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    • 2. 发明公开
    • 초임계 유체 공정을 이용한 무정형 세푸록심 악세틸 고체분산체의 제조 방법 및 이 방법으로 제조된 세푸록심악세틸 고체 분산체
    • 通过使用超临界耐溶剂工艺制备非晶质CEFUROXIME AXETIL固体分散体的方法和非晶态CEFUROXIME AXETIL固体分散体的制备方法
    • KR1020040072057A
    • 2004-08-18
    • KR1020030007980
    • 2003-02-08
    • 한미사이언스 주식회사
    • 황성주조국현우종수
    • C07D501/28
    • Y02P20/544
    • PURPOSE: A method for preparing non-crystalline cefuroxime axetil solid dispersion by using supercritical solvent-resistant process and non-crystalline cefuroxime axetil solid dispersion prepared thereby are provided, which non-crystalline cefuroxime axetil solid dispersion has high solubility, uniformed diameter of micrometer or less, increased specific surface area, and does not form gel when it contacts with aqueous solution, so that elution rate cannot be affected by the dissolving time. CONSTITUTION: The method for preparing non-crystalline cefuroxime axetil solid dispersion comprises the steps of: (1) dissolving cefuroxime axetil and pharmaceutically acceptable additives selected from hydrophilic polymer, surfactant and a combination thereof in organic solvent to prepare a mixed solution; (2) spraying the mixed solution into a reactor having supercritical carbon dioxide condition of 45 deg. C and 100 to 150 bar and introducing carbon dioxide into the reactor to form particles of cefuroxime axetil and additive mixture; and (3) introducing additional supercritical carbon dioxide into the reactor, wherein the hydrophilic polymer is selected from celluloses, polyethyleneglycol, povidone and a mixture thereof.
    • 目的:提供一种通过使用超临界溶剂耐受性方法制备非结晶性头孢呋辛酯固体分散体的方法和由此制备的非结晶头孢呋辛酯固体分散体,其非结晶头孢呋辛酯固体分散体具有高溶解度,均匀的直径的千分尺或 较少,比表面积增加,当与水溶液接触时不会形成凝胶,因此溶出速率不会受溶解时间的影响。 构成:非结晶头孢呋辛酯固体分散体的制备方法,包括以下步骤:(1)将头孢呋辛酯和选自亲水性聚合物,表面活性剂及其组合的药学上可接受的添加剂溶解在有机溶剂中以制备混合溶液; (2)将混合溶液喷雾到超临界二氧化碳条件为45度的反应器中。 C和100至150巴,并将二氧化碳引入反应器中以形成头孢呋辛酯和添加剂混合物的颗粒; 和(3)将另外的超临界二氧化碳引入反应器中,其中亲水性聚合物选自纤维素,聚乙二醇,聚维酮及其混合物。
    • 3. 发明公开
    • 세펨 화합물
    • CEPHEM化合物
    • KR1020060061295A
    • 2006-06-07
    • KR1020057022720
    • 2004-05-24
    • 디에스엠 아이피 어셋츠 비.브이.
    • 반덴베르그마르코알렉산더보벤베르그로엘로프아리란즈람즈돈크로우리나마델라인레오니에서더랜드존데이비드데브룸에릭볼린가로엘란트크리스티안로엘
    • C07D501/28C07D501/26
    • C07D501/00
    • The present invention is concerned with a novel cephem compound, with a process for the production of this compound, which process may contain or consist of fermentative steps, chemical steps, and/or biotransformation steps. A cephem compound according to the present invention characterised by formula (I) or a salt or ester thereof, wherein R is selected from the group consisting of (carboxymethylthio)propionyl (carboxyethylthio)propionyl Y- CH2-CO15 wherein Y is phenyl, phenoxy or tetrazolyl HOOC-X-CO wherein X is defined as (CH2)4 or wherein X is defined as (CH2)P-A- (CH2)q, wherein p and q each individually are 0, 1, 2, 3 or 4, and A is CH=CH, C-=C, CHB, C=O, O, S, NH, the nitrogen optionally being substituted or the sulfur optionally being oxidized, and B is hydrogen, halogen, C1-3 alkoxy, hydroxyl, or optionally substituted methyl, with the proviso that p+q should be 2 or 3, when A is CH=CH or C=-C, or p+q should be 3 or 4, when A is CHB, C=O, 0, S or NH or wherein X is (CH2)m-CH=A-(CH2)n or (CH2)m- C=-C-(CH2)n, wherein m and n each individually are 0, 1, 2 or 3 and m+n = 2 or 3, and A is CH or N, or wherein X is (CH2)p-CH=CH- C H=C-(CH2)q wherein p and q each individually are 0 or 1 and p+q = 0 or 1 and wherein R' is selected from the group consisting of OH O- (alkyl 1-6C) wherein the alkyl can be straight or branched and O-C(alkyl 1-6C)-O-(alkyl 1-6C) wherein the alkyl groups can be straight or branched can inter alia be prepared by fermentative techniques according to the invention and in particular using a suitable microorganism possessing or being transformed with the genes needed for conversion of an appropriate acyl-6-aminopenicillanic acid into the desired compound.
    • 本发明涉及一种新的头孢烯化合物,其具有制备该化合物的方法,该方法可以含有或由发酵步骤,化学步骤和/或生物转化步骤组成。 根据本发明的以式(I)表示的头孢烯化合物或其盐或酯,其中R选自(羧甲硫基)丙酰基(羧乙硫基)丙酰基Y-CH 2 -CO 15,其中Y为苯基,苯氧基或 四唑基HOOC-X-CO,其中X定义为(CH 2)4或其中X定义为(CH 2)PA-(CH 2)q,其中p和q各自独立地为0,1,2,3或4,并且A 是CH = CH,C = C,CHB,C = O,O,S,NH,任选被取代的氮或任选被氧化的硫,B是氢,卤素,C 1-3烷氧基,羟基或任选地 取代的甲基,条件是当A为CH = CH或C = -C时,p + q应为2或3,或p + q应为3或4,当A为CHB时,C = O,O,S 或NH或其中X是(CH 2)m -CH = A-(CH 2)n或(CH 2)m -C = -C-(CH 2)n,其中m和n各自独立地是0,1,2或3, m + n = 2或3,A为CH或N,或其中X为(CH 2)p -CH = CH-CH = C-(CH 2)q其中p和q各自为0或1,p + q = 0或1 并且其中R'选自OH -O-(烷基1-6C),其中烷基可以是直链或支链的,和OC(烷基1-6C)-O-(烷基1-6C),其中烷基可以 直链或支链可以特别通过根据本发明的发酵技术制备,特别是使用具有或正在转化合适的酰基-6-氨基青霉烷酸所需化合物的合适微生物进入所需化合物。