Derivative of high veratryl alcohol and medical application of derivative of high veratryl alcohol
A technology of homoveratrol and its derivatives, which is applied in the field of medicine and can solve problems such as easy oxidation of compounds, short time, unsuitable drug index, etc.
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[0031] Synthesis of Ethyl Hoveratrol Trioxoisobutyrate
[0032] Take 1.12g (6.24mmol) of ethyl 2-bromoisobutyrate and put it into a three-necked flask with a stirring device, and add 20ml of DMF successively under stirring at room temperature, 0.5K 2 CO 3 , 0.05g tetrabutylammonium bromide. After stirring evenly, add 0.39g homoveratrol (1.71mmol) and 10ml DMF mixture dropwise. After the dropwise addition, raise the temperature to 55°C to continue the reaction for 5h, filter, and the filtrate is rotary evaporated under reduced pressure, and the organic solvent is recovered to obtain a yellow solid. Separation by column chromatography yielded 0.56 g of homoveratrol methyl trioxoisobutyrate with a yield of 62.3%.
[0033] 1 H-NMR (DMSO, 300MHz) 1.26 (9H, m), 1.58-1.62 (18H, m), 4.27 (6H, m), 6.26 (1H, t), 6.64 (2H, d), 6.83 (3H, m ), 6.88 (1H, m), 7.36 (2H, m), MS: 570 (M + ).
[0034] Reaction formula:
[0035]
[0036] The compound of Example 1 has been shown to be e...
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