Beclomethasone dipropionate pharmaceutical composition and application thereof in biological medicines
A technology of beclomethasone dipropionate and its composition, which is applied in the field of biomedicine, can solve the problems that have not yet been reported related to beclomethasone dipropionate, and achieve the effect of improving the hypoglycemic effect
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Embodiment 1
[0020] Example 1: Compound (I) Separation Preparation and Structure Confirmation
[0021] Separation method: (a) Grind the dried tubers (2kg) of Alisma alisma, extract with 70% ethanol under hot reflux (15L×3 times), combine the extracts, concentrate until no alcohol smell (3L), and then use petroleum ether (3L ×3 times), ethyl acetate (3L×3 times) and water-saturated n-butanol (3L×3 times) were extracted to obtain petroleum ether extract, ethyl acetate extract and n-butanol extract respectively; (b) In the step (a), the ethyl acetate extract was removed with a D101 macroporous resin, and 9 column volumes were eluted with 20% ethanol, and then 10 column volumes were eluted with 65% ethanol, and the 65% eluent was collected. Concentrate under reduced pressure to obtain 65% ethanol elution concentrate; (c) 65% ethanol elution concentrate in step (b) is separated with normal phase silica gel, and the volume ratio is 65:1 (9 column volumes), 35: The dichloromethane-methanol gradi...
Embodiment 2
[0025] Embodiment 2: pharmacological action
[0026] 1. Materials and methods
[0027] 1.1 Materials and Instruments
[0028]Healthy male ICR mice, animal experiment center of Shenyang Medical College, weighing 18-22 g; beclomethasone dipropionate was purchased from China Institute for the Control of Pharmaceutical and Biological Products. Compound (I) is self-made, and the preparation method is shown in Example 1. Streptozotocin (STZ) Sigma Chemical Company of the United States, made 1% STZ solution with citric acid buffer before use; other reagents were of domestic analytical grade. SW-CJ-2FD ultra-clean workbench Suzhou Purification Equipment Co., Ltd.; QYC-2112 large-scale double-layer full-temperature culture shaker Shanghai Tiancheng Experimental Instrument Manufacturing Co., Ltd.; SHY-2A dual-function water bath constant temperature oscillator Jiangsu Dongpeng Instrument Manufacturing Co., Ltd. ; TGL20W desktop high-speed refrigerated centrifuge Hunan Xiangyi Laborat...
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