Pharmaceutical composition of aceclofenac and pharmaceutical application thereof
A technology of aceclofenac and its composition, which is applied in the field of aceclofenac pharmaceutical composition, can solve problems such as chronic nephritis-related reports that have not yet been seen, and achieve the effect of improving the therapeutic effect
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Embodiment 1
[0022] Example 1: Compound (I) Separation Preparation and Structure Confirmation
[0023] Sources of reagents: ethanol, petroleum ether, ethyl acetate, n-butanol, and dichloromethane were of analytical grade, purchased from Shanghai Lingfeng Chemical Reagent Co., Ltd. Methanol, of analytical grade, were purchased from Jiangsu Hanbang Chemical Reagent Co., Ltd.
[0024] Separation method: (a) Grind the dried root of rhubarb (2kg), extract with 75% ethanol under heat reflux (20L×3 times), combine the extracts, concentrate until no alcohol smell (4L), and successively wash with petroleum ether (4L× 3 times), ethyl acetate (4L×3 times) and water-saturated n-butanol (4L×3 times) to obtain petroleum ether extract, ethyl acetate extract and n-butanol extract respectively; (b) step (a) The ethyl acetate extract in (a) was removed with D101 macroporous resin, first eluted with 8% ethanol for 6 column volumes, then with 70% ethanol for 8 column volumes, collected 70% eluate, and reduced...
Embodiment 2
[0027] Embodiment 2: to the therapeutic effect of rat chronic nephritis model
[0028] The experiment adopts the improved cationized bovine serum albumin (induced chronic glomerulonephritis model, which is one of the preferred animal models for researching therapeutic drugs at present. The positive control drug is tripterygium glycosides tablets Detect changes in biochemical indicators such as urine protein, serum creatinine, and urea nitrogen in experimental rats, make stained pathological sections of kidney tissue, and observe the pathological changes under a light microscope.
[0029] 1. Experimental materials
[0030] (1) Experimental animals
[0031] 90 SD rats (healthy and clean grade), half male and half male, weight standard: 200±15g. Purchased from the Experimental Animal Center of Heilongjiang University of Traditional Chinese Medicine, experimental animal qualification certificate number: SCXK black 2014-004. The laboratory is equipped with exhaust and ventilatio...
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