Phenylacrylate compound as well as preparation method and application thereof
A technology of phenylacrylate and compound, applied in the field of phenylacrylate compound and preparation thereof, can solve the problems such as not being able to show ideal medicinal effect and the like
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Embodiment 1
[0087] Synthesis of Compound A: Under nitrogen protection, malonic acid mono(1R,2S,4R)-1,7,7-trimethylbicyclo[2.2.1]heptane-2-ol ester (11.5g, 47.9 mmol), 3-fluoro-4-hydroxyl-5-methoxybenzaldehyde (7.3g, 42.9mmol) were added in toluene (100ml), added pyridine (7.6g, 95.8mmol), piperidine (0.4g, 4.7 mmol), the temperature was raised to 120°C for 5 hours. After the reaction was completed, the reaction solution was allowed to cool, and 1N hydrochloric acid solution, saturated NaHCO 3 solution, washed with saturated NaCl solution, dried over anhydrous sodium sulfate for 4 h, concentrated to dryness, and recrystallized from ethyl acetate / petroleum ether to obtain 10.2 g of white powder solid with a yield of 68.5%. EI-MS M / Z349.2[M + ], 347.3[M - ].
[0088] 1 H-NMR (CDCl 3 ,500MHz) 0.88, 0.90, 0.94 (each 3H, s, H-8, 9, 10), 1.05 (1H, dd, J=17.2, 4.3Hz, H-3b), 1.25 (2H, m, H-5b , H-6b), 1.70(1H,m,H-4),1.78(1H,m,H-5a),2.01(1H,m,H-6a),2.41(1H,m,H-3a), 3.96 (3H, s, -OMe), 5.01 (...
Embodiment 2
[0090] Synthesis of Compound A: Under nitrogen protection, malonic acid mono(1R,2S,4R)-1,7,7-trimethylbicyclo[2.2.1]heptane-2-ol ester (5.3g, 22.1 mmol), 3-fluoro-4-hydroxyl-5-methoxybenzaldehyde (3.0g, 17.6mmol) were added in toluene (50ml), piperidine (0.38g, 4.4mmol), acetic acid (0.26g, 4.4 mmol), the temperature was raised to 120°C for 5 hours. After the reaction was completed, the reaction solution was allowed to cool, and 1N hydrochloric acid solution, saturated NaHCO 3 solution, washed with saturated NaCl solution, dried over anhydrous sodium sulfate for 4 h, concentrated to dryness, and recrystallized from ethyl acetate / petroleum ether to obtain 4.3 g of white powder solid, with a yield of 70.5%.
Embodiment 3
[0092] Synthesis of Compound B: Under nitrogen protection, malonic acid mono(1R,2S,4R)-1,7,7-trimethylbicyclo[2.2.1]heptane-2-ol ester (11.5g, 47.9 mmol), 3,4-dihydroxy-5-methoxybenzaldehyde (7.2g, 42.9mmol) were added to toluene (100ml), and pyridine (7.6g, 95.8mmol), piperidine (0.4g, 4.7mmol) were added ), heated up to 120°C for 5 hours, after the reaction was over, let the reaction liquid cool down, and washed with 1N hydrochloric acid solution, saturated NaHCO 3 solution and saturated NaCl solution, dried over anhydrous sodium sulfate for 4 h, concentrated to dryness, and recrystallized from ethyl acetate / petroleum ether to obtain 8.3 g of white powder solid, with a yield of 55.8%. EI-MS M / Z347.2[M + ], 345.2[M - ].
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