Phenylpropionate compound and preparation method and application thereof
A technology of phenylpropionate and phenylacrylate, which is applied in the field of phenylpropionate compounds and their preparation, and can solve problems such as not being able to exhibit ideal drug effects
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Embodiment 1
[0087] The synthesis of embodiment 1 formula A compound
[0088] (1) Under nitrogen protection, mono(1R,2S,4R)-1,7,7-trimethylbicyclo[2.2.1]heptane-2-ol ester (11.5g, 47.9mmol) , 3-fluoro-4-hydroxyl-5-methoxybenzaldehyde (7.3g, 42.9mmol) was added in toluene (100ml), added pyridine (7.6g, 95.8mmol), piperidine (0.4g, 4.7mmol) , heated up to 120°C for 5 hours, after the reaction, let the reaction liquid cool, and washed with 1N hydrochloric acid solution, saturated NaHCO 3 solution, washed with saturated NaCl solution, dried over anhydrous sodium sulfate for 4h, concentrated to dryness, and recrystallized from ethyl acetate / petroleum ether to obtain (1R,2S,4R)-1,7,7-trimethylbicyclo[2.2. 1] Heptane-2-yl (E)-3-(3-fluoro-4-hydroxy-5-methoxyphenyl)acrylate white powder solid 10.2g, yield 68.5%. EI-MS M / Z349.2[M + ], 347.3[M - ].
[0089] 1 H-NMR (CDCl 3 ,500MHz) 0.78 (3H, s, H-12), 0.86, 0.87 (each 3H, s, H-13, 14), 0.89 (1H, d, H-8α), 1.14 (1H, m, H-10β ),1.17~1.21(1H,t,H...
Embodiment 2
[0091] The synthesis of embodiment 2 formula A compound
[0092] (1) Under nitrogen protection, mono(1R,2S,4R)-1,7,7-trimethylbicyclo[2.2.1]heptane-2-ol ester (5.3g, 22.1mmol) , 3-fluoro-4-hydroxyl-5-methoxybenzaldehyde (3.0g, 17.6mmol) was added in toluene (50ml), piperidine (0.38g, 4.4mmol), acetic acid (0.26g, 4.4mmol) were added , heated up to 120°C for 5 hours, after the reaction, let the reaction liquid cool, and washed with 1N hydrochloric acid solution, saturated NaHCO 3 solution, washed with saturated NaCl solution, dried over anhydrous sodium sulfate for 4h, concentrated to dryness, and recrystallized from ethyl acetate / petroleum ether to obtain (1R,2S,4R)-1,7,7-trimethylbicyclo[2.2. 1] Heptan-2-yl (E)-3-(3-fluoro-4-hydroxy-5-methoxyphenyl)acrylate white powder solid 4.3g, yield 70.5%.
[0093] (2) At room temperature, (1R,2S,4R)-1,7,7-trimethylbicyclo[2.2.1]heptane-2-yl(E)-3-(3-fluoro-4- Hydroxy-5-methoxyphenyl) acrylate (1.0g, 2.9mmol) was added in methanol (20m...
Embodiment 3
[0094] The synthesis of embodiment 3 formula B compound
[0095] (1) Under nitrogen protection, mono(1R,2S,4R)-1,7,7-trimethylbicyclo[2.2.1]heptane-2-ol ester (11.5g, 47.9mmol) , 3,4-dihydroxy-5-methoxybenzaldehyde (7.2g, 42.9mmol) was added to toluene (100ml), pyridine (7.6g, 95.8mmol) and piperidine (0.4g, 4.7mmol) were added, Raise the temperature to 120°C and react for 5 hours. After the reaction, let the reaction solution cool down, and wash with 1N hydrochloric acid solution, saturated NaHCO 3 solution, washed with saturated NaCl solution, dried over anhydrous sodium sulfate for 4h, concentrated to dryness, and recrystallized from ethyl acetate / petroleum ether to obtain (1R,2S,4R)-1,7,7-trimethylbicyclo[2.2. 1] Heptan-2-yl (E)-3-(3,4-hydroxy-5-methoxyphenyl)acrylate white powder solid 8.3g, yield 55.8%. EI-MS M / Z 347.2[M + ], 345.2[M - ].
[0096] (2) At room temperature, (1R,2S,4R)-1,7,7-trimethylbicyclo[2.2.1]heptane-2-yl (E)-3-(3,4-hydroxyl- 5-Methoxyphenyl) acr...
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