Treatment medicament for resisting infectious diseases, and preparation method and application thereof
A technology for infectious diseases and therapeutic drugs, applied in the field of medicine, can solve the problems such as the preparation method and use of crystalline hydrate that have not been reported
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Embodiment 1
[0061] Example 1: Sodium caproyl acetaldehyde sulfite monohydrate C 10 h 20 C(O)CH 2 CH(OH)SO 3 Na·H 2 O) Preparation
[0062] Put 28 grams of decanoyl acetaldehyde in a 250ml eggplant-shaped flask, stir to dissolve, add 30g of saturated aqueous solution of sodium bisulfite, control the temperature between 20-60°C, stir and react for 1-4 hours, cool down, place, The residue was crystallized with 500ml of ethanol, 100ml of water, and 20ml of methanol, cooled to below 15°C, and placed until the solid was fully separated out, filtered with suction, washed with water and ethyl acetate, filtered with suction, dried, and the solid was washed with ethanol / water (volume Ratio about 0.5:1) about 400-600ml and about 5ml of 1,4-dioxane for recrystallization, cooling to below 15°C, standing until the solid is fully separated, suction filtering, drying to obtain a solid, solid 42 After drying at about ℃ for about 6 hours, 22 g of off-white crystals were obtained, melting point: decomp...
Embodiment 2
[0075] Embodiment 2: caproyl acetaldehyde sodium sulfite 1 hydrate (C 12 h 23 NaO 5 S·H 2 O) Preparation
[0076] Put 22g of methyl nonyl ketone into a 500ml eggplant-shaped bottle, add 30ml of anhydrous ether, 16ml of absolute ethanol, and 80ml of benzene, add 3.6g of sodium metal under stirring, heat, stir to dissolve, and control the temperature 20-60 Between ℃, add 19ml of dry ethyl formate, stir for 4 hours, add acetic acid to make it acidic, separate the water layer, then extract with ether and benzene, combine the organic layer, evaporate the organic layer under reduced pressure, add hydrogen sulfite dropwise Saturated aqueous solution of 20 g of sodium, stirred for 1 h, cooled the reactant to below 15°C, left to stand until the solid was fully separated out, filtered with suction, washed with water and ethyl acetate, filtered with suction, and the solid was washed with ethanol / water (volume ratio 4:1 ) about 400-600ml and about 5ml of 1,4-dioxane for recrystallizat...
example 1
[0089] Reference Example 1: Preparation of Houttuyfonate Sodium Anhydrate
[0090] Take a small amount of the solid product of Example 2 and dry it in vacuum at about 82°C in the presence of phosphorus pentoxide for more than 12 hours, let it cool, and place it for 12 hours to obtain houttuyfonate sodium anhydrous.
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