Patent Grant
7230105
1. Field of the Invention
The present invention relates to a new 9-aminoacridine derivative of the general formula (I)
wherein Y is a bond or
(wherein X is oxygen or sulfur, R1, R2, R3, R4 and R5 are independently hydrogen, halogen, nitro, amino, hydroxy, C1–C4 lower alkylhydroxy, C1–C4 lower alkoxy, R′ and R″ are independently C1–C4 alkyl or C1–C4 lower alkoxy, and Z is C1–C4 lower alkyl, C1–C4 lower alkoxy or C1–C4 lower alkylamino.
In the above definitions, C1–C4 lower alkyl means straight or branched alkyl groups such as methyl, ethyl, propyl, isopropyl, n-butyl, isobutyl, sec-butyl or the like.
C1–C4 lower alkoxy means methoxy, ethoxy, propoxy, isopropoxy, butoxy, isobutoxy, tert-butoxy or the like.
C1–C4 lower alkylamino means methylamino, ethylamino, propylamino, butylamino or the like.
2. Description of the Prior Art
WO 00/37447 describes 9-amnoacridine derivatives and process for the preparation thereof of the compounds of the formula (1)
wherein A is hydrogen or
(wherein X is oxygen or sulfur, R1, R2, R3, R4 and R5 are independently hydrogen, halogen, nitro, amino, hydroxy, C1–C4 lower alkylhydroxy, C1–C4 lower alkylamino, C1–C8 alkyl, C1–C4 lower alkoxy or C1–C4 lower alkyloxycarbonyl and m and n are independently an integer of 0, 1 or 2.), R6, R7, R8 and R9 are independently C1–C8 alkyl or C1–C4 lower alkoxy, and Y is hydrogen, amino, —N═CHR′ (wherein R′ is hydrogen, benzyl, C1–C8 alkyl or C1–C6 lower alamino),
(wherein R″ is hydrogen, benzyl, C1–C8 alkyl or C1–C6 lower alkylamino, and R′″ is hydrogen, benzyl, C1–C8 alkyl or amino protecting group) or
(wherein, X is as defined above, R1′, R2′, R3′, R4′ and R5′ are independently hydrogen, halogen, nitro, amino, hydroxy, C1–C4 lower alkylhydroxy, C1–C4 lower alkylamino, C1–C8 alkyl, C1–C4 lower alkoxy or C1–C4 lower alkyloxycarbonyl, and q and r are independently an integer of 0, 1 or 2) or its pharmaceutically acceptable salt, and process for the preparation thereof.
In the above compounds of the formula (I) wherein Y is
(R″ and R′″ are as defined above.), there may be isomers of l-form, d-form or racemic form.
However, the compound of the present invention does not describe in the WO 00/37447.
The inventors had studied for a long time to find new compounds having intensive antitumor activities. As a result, the inventors have found out that the compounds of the general formula (I), or acid addition salts thereof as defined above have not only prominent antitumor activities but also very low toxicities.
wherein Y is a bond or
(wherein X is oxygen or sulfur, R1, R2, R3, R4 and R5 are independently hydrogen, halogen, nitro, amino, hydroxy, C1–C4 lower alkylhydroxy, C1–C4 lower alkylamino, C1–C8 allyl or C1–C4 lower alkoxy, R′ and R″ are independently C1–C8 alkyl or C1–C4 lower alkoxy, and Z is C1–C4 lower alkyl, C1–C4 lower alkoxy or C1–C4 lower alkylamino.
Accordingly, an object of the invention is to provide a compound of the general formula (I) or acid addition salt thereof having not only prominent antitumor activity but also very low toxicity.
Another object of the invention is to provide a process for the preparation of the compound of the general formula (I) or acid addition salt thereof.
The compounds of the present invention can be mixed with pharmaceutically acceptable vehicles by a conventional method to give pharmaceutical preparations to be used for prevention or treatment of various kinds of tumors.
Therefore, the other object of the present invention is to provide pharmaceutical preparations containing an effective amount of a compound of the general formula (I) or acid addition salt thereof as an active ingredient.
Acids which can be reacted with the compound of the general formula (I) to form acid addition salt thereof are pharmaceutically acceptable inorganic acids, organic acids, amino acids or sulfonic acids; for example, inorganic acids such as hydrochloric acid, hydrobromic acid, sulfuric acid, phosphoric acid and nitric acid; organic acids such as formic acid, acetic acid, propionic acid, succinic acid, citric acid, maleic acid and malonic acid; amino acids such as serine, cysteine, cystine, asparagine, glutamine, lysine, arginine, tyrosine and proline; sulfonic acids such as methanesulfonic acid, ethanesulfonic acid, benzenesulfonic acid and toluenesulfonic acid.
Vehicles used in formulating pharmaceutical preparations containing the compound of the general formula (I) as an active ingredient are sweetening agents, binding agents, dissolving agents, aids for dissolution, wetting agents, emulsifying agents, isotonic agents, adsorbents, degrading agents, antioxidents, preservatives, lubricating agents, fillers, perfume or the like; for example may include lactose, dextrose, sucrose, mannitol, sorbitol, cellulose, glycine, silica, talc, stearic acid, stearin, magnesium stearate, calcium stearate, magnesium aluminum silicate, starch, gelatine, tragacanth gum, alginic acid, sodium alginate, methyl cellulose, sodium carboxy methyl cellulose, agar, water, ethanol, polyethylenglycol, polyvinyl pyrrolidone, sodium chloride, potassium chloride, orange essence, strawberry essence and vanilla aroma.
Daily dosage of the compound of the general formula (I) may be varied depending on age, sex and degree of disease, but preferably ling to 5,000 mg per day may be administered by once to several times.
The compound of the general formula (I) according to the present invention may be prepared by following schemes I, II.
wherein R1, R2, R3, R4 and R5, R′, R″, X, Y and Z are as defined above and
Y1 is hydrogen or the group of
The compound of the general formula (a) and (b) are reacted under the presence of condensing agent and acid in a conventional organic solvent to give effectively a comound of the general formula (I).
The reaction may be carried out preferably in a conventional organic solvent such as tetrahydrofuran, dichloromethane, chloroform, acetonitrile, dimethylformamide, pyridine, etc.
The reaction may be carried out preferably under the presence of condensing agent such as dicyclohexylcarbodiimide(DCC), HOBT or WSCD in a conventional acid such as inorganic acid or organic acid.
A compound of the general formula (a) or (b) is a known compound in J. Med. Chem., 1995, 38, 3226 or in PCT/KR99/00787 or can be prepared and used by a analogy method thereof.
The reaction may be carried out at a temperature between 3° C. and a boiling point of a solvent, preferably 25° C. and 50° C. for a time between 5 and 24 hours, preferably for a time between 10 and 24 hours.
Acid may be used 1˜1.5 equivalent, preferably 1˜1.1 equivalent.
wherein R1, R2, R3, R4, R5, R′, R″, X, Y and Z are as defined above and Y2 is —OH or the group of
The compound of the general formula (c) and (d) are reacted under the presence of condensing agent and acid in a conventional organic solvent to give effectively a comound of the general formula (I).
The reaction may be carried out preferably in a conventional organic solvent such as tetrahydrofuran, dichloromethane, chloroform, acetonitrile, dimethylformamide, pyridine, etc.
The reaction may be carried out preferably under the presence of condensing agent such as dicyclohexylcarbodiimide(DCC), HOBT or WSCD in a conventional acid such as inorganic acid or organic acid.
A compound of the general formula (c) or (d) is a known compound in J. Med. Chem., 1995, 38, 3226 or in PCT/KR99/00787 or can be prepared and used by a analogy method thereof.
The reaction may be carried out at a temperature between 3° C. and a boiling point of a solvent, preferably 25° C. and 50° C. for a time between 5 and 24 hours, preferably for a time between 10 and 24 hours.
Acid may be used 1˜1.5 equivalent, preferably 1˜1.1 equivalent.
Compounds of the general formula (I) were prepared according to the above-mentioned processes of the invention.
2-ethyl-6-methoxy-5-[(4-phenylpiperazine-1-carbonyl)amino]nicotinic acid(0.5 g, 1.24 mmole) was dissolved in pyridine(30 mL) and thereto DCC(0.26 g, 1.24 nmole), DMAP(0.15 g, 1.24 mmole) and N-[3-(acridine-9-yl-amino)-5-hydroxymethyl-phenyl]-2-aminopropaneamide were added. After stirring the resulting mixture for 24 hours at the room temperature. The resulting product was purified by column chromatography to give the titled compound.
yield: 68.2% m.p.: 218220° C. 1H NMR(DMSO-d6): 1.20(3H,t), 1.38(3H,d), 2.79(2H,q), 3.19(4H,m), 3.61(4H,m), 3.96(3H,s), 4.45(2H,s), 4.53(1H,m), 6.50(1H,m), 6.85(1H,t), 7.01(4H,d), 7.28(4H,m), 7.62(4H,m), 8.00(3H,d), 8.51(1H,d), 9.97(1H,s)
The same reaction procedure to the example 1 were carried out using 2-ethyl-5-{[4-(3,5-dimethylphenyl)-piperazine-1-carbonyl]-amino}-6-methoxy-nicotinic acid and N-[3-(acridine-9-yl-amino)-5-hydroxymethyl-phenyl]-2-aminopropaneamide to give the titled compound.
yield: 52.3% m.p. 205207° C.
1H NMR(DMSO-d6): 1.20(3H,t), 1.38(3H,d), 2.79(2H,q), 3.19(4H,m), 3.59(4H,m), 3.75(6H,s), 3.96(3H,s), 4.45(2H,s), 4.53(1H,m), 5.18(1H/m), 6.03(1H,s), 6.14(2H,s), 6.48(1H,s), 7.01(2H,m), 7.30(3H,m), 7.56(3H,m), 7.96(2H,d), 8.18(1H,m), 8.50(1H,d), 9.95(1H,s)
The same reaction procedure to the example 1 were carried out using 2-ethyl-5-{[4-(3,5-dimethoxyphenyl)-piperazine-1-carbonyl]-amino}-6-meth oxy-nicotinic acid and N-[3-(acridine-9-yl-amino)-5-hydroxymethyl-phenyl]-2-aminopropaneamide to give the titled compound.
yield: 49.1% m.p.: 231˜233° C. 1H NMR(DMSO-d6) 1.13(3H,t), 1.38(3H,d), 2.12(1H,s), 2.79(2H,q), 3.19(4H,m), 3.59(4H,m), 3.75(6H,s), 3.96(3H,s), 4.46(2H,s), 4.53(1H,m), 5.19(1H,m), 6.03(1H,s), 6.15(2H,s), 6.50(1H,s), 7.04(2H/m), 7.32(2H,s), 7.60(4H,m), 7.96(1H,s), 8.00(11H,s), 8.25(11H,m), 8.51(1H,d), 9.97(1H,s)
The same reaction procedure to the example 1 were carried out using 2-ethyl-5-{[4-(3,5-difluorophenyl)-piperazine-1-carbonyl]-amino}-6-methoxy-nicotinic acid and N-[3-(acridine-9-yl-amino)-5-hydroxymethyl-phenyl]-2-aminopropaneamide to give the titled compound.
yield: 48.7% m.p. 202˜204° C. 1H NMR(DMSO-d6): 1.20(3H,t), 1.38(3H,d), 2.78(2H,q), 3.30(4H,m), 3.59(4H,m), 3.96(3H,s), 4.45(2H,s), 4.53(1H,m), 5.20(1H,s), 6.54(2H,m), 6.69(2H,d), 7.09(2H,m), 7.33(2H,s), 7.61(4H,m), 7.94(1H,s), 8.04(1H,s), 8.25(1H,s), 8.51(1H,d), 9.99(1H,s)
The same reaction procedure to the example 1 were carried out using 2-ethyl-5-{[4-(3,5-dichlorophenyl)-piperazine-1-carbonyl]-amino}-6-methoxy-nicotinic acid and N-[3-(acridine-9-yl-amino)-5-hydroxymethyl-phenyl]-2-aminopropaneamide to give the titled compound.
yield: 47.8% m.p.: 184˜186° C. 1H NMR(DMSO-d6): 1.20(3H,t), 1.38(3H,d), 2.79(2H,q), 3.32(4H,m), 3.59(4H,m), 3.96(3H,s), 4.46(2H,s), 4.54(11H,m), 5.18(1H,s), 6.45(1H,s), 6.92(1H,s), 7.02(3H,s), 7.34(3H,m), 7.50(3H,m), 7.94(1H,s), 8.04(1H,s), 8.22(1H,m), 8.50(1H,m), 9.96(1H,s)
The same reaction procedure to the example 1 were carried out using 2-ethyl-5-{[4-(3-fluorophenyl)-piperazine-1-carbonyl]-amino}-6-methoxy-n icotinic acid and N-[3-(acridine-9-yl-amino)-5-hydroxymethyl-phenyl]-2-aminopropaneamide to give the titled compound.
yield: 53.4% m.p.: 208˜210° C. 1H NMR(DMSO-d6) 1.16(3H,t), 1.48(3H,d), 2.80(2H,q), 3.09(4H,s), 3.48(4H,m), 3.96(3H,s), 4.34(2H,s), 4.81(1H,m), 6.41(1H,m), 6.53(3H,m), 6.86(1H,m), 6.98(2H,m), 7.15(1H,m), 7.17(2H,m), 7.38(3H,m), 7.86(3H,m), 8.35(1H,m), 9.49(1H,s)
The same reaction procedure to the example 1 were carried out using 2-ethyl-5-{[4-(3-hydroxyphenyl)-piperazine-1-carbonyl]-amino}-6-methoxy-nicotinic acid and N-[3-(acridine-9-yl-amino)-5-hydroxymethyl-phenyl]-2-aminopropaneamide to give the titled compound.
yield: 41.9% m.p. 207˜209° C. 1H NMR(DMSO-d6): 1.21(3H,t), 1.49(3H,d), 2.81(2H,q), 3.18(4H,m), 3.60(4H,m), 4.02(3H,s), 4.52(2H,s), 4.75(1H,m), 6.41(3H,m), 6.67(1H,s), 7.06(2H,m), 7.16(2H,m), 7.24(1H,s), 7.35(1H,s), 7.47(1H,d), 7.58(2H,m), 7.86(2H,m), 8.08(2H,d), 8.36(1H,s), 9.55(1H,s)
The same reaction procedure to the example 1 were carried out using 2-ethyl-5-{[4-(3,4,5-trimethoxyphenyl)-piperazine-1-carbonyl]-amino}-6-methoxy-nicotinic acid and N-[3-(acridine-9-yl-amino)-5-hydroxymethyl-phenyl]-2-aminopropaneamide to give the titled compound.
yield: 44.3% m.p.: 205˜207° C. 1H NMR(DMSO-d6): 1.23(3H,t), 1.50(3H,d), 2.81(2H,q), 3.76(3H,s), 3.83(6H,s), 4.05(3H,s), 4.54(2H,s), 4.73(1H,m), 6.75(2H,m), 7.20(2H,m), 7.37(1H,s), 7.41(1H,s), 7.50(1H,d), 7.66(2H,m), 7.88(2H,m), 8.09(1H,s), 8.14(2H,m), 8.48(1H,s), 9.01(1H,s), 9.77(1H,s)
The same reaction procedure to the example 1 were carried out using 2-propyl-5-{[4-(3,5-dimethoxyphenyl)-piperazine-1-carbonyl]-amino}-6-methoxy-nicotinic acid and N-[3-(acridine-9-yl-amino)-5-hydroxymethyl-phenyl]-2-aminopropaneamide to give the titled compound.
yield: 41.2% m.p.: 220˜222° C. 1H NMR(DMSO-d6): 0.88(3H,t), 1.38(3H,d), 1.68(2H,m), 2.76(2H,q), 3.19(4H,m), 3.59(4H,m), 3.75(6H,s), 3.95(3H,s), 4.45(2H,s), 4.54(1H,m), 5.19(1H,s), 6.04(1H,s), 6.15(2H,s), 6.50(1H,s), 7.04(2H,m), 7.31(2H,s), 7.59(4H,m), 7.98(3H,d), 8.25(1H,m), 8.50(1H,d), 9.56(1H,s)
The same reaction procedure to the example 1 were carried out using 2-propyl-5-{[4-(3,5-dimethylphenyl)-piperazine-1-carbonyl]-amino}-6-methoxy-nicotinic acid and N-[3-(acridine-9-yl-amino)-5-hydroxymethyl-phenyl]-2-aminopropaneamide to give the titled compound.
yield: 42.3% m.p. 195˜197° C. 1H NMR(DMSO-d6): 0.88(3H,t), 1.38(3H,d), 1.67(2H,m), 2.25(6H,s), 2.76(2H,m), 3.15(4H,m), 3.36(6H,s), 3.59(4H,m), 3.95(3H,s), 4.45(2H,s), 4.54(1H,m), 5.19(1H,m), 6.49(2H,s), 6.62(2H,s), 7.05(2H,m), 7.31(2H,s), 7.58(3H,m), 7.96(3H,d), 8.23(1H,m), 8.50(1H,d), 9.96(1H,s)
The same reaction procedure to the example 1 were carried out using 5-{[4-(3,5-dimethoxy-phenyl)-piperazine-1-carbothionyl]-amino-2-methyl-6-methoxy-nicotinic acid and N-[3-(acridine-9-yl-amino)-5-hydroxy-methyl-phenyl]-2-aminopropaneamide to give the titled compound.
yield: 58.2% m.p.: 181˜183° C. 1H NMR(DMSO-d6): 1.40(3H,d), 2.54(3H,s), 3.28(4H,m), 3.75(6H,s), 3.90(3H,s), 4.07(4H,m), 4.45(2H,s), 4.55(1H,m), 5.18(1H,m), 6.03(1H,s), 6.15(2H,s), 6.49(1H,m), 7.03(2H,m), 7.31(3H,m), 7.60(2H,m), 7.67(2H,m), 8.25(2H,m), 8.52(1H,d), 9.08(1H,s), 9.99(1H,s)
The same reaction procedure to the example 1 were carried out using 5-{[4-(3,5-dimethoxy-phenyl)-piperazine-1-carbothionyl]-amino-2-ethyl-6-methoxy-nicotinic acid and N-[3-(acridine-9-yl-amino)-5-hydroxymethyl-phenyl]-2-aminopropaneamide to give the titled compound.
yield: 43.9% m.p.: 177˜179° C. 1H NMR(DMSO-d6): 1.20(3H,t), 1.43(3H,d), 2.82(2H,m), 3.19(2H,m), 3.29(2H,m), 3.79(6H,s), 3.93(3H,s), 4.12(4H,m), 4.38(1H,m), 4.45(1H,m), 4.60(1H,m), 6.25(1H,s), 6.58(3H,d), 7.08(3H,m), 7.45(2H,m), 7.84(6H,m), 8.34(1H,m), 8.72(1H,s), 9.77(1H,s)
The same reaction procedure to the example 1 were carried out using 5-{[4-(3,5-dimethoxy-phenyl)-piperazine-1-carbothionyl]-amino-2-propyl-6-methoxy-nicotinic acid and N-[3-(acridine-9-yl-amino)-5-hydroxy-methyl-phenyl]-2-aminopropaneamide to give the titled compound.
yield 46.5% m.p.: 168–170° C. 1H NMR(DMSO-d6): 0.90(3H,t), 1.38(3H,d), 1.69(2H,m), 2.83(2H,m), 3.28(4H,m), 3.75(6H,s), 3.91(3H,s), 4.13(4H,m), 4.46(2H,s), 4.55(1H,m), 6.03(1H,s), 6.15(2H,s), 6.53(1H,s), 7.08(3H,m), 7.31(2H,s), 7.60(3H,m), 7.66(2H,m), 7.76–8.35(2H,m), 8.53(1H,d), 9.07(1H,s), 9.99(1H,s)
The same reaction procedure to the example 1 were carried out using 5-{[4-(3,5-dimethyl-phenyl)-piperazine-1-carbothionyl]-amino-2-methyl-6-methoxy-nicotinic acid and N-[3-(acridine-9-yl-amino)-5-hydroxymethyl-phenyl]-2-aminopropaneamide to give the titled compound.
yield: 47.7% m.p. 198–200° C. 1H NMR(DMSO-d6): 1.21(3H,t), 1.41(3H,d), 2.30(6H,s), 2.82(2H,q), 3.17(2H,m), 3.27(2H,m), 3.90(3H,s), 4.07(4H,m), 4.32(2H,s), 4.45(1H,m), 4.60(1H,m), 6.25(1H,s), 6.58(3H,d), 7.08(3H,m), 7.45(2H,m), 7.84(6H,m), 8.34(1H,m), 8.72(1H,s), 9.77(1H,s)
The same reaction procedure to the example 1 were carried out using 2-ethyl-5-{[4-(3,5-dimethylphenyl)-piperazine-1-carbonyl]-amino}-6-methoxy-nicotinic acid and 2-amino-N-[3-hydroxymethyl-5-(2-methyl-acridine-9-yl-amino)-phenyl]-propioneamide to give the titled compound.
yield 51.3% m.p.: 164˜166° C. 1H NMR(DMSO-d6): 1.18(3H,t), 1.52(3H,d), 2.05(1H,s), 2.17(2H,m), 2.22(11H,s), 2.28(6H,s), 2.82(2H,m), 3.10(4H,m), 3.63(4H,m), 4.00(3H,s), 4.42(2H,s), 4.85(1H,m), 6.51(3H,m), 6.56(1H,s), 7.00(3H,m), 7.43(2H,m), 7.78(4H,m), 8.48(1H,m), 9.53(1H,s)
The sane reaction procedure to the example 1 were carried out using 2-ethyl-5-{[4-(3,5-dimethylphenyl)-piperazine-1-carbonyl]-amino}-6-methoxy-nicotinic acid and 2-amino-N-[3-(3,4-dimethyl-acridine-9-yl-amino)-5-hydroxymethyl-phenyl]-propioneamide to give the titled compound.
yield 53.9% m.p.: 176˜178° C. 1H NMR(DMSO-d6): 1.21(3H,t), 1.52(3H,d), 2.28(6H,s), 2.39(3H,s), 2.74(3H,s), 2.83(2H,q), 3.05(4H,m), 3.48(4H,m), 3.99(3H,s), 4.30(2H,s), 4.89(1H,m), 6.41(1H,m), 6.49(2H,s), 6.56(1H,s), 6.85(1H,m), 7.05(4H,m), 7.54(1H,m), 7.73(1H,m), 7.92(2H,m), 8.42(1H,s), 9.31(1H,s)
The same reaction procedure to the example 1 were carried out using 2-ethyl-5-{[4-(3,5-dimethylphenyl)-piperazine-1-carbonyl]-amino}-6-methoxy-nicotinic acid and 2-amino-N-[3-(4-methoxy-acridine-9-yl-amino)-5-hydroxymethyl-phenyl]-propioneamide to give the titled compound.
yield: 50.8% m.p.: 178˜179° C. 1H NMR(DMSO-d6): 1.18(3H,t), 1.50(3H,t), 2.27(6H,s), 2.82(2H,q), 3.12(4H,m), 3.53(4H,m), 3.98(3H,s), 4.14(1H,m), 4.42(2H,s), 4.81(1H,m), 6.52(4H,m), 6.89(4H,m), 7.18(2H,m), 7.41(3H,m), 7.93(1H,m), 8.37(1H,s), 9.33(1H,s)
2-ethyl-6-methoxy-5-[(4-phenylpiperazine-1-carbonyl)amino]nicotinic acid (6.48 g, 15.7 mmole) was dissolved in DMF (100 mL), thereto WSCD (3 g, 15.7 mmole) HOBT (2.12g, 15.7 mmole) and [3-(acridine-9-yl-amino)-5-aminophenyl]-methanol were added. The resulting mixture was stirred for 24 hours at the room temperature and the solvent used was removed under the reduced pressure. Then, the resulting product was purified by column chromatography to give the titled compound.
yield: 73.2% m.p.: 187˜189° C. 1H NMR(DMSO-d6): 1.24(3H,t), 2.82(2H,q), 3.02(4H,m), 3.62(4H,m), 3.99(3H,s), 4.49(2H,s), 5.28(1H,t), 6.85(2H,m), 7.02(2H,m), 7.27(4H,m), 7.45(1H,m), 7.55(2H,m), 7.77(4H,m), 8.03(2H,s), 8.09(2H,m), 10.39(1H,s)
The same reaction procedure to the example 18 were carried out using 2-ethyl-5-{[4-(3,5-dimethylphenyl)-piperazine-1-carbonyl]-amino}-6-methoxynicotinic acid and [3-(acridine-9-yl-amino)-5-aminophenyl]-methanol to give the titled compound.
yield: 69.5% m.p.: 178˜180° C. 1H NMR(DMSO-d6): 1.89(3H,t), 2.28(6H,s), 2.70(2H,q), 3.31(4H,m), 3.71(4H,m), 3.99(3H,s), 4.51(2H,s), 5.28(1H,t), 6.69(1H,s), 6.89(1H,s), 7.08(1H,s), 7.53(2H,m), 7.71(1H,s), 7.87(1H,s), 8.04(3H,m), 8.18(3H,m), 8.37(2H,m), 10.46(1H,s), 11.55(1H,s), 12.28(1H,s), 14.88(1H,s)
The same reaction procedure to the example 18 were carried out using 2-ethyl-5-{[4-(3,5-dimethoxyphenyl)-piperazine-1-carbonyl]-amino}-6-methoxynicotinic acid and [3-(acridine-9-yl-amino)-5-aminophenyl]-methanol to give the titled compound.
yield: 70.2% m.p. 170˜172° C. 1H NMR(DMSO-d6): 1.25(3H,t), 2.84(2H,q), 3.24(4H,m), 3.66(4H,m), 3.76(6H,s) 4.04(3H,s), 4.58(2H,s), 5.28(1H,t), 6.02(1H,s), 6.08(1H,s), 6.90(1H,s), 7.26(2H,m), 7.34(1H,m), 7.42(1H,m), 7.58(1H,s), 7.62(2H,m), 7.75(2H,m), 7.88(1H,d), 8.03(2H,m), 8.23(2H,m), 8.37(1H,s), 10.06(1H,s)
The same reaction procedure to the example 18 were carried out using 2-ethyl-5-{[4-(3,5-difluorophenyl)-piperazine-1-carbonyl]-amino}-6-methoxynicotinic acid and [3-(acridine-9-yl-amino)-5-aminophenyl]-methanol to give the titled compound.
yield: 68.8% m.p.: 184˜186° C. 1H NMR(DMSO-d6): 1.24(3H,t), 2.79(2H,q), 3.31(4H,m), 3.59(4H,m), 3.98(3H,s), 4.47(2H,s), 5.19(1H,t), 6.53(2H,m), 6.70(2H,d), 7.07(1H,m), 7.38(3H,m), 7.51(3H,m), 8.05(3H,m), 10.23(1H,s), 10.93(1H,s)
The same reaction procedure to the example 18 were carried out using 2-ethyl-5-{[4-(3,5-dichlorophenyl)-piperazine-1-carbonyl]-amino}-6-methoxynicotinic acid and [3-(acridine-9-yl-amino)-5-aminophenyl]-methanol to give the titled compound.
yield: 71.2% m.p.: 210˜212° C. 1H NMR(DMSO-d6) 1.25(3H,t), 2.83(2H,q), 3.30(4H,m), 3.66(4H,m), 4.03(3H,s), 4.53(2H,s), 5.41(1H,t), 6.63(1H,s), 6.79(3H,m), 7.11(2H,m), 7.23(1H,m), 7.42(1H,m), 7.55(4H,m), 7.71(1H,s), 8.09(2H,m), 8.32(1H,s), 9.74(1H,s)
The same reaction procedure to the example 18 were carried out using 2-ethyl-5-{[4-(3-fluorophenyl)-piperazine-1-carbonyl]-amino}-6-methoxynicotinic acid and [3-(acridine-9-yl-amino)-5-aminophenyl]-methanol to give the titled compound.
yield: 72.1% m.p.: 186˜188° C. 1H NMR(DMSO-d6): 1.25(3H,t), 2.84(2H,q), 3,28(4H,m), 3.67(4H,m), 4.04(3H,s), 4.55(2H,s), 5.39(1H,t), 6.63(2H,m), 6.69(2H,m), 7.22(4H,m), 7.33(1H,m), 7.44(1H,m), 7.63(4H,m), 8.17(2H,m), 8.37(1H,s), 9.66(1H,s)
The same reaction procedure to the example 18 were carried out using 2-ethyl-5-([4-(3-hydroxyphenyl)-piperazine-1-carbonyl]-amino}-6-methoxynicotinic acid and [3-(acridine-9-yl-amino)-5-aminophenyl-methanol to give the titled compound.
yield: 70.6% m.p. 196˜198° C. 1H NMR(DMSO-d6): 1.25(3H,t), 2.80(2H,q), 3.14(4H,m), 3.59(4H,m), 3.98(3H,s), 4.47(2H,s), 5.21(1H,t), 6.28(1H,d), 6.37(1H,s), 6.45(1H,d), 6.61(1H,m), 7.04(1H,t), 7.22(2H,m), 7.44(2H,m), 7.58(1H,m), 7.71(2H,m), 7.75(1H,m), 8.06(3H,m), 9.20(1H,s), 10.27(1H,s)
The same reaction procedure to the example 18 were carried out using 2-ethyl-5-{[4-(3,4,5-trimethoxyphenyl)-piperazine-1-carbonyl]-amino}-6-methoxynicotinic acid and [3-(acridine-9-yl-amino)-5-aminophenyl]-methanol to give the titled compound.
yield: 66.8% m.p.: 190˜192° C. 1H NMR(DMSO-d6) 1.26(3H,t), 2.85(2H,q), 3.14(4H,m), 3.59(4H,m), 3.78(3H,s), 3.84(6H,s), 4.11(3H,s), 4.57(2H,s), 5.34(1H,t), 6.71(1H,s), 6.77(2H,s), 7.21(2H,s), 7.35(1H,m), 7.65(4H,m), 7.88(3H,m), 8.04(1H,s), 8.14(2H,m), 8.56(1H,s), 8.92(1H,s), 9.07(1H,s)
The same reaction procedure to the example 18 were carried out using 5-{[4-(3,5-dimethoxyphenyl)-piperazine-1-carbonyl]-amino-2-methyl-6-met hoxynicotinic acid and [3-(acridine-9-yl-amino)-5-aminophenyl]-methanol to give the titled compound.
yield 69.8% m.p.: 176˜178° C. 1H NMR(DMSO-ck) 1.27(3H,t), 2.90(2H,q), 3.32(4H,m), 3.99(3H,s), 4.10(4H,m), 4.53(2H,s), 5.35(1H,s), 6.03(1H,s), 6.05(2H,d), 6.61(1H,s), 7.19(3H,m), 7.39(1H,m), 7.55(2H,m), 7.72(2H,m), 8.11(4H,m), 9.16(1H,s)
The same reaction procedure to the example 18 were carried out using 5-{[4-(3,5-dimethylphenyl)-piperazine-1-carbothionyl]-amino-2-methyl-6-m ethoxynicotinic acid and [3-(acridine-9-yl-amino)-5-aminophenyl]-methanol to give the titled compound.
yield 71.2% m.p. 170˜172° C. 1H NMR(DMSO-d6): 1.28(3H,t), 2.27(6H,s), 2.90(2H,q), 3.28(4H,m), 3.99(3H,s), 4.11(4H,m), 4.55(2H,s), 5.39(1H,t), 6.54(3H,m), 6.70(1H,s), 7.15(2H,m), 7.32(1H,m), 7.47(1H,m), 7.60(2H,m), 7.76(2H,m), 8.02(1H,s), 8.13(2H,m), 8.42(1H,s), 9.70(1H,s)
The same reaction procedure to the example 18 were carried out using 5-{[4-(3-fluorophenyl)-piperazine-1-carbonyl]-amino-2-methyl-6-methoxynicotinic acid and [3-(acridine-9-amino)-5-aminophenyl]-methanol to give the titled compound.
yield: 70.8% m.p.: 176˜178° C. 1H NMR(DMSO-d6): 1.26(3H,t), 2.87(2H,q), 3.36(4H,m), 3.94(3H,s), 4.09(4H,m), 4.46(2H,s), 5.21(1H,t), 6.61(2H,m), 6.82(2H,m), 7.26(4H,m), 7.46(1H,s), 7.66(3H,m), 7.71(1H,s), 8.05(2H,m), 9.10(1H,s), 10.27(1H,s)
The same reaction procedure to the example 18 were carried out using 5-{[4-(3,5-dichlorophenyl)-piperazine-1-carbothionyl]-amino-2-methyl-6-methoxynicotinic acid and [3-(acridine-9-yl-amino)-5-aminophenyl]-methanol to give the titled compound.
yield: 69.8% m.p.: 174˜176° C. 1H NMR(DMSO-d6) 1.26(3H,t), 2.86(2H,q), 3.42(4H,m), 3.93(3H1's), 4.07(4H,m), 4.47(2H,s), 5.2(1H,t), 6.54(1H,s), 6.91(1H,s), 6.99(2H,m), 7.11(2H,m), 7.43(2H,s), 7.58(3H,m), 7.72(2H,m), 8.03(2H,m), 9.09(1H,s), 10.24(1H,s)
The compounds prepared in the examples according to the present invention were tested for pharmacological activities against tumors. Antitumor activities of the compounds were tested in vitro against 5 kinds of human tumor cell lines and 2 kinds of leukemia tumor cell lines.
Methods and results of the tests are as follows.
Experimental 1: In vitro Antitumor Effect Against Human Tumor Cell Lines.
A. Tumor Cell Lines: A549 (human non-small lung cell)
It was found that the compounds of the present invention have the even or superior antitumor activities ED50 (μg/ml) than that of cisplatin, the control against human solid cancer cell lines.
Experimental 2: In Vitro Antitumor Effects Against Animal Leukemia Cells.
A. Material:
Tumor cell lines: P388 (mouse lymphoid neoplasma cell)
B. Method: Dye Exclusion Assay.
As the result of measurement of antitumor activities IC50(μg/ml) against P388 mouse cancer cells of the compounds according to the present invention, it was found that the compounds tested have equal to or higher antitumor activities than those of the control drug, mitomycin C.
Experimental 3: In Vivo Antitumor Effects Against Mouse Leukemia P388 Cells
A. Material of Experiment
The results are shown at the next table 3.
Experimental 4. Acute Toxicity Test (LD50):
a) Method: Litchfield-Wilcoxon Method.
6-week-old ICR mice (male 30±2.0 g) were fed freely with solid feed and water at room temperature, 23±1° C. and at humidity 60±5%. Sample drugs were injected into the abdominal cavities of mice. Each group comprised 6 mice. Observed during 14 days, external appearances and life or death thereof were recorded, and also, visible lesions were observed from dead mice by dissection. LD50 value was calculated by Litchfield-wilcoxon method.
b) Results
As shown in the following table, the compounds according to the present invention are predominantly safe in comparison with cisplatin, whereby much problems of known compounds such as restriction of dosage, unfavorable side effects by toxicity, etc. may be overcome considerably.
As described above, the compounds according to the present invention are much more safer and also have much superior antitumor activities to known anticancer drugs, and accordingly the compounds are expected to be useful as a new anticancer drug.
| Filing Document | Filing Date | Country | Kind | 371c Date |
|---|---|---|---|---|
| PCT/KR02/00392 | 3/7/2002 | WO | 00 | 9/7/2004 |
| Publishing Document | Publishing Date | Country | Kind |
|---|---|---|---|
| WO03/074490 | 9/12/2003 | WO | A |
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| 4575553 | Kavadias et al. | Mar 1986 | A |
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| WO9105770 | May 1991 | WO |
| WO 0037447 | Jun 2000 | WO |
| Number | Date | Country | |
|---|---|---|---|
| 20050222167 A1 | Oct 2005 | US |
