Novel NAMPT and IDO dual inhibitor, and preparation method and medical applications thereof
A dual inhibitor, a new type of technology, applied in the direction of antineoplastic drugs, drug combinations, organic chemistry, etc., can solve the problems of high toxicity and side effects, weak curative effect, etc.
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Embodiment 1
[0097] (Z)-N-(2-((4-(N-(3-bromo-4-fluorophenyl)-N'-hydroxymethylimidyl)-1,2,5-oxadiazol-3-yl )amino)ethyl)imidazol[1,2-a]pyridine-6-carboxamide preparation
[0098] (1) Preparation of (Z)-4-amino-N'-hydroxyl-N-(3-bromo-4-fluorophenyl)-1,2,5-oxadiazole-3-methylimidium
[0099]
[0100] At 0°C, acetic acid (5Ml), hydrochloric acid (4N) (5mL), NaNO 2(2.42g, 34.96mmol) in water (5mL) solution, warmed up to room temperature and reacted for 18h, added ethyl acetate (25ml), separated layers, extracted the aqueous phase with ethyl acetate (2*25ml), combined the organic phases, and used saturated Wash with brine (25 mL), dry over anhydrous sodium sulfate, and concentrate to give Intermediate 2 (4.5 g). To a solution of compound 2 (4.5 g) and 3-bromo-4-fluoroaniline (11.8 g, 62.0 mmol) in methanol (20 ml) was added NaHCO under nitrogen protection 3 (7.8g, 93.0mmol) in water (20ml), react at 50°C for 12 hours, TLC detects that the reaction is complete, concentrate, add ethyl acetat...
Embodiment 2
[0111] The difference with Example 1 is: the N-Boc-2-chloroethylamine in the step (2) of the synthetic method step is replaced by N-Boc-3-chloropropylamine, and the obtained (Z)-N-(2 -((4-(N-(3-bromo-4-fluorophenyl)-N'-hydroxymethylimidyl)-1,2,5-oxadiazol-3-yl)amino)propyl)imidazole[ 1,2-a] The structural formula of pyridine-6-carboxamide is as follows:
[0112]
[0113] Its H NMR spectrum is: 1 H NMR(400MHz,DMSO):δ11.06(s,1H),9.86(s,1H),8.83(s,1H),8.44(s,1H),7.71(d,J=3.6Hz,1H), 7.65(m,1H),7.46(s,2H),6.93(m,1H),6.76(m,1H),6.64(m,1H),6.05(s,1H),3.35(m,2H),3.05 (m,2H),1.93(m,2H)ppm.
[0114] Its carbon spectrum is: 13 C NMR (125MHz, DMSO): δ165.8, 1634.5, 155.3, 147.2, 145.2, 143.2, 138.4, 134.2, 129.3, 119.7, 117.2, 113.2, 110.6, 42.1, 41.2, 27.8.
[0115] Its mass spectrum is: MS (EI, m / z): 517 (M + +1).
Embodiment 3
[0117] The difference with Example 1 is: the N-Boc-2-chloroethylamine in the step (2) of the synthetic method step is replaced by N-Boc-4-chlorobutylamine, and the obtained (Z)-N-( 2-((4-(N-(3-bromo-4-fluorophenyl)-N'-hydroxymethylimidyl)-1,2,5-oxadiazol-3-yl)amino)butyl)imidazole The structural formula of [1,2-a]pyridine-6-carboxamide is as follows:
[0118]
[0119] Its H NMR spectrum is: 1 H NMR(400MHz,DMSO):δ11.06(s,1H),9.83(s,1H),8.79(s,1H),8.44(s,1H),7.91(d,J=3.5Hz,1H), 7.71(m,1H),7.37(s,2H),6.86(m,1H),6.78(m,1H),6.56(m,1H),6.06(s,1H),3.25(m,2H),3.05 (m,2H),1.50-1.48(m,4H)ppm.
[0120] Its carbon spectrum is: 13 C NMR (125MHz, DMSO): δ167.8, 163.5, 155.2, 153.3, 148.7, 147.2, 145.2, 143.2, 134.4, 133.2, 129.3, 119.2, 118.6, 117.2, 116.7, 114.2, 110.2, 42.1, 39.2, 2
[0121] Its mass spectrum is: MS (EI, m / z): 531 (M + +1).
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