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86 results about "Injectable Lyophilized Powder" patented technology

6, 9-bis[(2-aminoethyl)amino]benzo[g]isoquinoline-5, 10-dione dimaleate and synthesis technology thereof

The invention discloses a synthesis technology of 6, 9-bis[(2-aminoethyl)amino]benzo[g]isoquinoline-5, 10-dione dimaleate and relates to the technical field of antineoplastic drug synthesis. The synthesis technology comprises that 3, 4-pyridinedicarboxylic anhydride and hydroquinone undergo a reaction in the presence of a catalyst to produce a first intermediate, the first intermediate and N-t-butoxycarbonylethylenediamine undergo a reaction to produce a second intermediate, the second intermediate is subjected to deprotection, and the product and maleic acid undergo a salt forming reaction to produce a product. The prepared product has purity greater than 99.5% and known single impurity and unknown single impurity contents less than 0.1%. The important intermediate of the synthesis technology has stable properties and is convenient for storage. The synthesis technology allows mild reaction conditions, has simple processes, realizes a low cost and is suitable for industrial production. The invention also provides pixantrone dimaleate. The pixantrone dimaleate can be processed to form a freeze-dried powder injection for treating human aggressive non-Hodgkin's lymphoma with easy recurrence and high treatment difficulty.
Owner:HUBEI LIYI PHARM TECH CO LTD

Sulphur butyl ether-beta-cyclodextrin clathrate compound of cinnarizine, formulated product and preparation method thereof

the invention belongs to the drug technical field, disclosing a sulphur butyl ether-beta- cyclodextrin(SBE-beta-CD) clathrate compound of cinnarizine, a preparation thereof and a preparation method thereof. The water soluble beta- cyclodextrin derivative SBE-beta-CD is used as a coating material to prepare the cinnarizine clathrate compound. The process comprises the following steps that: the BE-beta-CD is dissolved in proper amount of water, the pH value is adjusted by hydrochloric acid, the cinnarizine is added in the mixed solution and stirred for ultrasonic dissolution, the mixed solutionobtained is added with sodium hydroxide to adjust the pH value, a clathrate solution is obtained, and the clathrate solution is subject to freeze drying or spray drying to form clathrate compound powder; the clathrate compound solution obtained is subject to degerming, pyrogen removal, sterile filling and freeze drying to obtain freeze-dry powder needles for injection; the clathrate compound solution is subject to spray drying, and the obtained powder is directly subject to sterile subpackaging or mixed with proper amount of auxiliary materials for sterile subpackaging; and the clathrate compound powder can be mixed with other auxiliary materials to prepare tablets, capsules and particles, etc. according to requirements.
Owner:SHENYANG PHARMA UNIVERSITY

Phospholipid complex of natural Baikal skullcap root active ingredients as well as preparation method and preparation thereof

The invention discloses a phospholipid complex of natural Baikal skullcap root active ingredients and a preparation method thereof. The natural Baikal skullcap root active ingredients mean an active fraction (the baicalein content is more than 50 percent) or an active ingredient (the baicalein content is more than 90 percent) of baicalein extracted and separated from Baikal skullcap roots serving as a Chinese medicament and an active fraction (the wogomin content is more than 50 percent) or an active ingredient (the wogomin content is more than 90 percent) of wogomin. The water solubility and lipid solubility of the natural Baikal skullcap root active ingredients are poor, the dissolubility of the active ingredients is increased along with rise of the pH value of a solution, and the active ingredients are easily chemically degraded under an alkali condition. Due to the insufficiency of the physical and chemical properties of the natural Baikal skullcap root active ingredients, the active ingredients cannot be prepared into injection, and the bioavailability is low after the active ingredients are orally taken. Through a phospholipid complex technology, the water dispersibility and lipophilic property of the Baikal skullcap root active ingredients are obviously improved, and then the Baikal skullcap root active ingredients can be prepared into high-bioavailability oral preparation, freeze-dried injection or lipid emulsion to meet the requirement for injection or mucosa administration.
Owner:BEIJING WEHAND BIO PHARMA CO LTD

Kalii dehydrographolidi succinas freeze-dried powder compound for injection and preparation method thereof

The invention discloses a kalii dehydrographolidi succinas freeze-dried powder compound for injection and a preparation method thereof and relates to the field of medicines. The compound comprises the following active ingredients: 0.1%-99.9% of kalii dehydrographolidi succinas and 99.9%-0.1% of ribavirin. The preparation method of the freeze-dried powder compound for injection comprises the following specific operation steps: directly adding prescription doses of kalii dehydrographolidi succinas and ribavirin and 0.1-50% of another active ingredient such as sodium bicarbonate in water for injection; adding 0.1% of activated carbon and mixing for 30 minutes; adjusting the pH value to 6.5-6.7; then carrying out decarburization circulating filtration through a titanium rod for 30 minutes; afterwards, carrying out degerming circulating filtration through a 0.45 mu m of filter and a 0.22 mu m of filter for 30 minutes; sampling for inspection, filling after the sample meets the requirements and determining filling volume; after filling volume difference is qualified, half-buckling a butyl rubber plug for freeze-drying and putting the product in a freeze-drying box; and after freeze-drying is completed, obtaining the kalii dehydrographolidi succinas freeze-dried powder compound for injection. The preparation method disclosed by the invention has the advantages of being convenient in liquid processing, simplifying the aseptic operation process, improving the stability of the preparation, removing moisture in the product without thermal treatment, and enhancing the reconstitution property (dissolubility) of the preparation.
Owner:HAINAN WEI KANG PHARMA QIANSHAN
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