 (1H) -one;

25) 3-Acetyl-8-chloro-2- (3,4-difluorophenylamino) -5-fluoroquinolin-4 (1H) -one;

26) 3-Acetyl-2- (3,5-bis (trifluoromethyl) phenylamino) -8-chloro-5-fluoroquinolin-4 (1H) -one;

27) 3-Acetyl-2- (4-chlorophenylamino) -6,8-difluoroquinolin-4 (1H) -one;

28) 3-Acetyl-5,8-dibromo-2- (4-bromophenylamino) quinolin-4 (1H) -one;

29) 3-Acetyl-5,8-dibromo-2- (2,4,5-trifluorophenylamino) quinolin-4 (1H) -one;

30) 3-Acetyl-5,8-difluoro-2- (2,4,5-trifluorophenylamino) quinolin-4 (1H) -one;

31) 3-Acetyl-6-chloro-2- (2-chloro-5-fluorophenylamino) -8-nitroquinolin-4 (1H) -one;

32) 3-Acetyl-8-chloro-2- (2,4-dibromophenylamino) -5-fluoroquinolin-4 (1H) -one;

33) 3-Acetyl-5,8-dibromo-2- (2,4-difluorophenylamino) quinolin-4 (1H) -one;

34) 3-Acetyl-5,8-dibromo-2- (3,5-difluorophenylamino) quinolin-4 (1H) -one;

35) 3-Acetyl-8-chloro-5-methyl-2- (2,4,5-trifluorophenylamino) quinolin-4 (1H) -one;

36) 3-Acetyl-5,8-dichloro-2- (2,4,5-trifluorophenylamino) quinolin-4 (1H) -one;

37) 3-Acetyl-6-chloro-2- (4-fluorophenylamino) -8-nitroquinolin-4 (1H) -one;

38) 3-Acetyl-2- (3,5-bis (trifluoromethyl) phenylamino) -5,8-difluoroquinolin-4 (1H) -one;

39) 8-Chloro-2- (3,5-dichlorophenylamino) -3-isobutyryl-5-nitroquinolin-4 (1H) -one;

40) 3-Acetyl-8-chloro-2- (3,5-dichlorophenylamino) -5-fluoroquinolin-4 (1H) -one;

41) 3-Acetyl-5,8-dibromo-2- (2,3,4-trifluorophenylamino) quinolin-4 (1H) -one;

42) 5,8-Dichloro-3- (cyclopropanecarbonyl) -2- (2,4-difluorophenylamino) quinolin-4 (1H) -one;

43) 3-Acetyl-8-bromo-5- (trifluoromethyl) -2- (2,3,4-trifluorophenylamino) quinolin-4 (1H) -one;

44) 3-Acetyl-7,8-dichloro-2- (3,5-difluorophenylamino) quinolin-4 (1H) -one;

45) 3-Acetyl-8-chloro-2- (4-chloro-2-fluorophenylamino) -5-methylquinolin-4 (1H) -one;

46) 3-Acetyl-8-chloro-5-methyl-2- (2,3,4-trifluorophenylamino) quinolin-4 (1H) -one;

47) 3-Acetyl-8-bromo-2- (3,5-difluorophenylamino) -5- (trifluoromethyl) quinolin-4 (1H) -one;

48) 3-Acetyl-8-bromo-2- (3,5-dichlorophenylamino) -5- (trifluoromethyl) quinolin-4 (1H) -one;

49) 3-Acetyl-5,6,8-trichloro-2- (3-fluorophenylamino) quinolin-4 (1H) -one;

50) 3-Acetyl-2- (3,5-dichlorophenylamino) -5,8-difluoroquinolin-4 (1H) -one;

51) 3-Acetyl-8-chloro-2- (2,4-dibromophenylamino) -5-methylquinolin-4 (1H) -one;

52) 3-Acetyl-5,8-dichloro-2- (2,3,4-trifluorophenylamino) quinolin-4 (1H) -one;

53) 3-Acetyl-6-chloro-2- (2,4-dichlorophenylamino) -8-nitroquinolin-4 (1H) -one;

54) 3-Acetyl-8-bromo-5- (trifluoromethyl) -2- (2,4,5-trifluorophenylamino) quinolin-4 (1H) -one;

55) 3-Acetyl-2- (4-bromophenylamino) -5,8-dichloroquinolin-4 (1H) -one;

56) 5,8-Dichloro-2- (2,4-difluorophenylamino) -3-propionylquinolin-4 (1H) -one;

57) 5,8-Dichloro-2- (2,4-dibromophenylamino) -3-propionylquinolin-4 (1H) -one;

58) 3-Acetyl-2- (4-bromophenylamino) -6,8-difluoroquinolin-4 (1H) -one;

59) 3-Acetyl-5,6,8-trichloro-2- (2,4-dichlorophenylamino) quinolin-4 (1H) -one;

60) 3-Acetyl-5,6,8-trichloro-2- (phenylamino) quinolin-4 (1H) -one;

61) 3-Acetyl-6-chloro-2- (4-chloro-2-fluorophenylamino) -8-nitroquinolin-4 (1H) -one;

62) 5,8-Dichloro-2- (2,4-dibromophenylamino) -3-isobutyrylquinolin-4 (1H) -one;

63) 3-Acetyl-8-chloro-2- (3,4-dichlorophenylamino) -5-fluoroquinolin-4 (1H) -one;

64) 3-Acetyl-5,6,8-trichloro-2- (4-chlorophenylamino) quinolin-4 (1H) -one;

65) 3-Acetyl-8-chloro-2- (3,5-difluorophenylamino) -6-nitroquinolin-4 (1H) -one;

66) 3-Acetyl-5,8-dibromo-2- (4-chlorophenylamino) quinolin-4 (1H) -one;

67) 3-Acetyl-2- (3,5-difluorophenylamino) -7,8-difluoroquinolin-4 (1H) -one;

68) 2- (m-Tolylidino) -3-acetyl-5,6,8-trichloroquinolin-4 (1H) -one;

69) 3-Acetyl-2- (4-tert-butylphenylamino) -8-chloro-6-nitroquinolin-4 (1H) -one;

70) 8-Chloro-2- (2,3-dichlorophenylamino-3-isobutyryl-5-nitroquinolin-4 (1H) -one;

71) 8-Chloro-2- (2,4-dichlorophenylamino-3-isobutyryl-5-nitroquinolin-4 (1H)

72) 3-Acetyl-8-chloro-2- (3-fluorophenylamino) -6-nitroquinolin-4 (1H) -one;

The health functional food composition according to the present invention may be added to health supplements such as foods, beverages and the like for the purpose of preventing or improving pneumonia diseases.

There is no particular limitation on the kind of the food. Examples of the foods to which the above substances can be added include dairy products including dairy products, meat, sausage, bread, biscuits, rice cakes, chocolate, candies, snacks, confectionery, pizza, ramen and other noodles, gums, ice cream, Beverages, alcoholic beverages and vitamin complexes, dairy products, and dairy products, all of which include health functional foods in a conventional sense.

The quinolinone 4-one derivatives of the present invention can be added directly to food or used with other food or food ingredients, and can be suitably used according to conventional methods. The amount of the active ingredient to be mixed can be suitably determined according to the intended use (for prevention or improvement). Generally, the amount of the compound in the health food may be 0.1 to 90 parts by weight of the total food. However, in the case of long-term intake intended for health and hygiene purposes or for the purpose of controlling health, the amount may be less than the above range, and since there is no problem in terms of safety, the active ingredient may be used in an amount exceeding the above range.

The health functional beverage composition of the present invention is not particularly limited to the other ingredients other than the above-mentioned compounds as essential ingredients in the indicated ratios and may contain various flavors or natural carbohydrates as additional ingredients such as ordinary beverages. Examples of the above-mentioned natural carbohydrates include monosaccharides such as glucose, fructose and the like; Disaccharides such as maltose, sucrose and the like; And polysaccharides, for example, conventional sugars such as dextrin, cyclodextrin and the like, and sugar alcohols such as xylitol, sorbitol and erythritol. As natural flavors other than those described above, natural flavoring agents (tau martin, stevia extract (e.g., rebaudioside A, glycyrrhizin, etc.) and synthetic flavors (saccharin, aspartame, etc.) The ratio of the natural carbohydrate is generally about 1 g to 20 g, preferably about 5 g to 12 g per 100 g of the composition of the present invention.

In addition to the above, the quinoline 4-one derivatives of the present invention can be used as flavorings such as various nutrients, vitamins, minerals (electrolytes), synthetic flavors and natural flavors, coloring agents and intermediates such as cheese and chocolate, , Alginic acid and its salts, organic acids, protective colloid thickeners, pH adjusting agents, stabilizers, preservatives, glycerin, alcohols, carbonating agents used in carbonated drinks and the like. In addition, the quinoline 4-one derivatives of the present invention may contain natural fruit juice and pulp for the production of fruit juice drinks and vegetable drinks. These components may be used independently or in combination. Although the ratio of such additives is not so important, the quinoline 4-one derivative of the present invention is generally selected in the range of 0.1 to about 20 parts by weight per 100 parts by weight.

Meanwhile, the health functional food composition of the quinolinone 4-one derivative of the present invention has antimicrobial activity against drug-resistant pneumococci, and provides a health functional food composition for preventing or improving pneumonia.

The present invention provides a health functional food composition for preventing or improving pneumonia, wherein the drug is erythromycin.

Further, the medicament may be selected from the group consisting of penicillin, cephalosporin, aminoglycoside, benzoyl peroxide, povidone iodine, azelaic acid, retinoid ), Clindamycin, and erythromycin. The composition of the present invention may be a health functional food composition for preventing or ameliorating pneumonia, but is not limited thereto.

The present invention also provides a health functional food composition for preventing or ameliorating pneumonia , wherein the pneumococcus is S. pneumoniae .

Furthermore, the pneumolysin is selected from the group consisting of Streptococcus pneumoniae, Klebsiella pneumoniae, Mycoplasma pneumoniae, and Legionella pneumophila. But is not limited to, a health functional food composition for preventing or ameliorating pneumonia characterized by containing pneumococcus or more.

Hereinafter, the present invention will be described in detail with reference to experimental examples.

However, the following experimental examples illustrate the present invention concretely, and the contents of the present invention are not limited by the experimental examples.

< Manufacturing example  1> Preparation of quinoline 4-one derivatives

The quinolinone 4-one derivatives of the following 1-72 according to the present invention were prepared from a Korean Compound Bank.

1) 3-acetyl-2- (4-bromophenylamino) -6-chloro-8-nitroquinolin-4 (1H)

2) 3-Acetyl-6-chloro-2- (3,5-difluorophenylamino) -8-nitroquinolin-4 (1H)

3) Acetyl-5,8-dichloro-2- (2,4-dichlorophenylamino) -4-oxoquinoline-

4) 3-Acetyl-8-chloro-6-nitro-2- (phenylamino) quinolin-4 (1H) -one (Korean Compound Bank Unique ID: 229544)

5) 3-Acetyl-8-chloro-2- (3-methoxyphenylamino) -6-nitroquinolin-4 (1H) -one (Korean Compound Bank Unique ID: 229556)

6) 3-Acetyl-5,8-dichloro-2- (3,5-difluorophenylamino) quinolin-4 (1H) -one (Korean Compound Bank Unique ID: 229583)

7) 3-Acetyl-6-chloro-2- (4-methoxyphenylamino) -8-nitroquinolin-4 (1H)

8) 2- (p-Tolylino) -3-acetyl-6-chloro-8-nitroquinolin-4 (1H)

9) 3-Acetyl-8-chloro-2- (4-chlorophenylamino) -6-nitroquinolin-4 (1H) -one (Korean Compound Bank Unique ID: 229545)

10) 3-Acetyl-8-chloro-2- (3,5-difluorophenylamino) -5-fluoroquinolin-4 (1H) -one (Korean Compound Bank Unique ID: 229579)

11) 3-Acetyl-5,8-dichloro-2- (4-chloro-2-fluorophenylamino) quinolin-4 (1H) -one (Korean Compound Bank Unique ID: 229585)

12) 3-Acetyl-6-chloro-2- (3-methoxyphenylamino) -8-nitroquinolin-4 (1H) -one (Korean Compound Bank Unique ID: 3628)

13) 3-Acetyl-6-chloro-8-nitro-2- (4-nitrophenylamino) quinolin-

14) 3-Acetyl-8-chloro-2- (3-fluorophenylamino) -6-nitroquinolin-4 (1H) -one (Korean Compound Bank Unique ID: 229555)

15) 3-Acetyl-6-chloro-2- (2,4-difluorophenylamino) -8-nitroquinolin-4 (1H) -one (Korean Compound Bank Unique ID: 229582)

16) 5,8-Dichloro-2- (2,4-difluorophenylamino) -3- isobutyrylquinolin-4 (1H) -one (Korean Compound Bank Unique ID: 229592)

17) 3-Acetyl-5,8-dichloro-2- (3,4-difluorophenylamino) quinolin-4 (1H) -one (Korean Compound Bank Unique ID: 229644)

18) 3-Acetyl-5,8-dichloro-2- (4-chlorophenylamino) quinolin-4 (1H) -one (Korean Compound Bank Unique ID: 229648)

19) 3-Acetyl-2- (3,5-difluorophenylamino) -6,8-difluoroquinolin-4 (1H) -one (Korean Compound Bank Unique ID: 229653)

20) 3-Acetyl-6,8-difluoro-2- (2,4,5-trifluorophenylamino) quinolin-4 (1H) -one (Korean Compound Bank Unique ID: 229656)

21) 3-Acetyl-5-chloro-2- (3,5-dichlorophenylamino) -8-methylquinolin-4 (1H) -one (Korean Compound Bank Unique ID: 229669)

22) 3-Acetyl-8-chloro-5-fluoro-2- (2,4,5-trifluorophenylamino) quinolin-

23) 3-Acetyl-6-chloro-2- (3,5-dichlorophenylamino) -8-nitroquinolin-4 (1H) -one (Korean Compound Bank Unique ID: 230122)

24) 3-Acetyl-5,8-dichloro-2- (2,5-difluorophenylamino) quinolin-4 (1H) -one (Korean Compound Bank Unique ID: 229646)

25) 3-Acetyl-8-chloro-2- (3,4-difluorophenylamino) -5-fluoroquinolin-4 (1H) -one (Korean Compound Bank Unique ID: 229651)

26) 3-Acetyl-2- (3,5-bis (trifluoromethyl) phenylamino) -8-chloro-5-fluoroquinolin-

27) 3-Acetyl-2- (4-chlorophenylamino) -6,8-difluoroquinolin-4 (1H) -one (Korean Compound Bank Unique ID: 229657)

28) 3-Acetyl-5,8-dibromo-2- (4-bromophenylamino) quinolin-4 (1H) -one (Korean Compound Bank Unique ID: 229672)

29) 3-Acetyl-5,8-dibromo-2- (2,4,5-trifluorophenylamino) quinolin-4 (1H) -one (Korean Compound Bank Unique ID: 229684)

30) 3-Acetyl-5,8-difluoro-2- (2,4,5-trifluorophenylamino) quinolin-4 (1H) -one (Korean Compound Bank Unique ID: 229687)

31) 3-Acetyl-6-chloro-2- (2-chloro-5- fluorophenylamino) -8-nitroquinolin-4 (1H) -one (Korean Compound Bank Unique ID: 229647)

32) 3-Acetyl-8-chloro-2- (2,4-dibromophenylamino) -5-fluoroquinolin-4 (1H) -one (Korean Compound Bank Unique ID: 229652)

33) 3-Acetyl-5,8-dibromo-2- (2,4-difluorophenylamino) quinolin-4 (1H) -one (Korean Compound Bank Unique ID: 229655)

34) 3-Acetyl-5,8-dibromo-2- (3,5-difluorophenylamino) quinolin-4 (1H) -one (Korean Compound Bank Unique ID: 229668)

35) 3-Acetyl-8-chloro-5-methyl-2- (2,4,5-trifluorophenylamino) quinolin-4 (1H) -one (Korean Compound Bank Unique ID: 229682)

36) 3-Acetyl-5,8-dichloro-2- (2,4,5-trifluorophenylamino) quinolin-4 (1H) -one (Korean Compound Bank Unique ID: 229685)

37) 3-Acetyl-6-chloro-2- (4-fluorophenylamino) -8-nitroquinolin-4 (1H) -one (Korean Compound Bank Unique ID: 229688)

38) 3-Acetyl-2- (3,5-bis (trifluoromethyl) phenylamino) -5,8-difluoroquinolin-4 (1H)

39) 8-Chloro-2- (3,5-dichlorophenylamino) -3-isobutyryl-5-nitroquinolin-4 (1H) -one; (Korean Compound Bank Unique ID: 230227)

40) 3-Acetyl-8-chloro-2- (3,5-dichlorophenylamino) -5-fluoroquinolin-4 (1H) -one (Korean Compound Bank Unique ID: 229914)

41) 3-Acetyl-5,8-dibromo-2- (2,3,4-trifluorophenylamino) quinolin-4 (1H) -one (Korean Compound Bank Unique ID: 229927)

42) 5,8-Dichloro-3- (cyclopropanecarbonyl) -2- (2,4-difluorophenylamino) quinolin-4 (1H) -one (Korean Compound Bank Unique ID: 229961)

43) 3-Acetyl-8-bromo-5- (trifluoromethyl) -2- (2,3,4-trifluorophenylamino) quinolin- 229984)

44) 3-Acetyl-7,8-dichloro-2- (3,5-difluorophenylamino) quinolin-4 (1H) -one (Korean Compound Bank Unique ID: 229692)

45) 3-Acetyl-8-chloro-2- (4-chloro-2-fluorophenylamino) -5-methylquinolin-4 (1H) -one (Korean Compound Bank Unique ID: 229909)

46) 3-Acetyl-8-chloro-5-methyl-2- (2,3,4-trifluorophenylamino) quinolin-4 (1H) -one (Korean Compound Bank Unique ID: 229924)

47) 3-Acetyl-8-bromo-2- (3,5-difluorophenylamino) -5- (trifluoromethyl) quinolin-4 (1H) -one (Korean Compound Bank Unique ID: 229945)

48) 3-Acetyl-8-bromo-2- (3,5-dichlorophenylamino) -5- (trifluoromethyl) quinolin-

49) 3-Acetyl-5,6,8-trichloro-2- (3-fluorophenylamino) quinolin-4 (1H) -one (Korean Compound Bank Unique ID: 230020)

50) 3-Acetyl-2- (3,5-dichlorophenylamino) -5,8-difluoroquinolin-4 (1H) -one (Korean Compound Bank Unique ID: 229697)

51) 3-Acetyl-8-chloro-2- (2,4-dibromophenylamino) -5-methylquinolin-4 (1H) -one (Korean Compound Bank Unique ID: 229910)

52) 3-Acetyl-5,8-dichloro-2- (2,3,4-trifluorophenylamino) quinolin-4 (1H) -one (Korean Compound Bank Unique ID: 229925)

53) 3-Acetyl-6-chloro-2- (2,4-dichlorophenylamino) -8-nitroquinolin-4 (1H) -one (Korean Compound Bank Unique ID: 229584)

54) 3-Acetyl-8-bromo-5- (trifluoromethyl) -2- (2,4,5-trifluorophenylamino) quinolin- 229979)

55) 3-Acetyl-2- (4-bromophenylamino) -5,8-dichloroquinolin-4 (1H) -one (Korean Compound Bank Unique ID: 230109)

56) 5,8-Dichloro-2- (2,4-difluorophenylamino) -3- propionylquinolin-4 (1H) -one (Korean Compound Bank Unique ID: 230113)

57) 5,8-Dichloro-2- (2,4-dibromophenylamino) -3- propionylquinolin-4 (1H) -one (Korean Compound Bank Unique ID: 230129)

58) 3-Acetyl-2- (4-bromophenylamino) -6,8-difluoroquinolin-4 (1H) -one (Korean Compound Bank Unique ID: 230184)

59) 3-Acetyl-5,6,8-trichloro-2- (2,4-dichlorophenylamino) quinolin-4 (1H) -one (Korean Compound Bank Unique ID: 230659)

60) 3-Acetyl-5,6,8-trichloro-2- (phenylamino) quinolin-4 (1H) -one (Korean Compound Bank Unique ID: 230680)

61) 3-Acetyl-6-chloro-2- (4-chloro-2-fluorophenylamino) -8-nitroquinolin-

62) 5,8-Dichloro-2- (2,4-dibromophenylamino) -3- isobutyrylquinolin-4 (1H) -one (Korean Compound Bank Unique ID: 230131)

63) 3-Acetyl-8-chloro-2- (3,4-dichlorophenylamino) -5-fluoroquinolin-4 (1H) -one (Korean Compound Bank Unique ID: 230218)

64) 3-Acetyl-5,6,8-trichloro-2- (4-chlorophenylamino) quinolin-4 (1H) -one (Korean Compound Bank Unique ID: 230676)

65) 3-Acetyl-8-chloro-2- (3,5-difluorophenylamino) -6-nitroquinolin-4 (1H) -one (Korean Compound Bank Unique ID: 230120)

66) 3-Acetyl-5,8-dibromo-2- (4-chlorophenylamino) quinolin-4 (1H) -one (Korean Compound Bank Unique ID: 230137)

67) 3-Acetyl-2- (3,5-difluorophenylamino) -7,8-difluoroquinolin-4 (1H) -one (Korean Compound Bank Unique ID: 230226)

68) 2- (m-Tolylino) -3-acetyl-5,6,8-trichloroquinolin-4 (1H) -one (Korean Compound Bank Unique ID: 230678)

69) 3-Acetyl-2- (4-tert-butylphenylamino) -8-chloro-6-nitroquinolin-4 (1H) -one (Korean Compound Bank Unique ID: 229550)

70) 8-Chloro-2- (2,3-dichlorophenylamino-3-isobutyryl-5-nitroquinolin-4 (1H) -one (Korean Compound Bank Unique ID: 230228)

71) 8-Chloro-2- (2,4-dichlorophenylamino-3-isobutyryl-5-nitroquinolin-4 (1H) -one (Korean Compound Bank Unique ID: 230217)

72) 3-Acetyl-8-chloro-2- (3-fluorophenylamino) -6-nitroquinolin-4 (1H) -one (Korean Compound Bank Unique ID: 229698)

The specific chemical structures of the compounds prepared in Preparation Example 1-72 are summarized in Table 1 below.

Manufacturing example Chemical structure Manufacturing example Chemical structure One

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26

27

28

29

30

31

32

33

34

35

36

37

38

39

40

41

42

43

44

45

46

47

48

49

50

51

52

53

54

55

56

57

58

59

60

61

62

63

64

65

66

67

68

69

70

71

72

< Comparative Example  1> Preparation of Control Drug

Erythromycin, which is conventionally known as a pneumococcal antimicrobial agent, was prepared.

< Comparative Example  2> Preparation of Control Bacteria

Pneumoniae Streptococcus pneumoniae ( S. pneumoniae ) was prepared.

< Experimental Example  1> quinoline 4-one derivative of Streptococcus Pneumonia (Streptococcus pneumoniae, S. pneumoniae Evaluation of Antimicrobial Activity by.

In order to evaluate the antimicrobial activity of the quinolinone 4-on derivative according to the present invention against S. pneumoniae , the following experiment was conducted.

After cryoprecycnus pneumoniae, which is a cryopreserved specimen, was dissolved, 100 μl was inoculated into a 50 ml tube containing 10 ml of Trypricase soy broth (TSB). The inoculated bacteria were anaerobically cultured for 16 hours without shaking at 37 ° C in a 5% CO 2 feed. The growth of the bacteria cultured for 16 hours was confirmed by turbidity of the medium, and then diluted to an absorbance (600 nm) of 0.02 in 10 ml of TSB medium and re-inoculated. Re-inoculated bacteria were anaerobically cultured for 6 hours at 37 ° C in a 5% CO 2 feed without shaking. After confirming the absorbance of the bacteria cultured for 6 hours after re-inoculation, 2 ml of Streptococcus culture with an absorbance of 0.05 was prepared by diluting with TSB. 900 ml of 2 ml was measured by absorbance and reaffirmed 0.05. Then, a Streptococcus culture with an absorbance of 0.05 was prepared by diluting 1: 1000 with trypticase soy broth (TSB) according to the amount required for the experiment.

As a control reagent, 100 μl of erythromycin and vancomycin at a high concentration (1 mg / ml) were prepared. 1 ml of erythromycin (100 μg / ml) and 1: 12.5 diluted vancomycin (80 μg / ml) diluted 1:10 with TSB were prepared. One set consisted of nine 1.5 ml tubes in each well, filled with 400 μl (diluted erythromycin) of TSB in all, and 300 μl (vancomycin dilution set) in all other sets.

200 μl of 100 μg / ml erythromycin was added to the first tube of the set containing 400 μl of TSB, mixed well, 200 μl was added to the second tube and mixed well. In the same way, the remaining 7 tubes were serially diluted 1: 3. Next, 300 μl of 80 μg / ml vancomycin was added to the first tube of the set containing 300 μl of TSB and stirred, then 300 μl was added to the second tube and stirred. In the same way, the remaining 7 tubes were serially diluted 1: 2. After dilution was completed, 5 μl of the solution was added to a 384-well, black, clear-bottomed experimental plate (n = 3)

At the end of the drug dispensing, the test plate was placed in a centrifuge and the drug was transferred for 1 minute at 1000 rpm to the bottom of each testing well. After preparing the experimental plates and bacteria, 45 μl of the diluted bacteria were put into each experimental well and anaerobically incubated for 16 hours at 37 ° C in a 5% CO 2 feed without shaking. After 16 hours of anaerobic incubation, the experimental plate was removed from the incubator and allowed to cool for 30 minutes at ~ 25 ° (room temperature). 10X Rezahurin solution was added to all parts of the plate in an amount of 5 μl, and the plate was wrapped with aluminum foil to prevent exposure to light. The plate was allowed to react at ~ 25 ° for 4 hours. After the reaction was completed for 4 hours and the foil was removed, Was set to 530/590 (excitation / emission) and the results were confirmed.

The results of the above experiment are shown in Table 2 below.

Manufacturing example WT
% Inh 15B
% Inh 18A
% Inh Manufacturing example WT
% Inh 15B
% Inh 18A
% Inh One 107 112 90 2 108 117 95 3 105 102 104 4 106 100 104 5 103 99 96 6 96 94 97 7 24 3 -8.42 8 12 5 -3 9 108 101 94 10 105 104 104 11 103 102 103 12 13 87 -6 13 110 116 108 14 101 100 101 15 103 101 101 16 97 95 96 17 102 102 103 18 104 102 102 19 97 97 98 20 94 97 98 21 96 96 95 22 96 92 96 23 106 105 105 24 99 99 99 25 94 84 93 26 103 102 102 27 100 88 86 28 106 103 106 29 104 103 103 30 65 83 80 31 104 94 97 32 106 95 106 33 104 108 104 34 102 101 100 35 100 99 101 36 97 96 96 37 5 100 One 38 101 100 101 39 97 95 92 40 97 95 97 41 102 100 103 42 105 104 104 43 105 103 105 44 102 103 104 45 99 96 97 46 106 102 106 47 97 95 96 48 99 100 101 49 101 100 99 50 97 95 96 51 100 99 99 52 97 95 95 53 105 103 105 54 105 103 105 55 100 98 102 56 103 102 103 57 97 96 96 58 105 103 106 59 101 99 103 60 95 95 95 61 98 96 96 62 98 98 98 63 92 92 95 64 101 99 102 65 16 9 97 66 103 102 103 67 105 106 104 68 100 97 89 69 105 104 105 70 96 96 96 71 103 103 102 72 99 100 101 * WT: Wild type specimen (Wild type)
* 15B: drug-resistant Streptococcus pneumoniae specimen
* 18A: Erythromycin streptococcus pneumoniae specimen
*% Inh = (negative control value - fluorescence analysis result value) / (negative control average - positive control average value) × 100

As shown in Table 2,

The quinoline 4-one derivative according to the present invention has an excellent antimicrobial activity against S. pneumoniae . More specifically, the quinoline 4-one derivatives of the present invention exhibit excellent antimicrobial activity against wild-type, drug-resistant, and erythromycin-resistant specimens.

Therefore, the quinolinone 4-one derivative according to the present invention can be used not only as an antimicrobial effect against S. pneumoniae which is not resistant to drugs but also as an antimicrobial agent against scurptococcus nu It can be seen that the antimicrobial effect is excellent against S. pneumoniae .

Meanwhile, the derivatives according to the present invention can be formulated into various forms according to the purpose. Examples of formulations for the composition of the present invention are illustrated below.

< Formulation example  1> Preparation of pharmaceutical preparations

1. Manufacturing of powder

2 g of the compound of formula 1 according to the invention

Lactose 1 g

The above components were mixed and packed in airtight bags to prepare powders.

2. Preparation of tablets

100 mg of the compound of formula 1 according to the present invention

Corn starch 100 mg

Lactose 100 mg

Magnesium stearate 2 mg

After mixing the above components, tablets were prepared by tableting according to a conventional method for producing tablets.

3. Preparation of capsules

100 mg of the compound of formula 1 according to the present invention

Corn starch 100 mg

Lactose 100 mg

Magnesium stearate 2 mg

After mixing the above components, the capsules were filled in gelatin capsules according to the conventional preparation method of capsules.

4. Manufacture of rings

1 g of the compound of formula 1 according to the invention

Lactose 1.5 g

Glycerin 1 g

0.5 g of xylitol

After mixing the above components, they were prepared so as to be 4 g per one ring according to a conventional method.

5. Manufacture of granules

The compound of Formula 1 (150 mg) according to the present invention

Soybean extract 50 mg

Glucose 200 mg

Starch 600 mg

After mixing the above components, 100 μl of 30% ethanol was added and the mixture was dried at 60 ° C. to form granules, which were then filled in a capsule.

Meanwhile, the compounds of the present invention are capable of producing health functional foods in various forms depending on the purpose. Examples of the preparation of a health functional food for the composition of the present invention are shown below.

< Formulation example  2> Manufacture of dairy products

0.01 to 1 part by weight of the health functional food composition of the present invention was added to milk, and various dairy products such as butter and ice cream were prepared using the milk.

< Formulation example  3> Solar  Produce

Brown rice, barley, glutinous rice, and yulmu were dried by a known method and dried, and the mixture was granulated to a powder having a particle size of 60 mesh. Black soybeans, black sesame seeds, and perilla seeds were steamed and dried by a conventional method, and then they were prepared into powder having a particle size of 60 mesh by a pulverizer. The health functional food composition of the present invention was concentrated under reduced pressure in a vacuum concentrator to obtain a dry powder.

The grains, seeds, and dried powder of the compound of formula (1) according to the present invention were prepared in the following proportions.

Grain (34 parts by weight of brown rice, 19 parts by weight of yulmu, 20 parts by weight of barley)

Seeds (7 parts by weight of perilla, 8 parts by weight of black beans, 7 parts by weight of black sesame seeds)

Quinoline 4-one derivative (2 parts by weight),

(1.5 parts by weight), and

Rhizome (1.5 parts by weight).

< Formulation example  4> Manufacture of Health Functional Foods

100 mg of the compound of formula 1 according to the present invention

Vitamin mixture quantity

Vitamin A acetate 70 μg

Vitamin E 1.0 mg

Vitamin B1 0.13 mg

0.15 mg of vitamin B2

Vitamin B6 0.5 mg

Vitamin B12 0.2 μg

Vitamin C 10 mg

Biotin 10 μg

Nicotinic acid amide 1.7 mg

Folic acid 50 μg

Calcium pantothenate 0.5 mg

Mineral mixture quantity

1.75 mg of ferrous sulfate

0.82 mg of zinc oxide

Magnesium carbonate 25.3 mg

Potassium monophosphate 15 mg

Secondary calcium phosphate 55 mg

Potassium citrate 90 mg

Calcium carbonate 100 mg

Magnesium chloride 24.8 mg

Although the composition ratio of the above-mentioned vitamin and mineral mixture is comparatively mixed with a component suitable for a health functional food as a preferred embodiment, the compounding ratio may be arbitrarily changed, and the above components may be mixed , Granules may be prepared and used in the manufacture of health functional food compositions according to conventional methods.

< Formulation example  5> Manufacture of health functional drinks

100 mg of the compound of formula 1 according to the present invention

Citric acid 100 mg

Oligosaccharide 100 mg

Plum concentrate 2 mg

Taurine 100 mg

Purified water was added to the whole 500 mL

The above components were mixed according to a conventional health drink manufacturing method, and the mixture was heated at 85 DEG C for about 1 hour with stirring, and the solution thus prepared was filtered to obtain a sterilized container. The resulting solution was sealed and sterilized, &Lt; / RTI &gt;

Although the composition ratio is a mixture of the components suitable for the preferred beverage as a preferred embodiment, the blending ratio may be arbitrarily varied according to the regional and national preferences such as the demand level, the demanding country, and the intended use.

Claims (11)

A pharmaceutical composition for preventing or treating pneumonia comprising as an active ingredient a compound represented by the following formula (1) or a pharmaceutically acceptable salt thereof:
[Chemical Formula 1]

(In the formula 1,
X is -NH-;
R ¹ is methyl, ethyl, isopropyl or cyclopropyl;
R ² , R ³ , R ⁴ , and R ⁵ are each independently hydrogen, fluoro, bromo, chloro, NO ₂ , methyl or trifluoromethyl;
R <^6> is methyl, tert-butyl, unsubstituted or substituted phenyl,
Wherein said substituted phenyl is substituted with one or more substituents selected from the group consisting of fluoro, bromo, chloro, methyl, tert-butyl or trifluoromethyl, methoxy and NO ₂ .
delete delete delete The method according to claim 1,
The compound represented by the general formula (1)
1) 3-Acetyl-2- (4-bromophenylamino) -6-chloro-8-nitroquinolin-4 (1H) -one;
2) 3-Acetyl-6-chloro-2- (3,5-difluorophenylamino) -8-nitroquinolin-4 (1H) -one;
3) Methyl 3-acetyl-5,8-dichloro-2- (2,4-dichlorophenylamino) -4-oxoquinoline- 1 (4H) -carboxylate;
4) 3-Acetyl-8-chloro-6-nitro-2- (phenylamino) quinolin-4 (1H) -one;
5) 3-Acetyl-8-chloro-2- (3-methoxyphenylamino) -6-nitroquinolin-4 (1H) -one;
6) 3-Acetyl-5,8-dichloro-2- (3,5-difluorophenylamino) quinolin-4 (1H) -one;
7) 3-Acetyl-6-chloro-2- (4-methoxyphenylamino) -8-nitroquinolin-4 (1H) -one;
8) 2- (p-Tolylidino) -3-acetyl-6-chloro-8-nitroquinolin-4 (1H) -one;
9) 3-Acetyl-8-chloro-2- (4-chlorophenylamino) -6-nitroquinolin-4 (1H) -one;
10) 3-Acetyl-8-chloro-2- (3,5-difluorophenylamino) -5-fluoroquinolin-4 (1H) -one;
11) 3-Acetyl-5,8-dichloro-2- (4-chloro-2-fluorophenylamino) quinolin-4 (1H) -one;
12) 3-Acetyl-6-chloro-2- (3-methoxyphenylamino) -8-nitroquinolin-4 (1H) -one;
13) 3-Acetyl-6-chloro-8-nitro-2- (4-nitrophenylamino) quinolin-4 (1H) -one;
14) 3-Acetyl-8-chloro-2- (3-fluorophenylamino) -6-nitroquinolin-4 (1H) -one;
15) 3-Acetyl-6-chloro-2- (2,4-difluorophenylamino) -8-nitroquinolin-4 (1H) -one;
16) 5,8-Dichloro-2- (2,4-difluorophenylamino) -3-isobutyrylquinolin-4 (1H) -one;
17) 3-Acetyl-5,8-dichloro-2- (3,4-difluorophenylamino) quinolin-4 (1H) -one;
18) 3-Acetyl-5,8-dichloro-2- (4-chlorophenylamino) quinolin-4 (1H) -one;
19) 3-Acetyl-2- (3,5-difluorophenylamino) -6,8-difluoroquinolin-4 (1H) -one;
20) 3-Acetyl-6,8-difluoro-2- (2,4,5-trifluorophenylamino) quinolin-4 (1H) -one;
21) 3-Acetyl-5-chloro-2- (3,5-dichlorophenylamino) -8-methylquinolin-4 (1H) -one;
22) 3-Acetyl-8-chloro-5-fluoro-2- (2,4,5-trifluorophenylamino) quinolin-4 (1H) -one;
23) 3-Acetyl-6-chloro-2- (3,5-dichlorophenylamino) -8-nitroquinolin-4 (1H) -one;
24) 3-Acetyl-5,8-dichloro-2- (2,5-difluorophenylamino) quinolin-4 (1H) -one;
25) 3-Acetyl-8-chloro-2- (3,4-difluorophenylamino) -5-fluoroquinolin-4 (1H) -one;
26) 3-Acetyl-2- (3,5-bis (trifluoromethyl) phenylamino) -8-chloro-5-fluoroquinolin-4 (1H) -one;
27) 3-Acetyl-2- (4-chlorophenylamino) -6,8-difluoroquinolin-4 (1H) -one;
28) 3-Acetyl-5,8-dibromo-2- (4-bromophenylamino) quinolin-4 (1H) -one;
29) 3-Acetyl-5,8-dibromo-2- (2,4,5-trifluorophenylamino) quinolin-4 (1H) -one;
30) 3-Acetyl-5,8-difluoro-2- (2,4,5-trifluorophenylamino) quinolin-4 (1H) -one;
31) 3-Acetyl-6-chloro-2- (2-chloro-5-fluorophenylamino) -8-nitroquinolin-4 (1H) -one;
32) 3-Acetyl-8-chloro-2- (2,4-dibromophenylamino) -5-fluoroquinolin-4 (1H) -one;
33) 3-Acetyl-5,8-dibromo-2- (2,4-difluorophenylamino) quinolin-4 (1H) -one;
34) 3-Acetyl-5,8-dibromo-2- (3,5-difluorophenylamino) quinolin-4 (1H) -one;
35) 3-Acetyl-8-chloro-5-methyl-2- (2,4,5-trifluorophenylamino) quinolin-4 (1H) -one;
36) 3-Acetyl-5,8-dichloro-2- (2,4,5-trifluorophenylamino) quinolin-4 (1H) -one;
37) 3-Acetyl-6-chloro-2- (4-fluorophenylamino) -8-nitroquinolin-4 (1H) -one;
38) 3-Acetyl-2- (3,5-bis (trifluoromethyl) phenylamino) -5,8-difluoroquinolin-4 (1H) -one;
39) 8-Chloro-2- (3,5-dichlorophenylamino) -3-isobutyryl-5-nitroquinolin-4 (1H) -one;
40) 3-Acetyl-8-chloro-2- (3,5-dichlorophenylamino) -5-fluoroquinolin-4 (1H) -one;
41) 3-Acetyl-5,8-dibromo-2- (2,3,4-trifluorophenylamino) quinolin-4 (1H) -one;
42) 5,8-Dichloro-3- (cyclopropanecarbonyl) -2- (2,4-difluorophenylamino) quinolin-4 (1H) -one;
43) 3-Acetyl-8-bromo-5- (trifluoromethyl) -2- (2,3,4-trifluorophenylamino) quinolin-4 (1H) -one;
44) 3-Acetyl-7,8-dichloro-2- (3,5-difluorophenylamino) quinolin-4 (1H) -one;
45) 3-Acetyl-8-chloro-2- (4-chloro-2-fluorophenylamino) -5-methylquinolin-4 (1H) -one;
46) 3-Acetyl-8-chloro-5-methyl-2- (2,3,4-trifluorophenylamino) quinolin-4 (1H) -one;
47) 3-Acetyl-8-bromo-2- (3,5-difluorophenylamino) -5- (trifluoromethyl) quinolin-4 (1H) -one;
48) 3-Acetyl-8-bromo-2- (3,5-dichlorophenylamino) -5- (trifluoromethyl) quinolin-4 (1H) -one;
49) 3-Acetyl-5,6,8-trichloro-2- (3-fluorophenylamino) quinolin-4 (1H) -one;
50) 3-Acetyl-2- (3,5-dichlorophenylamino) -5,8-difluoroquinolin-4 (1H) -one;
51) 3-Acetyl-8-chloro-2- (2,4-dibromophenylamino) -5-methylquinolin-4 (1H) -one;
52) 3-Acetyl-5,8-dichloro-2- (2,3,4-trifluorophenylamino) quinolin-4 (1H) -one;
53) 3-Acetyl-6-chloro-2- (2,4-dichlorophenylamino) -8-nitroquinolin-4 (1H) -one;
54) 3-Acetyl-8-bromo-5- (trifluoromethyl) -2- (2,4,5-trifluorophenylamino) quinolin-4 (1H) -one;
55) 3-Acetyl-2- (4-bromophenylamino) -5,8-dichloroquinolin-4 (1H) -one;
56) 5,8-Dichloro-2- (2,4-difluorophenylamino) -3-propionylquinolin-4 (1H) -one;
57) 5,8-Dichloro-2- (2,4-dibromophenylamino) -3-propionylquinolin-4 (1H) -one;
58) 3-Acetyl-2- (4-bromophenylamino) -6,8-difluoroquinolin-4 (1H) -one;
59) 3-Acetyl-5,6,8-trichloro-2- (2,4-dichlorophenylamino) quinolin-4 (1H) -one;
60) 3-Acetyl-5,6,8-trichloro-2- (phenylamino) quinolin-4 (1H) -one;
61) 3-Acetyl-6-chloro-2- (4-chloro-2-fluorophenylamino) -8-nitroquinolin-4 (1H) -one;
62) 5,8-Dichloro-2- (2,4-dibromophenylamino) -3-isobutyrylquinolin-4 (1H) -one;
63) 3-Acetyl-8-chloro-2- (3,4-dichlorophenylamino) -5-fluoroquinolin-4 (1H) -one;
64) 3-Acetyl-5,6,8-trichloro-2- (4-chlorophenylamino) quinolin-4 (1H) -one;
65) 3-Acetyl-8-chloro-2- (3,5-difluorophenylamino) -6-nitroquinolin-4 (1H) -one;
66) 3-Acetyl-5,8-dibromo-2- (4-chlorophenylamino) quinolin-4 (1H) -one;
67) 3-Acetyl-2- (3,5-difluorophenylamino) -7,8-difluoroquinolin-4 (1H) -one;
68) 2- (m-Tolylino) -3-acetyl-5,6,8-trichloroquinolin-4 (1H) -one; A pharmaceutical composition.
69) 3-Acetyl-2- (4-tert-butylphenylamino) -8-chloro-6-nitroquinolin-4 (1H) -one;
70) 8-Chloro-2- (2,3-dichlorophenylamino-3-isobutyryl-5-nitroquinolin-4 (1H) -one;
71) 8-Chloro-2- (2,4-dichlorophenylamino-3-isobutyryl-5-nitroquinolin-4 (1H)
72) a prophylactic or therapeutic agent for pneumonia which is selected from the group consisting of 3-acetyl-8-chloro-2- (3-fluorophenylamino) -6-nitroquinolin- A pharmaceutical composition.
The method according to claim 1,
Wherein said pharmaceutical composition has antibacterial activity against drug-resistant pneumococci.
The method according to claim 6,
A pharmaceutical composition for preventing or treating pneumonia, wherein the drug is erythromycin.
The method according to claim 6,
A pharmaceutical composition for preventing or treating pneumonia, wherein the pneumococcus is S. pneumoniae.
1. A health functional food composition for preventing or ameliorating pneumonia comprising, as an active ingredient, a compound represented by the following formula (1) or a pharmaceutically acceptable salt thereof:
[Chemical Formula 1]

(In the formula 1,
X is -NH-;
R ¹ is methyl, ethyl, isopropyl or cyclopropyl;
R ² , R ³ , R ⁴ , and R ⁵ are each independently hydrogen, fluoro, bromo, chloro, NO ₂ , methyl or trifluoromethyl;
R <^6> is methyl, tert-butyl, unsubstituted or substituted phenyl,
Wherein said substituted phenyl is substituted with one or more substituents selected from the group consisting of fluoro, bromo, chloro, methyl, tert-butyl or trifluoromethyl, methoxy and NO ₂ .
10. The method of claim 9,
Wherein said health functional food composition has antimicrobial activity against drug-resistant pneumococci.
11. The method of claim 10,
Wherein the drug is erythromycin. &Lt; RTI ID = 0.0 &gt; 18. &lt; / RTI &gt;