Pharmaceutical composition of etodolac and medical application thereof
A technology of etodolac and its composition, which is applied in the direction of drug combination, medical preparations containing active ingredients, and pharmaceutical formulations, can solve the problems that have not yet been reported on acute pharyngitis, achieve outstanding substantive features, and improve therapeutic effects Effect
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Embodiment 1
[0020] Example 1: Compound (Ⅰ) isolation preparation and structure confirmation
[0021] Reagent sources: ethanol, petroleum ether, ethyl acetate, n-butanol, and dichloromethane are of analytical grade, purchased from Shanghai Lingfeng Chemical Reagent Co., Ltd., methanol, of analytical grade, purchased from Jiangsu Hanbang Chemical Reagent Co., Ltd.
[0022] Separation method: (a) Crush Dendrobium (2kg), heat reflux extraction with 75% ethanol (20L×3 times), combine the extracts, concentrate until there is no alcohol smell (4L), and use petroleum ether (4L×3 times) in turn Extract with 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 medium n-butanol extract was decontaminated with D101 macroporous resin, first eluted with 15% ethanol for 6 column volumes, then eluted with 70% ethanol for 10 column volumes, collected 70% eluate, and concentrated under ...
Embodiment 2
[0026] Example 2: Pharmacological effects
[0027] In this example, an acute pharyngitis animal model was established by spraying ammonia water on the pharynx of rats for 3 consecutive days, and the number of neutrophils, serum interleukin-1β (IL-1β) and interleukin-6 (IL- 6) and the expression of tumor necrosis factor-α (TNF-α), and observe the therapeutic effect of drugs on acute pharyngitis.
[0028] 1. Materials and methods
[0029] 1.1 Animals
[0030] Wistar rats, weighing (250±20) g, half male and half male, were provided by Shanghai Slack Laboratory Animal Co., Ltd.
[0031] 1.2 Reagents and samples
[0032] Etodolac was purchased from the National Institute for the Control of Pharmaceutical and Biological Products. Compound (I) is self-made, and the preparation method is shown in Example 1. Dexamethasone acetate tablets (Shanghai Xinyi Pharmaceutical Co., Ltd.). Interleukin-1β (IL-1β), Interleukin-6 (IL-6) and Tumor Necrosis Factor-α (TNF-α) enzyme-linked immunoassay kits (a...
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