Hypoglycemic Active Compounds and Their Medical Uses
A compound and pharmaceutical technology, applied in the field of hypoglycemic active compounds and their medicinal uses, can solve problems such as weight gain, hypoglycemia, and no effect on the development of diabetes
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Embodiment 13
[0099] Example 13,4'-Dimethoxy-5-(3-carboxypropoxy)-(E)-stilbene (Ib-1)
[0100]
[0101] Dissolve 10.16 g (44.51 mmol) of resveratrol in 100 ml of anhydrous acetone (acetone), add 18.75 g (135.66 mmol) of potassium carbonate, and stir well. Dissolve 6ml (97.31mmol) of methyl iodide in 50ml of anhydrous acetone, mix well, and slowly add dropwise to the reaction system at room temperature. After the dropwise addition was completed, stir at room temperature. The reaction was monitored by TLC. After the reaction, potassium carbonate was removed by suction filtration, the filter cake was rinsed with anhydrous acetone, the filtrate was collected, and the solvent was evaporated under reduced pressure to obtain a brown oil, which was subjected to column layer with 200-300 mesh silica gel. Analysis and separation, eluting with petroleum ether: ethyl acetate (volume ratio 4: 1) to obtain 3,4'-dimethoxy-5-hydroxy-(E)-stilbene (i-1) as a yellow solid 5.48 g, yield: 48.0%.
[0102]A...
Embodiment 23
[0103] Example 23,4'-Dimethoxy-5-(4-carboxybutoxy)-(E)-stilbene (Ib-2)
[0104]
[0105] Referring to Example 1, ethyl 5-bromopentanoate was used instead of ethyl 4-bromobutyrate to react with compound i-1, the reaction product was hydrolyzed with lithium hydroxide, and the hydrolyzed product was separated by silica gel column chromatography to obtain Ib- 1.26 g of white solid of 2, yield: 90.7%. 1 H-NMR (d 6 -DMSO): δppm 1.72(m,4H), 2.32(t,2H), 3.79(d,6H), 4.01(t,2H), 6.39(t,1H), 6.75(d,2H), 6.97(d ,2H), 7.03(d,1H), 7.23(d,1H), 7.55(d,2H), 12.08(s,1H).
Embodiment 33
[0106] Example 33,4'-Dimethoxy-5-(5-carboxypentyloxy)-(E)-stilbene (Ib-3)
[0107]
[0108] Referring to Example 1, ethyl 6-bromohexanoate was used instead of ethyl 4-bromobutyrate to react with compound i-1, the reaction product was hydrolyzed with lithium hydroxide, and the hydrolyzed product was separated by silica gel column chromatography to obtain Ib- 1.24 g of white solid of 3, yield: 85.8%. 1 H-NMR (d 6 -DMSO): δppm1.44(m,2H), 1.58(m,2H), 1.72(m,2H), 2.25(t,2H), 3.78(d,6H), 3.98(t,2H), 6.38( d,1H), 6.73(d,2H), 6.95(d,2H), 7.01(d,1H), 7.22(d,1H), 7.54(d,2H), 12.03(s,1H).
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