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    • 1. 发明公开
    • N,N'-비스[2,3-디히드록시프로필]-2,4,6-트리요오드-5-아세틸아미도 이소 프탈아미드의 결정화방법
    • N,N'-二(2,3-二羟基丙基)-2,4,6-三异丙基-5-乙酰氨基乙酰胺的结晶
    • KR1020030032185A
    • 2003-04-26
    • KR1020010063774
    • 2001-10-16
    • 동국제약 주식회사
    • 최경석홍순명이승화신순철송경상박진규차경회임대성이인규백동렬
    • C07F13/00
    • C07C231/22C07C231/14C07C235/48
    • PURPOSE: Provided is a crystallization method of crude N,N'-bis(2,3-dihydroxypropyl)-2,4,6-triiodo-5-acetylamidoisophthalamide in a mixed solvent of water and acetone or methanol and ethanol to obtain N,N'-bis(2,3-dihydroxypropyl)-2,4,6-triiodo-5-acetylamidoisophthalamide having high purity of 99.4% in a high yield of 99.9%. CONSTITUTION: The N,N'-bis(2,3-dihydroxypropyl)-2,4,6-triiodo-5-acetylamidoisophthalamide is represented by formula(1) and is an intermediate of iohexol which is used as a contrast medium in X-ray picture. Its crystallization method comprises the steps of: preparing a crude solution of N,N'-bis(2,3-dihydroxypropyl)-2,4,6-triiodo-5-acetylamidoisophthalamide by using, as starting material, 5-acetamido-2,4,6-triiodoisophthaloyl chloride and 3-amino 1,2-propanediol; concentrating the solvent, dimethylacetamide in the crude solution; adding to the concentrate a mixed solvent consisting of 30-60%(v/v) of water and 40-70%(v/v) of acetone or mixture of 40-60%(v/v) of methanol and 40-60% of ethanol with refluxing to obtain crystals; and cooling the obtained crystals at room temperature then purifying them.
    • 目的:提供粗N,N'-双(2,3-二羟基丙基)-2,4,6-三碘-5-乙酰氨基间苯二甲酰胺在水和丙酮或甲醇和乙醇的混合溶剂中的结晶方法,得到N, (2,3-二羟基丙基)-2,4,6-三碘-5-乙酰氨基间苯二甲酰胺,高纯度为99.4%,99.9%的高收率。 构成:N,N'-双(2,3-二羟基丙基)-2,4,6-三碘-5-乙酰氨基间苯二甲酰胺由式(1)表示,是在X中用作造影剂的碘海醇中间体 -ray图片。 其结晶方法包括以下步骤:以N,N'-双(2,3-二羟基丙基)-2,4,6-三碘-5-乙酰氨基间苯二甲酰胺为原料,使用5-乙酰氨基-2 ,4,6-三碘间苯二酰氯和3-氨基1,2-丙二醇; 浓缩溶剂,二甲基乙酰胺在粗溶液中; 向浓缩物中加入由30-60%(v / v)水和40-70%(v / v)丙酮或40-60%(v / v)甲醇和40-60%(v / v)甲醇的混合物组成的混合溶剂 %的乙醇回流以获得晶体; 并在室温下冷却所得晶体,然后进行纯化。
    • 2. 发明授权
    • 치주염 치료용 미노사이클린 조성물
    • 用于周期性疾病治疗的MINOCYCLINE组合物
    • KR100252699B1
    • 2000-12-01
    • KR1019980009095
    • 1998-03-17
    • 동국제약 주식회사
    • 김완섭손호모김명국박목순박진규
    • A61K31/65
    • PURPOSE: A minocycline composition improved in stability by adding polyethylene glycol, magnesium salts and hydroxypropyl methylcellulose to minocycline salts is provided, which solves problems of precipitation and stability of minocycline as a defect of conventional techniques. CONSTITUTION: In a formulation for the treatment of periodontitis, the composition contains 70 to 95%(w/w) polyethylene glycol 200 to 6,000 and 0.1 to 0.5%(w/w) magnesium salts as a solvent and a stabilizer, and 5 to 10%(w/w) hydroxypropyl methylcellulose as an aqueous polymer with 0.5 to 5%(w/w) minocycline salts.
    • 目的:提供通过向米诺环素盐加入聚乙二醇,镁盐和羟丙基甲基纤维素来改善稳定性的米诺环素组合物,其解决了米诺环素的沉淀和稳定性问题,作为常规技术的缺点。 构成:在用于治疗牙周炎的制剂中,该组合物含有作为溶剂和稳定剂的70-95%(w / w)聚乙二醇200至6,000和0.1至0.5%(w / w)的镁盐,和5至 10%(w / w)羟丙基甲基纤维素作为具有0.5至5%(w / w)米诺环素盐的水性聚合物。
    • 3. 发明公开
    • 카복시펩티다제 Y 프로펩타이드를 융합 파트너로 하여 대장균에서 폴리펩타이드를 발현하는 방법 및 이에 사용된 재조합 벡타 및 그 형질전환체
    • 使用羧甲基纤维素作为混合合成者,重组载体及其所使用的转化体的来自E.COLI的多肽的代谢方法
    • KR1020000066750A
    • 2000-11-15
    • KR1019990014065
    • 1999-04-20
    • 동국제약 주식회사한국과학기술연구원
    • 정봉현오귀환함문선박진규
    • C07K19/00
    • C07K14/395C07K2319/00C12N15/62C12N15/70C12Y304/16005
    • PURPOSE: A novel confusion partner, the carboxypeptidase Y(CPY) propeptide for effective representation of polypeptide in E.coli, a recombinant vector and its transformed body are provided, by which small polypeptides(that is degradable easily in E.coli) can be produced stably. CONSTITUTION: A process for the preparation of novel confusion partner, the carboxypeptidase Y(CPY) propeptide, a recombinant vector and its transformed body comprises of: separating genomic DNA of Saccharomyces serebisiae, and processing PCR(Polymerase Chain Reaction) using the separated genomic DNA as a model chain(the primer used in this stage is synthesized by a DNA synthesizer); separating the cut fraction from agarose gel after cutting the fraction(fraction 1: 287 bp) gained by PCR with a restriction enzyme Nde I and Xho I, inserting into pET22b+ vector, and transforming to E.coli BL21(DE3) to represent; and inoculating the transformed E.coli and not-transformed E.coli to LB(yeast extract 0.5%, trypton 1%, NaCl 1%) liquid medium containing ampicillin, and confirming representation by adding IPTG(Isopropyl-beta-D-thiogalactopyranoside) while culturing at 37°C. The CPY propeptide is existed in the form of non-soluble coagulated body, but is dissolved in urea easily.
    • 目的:提供一种新颖的混淆对象,用于在大肠杆菌中有效表达多肽的羧肽酶Y(CPY)前体肽,重组载体及其转化体,通过其可以将小多肽(易于在大肠杆菌中降解)可以是 稳定生产。 构成:一种制备新的混淆配偶体的方法,羧肽酶Y(CPY)前肽,重组载体及其转化体包括:分离酵母菌的基因组DNA,并使用分离的基因组DNA进行PCR(聚合酶链式反应) 作为模型链(本阶段使用的引物由DNA合成仪合成); 在用限制性内切酶Nde I和Xho I进行PCR后,切割通过PCR获得的级分(级分1:287bp),将切割的级分与琼脂糖凝胶分离,插入pET22b +载体中,并转化至大肠杆菌BL21(DE3) 并将转化的大肠杆菌和未转化的大肠杆菌接种到含有氨苄青霉素的LB(酵母提取物0.5%,1%,1%盐酸1%)液体培养基中,并通过加入IPTG(异丙基-β-D-硫代吡喃半乳糖苷) 同时在37℃培养。 CPY前肽以不溶性凝固体的形式存在,但易溶于尿素。
    • 4. 发明公开
    • 고순도 2,6-디이소프로필페놀의 정제방법
    • 高纯度2,6-二羟基苯酚的精制方法
    • KR1020000047871A
    • 2000-07-25
    • KR1019990054574
    • 1999-12-02
    • 동국제약 주식회사
    • 박진규최경석
    • C07C37/68
    • PURPOSE: A refinement method of 2,6-diisopropylphenol(DIP) is provided which enables DIP with high purity to produce for industrial use so that it is possible to produce DIP in an enormous volume. CONSTITUTION: In the refinement method of 2,6-diisopropylphenol(DIP) of formula 1 with not less than 90% purity, it is characterized by using an inorganic acid in a first step and a base in a second step, extracting in an extraction solvent, distilling again or crystallizing at -20 to -30°C to produce DIP. The inorganic acid is one selected from HCl, H2SO4 and H3PO4 and has 1-10N concentration. The base is selected from NaOH, KOH, LiOH, Ca(OH)2, Mg(OH)2 and Al(OH)3 used at 1-10% concentration and is controlled in pH 8-12. The solvent in extraction is selected from oil ether, n-hexane, carbon tetrachloride, chloroform and methylene chloride.
    • 目的:提供2,6-二异丙基苯酚(DIP)的精制方法,其使得能够生产高纯度的DIP用于工业用途,使得可以大量生产DIP。 构成:在具有不低于90%纯度的式1的2,6-二异丙基苯酚(DIP)的精制方法中,其特征在于在第一步中使用无机酸,在第二步中使用碱,在萃取中萃取 溶剂,再次蒸馏或在-20至-30℃下结晶以产生DIP。 无机酸选自HCl,H2SO4和H3PO4,浓度为1-10N。 碱选自NaOH浓度为1-10%的NaOH,KOH,LiOH,Ca(OH)2,Mg(OH)2和Al(OH)3,控制在pH8-12。 萃取中的溶剂选自油醚,正己烷,四氯化碳,氯仿和二氯甲烷。