Active component having synergistic effect together with hyperuricemia treatment medicine, and febuxostat composition of active component
A technology of hyperuricemia and active ingredients, applied in the field of chemical medicine, can solve problems such as adverse reactions, achieve high safety, suppress adverse reactions, and reduce toxic and side effects
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Embodiment 1
[0038] Example 1: Extraction and characterization of compound 1-3 of the present invention
[0039] Take 5 kg of emblica medicinal material, pulverize it, and extract it with 5 L of water for 40 min while keeping it slightly boiling. The extract was concentrated to 1 L in vacuo, and the concentrated solution was separated by column chromatography using Diaion HP-20 macroporous adsorption resin, and eluted with water, 30% ethanol, 60% ethanol, and 95% ethanol respectively. Take 20 g of the eluent eluted with water and use reverse phase C18 silica gel for column chromatography separation, and use 5%-10% ethanol as the eluent for elution to obtain compound 1, compound 2 and compound 3 of the present invention respectively ;
[0040] The structural formula of the compound 1 is as follows:
[0041]
[0042] The structural formula of the compound 2 is as follows:
[0043]
[0044] The structural formula of the compound 3 is as follows:
[0045]
[0046] The detection and ...
Embodiment 2
[0053] Embodiment 2: Preparation and characterization of compound 4 of the present invention
[0054] In this example, Compound 4 of the present invention was prepared using the following synthetic route:
[0055]
[0056] The specific operation is as follows:
[0057] (1) Synthesis of 3,4,5-tribenzylbenzoic acid
[0058] Dissolve 17.0 g of gallic acid in 800 ml of dimethylformamide (abbreviated as DMF, the same below), and use nitrogen protection, add 113 g of anhydrous potassium carbonate in batches at 25 ° C, stir for 1 hour, heat up to 40 ° C, and then Add 143ml of benzyl bromide dropwise to the reaction system within 30min; after the dropwise addition, stir the reaction mixture at 40°C for 12h; use TLC to confirm that the reaction is complete, stop heating, and lower the reaction temperature to Room temperature 25°C; add 400ml of water and 1L of ethyl acetate to the reaction system, separate liquid extraction, wash the organic phase with 500ml of water three times, t...
Embodiment 3
[0069] Embodiment 3: Preparation and characterization of compound 5 of the present invention
[0070] In this example, compound 5 of the present invention was prepared using the same synthetic route and method as compound 4, the only difference being that the n-butanol in step 3) was replaced with 3-hydroxymethyl-benzoic acid to obtain this compound Invention compound 5, its structural formula is as follows:
[0071]
[0072] The detection and characterization data of the product are as follows:
[0073] Compound 5: C 15 h 12 o 7 , molecular weight 305[M+H] +
[0074] 1 H NMR (400MHz, CD 3 OD)δ8.14(s,1H),8.05(s,1H),7.81(d,1H),7.45(t,1H),6.95(s,2H),5.26(s,2H); 13 C NMR (100MHz, CD 3 OD) δ169.3, 165.9, 146.1.146.1, 141.1, 140.3, 132.3, 130.4, 129.2, 128.8, 128.6, 121.2, 109.6, 109.6, 65.7. It can be seen that its structure is correct.
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