Embodiment
Below in conjunction with embodiment the present invention is further set forth but be not limitation of the present invention; All technology that realizes based on foregoing of the present invention all belong to scope of the present invention.
Embodiment 16, the preparation of 7-dimethoxy-4 '-(thiazole-2-sulfenyl) quinazoline
The general reactions steps of preparation 4-arylthio quinazoline derivant is as follows:
1, with quinazolinone A (48.5mmol) and POCl
3(42ml, 458.8mmol) the stirring and refluxing reaction is 2 hours, and the question response liquid cooling is poured in the frozen water to room temperature, transfers pH to neutral with 20%NaOH, adds methylene dichloride (DCM) extraction separatory, and organic phase is spin-dried for and obtains white solid B, is directly used in next step reaction.
2, under the stirring at room, in butanone (30ml) suspension of C (2.8mmol), add K
2CO
3(8.0mmol), stirring reaction is 10 minutes under the room temperature, adds B (2.7mmol) again, is warming up to 80-85 ℃ of reaction 4 hours, the cooling reaction solution, and water and methylene dichloride (DCM) extraction separatory is spin-dried for organic layer and obtains 4-arylthio quinazoline derivant head product.Obtain pure product with ethanol (30ml) recrystallization.
By the method for preparing the general reactions steps of 4-arylthio quinazoline derivant, wherein A is 6,7-dimethoxyquinazoline-4-ketone, and C is the 2-thyroidan, makes crude product (1) 810mg, the crude product productive rate is 99.3%.Obtain 700mg, recrystallization productive rate 85.8% with ethanol (30ml) recrystallization.
1H?NMR(400MHz,DMSO-d
6):δ8.88(s,1H),8.06(d,J=3.2Hz,1H),8.03(d,J=3.2Hz,1H),7.40(s,1H),7.29(s,1H),4.00(s,6H)ppm;
13C?NMR(100MHz,DMSO-d
6):δ162.4,156.1,153.8,151.6,150.5,146.0,143.0,125.3,117.4,107.1,100.7,56.3,56.1ppm;
ESI-MS(m/z,%)306.1(M+H)
+。
Embodiment 26, the preparation of 7-dimethoxy-4 '-(thiophene-2-sulfenyl) quinazoline
By the method for preparing the general reactions steps of 4-arylthio quinazoline derivant, wherein A is 6,7-dimethoxyquinazoline-4-ketone, and C is the 2-mercapto-thiophene, makes crude product (2) 410mg, productive rate is 92.0%.Obtain 360mg with ethyl alcohol recrystallization, recrystallization productive rate 80.5%.
1H?NMR(400MHz,DMSO-d
6):δ8.74(s,1H),7.95(d,J=5.2Hz,1H),7.47(d,J=3.6Hz,1H),7.35(s,1H),7.31(s,1H),7.25(t,J=4.4Hz,1H),3.99(s,6H)ppm;
13C?NMR(100MHz,DMSO-d
6):δ165.6,155.8,152.2,150.3,145.8,137.7,133.9,128.2,123.3,117.4,107.0,100.6,56.2,56.0ppm;
ESI-MS(m/z,%)305.0(M+H)
+。
Embodiment 36, the preparation of 7-dimethoxy-4 '-(1,3,4-thiadiazoles-2-sulfenyl) quinazoline
By the method for preparing the general reactions steps of 4-arylthio quinazoline derivant, wherein A is 6, and 7-dimethoxyquinazoline-4-ketone, C are 2-sulfydryl-1,3, and the 4-thiadiazoles makes crude product (3) 350mg, and productive rate is 85.5%.Obtain 200mg with ethyl alcohol recrystallization, recrystallization productive rate 48.9%.
1H?NMR(400MHz,CDCl
3):δ9.33(s,1H),8.97(s,1H),7.37(s,1H),7.23(s,1H),4.09(d,J=5.6Hz,6H)ppm;
ESI-MS(m/z,%)307.2(M+H)
+。
Embodiment 46, the preparation of 7-dimethoxy-4 '-(4-methylthiazol-2-sulfenyl) quinazoline
By the method for preparing the general reactions steps of 4-arylthio quinazoline derivant, wherein A is 6, and 7-dimethoxyquinazoline-4-ketone, C are 4-methyl-2-thyroidan, make crude product (4) 300mg, and productive rate is 82.2%.Obtain 150mg with ethyl alcohol recrystallization, recrystallization productive rate 41.9%.
1H?NMR(400MHz,CDCl
3):δ8.88(s,1H),7.29(s,1H),7.24(s,1H),7.15(d,J=1.2Hz,1H),4.05(s,6H),2.53(d,J=0.8Hz,3H)ppm;
ESI-MS(m/z,%)318.3(M+H)
+。
The preparation of embodiment 5 7-methoxyl group-6-(2-piperidines oxyethyl group)-4-(thiazole-2-sulfenyl) quinazoline
By the method for preparing the general reactions steps of 4-arylthio quinazoline derivant, wherein A is 7-methoxyl group-6-(2-(piperidino) oxyethyl group) quinazoline-4-one, and C is the 2-thyroidan, makes solid (5) 187mg, and overall yield is 54.2%.
1H?NMR(400MHz,DMSO-d
6):δ8.88(s,1H),8.06(d,J=3.2Hz,1H),8.03(d,J=3.2Hz,1H),7.40(s,1H),7.38(s,1H),4.31(t,J=6.0Hz,2H),4.00(s,3H),2.75(t,J=5.8Hz,2H),2.48(broad,3H),1.84(s,1H),1.50-1.55(m,4H),1.39-1.40(m,2H)ppm;
ESI-MS(m/z,%)403.03(M+H)
+。
The preparation of embodiment 67-methoxyl group-6-(2-morpholine oxyethyl group)-4-(thiazole-2-sulfenyl) quinazoline
By the method for preparing the general reactions steps of 4-arylthio quinazoline derivant, wherein A is 7-methoxyl group-6-(2-morpholinyl oxyethyl group) quinazoline-4-one, and C is the 2-thyroidan, obtains solid (6) 100mg, and overall yield is 36.8%.
1H?NMR(400MHz,DMSO-d
6):δ8.88(s,1H),8.06(d,J=3.6Hz,1H),8.03(d,J=3.2Hz,1H),7.40(s,1H),7.36(s,1H),4.33(t,J=5.8Hz,2H),4.00(s,3H),3.61(t,J=4.4Hz,4H),2.80(t,J=5.8Hz,2H),2.51(t,J=1.8Hz,4H)ppm;
ESI-MS(m/z,%)405.01(M+H)
+。
The preparation of embodiment 77-methoxyl group-6-(2-tetramethyleneimine oxyethyl group)-4-(thiazole-2-sulfenyl) quinazoline
By the method for preparing the general reactions steps of 4-arylthio quinazoline derivant, wherein A is 7-methoxyl group-6-(2-(1-Pyrrolidine base) oxyethyl group) quinazoline-4-one, and C is the 2-thyroidan
According to embodiment 1 same procedure, obtain solid (7) 92mg, overall yield is 42.0%.
1H?NMR(400MHz,DMSO-d
6):δ8.88(s,1H),8.06(d,J=3.2Hz,1H),8.03(d,J=3.2Hz,1H),7.41(s,1H),7.36(s,1H),4.31(t,J=5.6Hz,2H),4.01(s,3H),2.91(t,J=5.6Hz,2H),2.59(s,4H),1.71(s,4H)ppm;
ESI-MS(m/z,%)388.99(M+H)
+。
The preparation of embodiment 87-methoxyl group-6-(3-(N, N-dimethyl) propoxy-)-4-(thiazole-2-sulfenyl) quinazoline
By the method for preparing the general reactions steps of 4-arylthio quinazoline derivant, wherein A is 6-(3-dimethylamino propoxy-)-7-methoxyl group quinazoline-4-one, and C is the 2-thyroidan, obtains solid (8) 90mg, and overall yield is 46.0%.
1H?NMR(400MHz,DMSO-d
6):δ8.87(s,1H),8.06(d,J=3.2Hz,1H),8.03(d,J=3.2Hz,1H),7.39(s,1H),7.28(s,1H),4.22(t,J=6.6Hz,2H),4.01(s,3H),2.41(t,J=7.0Hz,2H),2.18(s,6H),1.96(m,J=6.8Hz,2H)ppm;
ESI-MS(m/z,%)376.99(M+H)
+。
Embodiment 96, the preparation of 7-two (2-methoxy ethoxy)-4-(thiazole-2-sulfenyl) quinazoline
By the method for preparing the general reactions steps of 4-arylthio quinazoline derivant, wherein A is 6,7-dimethoxy oxyethyl group quinazoline-4-ketone, and C is the 2-thyroidan, makes crude product (9) 200mg, productive rate is 74.5%.Obtain 135mg with ethyl alcohol recrystallization, recrystallization productive rate 50.5%.
1H?NMR(400MHz,CDCl
3):δ8.89(s,1H),7.97(d,J=3.2Hz,1H),7.61(d,J=3.2Hz,1H),7.33(s,1H),4.33(m,J=2.2Hz,4H),3.89(m,J=4.4Hz,4H),3.50(d,J=7.6Hz,6H)ppm;
ESI-MS(m/z,%)393.89(M+H)
+。
Embodiment 106, the preparation of 7-two (2-methoxy ethoxy)-4-(1,3,4-thiadiazoles-2-sulfenyl) quinazoline
By the method for preparing the general reactions steps of 4-arylthio quinazoline derivant, wherein A is 6,7-dimethoxy oxyethyl group quinazoline-4-ketone, and C is a 2-sulfenyl-1,3, and the 4-thiadiazoles makes crude product (10) 300mg, and productive rate is 79.3%.Obtain 165mg with ethyl alcohol recrystallization, recrystallization productive rate 43.6%.
1H?NMR(400MHz,CDCl
3):δ9.86(s,1H),8.94(s,1H),7.46(s,1H),7.40(s,1H),4.38(q,J=4.4Hz,4H),3.78(q,J=4.8Hz,4H),3.37(d,J=7.6Hz,6H)ppm;
ESI-MS(m/z,%)417.08(M+Na)
+。
The preparation of embodiment 112-(4-(6, the 7-dimethoxyquinazoline) sulfenyl)-4-methylthiazol-5-(N-(3-chloro-phenyl-)) ethanamide
By the method for preparing the general reactions steps of 4-arylthio quinazoline derivant, wherein A is 6, and 7-dimethoxyquinazoline-4-ketone, C are N-(3-chloro-phenyl-)-2-(2-sulfydryl-4-methylthiazol-5-yl) ethanamide, obtain target product (11) 167mg, productive rate is 51.8%.
1H?NMR(400MHz,DMSO-d
6):δ10.52(s,1H),8.86(s,1H),7.82(s,1H),7.45(d,J=8.4Hz,1H),7.34-7.39(m,2H),7.29(s,1H),7.13(d,J=7.6Hz,1H),4.00(s,8H),2.39(s,3H)ppm;
ESI-MS(m/z,%)485.00(M-H)
-.
The preparation of embodiment 12 2-(4-(6, the 7-dimethoxyquinazoline) sulfenyl)-4-methylthiazol-5-(N-(3-trifluoromethyl)) ethanamide
By the method for preparing the general reactions steps of 4-arylthio quinazoline derivant, wherein A is 6, and 7-dimethoxyquinazoline-4-ketone, C are 2-(2-sulfydryl-4-methylthiazol-5-yl)-N-(3-trifluoromethyl) ethanamide, obtain product (12) 153mg, productive rate is 44.5%.
1H?NMR(400MHz,DMSO-d
6):δ10.67(s,1H),8.87(s,1H),8.11(s,1H),7.78(d,J=7.6Hz,1H),7.58(t,J=8.0Hz,1H),7.40-7.44(m,2H),7.29(s,1H),4.04(s,2H),4.00(s,6H),2.40(s,3H)ppm;
ESI-MS(m/z,%)519.00(M-H)
-。
The preparation of embodiment 13 2-(4-(6, the 7-dimethoxyquinazoline) sulfenyl)-4-methylthiazol-5-(N-(4-phenyl methyl ketone amino)) ethanamide
By the method for preparing the general reactions steps of 4-arylthio quinazoline derivant, wherein A is 6, and 7-dimethoxyquinazoline-4-ketone, C are N-(4-acetamido phenyl)-2-(2-sulfydryl-4-methylthiazol-5-yl) ethanamide, obtain product (13) 232mg, productive rate is 57.0%.
1H?NMR(400MHz,DMSO-d
6):δ10.27(s,1H),9.90(s,1H),8.86(s,1H),7.51(s,4H),7.39(s,1H),7.28(s,1H),4.00(s,6H),3.96(s,2H),2.40(s,3H),2.02(s,3H)ppm;
ESI-MS(m/z,%)508.00(M-H)
-。
The preparation of embodiment 14 2-(4-(6, the 7-dimethoxyquinazoline) sulfenyl)-4-methylthiazol-5-(N-(4-benzyl chloride amido)) ethanamide
By the method for preparing the general reactions steps of 4-arylthio quinazoline derivant, wherein A is 6, and 7-dimethoxyquinazoline-4-ketone, C are N-(4-benzyl chloride base)-2-(2-sulfydryl-4-methylthiazol-5-yl) ethanamide, obtain product (14) 153mg, productive rate is 48.0%.
1H?NMR(400MHz,DMSO-d
6):δ8.85(s,1H),8.77(s,1H),7.39(d,J=7.2Hz,3H),7.30(d,J=8.0Hz,3H),4.30(d,J=4.8Hz,2H),4.00(s,6H),3.81(s,2H),2.35(s,3H)ppm;
ESI-MS(m/z,%)500.96(M+H)
+。
The preparation of embodiment 152-(4-(6, the 7-dimethoxyquinazoline) sulfenyl)-4-methylthiazol-5-(N-(3, the 5-dichlorophenyl)) ethanamide
By the method for preparing the general reactions steps of 4-arylthio quinazoline derivant, wherein A is 6,7-dimethoxyquinazoline-4-ketone, C is N-(3, the 5-dichlorophenyl)-and 2-(2-sulfydryl-4-methylthiazol-5-yl) ethanamide, obtain product (15) 110mg, productive rate is 32.3%.
1H?NMR(400MHz,DMSO-d
6):δ10.68(s,1H),8.87(s,1H),7.67(s,2H),7.40(s,1H),7.30(d,J=8.4Hz,2H),4.01(d,J=7.6Hz,8H),3.96(s,2H),2.39(s,3H)ppm;
ESI-MS(m/z,%)520.91(M+H)
+。
The preparation of embodiment 16 2-(4-(6,7-two (2-methoxy ethoxy) quinazoline) sulfenyl)-4-methylthiazol-5-(N-(3-trifluoromethyl)) ethanamide
By the method for preparing the general reactions steps of 4-arylthio quinazoline derivant, wherein A is 6, and 7-dimethoxy oxyethyl group quinazoline-4-ketone, C are 2-(2-sulfydryl-4-methylthiazol-5-yl)-N-(3-trifluoromethyl) ethanamide, obtain product (16) 119mg, productive rate is 36.8%.
1H?NMR(400MHz,DMSO-d
6):δ10.67(s,1H),8.86(s,1H),8.11(s,1H),7.78(d,J=8.0Hz,1H),7.58(t,J=8.0Hz,1H),7.43(d,J=6.8Hz,2H),7.35(s,1H),4.36(t,J=2.2Hz,4H),4.03(s,2H),3.77(q,J=2.2Hz,4H),3.36(d,J=5.6Hz,6H),2.40(s,3H)ppm;
ESI-MS(m/z,%)607.22(M-H)
-。
The preparation of embodiment 17 2-(4-(6,7-two (2-methoxy ethoxy) quinazoline) sulfenyl)-4-methylthiazol-5-(N-(4-trifluoromethyl)) ethanamide
By the method for preparing the general reactions steps of 4-arylthio quinazoline derivant, wherein A is 6, and 7-dimethoxy oxyethyl group quinazoline-4-ketone, C are 2-(2-sulfydryl-4-methylthiazol-5-yl)-N-(4-trifluoromethyl) ethanamide, obtain product (17) 160mg, productive rate is 49.0%.
1H?NMR(400MHz,DMSO-d
6):δ10.69(s,1H),8.85(s,1H),7.82(d,J=8.4Hz,2H),7.70(d,J=8.8Hz,2H),7.42(s,2H),7.35(s,1H),4.36(d,J=4.4Hz,4H),4.05(s,2H),3.77(q,J=4.0Hz,4H),3.36(d,J=6.0Hz,6H),2.40(s,3H)ppm;
ESI-MS(m/z,%)607.22(M-H)
-。
The preparation of embodiment 18 2-(4-(6,7-two (2-methoxy ethoxy) quinazoline) sulfenyl)-4-methylthiazol-5-(N-(3-chloro-phenyl-)) ethanamide
By the method for preparing the general reactions steps of 4-arylthio quinazoline derivant, wherein A is 6, and 7-dimethoxy oxyethyl group quinazoline-4-ketone, C are 2-(2-sulfydryl-4-methylthiazol-5-yl)-N-(3-chloro-phenyl-) ethanamide, obtain product (18) 200mg, productive rate is 62.3%.
1H?NMR(400MHz,DMSO-d
6):δ10.52(s,1H),8.85(s,1H),7.82(t,J=1.8Hz,1H),7.42-7.46(m,2H),7.38(s,1H),7.34-7.36(m,1H),7.13(dd,J=0.8Hz,1H),4.35(m,J=2.9Hz,4H),4.01(s,2H),3.77(m,J=3.2Hz,4H),3.36(d,J=6.0Hz,6H),2.39(s,3H)ppm;
ESI-MS(m/z,%)573.02(M-H)
-。
The preparation of embodiment 19 2-(4-(6,7-two (2-methoxy ethoxy) quinazoline) sulfenyl)-4-methylthiazol-5-(N-(3, the 5-xylyl)) ethanamide
By the method for preparing the general reactions steps of 4-arylthio quinazoline derivant, wherein A is 6,7-dimethoxy oxyethyl group quinazoline-4-ketone, C is 2-(2-sulfydryl-4-methylthiazol-5-yl)-N-(3, the 5-3,5-dimethylphenyl) ethanamide obtains product (19) 210mg, and productive rate is 68.6%.
1H?NMR(400MHz,DMSO-d
6):δ10.17(s,1H),8.85(s,1H),7.42(s,2H),7.35(s,1H),7.22(s,2H),6.71(s,1H),4.36(d,J=4.0Hz,4H),3.96(s,2H),3.77(d,J=4.0Hz,4H),3.36(d,J=6.0Hz,6H),2.39(s,3H),2.23(s,6H)ppm;
ESI-MS(m/z,%)567.02(M-H)
-。
The preparation of embodiment 20 2-(4-(6,7-two (2-methoxy ethoxy) quinazoline) sulfenyl)-5-(N-(3-chloro-phenyl-) urea) thiadiazoles
By the method for preparing the general reactions steps of 4-arylthio quinazoline derivant, wherein A is 6,7-dimethoxy oxyethyl group quinazoline-4-ketone, C is 1-(3-chloro-phenyl-)-3-(5-sulfydryl-1,3,4-thiadiazoles-2-yl) urea, obtain product (20) 85mg, productive rate is 15.7%.
1H?NMR(400MHz,DMSO-d
6):δ11.41(s,1H),9.34(s,1H),8.89(s,1H),7.73(s,1H),7.45(s,1H),7.38(broad,3H),7.14(s,1H),4.38(d,J=4.4Hz,4H),3.78(q,J=4.8Hz,4H),3.37(d,J=7.6Hz,6H)ppm;
ESI-MS(m/z,%)563.00(M-H)
-。
The FLT3 kinase inhibiting activity test experience of embodiment 21 compounds 1
1, experimental technique
Compound 1 is dissolved in gradient concentration among 100% the DMSO as sample to be tested, then, the FLT3 of the sample to be tested of different concns and 5-10mU (people source) is blended in (working fluid composition: 8mM MOPS, 0.2mM EDTA in the 25ul working fluid, 50 μ M EAIYAAPFAKKK (small peptide), pH7.0).Behind the concussion mixing, add Mg[γ-33P-ATP] begin reaction behind the mixture.At room temperature hatched 40 minutes, and added 3% phosphoric acid solution termination reaction, reaction solution is dropped on the P30 filter membrane pad again, and with 75mM phosphoric acid solution wash-out three times (each 5 minutes).At last, dry after embathing with methyl alcohol and carry out the radioactivity scintillation counting and detect.Detected result sees Table 1 and Fig. 1.
2. result
1 couple of FLT3 of table 1 compound and the active (IC of other common kinase whose inhibition
50)
Kinases |
??IC
50(nM)
|
Kinases |
??IC
50(nM)
|
??FLT3 |
??7 |
??Lck |
??>10000 |
??KIT |
??>10000 |
??Met |
??>10,000 |
??FMS |
??10,180 |
??RAF1 |
??>10,000 |
??PDGFR |
??>10,000 |
??Syk |
??>10000 |
??PDGFR |
??>10,000 |
??Pim-1 |
??>10,000 |
??FLT1 |
??9,046 |
??PLK1 |
??>10,000 |
??KDR |
??5880 |
??PLK3 |
??>10,000 |
??FLT4 |
??3,548 |
??EGFR |
??>10000 |
??Aurora?A |
??3874 |
??CDK1 |
??>10000 |
??Aurora?B |
??993 |
??CDK2 |
??>10000 |
??IGF-1R |
??>10000 |
??CHK1 |
??>10000 |
Activity data shows in the table 1, the half-inhibition concentration (IC of 1 couple of FLT3 of compound
50) 7nM, lower or almost do not have an activity (IC to other common kinase whose inhibition activity
50>10000nM).Show further also that by Fig. 1 along with drug level increases, the inhibition activity of 1 couple of FLT3 of compound is obvious more, has tangible dose-dependently.
The tumor cell in vitro proliferation inhibition test of embodiment 224-arylthio quinazoline derivant
1, experiment material
1.1 main agents
(InvitrogenCorporation, USA), the IMDM substratum is available from ATCC (American Type CultureCollection) available from Gibco BRL company for RPMI-1640, DMEM, foetal calf serum, pancreatin etc.Thiazole bromide blue tetrazolium (MTT), dimethyl sulfoxide (DMSO) (DMSO) are Sigma company (USA) product.4-arylthio quinazoline series derivates is synthetic by the contriver, is mixed with the 20mg/ml storage liquid with 100%DMSO during experiment in vitro, puts-20 ℃ of refrigerators and keeps in Dark Place standbyly, faces the time spent to be diluted to desired concn with complete culture solution.
1.2 clone and cultivation
Used human hepatoma cell strain (HepG2), Human Prostate Cancer Cells strain (PC-3), human lung carcinoma cell line (A549), human colon cancer cell strain (HCT-116), people's chronic myelogenous leukemia cell strain (K562), human breast cancer cell strain (MCF-7), person monocytic cell's leukemia cell line (Raji), people's malignant melanoma cell strain (A375), the people's acute myeloid leukaemia cell strain (MV4-11) of this experiment all purchased the ATCC company in the U.S., preserved by this laboratory.
Human hepatoma cell strain (HepG2), Human Prostate Cancer Cells strain (PC-3), human colon cancer cell strain (HCT-116) and human breast cancer cell strain (MCF-7) are with containing the DMEM perfect medium of 10% foetal calf serum, 100U/ml penicillin, 100 μ g/ml Streptomycin sulphates at 5%CO
2, cultivate under 37 ℃ of conditions.Human lung carcinoma cell line (A549), people's chronic myelogenous leukemia cell strain (K562), person monocytic cell's leukemia cell line (Raji) and people's malignant melanoma cell strain (A375) are with containing the RPMI-1640 perfect medium of 10% foetal calf serum, 100U/ml penicillin, 100 μ g/ml Streptomycin sulphates at 5%CO
2, under 37 ℃ of conditions.People's acute myeloid leukaemia cell strain (MV4-11) (annotate: MV4-11 is the FLT3-ITD mutant clone, and other cell strains all do not have the FLT3-ITD sudden change) is with containing the IMDM perfect medium of 10% foetal calf serum, 100U/ml penicillin, 100 μ g/ml Streptomycin sulphates at 5%CO
2, under 37 ℃ of conditions.
2 experimental techniques and result
2.1 experimental technique (mtt assay)
Adjusting cell concn with complete culture solution is 1-2 * 10
4The cell suspension of individual/ml, be inoculated in 96 orifice plates, every hole 200 μ l cell suspensions, overnight incubation, handle cell with the 4-arylthio quinazoline derivant of gradient concentration respectively and (directly use the substratum suspendible cell that contains the different concns compound for suspension cell next day, and the 3-10 that its cell starting point concentration is an attached cell doubly), establish the negative control group and the isopyknic solvent control group that do not contain medicine simultaneously, DMSO concentration is 0.1%, and each dosage group is established 3 multiple holes, at 37 ℃, 5%CO
2Cultivate under the condition.After 48 hours, every hole adds 5mg/ml MTT reagent 20 μ l, continues to cultivate 2-4h, abandons supernatant, adds DMSO150 μ L again, vibration mixing 15min, and (λ=570nm) measure absorbancy (A) value (the A value is directly proportional with viable count) gets its mean value with microplate reader.Relative cell proliferation inhibition rate=(control group A 570-experimental group A570)/control group A 570 * 100%.Experiment repeats 3 times at least.Experimental data represents that with mean the data statistics data adopts the t check, and there is statistical significance P<0.05 for difference.Below each compound on cell proliferation restraining effect all represent with IC50 or inhibiting rate.Detected result sees Table 2 and Fig. 2, Fig. 3 and Fig. 4.
2.2 experimental result
The on cell proliferation restraining effect of the compound of table 2 embodiment 1-20 on different tumor cell lines
Experimental result shows that most of cell strain MV4-11 to FLT3 sudden change high expression level has obvious growth to suppress IC among the compound 1-20
50Generally below 2M.And they are more weak or unrestraint is active to the restraining effect of other five kinds of tumor cell lines, show the cell strain MV4-11 selective restraining effect of these compounds to FLT3 sudden change high expression level.Show further also that by Fig. 2, Fig. 3, Fig. 4 along with drug level increases, cell inhibitory effect is obvious more, and obviously the FLT3 mutant cell had selectivity and a dose-dependently.