3-Cyanoquinoline derivative, preparation method and medical use thereof
A derivative, quinoline technology, applied in the field of 3-cyanoquinoline derivatives, can solve problems such as signal transduction disorders
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Embodiment 1
[0052] 3-Isopropoxy-4-methoxynitrobenzene (1)
[0053] Add 60g (0.36mol) of 3-hydroxy-4-methoxynitrobenzene and 100g (0.72mol) of potassium carbonate into a 500ml three-neck flask, dissolve in 300ml of acetone, stir mechanically, and slowly add 90ml of 2-bromopropane dropwise (0.98mol), react at 40°C for 5 hours. Then the reaction solution was poured into 1000ml of water, a large amount of solids were precipitated, and vacuum-dried to obtain 68g of the product, with a yield of 90%. Molecular formula: C10H13NO4, molecular weight: 211.22
[0054] MS (EI) m / z 211.
Embodiment 2
[0056] 3-Isopropoxy-4-methoxyaniline (2)
[0057] Add 40g (0.72mol) of iron powder, 200ml of water, 50ml of acetic acid and 50ml of ethanol into a 500ml three-neck flask, stir and heat to 30°C for 20min, then slowly add 3-isopropoxy-4-methoxy Nitrobenzene 50g (0.24mol), react at 55°C for 3 hours, filter with suction, combine the filtrates, extract 3 times with chloroform, concentrate the extract, and dry in vacuo to obtain 40g of a brown oily liquid. Yield 90%. Molecular formula: C10H15NO2, molecular weight: 181.24.
[0058] MS (EI) m / z 181.
Embodiment 3
[0060] (Z)-2-Nitryl-3-(3-isopropoxy-4-methoxyphenyl-amino)-acrylic acid ethyl ester (3)
[0061] Add 40g (0.22mol) of 3-isopropoxy-4-methoxyaniline, 40g (0.24mol) of (Z)-3-ethoxy-2-nitrile-acrylic acid ethyl ester and 100ml of toluene into 250ml three-neck In the bottle, heated and stirred, refluxed for 6 hours, cooled to room temperature, a white solid was precipitated, filtered with suction, recovered toluene in the filtrate, and the filter cake was recrystallized with ethanol to obtain 48 g of the product with a yield of 75%. Molecular formula: C16H20N2O4, molecular weight: 304.35.
[0062] MS (EI) m / z 304.
[0063] 1 H-NMR (AV-300, δ, DMSO-d 6 ): 1.21-1.28(m, 9H); 3.73(s, 3H); 4.14-4.16(m, 2H); 4.52-4.54(m, 1H); 6.87-6.89(m, 2H); 7.05(s, 1H ); 8.42(s, 1H); 10.58(d, 1H)
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