Drug composition of bisoprolol fumarate and pharmaceutical application thereof
A technology of bisoprolol fumarate and its composition, which is applied in the directions of drug combinations, medical preparations containing active ingredients, pharmaceutical formulas, etc., and can solve the related reports on bisoprolol fumarate and its pharmaceutical composition that have not yet been seen and other issues, to achieve the effect of highlighting substantive characteristics, good effect, and significant progress
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Embodiment 1
[0021] Example 1: Compound (I) Separation Preparation and Structure Confirmation
[0022] 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.
[0023] Separation method: (a) Grind the dried loquat leaves (2kg), extract them under reflux with 75% ethanol (20L×3 times), combine the extracts, concentrate until there is no alcohol smell (4L), and then use petroleum ether (4L×3 times) 3 times), ethyl acetate (4L × 3 times) and water-saturated n-butanol (4L × 3 times) were extracted to obtain petroleum ether extract, ethyl acetate extract and n-butanol extract respectively; (b) step (a) Use D101 type macroporous resin to remove impurities from the n-butanol extract in (a), first elute with 15% ethanol for 6 column volumes, then use 70% ethanol for 10 column volumes,...
Embodiment 2
[0026] Embodiment 2: pharmacological action
[0027] 1. Materials and methods
[0028] 1.1 Drugs and reagents
[0029] Bisoprolol fumarate 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. Glacial acetic acid is produced by Guangxi Nanning Chemical Reagent Factory; xylene is produced by China National Pharmaceutical Group Shanghai Chemical Reagent Company; Aspirin tablets (100mg / tablet) were produced by Bayer Pharmaceutical Company; Guilong Kechuanning Capsules were produced by Shanxi Guilong Pharmaceutical Co., Ltd.; Juhong Granules were produced by Nanchang Kangzhengde Pharmaceutical Co., Ltd.
[0030] 1.2 Experimental animals
[0031] 90 Kunming mice, weighing (20±2) g, male and female, 60 Wistar rats, weighing (200±20) g, male and female, were provided by Hubei Experimental Animal Center.
[0032] 1.3 Equipment
[0033] 1. 80-2 type centrifuge, pro...
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