Diaryl hydantoin derivative, as well as preparation method, medicine composition and application thereof
A technology of hydantoin and diaryl group, applied in the field of medicinal chemistry, can solve problems such as weak antagonistic activity
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Embodiment 1
[0111] 4-[4,4-Dimethyl-3-(1-methyl-1H-indazol-5-yl)-5-oxo-2-thio-imidazolin-1-yl]-2-tri Preparation of fluoromethyl-benzonitrile (compound I-1)
[0112]
[0113] The first step: the preparation of 2-methyl-2-(1-methyl-1H-indazol-5-ylamino)-propionitrile
[0114] Dissolve 5-amino-1 methylindazole (280mg, 1.9mmol) in acetone (10mL), add trimethylsilyl cyanide (725uL, 5.7mmol) and a few drops of acetic acid, place in a sealed tube, and heat to 90 °C and kept stirring at constant temperature overnight. The reaction solution was cooled to room temperature, concentrated under reduced pressure, diluted with water, extracted with ethyl acetate (50mL×3), the ethyl acetate layer was washed with water and saturated brine successively, dried over anhydrous sodium sulfate, filtered, concentrated to obtain the crude product, and flash column chromatography Analysis and separation (petroleum ether: ethyl acetate = 1:1) gave 2-methyl-2-(1-methyl-1H-indazol-5-ylamino)-propionitrile. MS m...
Embodiment 2~ Embodiment 5
[0118] According to the same method as in Example 1, the compounds of Examples 2 to 5 were prepared, and the specific chemical structure identification data are shown in Table 1.
[0119] Table 1 Chemical structure identification data table of compound I-2~compound I-5
[0120]
Embodiment 6
[0122] 4-[3-(1-Ethyl-1H-indazol-5-yl)-4,4-dimethyl-5-oxo-2-thio-imidazolin-1-yl]-2-tri Preparation of fluoromethyl-benzonitrile (compound I-6)
[0123]
[0124] The first step: the preparation of 1-ethyl-1H-indazol-5-ylamine
[0125] Dissolve 1-ethyl-5-nitro-1H-indazole (5g, 26.2mmol) in ethanol (50mL), add water (50mL), heat to 90°C, add solid ammonium chloride (6g, 112mmol) and reduced iron powder (6g, 107mmol), the resulting solution was stirred for 1 hour. After hot filtration, the filtrate was concentrated and flash column chromatographed (petroleum ether: ethyl acetate = 3:1) to obtain 1-ethyl-1H-indazol-5-ylamine (3 g, pink solid). 1 H NMR (400MHz, CDCl 3 ):δ7.80(s,1H),7.27(m,1H),6.96(s,1H),6.90(m,1H),4.39(q,2H,J=7.2Hz),1.51(t,3H, J = 7.2 Hz). MS m / z (ESI): 162.1 [M+H].
[0126] The second step: the preparation of 2-(1-ethyl-1H-indazol-5-ylamino)-2-methyl-propionitrile
[0127] Dissolve 5-amino-1-ethylindazole (1.5g, 9.3mmol) in acetone (15mL), add trimethylsi...
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