Abstract:
PURPOSE: Provided are a chiral salen derivative bonded to a polymer and a chiral salen-metal complex produced from the chiral salen derivative polymer, wherein the chiral salen-metal complex is used as a chiral catalyst in an asymmetric epoxidation of olefin. CONSTITUTION: The chiral salen derivative is represented by the formula 1 and the chiral salen-metal complex is represented by the formula 5, wherein m is 0 or 1, n is an integer of 0-24, Y is O, NH, or C(O)NH, p is a polymer insoluble in water and organic solvents, H(1) and H(2) are trans each other, M is a transition metal ion selected from the group consisting of Cr, Mn, V, Fe, Mo, W, Ru, Co, Ti, and Os, and A is an anion selected from the group consisting of Cl-, CH3COO-, PF6-, and SbF6-.
Abstract:
PURPOSE: The trifluoromethylketone derivatives supported on silica gel and a producing method thereof are provided to be used as a useful catalyst in the epoxidation reaction using olefin and Oxone oxidizing agent. CONSTITUTION: The trifluoromethylketone derivatives are represented by formula (3), in which R1 is C1 to C6 alkyl, R2, R3 and R4 are individually hydrogen or C1 to C6 alkyl, I is an integer from 0 to 1, m is methylene from 1 to 6, n is an integer from 0 to 2, and O is methylene from 0 to 16. The trifluoromethylketone derivatives of formula (3) supported on silica gel are produced by reacting trifluoromethylketone derivatives of formula (1) with mercaptoalkylsilanized silica gel of formula (2) in the presence of organic solvents such as azobisisobutyronitrile, benzene, toluene, acetonitrile or chloroform.
Abstract:
본 발명은 뇌에서 mPTP의 작용을 선택적으로 억제하여 미토콘드리아의 기능을 향상시키는 신경보호제로서 작용하여 중추신경계 질환의 치료 또는 예방제로 효과를 보이는 유레아 유도체 또는 이의 약제학적으로 허용 가능한 염, 이들 화합물의 제조방법, 그리고 이들 화합물이 유효성분으로 함유된 약학조성물에 관한 것이다.
Abstract:
본 발명은 메틸리덴-헤테로싸이클릭 화합물과 이의 약학적으로 허용 가능한 염, 이 화합물의 제조방법 및 이 화합물을 유효성분으로 함유하는 약제조성물에 관한 것이다. 본 발명의 화합물은 NF-κB의 활성 과정에 관여하는 IκB 키나제-b (IKK-b)에 대해 강한 저해활성을 가지고 있으므로 류마티스 관절염(rheumatoid arthritis), 유년기 관절염(juvenile arthritis), 천식(asthma), 척추성 관절염(spondyloarthopathies), 통풍(gout), 골관절염(osteoarthritis), 알러지성 비염, 아토피성 피부염, 담마진, 전신 홍반성 루푸스(systemic lupuserythematosus), 건선, 궤양성 대장염, 전신성 염증반응증후군, 폐혈증, 다발성근염, 결절다발성동맥염을 포함하는 각종 염증질환 치료를 위한 약제로써 유용하다.
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 3-phenoxy-4-pyrone, 3-penoxy-4-pyridone or 4-pyridoen derivative and an antibacterial composition are provided to effectively suppress enoyl-ACP reductase(Fabl). CONSTITUTION: A novel 3-penoxy-4-pyrone, 3-phenoxy-4-pyridone or 4-pyridone derivative is denoted by chemical formula 1. A method for preparing the novel 3-phenoxy-4-pyrone derivative of chemical formula 1 comprises: a step of performing Ullmann reaction of kojic acid compound of chemical formula 4 to obtain a compound of chemical formula 5; a step of substituting the compound of chemical formula 5 with a chloride group to prepare a compound of chemical formula 6; a step of performing Arbuzov reation of the compound of chemical formula 6 to obtain a compound of chemical formula 7; and a step of performing Horner-Emmons reaction of compound of chemical formula 7 to introduce a double bond structure to prepare a compound of chemical formula 1a. An antibacterial composition contains the novel 3-phenoxy-4-pyrone, 3-phenoxy-4-pyridone or 4-pyridone derivative or pharmaceutically acceptable salt thereof as an active ingredient.
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.