Abstract:
PURPOSE: Carbapenem derivatives with antibacterial activity against antibiotics resistant bacteria and a preparation method thereof are provided, which carbapenem derivatives are useful for treating the infection of hardly treating antibiotics resistant bacteria. CONSTITUTION: The carbapenem derivatives with antibacterial activity against antibiotics resistant bacteria represented by formula (1) or pharmaceutically acceptable salts are provided, wherein X is sulfur or nitrogen atom; Y is hydrogen, nitro or amine present in a certain site of phenyl group; M is hydrogen or ion counterpart forming the pharmaceutically acceptable salts; and the antibiotics resistant bacterium is methicillin resistant Staphylococcus Aureus(MRSA) or ofloxacin Staphylococcus Aures(ORSA). The method for preparing the carbapenem derivatives of formula (1) comprises the steps of: reacting a compound of formula (2) with a compound of formula (3) to carbapenem ester derivatives of formula (4); and removing carboxy protecting group, amine protecting group and hydroxy protecting group from the compound of formula (4), wherein R1 is hydrogen or hydroxy protecting group; R2 is carboxy protecting group; and R3 is amine protecting group.
Abstract:
PURPOSE: Provided is an intermediate, azetidinone compound which is useful in manufacturing beta-methylcarbapenem antibiotics. And its manufacturing method is provided. CONSTITUTION: The intermediate of carbapenem, azetidinone compound, is represented by the formula(1), wherein R is hydrogen or hydroxy protective group, R1 and R2 are individually C1-C15 alkyl, benzyl, represent 5-6 membered cyclic compound to which R1 and R2 are linked, or hetero cyclic group including at least one oxygen or sulfur atom; R3 is lower alkyl group or lower alkylester group; and R4 is benzene, halogen, lower alkyloxy group, or nitro group substituted benzene ring.
Abstract:
본 발명은 그람 양성균은 물론 녹농균을 제외한 그람 음성균에 대하여 우수한 항균 작용을 나타내는, 하기 화학식 1a 또는 화학식 1b로 표시되는 카르바페넴 유도체 화합물, 이의 제조 방법 및 이를 포함하는 약제학적 조성물을 제공한다.
식 중, R은 수소, 카르복실 음이온, 카르복실 보호기, 또는 제약학상 허용가능한 무기 또는 유기염이고, R 1 은 수소 또는 히드록시 보호기이며, R 2 는 C 1 내지 C 5 의 시클릭 또는 비시클릭 저급 알킬기 또는 방향족 알킬기이거나, 또는 질소, 황 및 산소로 이루어지는 군으로부터 선택된 1개 이상의 헤테로 원자를 함유하는 모노 또는 비시클릭, 포화 또는 불포화 고리인, 임의 치환된 헤테로시클릭 라디칼이고, R 3 은 수소, C 1 내지 C 5 의 시클릭 또는 비시클릭 저급 알킬기, 카르바모일기 또는 아세틸기이다.
Abstract:
The invention is related to new carbaphenem derivatives for preparing of 1-.beta.-methyl-carbaphenem derivatives as a intermediate of carbaphenem compound which has excellent and strong antiviral activity. The derivatives may be prepared by the method using Collin's reagent, the method using Corey's reagent, PDC method, PCC method and Swern oxidation method. According to Swern method, the derivatives are prepared in more than 85% yield.
Abstract:
본 발명은 다음 일반식 (I)로 표시되는 1-β-메틸-카바페넴 유도체를 제공하기 위한 것이다.
상기식에서, R 1 은 수소 또는 히드록시 보호기로써 하기 일반식 (II)로 표시된다.
(상기 식에서, R 3 , R 4 , R 5 는 동일 또는 상이할 수 있으며, 각각 C 1 ~C 4 의 저급 알킬기를 나타내고, R 3 , R 4 , R 5 가 동일한 경우에는 메틸 또는 에틸기가 가장 바람직하며, 다른 경우에는 메틸기와 t-부틸기가 조합된 형태가 가장 바람직하다.)R 2 는 수소 또는 카르복시기 보호기, 바람직하기로는 알릴, 4-메톡시 벤질, 4-니트로 벤질기를 나타낸다.
Abstract:
PURPOSE: A 6-amino-N-hydroxyhexanamide compound is provided to ensure strong cell proliferation inhibitory power by inhibiting enzyme activity of histone deacetylase, thereby enabling use as anti-cancer drug or enzyme activity inhibitory agent of histone deacetylase. CONSTITUTION: A compound is selected from a 6-amido-N-hydroxyhexanamide compound represented by chemical formula 1 and pharmaceutically acceptable salts thereof. In chemical formula 1, X is a single bond or selected from the group of C1-6 alkylenyl; and R is hydroxy, C3-8 cycloalkyl, C3-8 cycloalkenyl, C1-6 alkoxy, amino, C1-6 alkylamino, di(C1-6 alkyl)amino, 5-7-membered aryl, 5-7-membered heteroaryl including 1-3 hetero atoms selected from N and O, and 5-7-membered heterocycloalkyl including 1-3 hetero atoms selected from N and O.
Abstract:
본 발명은 하기 화학식 1의 2-아릴메틸아제티딘 카바페넴 유도체 및 그의 제조 방법에 관한 것으로, 본 발명의 2-아릴메틸아제티딘 카바페넴 유도체는 그람 양성균 및 그람 음성균에 대하여 광범위하게 항균활성을 나타내며, 메티실린 내성균주(MRSA) 및 퀴놀론 내성균주(QRSA)에 대한 항균효과가 매우 우수하여, 광범위 항생제 및 난치성 내성균 감염에 대한 항생제로서 유용하다. 화학식 1
상기 식에서, R 1 은 수소, 또는 페닐기의 특정 위치에 치환된 1개 이상의 C 1 -C 3 알킬기, C 1 -C 3 알킬옥시기, 하이드록시기, 아민기, 알킬아민기, 알킬싸이올기, 트라이플루오로메틸기 또는 할로겐 원자이고, R 2 는 수소 또는 C 1 -C 3 알킬기이고, M은 수소 또는 약리학적으로 허용가능한 염을 형성하는 짝이온이다.
Abstract:
PURPOSE: Provided are 2-benzothiazole carbapenem derivatives represented by the formula 1, a preparation method thereof and the composition containing the same. The composition has an excellent antibiotic property and is effective against resistant bacteria such as methicillin resistant Staphylococcus Aureus, MRSA and ofloxacin resistant Staphylococcus Aureus(QRSA). CONSTITUTION: In the carbapenem derivatives represented by the formula 1, M is hydrogen or a pair ion forming pharmaceutically allowed salts. The synthetic rout comprises reacting a compound of the formula 2 with a compound of the formula 3 to make a compound of the formula 4, and eliminating the carboxy protecting group from it. In the formula 4, R1 is a hydroxy protecting group such as tert-butyl silyl or triethylsilyl group; R2 is a carboxy protecting group such as p-nitrobenzyl, aryl or p-methoxybenzyl; R3 is an amine protecting group such as aryloxy carbonyl or p-nitrobenzyloxy carbonyl.
Abstract:
PURPOSE: Provided are azetidinone compound of the formula(I) as an intermediate useful for the manufacture of carbapenem antibiotics and a process for the preparation thereof. CONSTITUTION: The azetidine compound is represented by the formula(I). It is useful as an intermediate for the manufacture of beta-methylcarbapenem antibiotics and manufactured by reacting 4-acetoxy-azetidine compound of the formula(II) and alpha-halo propionic acid amide compound of the formula(III).