Abstract:
PURPOSE: Provided is an isothiazol cephem derivative which has broad range of antimicrobial activity. And its producing method is also provided. CONSTITUTION: The cephalosporin compound represented by formula (1) and its pharmaceutically acceptable salts are produced. In the formula, R1 is hydrogen or an amine protecting group generally used in cephalosporin compound; R2 is hydrogen or an oxim protecting group; R3 is hydrogen or a chloro group; R5 is hydrogen or an ester producing group, a salt producing atom or a carboxy protecting group; and R4 is ring substituent having Q group, in which Q is hydrogen, halogen, hydroxy, mercapto, cyano, carboxy, carboxylic acid ester, carbamoyloxymethyl, N,N-dimethylcarbamoyloxymethyl, carbamoyl, N,N-dimethylcarbamoyl, C1 to C4 alkyl, C1 to C4 alkyloxy, halogen substituted methyl, halogen substituted C1 to C4 alkyloxy, aryl or hetero ring substituent. The cephalosporin derivative of the formula (1) is produced by reacting a compound of formula (7) with a compound of formula (8).
Abstract:
PURPOSE: Provided are novel isoxazolylalkylpiperazine derivatives having selective activity for dopamine D3 and D4 receptor represented by the formula(1) and their manufacturing method by reductive amination in the presence of a reductant. The derivatives and their pharmaceutically acceptable salts are useful in the treatment of mental illness. CONSTITUTION: The novel isoxazolylalkylpiperazine derivative of the formula(1) is prepared by reacting amine compound represented by the chemical formula(2) with aldehyde compound shown in the chemical formula(3) in the presence of a reductant selected from NaBH(OAc)3, NaBH3CN and NaBH4 in a reductive amination reaction. In the formulae, R1,R2,R3,R4, and R5 are same or different each other and are hydrogen atom, halogen atom, C1-C6 alkyl, C1-C6 alkoxy, C2-C6 alkenyl, hydroxy, hydroxymethyl, aryl, heteroaryl, amino group, C1-C6 alkylamino, carbonyl, C3-C8 cycloalkyl, or C3-C8 heterocyclic group; R6 is hydrogen atom, halogen atom, alkyl, C1-C6 alkoxy, aryl, pyridyl, heterocyclic, pyrimidyl group; X is CH or nitrogen atom; and n is 3 or 4.
Abstract:
PURPOSE: A 4-aminopiperidine analogue and a producing method thereof are provided, therefore the compound can be useful as a ligand of a muscarine receptor, and it is thus used in study on Alzheimer disease. CONSTITUTION: The 4-aminopiperidine analogue is represented by formula(I), wherein R1, R2, R3, R4, R5, R6 and R7 are hydrogen, cycloalkyl having carbon number of 1 to 6, alkoxy, halogen, hydroxy, hydroxymethyl, aryl, heteroaryl, amino, alkylamino, alkenyl, carbonyl or hetero ring having carbon number of 5 to 7 wherein aryl is a ring having 6 atoms, two rings having 10 atoms or a stable resonance form having double bond to adjacent carbon; heteroaryl is a single ring aromatic group having carbon number of 5 to 6 or a double ring aromatic group having carbon number of 10 in which the heteroaryl has at least one hetero atom of N, O or S; hetero ring consists of 5 to 7 atoms having 1 to 3 of N, O or S; X is carbon or sulfur; and n is an integer of 1 to 2 wherein n is 1 when X is carbon and is 2 when X is sulfur. The 4-aminopiperidine analogue is produced by reacting piperidine or amine(II) with piperazine with ketone(III) in the presence of 1 to 3 equivalent of acetic acid, 2 to 10 equivalent of reducing agent and solvent at room temperature for 3 to 24 hours to produce 4-aminopiperidine(I) and adding NaHCO3 solution and organic solvent to 4-aminopiperidine(I); and drying the extracted 4-aminopiperidine(I), dissolving it, adding 1 to 10 equivalent of hydrogen chloride to the solution, and separating, washing and drying the hydrochloride of 4-aminopiperidine.
Abstract:
PURPOSE: Provided is an isothiazol cephem derivative which has broad range of antimicrobial activity. And its producing method is also provided. CONSTITUTION: The cephalosporin compound represented by formula (1) and its pharmaceutically acceptable salts are produced. In the formula, R1 is hydrogen or an amine protecting group generally used in cephalosporin compound; R2 is hydrogen or an oxim protecting group; R3 is hydrogen or a chloro group; R5 is hydrogen or an ester producing group, a salt producing atom or a carboxy protecting group; and R4 is ring substituent having Q group, in which Q is hydrogen, halogen, hydroxy, mercapto, cyano, carboxy, carboxylic acid ester, carbamoyloxymethyl, N,N-dimethylcarbamoyloxymethyl, carbamoyl, N,N-dimethylcarbamoyl, C1 to C4 alkyl, C1 to C4 alkyloxy, halogen substituted methyl, halogen substituted C1 to C4 alkyloxy, aryl or hetero ring substituent. The cephalosporin derivative of the formula (1) is produced by reacting a compound of formula (7) with a compound of formula (8).
Abstract:
PURPOSE: Provided is a method for manufacturing an iso-oxazole piperazin compound and its salts which can end up developing a lead compound for new drugs. CONSTITUTION: An isooxazol compound is manufactured by the next step: reacting the compound of the formula (2) with the compound of the formula (3) at room temperature, at 0-7 deg.C, in the presence of organic solvent, 0.1-2 equivalent, preferably 1 equivalent of base, and chlorinating agent for 30 minutes-4 hours, preferably 2 hours. Wherein, organic solvent is selected from benzene, methylene chloride, and tetrahydrofuran; a base is selected from methyl amine, ethyl amine, diethyl amine, dimethyl amine, trimethyl amine, cyclohexylamine, diethylisopropylamine, pyridine, or preferably triethylamine; And chlorinating agent is one of chlorine, N-chlorosuccinimide, and sodium hypochlorite. In the formula (1), (2), and (3), R1 and R6 are a phenyl group, benzyl group, halide phenyl group, phenyl group having substituted C1-C6 alkyl group, phenyl group having substituted C1-C6 alkoxy group, methyl phenyl group, or pyridyl group. R2-R5 is hydrogen, and X is nitrogen.
Abstract:
일반식 (II)로 표시되는 카르보닐 화합물을 용매와 염기 존재하에 일반식 (III)으로 표시되는 포스포늄염 화합물이나 또는 일반식 (IV)로 표시되는 포스포네이트 화합물과 반응시켜 새로운 일반식 (I)로 표시되는 [(아릴)이소옥소졸릴]메틸렌-아자비시클로 화합물을 제조하는 것으로, 본 발명 화합물은 무스카린성 아세틸콜린 수용체에 높은 결합 친화도를 나타내므로 알쯔하이머씨 병 등의 뇌신경 질환 치료제로 유용하다.
상기 식들에서, R은 각각 수소, 할로, 알콕시, 시아노, 알킬, 알케닐, 알키닐, 히드록시, 아미노, 니트로, 4-메톡시벤질옥시, 3급-부톡시카르보닐아미노 또는 약제학적으로 가능한 염을, R 1 ,R 2 및R R 는 각각 알킬, 아릴 또는 아랄킬을, X는 할로겐 원자를 각각 표시하며, n은 1 또는 2의 정수이다.
Abstract:
PURPOSE: A cephem compound for an oral administration having a broad spectrum antibacterial activity is prepared by esterifying cephalosporin compound in the presence of solvent. CONSTITUTION: The compound(I) is manufactured by reacting cephalosporin compound(Korea patent application No.1997-36921) and halide compound in the presence of solvent such as acetone, acetonitrile, dioxane, N,N-dimethylformamide, dimethylsulfoxide at -10 to 25°C for 10 min-12hr(preferably at 0 to 5°C for 10 min-1 hr). In formula(I), R1 = H or trityl, R2 = H, trityl, methyl or cyclopentyl; R3 = H, chloro, bromo or methoxy; R4 = acethoxyethyl, pyvaloyloxymethyl or isopropoxycarbonyloxymethyl. It shows a broad spectrum antibacterial activity about a staphylococcus aureus containing gram-positive bacterium and a gram-positive bacterium, especially methicillin-resistant staphylococcus aureus.
Abstract:
본 발명은 일반식( III )의 알데히드와 일반식( II )의 아민 유도체를 용매 존재하에 축합반응시켜 중간체인 일반식( IV )의 이민화합물을 제조하고 카르복시 보호기를 제거하여 일반식(I)로 표시되는 페남 유도체를 제조하는 것으로 일반식(I)은 이성체를 포함한다. 일반식(I)의 화합물은 베타락타마제 저해제로서 기존의 항생제와 일정 비율로 병용하면 항균작용을 증진시키는 유용한 화합물이다.
Abstract:
본 발명은 일반식( II )의 알데히드와 일반식( III )의 할로겐염 유도체를 이중결합시켜 중간체인 일반식( IV )의 비닐 화합물을 제조하고 카르복시 보호기를 제거하여 일반식(I)로 표시되는 신규한 2-베타-알케닐-페남 유도체를 제조하며, 이는 베타락타마제 저해제로서 기존의 항생제와 일정 비율로 병용하면 항균작용을 증진시키는 유용한 화합물이다.