4-(1-substituted-phenylvinyl)biphenyl derivatives, and preparation method and application thereof
A technology of phenylvinyl and substituents, applied in the field of medicine, can solve problems such as easy drug resistance and single tumor inhibitory spectrum
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Embodiment 1
[0066] Example 1 Preparation of 4'-(1-(4-methoxyphenyl)vinyl)-2-nitrobiphenyl (Compound 1 in Table 1)
[0067]
[0068] (1) Preparation of intermediate: 2-nitro-4'-acetyl-1,1'-biphenyl (II)
[0069] P-acetophenone boronic acid (0.23g, 1.4mmol), 2-nitrobromobenzene (I) (0.20g, 1mmol), cesium carbonate (0.489g, 1.5mmol) are dissolved in water (0.75ml) and dioxane ( 2.2ml), then add bis(triphenylphosphorus)palladium chloride (0.02g, 0.03mmol), protected by nitrogen, reflux and stir at 100°C for 1hr, the reaction solution is brown and clear. The reaction solution was slowly added to crushed ice (400g), and then stirred for 1h. Add 15ml of water, extract with ethyl acetate (10ml×3), combine the organic phases, dry with anhydrous sodium sulfate, filter, concentrate by distillation under reduced pressure, and separate by column chromatography (PE: EtOAc = 20:1) to obtain a white solid. The yield was 86%. Obtain intermediate (II);
[0070] (2) Preparation of intermediate: 2-nitro-4'-acet...
Embodiment 2-7
[0075] Repeat Example 1 with the difference that different raw materials are used to prepare compound 2-7. details as follows:
[0076] Combine 3-methylbromobenzene, 2-methoxybromobenzene, 3-methoxybromobenzene, 4-nitrobromobenzene, 3-nitrobromobenzene, and 2-methylbromobenzene with p-acetophenylboronic acid. Prepare into the corresponding substituted p-acetyl biphenyl, and then make the corresponding substituted 4'-acetyl-1,1'-biphenyl p-toluene sulfonyl hydrazone with p-toluenesulfonyl hydrazide, and finally with p-methoxy bromide respectively Benzene reacts to form compounds 2, 3, 4, 5, 6, and 7 in Table 1.
Embodiment 8
[0077] Example 8: Preparation of 4'-(1-(3-acetoxy-4-methoxyphenyl)vinyl)-3,5-dimethoxybiphenyl (Compound 8 in Table 1)
[0078]
[0079] (1) Preparation of intermediate: 3,5-dimethoxy-4'-acetyl-1,1'-biphenyl (Ⅶ)
[0080] P-acetophenone boronic acid (0.23g, 1.4mmol), 3,5-dimethoxy bromobenzene (VI) (0.22g, 1mmol), cesium carbonate (0.489g, 1.5mmol) dissolved in water (0.75ml) and two Oxane (2.2ml), then add bis(triphenylphosphorus)palladium chloride (0.02g, 0.03mmol), under nitrogen protection, reflux and stir at 100°C for 1hr, the reaction solution was brown clear. The reaction solution was slowly added to crushed ice (400g), and then stirred for 1h. Add 15ml of water, extract with ethyl acetate (10ml×3), combine the organic phases, dry with anhydrous sodium sulfate, filter, concentrate by distillation under reduced pressure, and separate by column chromatography (PE: EtOAc = 20:1) to obtain a white solid. The yield was 86%. Obtain intermediate (Ⅶ);
[0081] (2) Preparation of i...
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