Abstract:
본 발명은 항균활성을 갖는 신규한 이중고리를 포함하는 옥사졸리디논 유도체 또는 이의 약학적으로 허용 가능한 염, 이들의 제조방법, 및 상기 옥사졸리디논 유도체 또는 이의 약학적으로 허용 가능한 염을 유효성분으로 포함하는 항균 조성물에 관한 것으로서, 본 발명의 옥사졸리디논 유도체 또는 이의 약학적으로 허용 가능한 염은 다양한 내성 균주를 포함하는 그람 양성균에 대하여 우수한 항균 활성을 나타낸다.
Abstract:
PURPOSE: An antibacterial agent containing novel diphenyl derivative or pharmaceutically acceptable salt thereof is provided to suppress bacterial fatty acid biosynthesis. CONSTITUTION: An antibacerial agent against mycobacteria contains a compound of chemical formula I or pharmaceutically acceptable salt thereof as an active ingredient. The mycobacteria are Mycobacterium tuberculosis. A composition for preventing or treating mycobacterium infections contains the compound or salt as an active ingredient. The mycobacterium infections are tuberculosis. The composition is manufactured in the form of a pharmaceutical composition administered to mammals and birds.
Abstract:
본 발명은 칼슘이온 채널 조절제로서 유효한 신규 이미다졸릴알킬카르보닐 유도체와 이의 제조방법 및 이 화합물이 갖는 칼슘이온 채널 억제 효과에 의한 질환 치료제로 사용하는 의약적 용도에 관한 것이다. 이미다졸릴알킬카르보닐 유도체, 칼슘이온 채널 조절제, 뉴런, 탈분극화, 급성통증, 만성통증, 신경병증성 통증, 고혈압치료제.
Abstract:
PURPOSE: A novel benzoarylureido compound is provided to prevent the degeneration and damage of brain cells caused by beta-amyloid and to prevent or treat a neurodegenerative disorder. CONSTITUTION: A novel benzoarylureido compound has a structure of chemical formula 1. A composition for preventing or treating a neurodegenerative disorder contains a compound of chemical formula 1 or a pharmaceutically acceptable salt thereof as an active ingredient. The composition is used in the form of a tablet, injection, capsule, or pill. A health food for preventing or treating a neurodegenerative disorder contains a compound of chemical formula 1 or a pharmaceutically acceptable salt as an active ingredient.
Abstract:
PURPOSE: Methods for preparing tetrasubstitued pyrazines using baker's yeast are provided, thereby easily and environment-friendly preparing tetrasubstitued pyrazines in water under mild condition. CONSTITUTION: The method for preparing tetrasubstitued pyrazines of formula (2) using baker's yeast comprises the steps of: (1) preparing a solution of baker's yeast; and (2) dissolving beta-keto alpha-oxime carbonyl derivatives of formula (1) in hydrophilic organic solvent and adding the solution into the baker's yeast solution to carry out chemoselective microbial reduction, wherein R1 is methyl, ethyl or phenyl; R2 is hydrogen, methyl or benzyl; R3 is methoxy, ethoxy, benzyloxy or phenylamine; the organic solvent is selected from benzene, toluene and hexane.
Abstract:
PURPOSE: Isoxazole or isoxazoline substituted 1,2,5,6-tetrahydropyridine derivative having high affinity for an acetylcholine receiptor is provided, which compound is useful as a muscarine type acetylcholine receiptor agonist, a recognition improving agent and a treating agent of cerebral nervous disease such as Alzheimer's disease. CONSTITUTION: The isoxazole or isoxazoline substituted 1,2,5,6-tetrahydropyridine derivative represented by formula(1) and a pharmaceutically acceptable salt thereof are provided, wherein R2 is C1-4 alkyl; one of R3 and R4 is one functional group in claim 1 and another of them is H; R5 is hydrogen, hydroxy, hydroxy C1-6 alkyl, C1-6 alkoxymethyl, C1-6 alkoxy, acetoxy, C1-4 alkyl ester, nitrile, aryl, phenylthio, methylthiomethyl, phenylsulfoxide, dimethylthiomethyl, C1-4 alkylketo, C1-4 alkylketo oxime, C1-4 alkylketo C1-5 alkyl oxime, and N-pyrrolidine-2-on; R6 is hydrogen; and R5 and F6 form -CH2OCH2 together. The process for preparing the isoxazole or isoxazoline substituted 1,2,5,6-tetrahydropyridine derivative represented by formula comprises the steps of: reacting 3- or 4-pyridine aldehyde oxime compound of formula(2) with chlorox to prepare nitrile oxide of formula(4); and cycloadddition reaction of nitrile oxide of formula(4) with alkene or alkyne compound of formula(8) or formula(9) to prepare a compound of formula(5) or formula(6); reacting the compound of formula(5) or formula(6) with alkyl iodide to prepare alkyl pyridine salt of formula(7); and reducing the alkyl pyridine salt of formula(7).
Abstract:
PURPOSE: Provided is a method for preparing allylated 7-hydroxycoumarin derivatives effectively and economically in high yield. CONSTITUTION: The method for preparing allylated 7-hydroxycoumarin is characterized by reacting allylhalide of the formula(1) with 7-hydroxycoumarin of the formula(2) to manufacture allylated 7-hydroxycoumarin derivative of the formula(3).
Abstract:
PURPOSE: A method for preparing an allyl aromatic compound and a pyranocoumarin derivative are provided, to use an indium metal catalyst which is stable in water and atmosphere, environment-friendly and recyclable and MMPP or hydrogen peroxide as an oxidizing agent which is cheap, for the economical efficiency. CONSTITUTION: The allyl aromatic compound of the formula 3 is prepared by reacting the allyl halogen compound of the formula 1 with the aromatic compound of the formula 2 in the presence of an indium metal catalyst. The allyl aromatic compound of the formula 5 is prepared by reacting the allyl halogen compound of the formula 1 with the aromatic compound of the formula 4 in the presence of an indium metal catalyst. The decursinol of the formula 6 is prepared by the oxidation cyclization of the allyl aromatic compound of the formula 5 and magnesium monoperoxyphthalate hexahydrate(MMPP) or hydrogen peroxide. In the formulas 1, 2, 3, 4, 5 and 6, X is a halogen atom; R1 and R2 are independent each other and are H or a straight of branched hydrocarbon group of C1-C5; R3 is H or OH; and R4 is H, a methyl group or a phenyl group. Preferably an acid catalyst is added further in the case of MMPP used, and a phase transfer catalyst is added further in the case of hydrogen peroxide used.