Tanshinone I derivative, preparation method and applications thereof
A technology of tanshinone and derivatives, applied in the field of pharmacy, can solve the problems of low bioavailability, poor water solubility of tanshinone I, low biological activity of tanshinone I and the like
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Embodiment 1
[0050] Embodiment 1, the synthesis of compound purple salvia miltiorrhiza
[0051]
[0052] Tanshinone I (1.38g, 5.0mmol) and selenium dioxide (1.10g, 10.0mmol) were added to 20mL dioxane / 6mL water, N 2 Protect and seal the tube at 110°C to avoid light for 72h. Stop the reaction, evaporate the solvent under reduced pressure, add 100 mL of water, extract three times with 100 mL of dichloromethane, combine the organic layers, wash with water and saturated brine in sequence, and dry over anhydrous sodium sulfate. After suction filtration, the filtrate was concentrated under reduced pressure, and the crude product was separated by column chromatography to obtain 0.38 g of a brown-red solid with a yield of 26%.
[0053] 1 HNMR (300MHz, CDCl 3 )δ9.26(d, J=8.9Hz, 1H), 8.35(d, J=9.1Hz, 1H), 7.85(d, J=8.7Hz, 1H), 7.67–7.51(m, 1H), 7.48( s,1H),7.39(d,J=7.0Hz,1H),4.71(d,J=7.7Hz,2H),3.50(t,J=7.0Hz,1H),2.71(s,3H). 13 CNMR (150MHz, CDCl 3 )δ 182.88, 176.02, 162.87, 141.39, 135.51, ...
Embodiment 2
[0054] Embodiment 2, the synthesis of compound S0
[0055]
[0056] Purple Danshen B (292mg, 1.0mmol) was added to 10mL of anhydrous dichloromethane, and PBr was added dropwise in an ice-water bath 3 (325mg, 1.2mmol) in dichloromethane solution, moved to room temperature to continue the reaction after dropping. After the reaction was detected by TLC, saturated sodium carbonate solution was added for extraction, and the organic layer was washed with water and saturated brine in sequence, and dried over anhydrous sodium sulfate. After suction filtration, the filtrate was concentrated under reduced pressure, and the crude product was separated by column chromatography to obtain 256 mg of a brown-red solid with a yield of 72%.
[0057] 1 HNMR (300MHz, CDCl 3 )δ9.28(d, J=8.7Hz, 1H), 8.36(d, J=8.6Hz, 1H), 7.85(d, J=8.6Hz, 1H), 7.65–7.52(m, 2H), 7.39( d,J=6.9Hz,1H),4.59(s,2H),2.71(s,3H). 13 CNMR (100MHz, CDCl 3 )δ 182.67, 174.79, 162.00, 144.29, 135.45, 134.09, 133.25, 132.9...
Embodiment 3
[0058] Embodiment 3, the synthesis of compound S1
[0059]
[0060] SO (18.2mg, 0.05mmol), morpholine (13.1mg, 0.15mmol) and potassium carbonate (23.0mg, 0.15mmol) were added into 0.4mL dichloromethane / 1.2mL acetonitrile and stirred at room temperature. After the reaction was detected by TLC, water was added for extraction, and the organic layer was washed with water and saturated brine in sequence, and dried over anhydrous sodium sulfate. After suction filtration, the filtrate was concentrated under reduced pressure, and the crude product was separated by column chromatography to obtain 19 mg of brown-red solid with a yield of 88%.
[0061] 1 HNMR (300MHz, CDCl 3 )δ9.21(d, J=8.7Hz, 0H), 8.27(d, J=8.6Hz, 1H), 7.78(d, J=8.6Hz, 1H), 7.56–7.49(m, 1H), 7.47( s,1H),7.33(d,J=6.6Hz,1H),3.80–3.65(m,4H),2.67(s,3H),2.53-2.63(m,4H). 13 CNMR (125MHz, CDCl 3 )δ 183.25, 175.39, 161.65, 143.56, 135.38, 133.89, 133.16, 132.88, 130.90, 129.58, 128.61, 124.91, 123.28, 122.79, 120.04, 11...
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