Pyridine compounds containing triazole keto-amide and orazamide structures and application of pyridine compounds
A technology of triazolone amide and imidazole amide, which is applied in the field of pyridine compounds and their pharmaceutically acceptable salts, can solve the problem of unsatisfactory clinical treatment effect and pharmacokinetic parameters, large toxic and side effects, and poor oral bioavailability. higher question
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Embodiment 1
[0048] Example 1: N-(4-{[2-(cyclopropanecarboxamido)pyridin-4-yl]oxy}-3-fluorophenyl)-1-(2-fluorophenyl)-4-methyl Preparation of yl-5-oxo-4,5-dihydro-1H-1,2,4-triazole-3-carboxamide (compound 1)
[0049]
[0050] Step 1 N-(4-chloropyridin-2-yl)cyclopropylformamide (a)
[0051] 8.80g of 2-amino4-chloropyridine and 20.80g of triethylamine were dissolved in 80mL of dichloromethane, and 30mL of dichloromethane solution containing 9.30g of cyclopropylformyl chloride was added dropwise to the solution under ice-bath conditions. Warm up to room temperature after the addition is complete. Stirred for 12h, after the completion of the reaction, the mixture was washed with 20% K 2 CO 3 solution and saturated brine were washed 3 times respectively, the organic phase was separated, dried over anhydrous sodium sulfate, filtered, and the solvent was evaporated to dryness to obtain a crude product, which was separated by column chromatography to obtain a white solid N-(4-chloropyridin-2...
Embodiment 2
[0067] Example 2: N-(4-{[2-(cyclopropanecarboxamido)pyridin-4-yl]oxy}-3-fluorophenyl)-1-(2-bromophenyl)-4-methyl Dihydro-5-oxo-4,5-dihydro-1H-1,2,4-triazole-3-carboxamide (Compound 2)
[0068]
[0069] 1 H NMR (600MHz, DMSO-d 6 )δ11.05(s,1H),10.89(s,1H),8.22(d,J=5.5Hz,1H),7.95(d,J=12.8Hz,1H),7.88(d,J=7.9Hz, 1H), 7.73(d, J=8.6Hz, 1H), 7.70–7.56(m, 3H), 7.52(t, J=7.6Hz, 1H), 7.40(t, J=8.9Hz, 1H), 6.74( d,J=4.8Hz, 1H), 3.56(s,3H), 2.13–1.86(m,1H), 0.77(d,J=5.7Hz, 4H).
Embodiment 3
[0070] Example 3: 2: N-(4-{[2-(cyclopropanecarboxamido)pyridin-4-yl]oxy}-3-fluorophenyl)-1-(2-methoxyphenyl) -4-Methyl-5-oxo-4,5-dihydro-1H-1,2,4-triazole-3-carboxamide (compound 3)
[0071]
[0072] 1 H NMR (600MHz, DMSO-d 6 )δ10.97(s,1H),10.89(s,1H),8.22(d,J=5.5Hz,1H),7.94(d,J=12.5Hz,1H),7.72(d,J=8.5Hz, 1H), 7.64(s, 1H), 7.53(t, J=7.6Hz, 1H), 7.48–7.33(m, 2H), 7.25(d, J=8.2Hz, 1H), 7.10(t, J=7.4 Hz,1H),6.74(d,J=3.5Hz,1H),3.81(s,3H),3.53(s,3H),2.02–1.92(m,1H),0.77(d,J=5.7Hz,4H ); MS (ESI) m / z (%): 519.2 [M+H] + .
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