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    • 5. 发明授权
    • 세팔로스포란환의 7-아미노 그룹의 아실화 방법
    • CEPHOROSPORANIC环的7-氨基的方法
    • KR100268959B1
    • 2000-10-16
    • KR1019930015169
    • 1993-08-05
    • 핀파엘에스.피.에이.
    • 마우리지오제노니클라우디오푸간티
    • C12P35/00
    • C12P35/04C07D501/00Y02P20/55
    • PURPOSE: A method for acylating a 7-amino group of a cephalosporanic ring is provided to specifically remove a protective group of 7-amino group from a cephalosporanic ring and to be economically advantageous. CONSTITUTION: The method for acylating a 7-amino group of a cephalosporanic ring comprises the steps of: acylating a protected amino group of a cephalosporanic ring with unsubstituted or substituted aminothiazolyl acetic acid; deprotecting the protected amino group to prepare 7-ACA amino thiazolyl protected adduct. Particularly, the protective group of amino is selected from the group consisting of phenyl acetyl and phenoxy acetyl, and the deprotecting step is conducted by hydrolysis in an aqueous solution at a temperature of 0 to 50 deg.C and at a pH of 5 to 9 in the presence of an enzyme selected from the group consisting of penicillin G amidase and penicillin V amidase respectively.
    • 目的:提供一种酰化头孢菌素环的7-氨基的方法,以特异性地从头孢菌素环中除去7-氨基的保护基,并且在经济上是有利的。 构成:用于酰化头孢菌素环的7-氨基的方法包括以下步骤:用未取代或取代的氨基噻唑乙酸酰化头孢烷环的被保护的氨基; 脱保护被保护的氨基以制备7-ACA氨基噻唑基保护的加合物。 特别地,保护基氨基选自苯乙酰基和苯氧基乙酰基,并且脱保护步骤在0至50℃的温度和5至9的pH下在水溶液中水解进行 在分别存在选自青霉素G酰胺酶和青霉素V酰胺酶的酶的存在下。
    • 10. 发明公开
    • β-락탐 항생물질의 제조방법
    • 用于制备BETA-LACTAM抗生素的方法
    • KR1020000022106A
    • 2000-04-25
    • KR1019980710516
    • 1998-04-22
    • 코닌클리즈케 디에스엠 엔.브이.
    • 판데어되스토마스데프롬에릭카푸르야그디쉬챈더
    • C12P37/04
    • C12P37/04C12P35/02C12P35/04C12P37/06
    • PURPOSE: A method for preparing a beta-lactam antibiotic is provided. The class of beta-lactam antibiotics, such as penicillin and cephalosporin antibiotics comprises a great variety of compounds, all having their own activity profile. In general, beta-lactam antibiotics consist of a nucleus, the so-called p- lactam nucleus, which is linked through its primary amino group to the so-called side chain via a linear amide bond. CONSTITUTION: Provided is a method for preparing a beta -lactam antibiotic, wherein an N-substituted beta -lactam, having general formula (I), wherein R0 is hydrogen or C1-3 alkoxy; Y is CH2, oxygen, sulfur, or an oxidized form of sulfur; Z is (a), (b), (c) or (d), wherein R1 is hydrogen, hydroxy, halogen, C1-3 alkoxy, optionally substituted, optionally containing one or more heteroatoms, saturated or unsaturated, branched or straight C1-5 alkyl, preferably methyl, optionally substituted, optionally containing one or more heteroatoms C5-8 cycloalkyl, optionally substituted aryl or heteroaryl, or optionally substituted benzyl; and X is (CH2)m-A-(CH2)n, wherein m and n are the same or different and are chosen from the group of integers 0, 1, 2, 3 or 4, and A is CH=CH, CC, CHB, C=O, optionally substituted nitrogen, oxygen, sulfur or an optionally oxidized form of sulfur, and B is hydrogen, halogen, hydroxy, C1-3 alkoxy, or optionally substituted methyl, or a salt thereof, is contacted with at least one dicarboxylate acylase, or a functional equivalent thereof, and reacted with a precursor for a side chain of the beta -lactam antibiotic in the presence of at least one penicillin acylase, or a functional equivalent thereof
    • 目的:提供一种制备β-内酰胺抗生素的方法。 β-内酰胺类抗生素类,如青霉素和头孢菌素类抗生素包括各种各样的化合物,均具有自己的活性。 一般来说,β-内酰胺抗生素由细胞核组成,即所谓的β-内酰胺核,其通过其伯氨基与所谓的侧链通过线性酰胺键连接。 构成:提供制备β-内酰胺抗生素的方法,其中具有通式(I)的N-取代的β-内酰胺,其中R 0是氢或C 1-3烷氧基; Y是CH 2,氧,硫或硫的氧化形式; Z是(a),(b),(c)或(d),其中R 1是氢,羟基,卤素,C 1-3烷氧基,任选地被取代,任选地含有一个或多个杂原子,饱和或不饱和的,支链或直链C1 -5烷基,优选甲基,任选地被取代,任选地含有一个或多个杂原子C5-8环烷基,任选取代的芳基或杂芳基,或任选取代的苄基; 并且X是(CH 2)mA-(CH 2)n,其中m和n相同或不同,并且选自整数0,1,2,3或4,并且A是CH = CH,CC,CHB ,C = O,任选取代的氮,氧,硫或任选氧化形式的硫,B是氢,卤素,羟基,C 1-3烷氧基或任选取代的甲基或其盐与至少一种 二羧酸酰基转移酶或其功能等同物,并在至少一种青霉素酰基转移酶或其功能等同物的存在下与β-内酰胺抗生素的侧链前体反应