Pharmaceutical composition of desmopressin acetate, and application of same to biological medicine
A desmopressin and composition technology, applied in the field of biomedicine, can solve the problems such as the related reports of desmopressin acetate and its pharmaceutical composition, etc., and achieve the improvement of pulmonary immune function and pulmonary immune function. , improve the effect of improving the effect
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Embodiment 1
[0018] Example 1: Compound (I) Separation Preparation and Structure Confirmation
[0019] Separation method: (a) Pulverize Huangteng (3kg), extract with 75% ethanol under heat reflux (20L×3 times), combine the extracts, concentrate until no alcohol smell (4L), and successively use petroleum ether (4L×3 times) ), ethyl acetate (4L × 3 times) and water-saturated n-butanol (4L × 3 times) extraction, respectively obtain petroleum ether extract, ethyl acetate extract and n-butanol extract; (b) step (a ) in n-butanol extract with AB-8 type macroporous resin for impurity removal, first elute 8 column volumes with 6% ethanol, then elute 8 column volumes with 70% ethanol, collect 70% eluate, decompress Concentrate to get 70% ethanol elution concentrate; (c) in step (b), 70% ethanol elution concentrate is separated with normal phase silica gel, and the volume ratio is 50:1 (8 column volumes), 25:1 ( 8 column volumes), 15:1 (8 column volumes) and 5:1 (10 column volumes) dichloromethane-...
Embodiment 2
[0022] Embodiment 2: pharmacological action
[0023] In this example, compound (I), desmopressin acetate, and the combination of desmopressin acetate and compound (I) were studied to improve lung immune function.
[0024] 1. Materials and methods
[0025] 1.1 Reagents
[0026] Desmopressin acetate 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. Pentobarbital sodium; RPMI1640 (With L-glutamine; Without sodium bicarbonate), GIBCOBRL company; Mycoplasma-free newborn calf serum (New Born Calf Serum), Hyclone company; Hepes, Sigma company; LDH kit, ACP kit, Nanjing Jiancheng Institute of Bioengineering; Hydrobromoornithine; Indian Ink.
[0027] 1.2 Experimental Instruments
[0028] 752 ultraviolet spectrophotometer, Shanghai Third Analytical Instrument Factory; water-proof electric heating constant temperature incubator, Chongqing Sida Experimental Instrumen...
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