Compound for preventing and treating kiwi fruit soft rot and derivatives thereof
A compound and solvate technology, which is applied in the field of compounds and derivatives for preventing and treating kiwifruit soft rot, can solve the problems of no effective medicament for preventing and treating kiwifruit soft rot, etc.
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Embodiment 1
[0042] The compounds of the present invention are generally prepared by the following methods:
[0043] (1) In a three-necked flask equipped with a thermometer, condenser tube and electric magnetic stirrer, put 0.50mol quercetin, 0.020mol p-toluenesulfonic acid and 300mL anhydrous methanol, fully stir, react overnight at reflux temperature, remove Solvent, the concentrated solution was dissolved in toluene, washed, dried over anhydrous magnesium sulfate, and precipitated to obtain a yellow oily liquid with a crude product yield of 86%, which was directly used in the next step without purification.
[0044] (2) Add 30 mmol of the product of step (1), 50 mmol of phosphorus pentasulfide, and 100 milliliters of pyridine in a three-necked flask, reflux reaction, follow the reaction by TLC until the end of the reaction, cool, add 50 milliliters of purified water, stir, and generate a precipitate. A yellow solid was obtained by suction filtration. The yellow solid was dissolved in 20...
Embodiment 2
[0049] Example 2 compound:
[0050]
[0051] 1 H NMR (300MHz, DMSO): δ7.33(q, 1H), 6.93(d, 1H), 6.84(s, 1H), 6.14(s, 1H), 6.10(s, 1H), 5.24(d, 2H ), 4.50(s, 1H), 3.85(s, 3H), 3.83(s, 3H), 3.81(s, 3H), 3.72(s, 3H), 3.51(s, 3H).
Embodiment 3
[0052] Example 3 compound:
[0053]
[0054] 1 H NMR (300MHz, DMSO): δ7.33(q, 1H), 6.93(d, 1H), 6.84(s, 1H), 6.14(s, 1H), 6.10(s, 1H), 4.53(s, 2H ), 4.50(s, 1H), 3.85(s, 3H), 3.83(s, 3H), 3.81(s, 3H), 3.72(s, 3H), 3.51(s, 3H).
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