Abstract:
PURPOSE: A pharmaceutical composition containing a novel 1-(4-halophenyl oxo or thio)-3-(4-substituted piperazine-1-yl)propane-2-ol derivative is provided to effectively suppress T type calcium channel activation and to prevent or treat hypertension, cancer, epilepsy, and neurogenic pain. CONSTITUTION: A novel 1-(4-halophenyl oxo or thio)-3-(4-substituted piperazine-1-yl)propan-2-ol derivative is denoted by chemical formula 1. A method for preparing the compound of chemical formula 1 comprises: a step of reacting a compound of chemical formula 2 with chiral epichlorohydrin under the presence of a base and solvent to prepare an epoxy compound of chemical formula 3; and a step of reacting the epoxy compound of chemical formula 3 with piperazine derivative of chemical formula 4. The base is potassium carbonate, sodium carbonate or pyridine. A pharmaceutical composition for preventing or treating diseases caused by overactivation of T type calcium channel contains the derivative or pharmaceutically acceptable salt thereof as an active ingredient.
Abstract:
본 발명은 칼슘이온 채널 조절제로서 유효한 피라졸릴메틸아민-피페라진 유도체 및 이의 약제학적으로 허용 가능한 염, 이들 화합물의 제조방법, 그리고 이 화합물이 갖는 칼슘이온 채널 억제 효과에 의한 질환 치료제로 사용하는 의약적 용도에 관한 것이다. 피라졸릴메틸아민-피페라진 유도체, 칼슘이온 채널 조절제, 뉴런, 탈분극화, 급성통증, 만성통증, 신경병증성 통증, 고혈압치료제
Abstract:
본 발명은 하기 화학식 1로 표시되는 신규 3-페녹시-4-파이론, 3-페녹시-4-피리돈 또는 4-피리돈 유도체, 또는 이의 약학적으로 허용가능한 염, 이의 제조방법 및 이를 유효성분으로 함유하는 항균 조성물에 관한 것으로, 본 발명에 따른 신규 3-페녹시-4-파이론, 3-페녹시-4-피리돈 또는 4-피리돈 유도체를 함유하는 조성물은 박테리아 지방산 생합성 효소인 에노일-ACP 환원효소(FabI)를 효과적으로 억제하므로 항균제로서 유용하게 사용될 수 있다. [화학식 1] . (상기 화학식 1에서, 상기 X, Y, R 1 및 R 2 는 본 명세서에서 정의된 바와 같다.) 박테리아 지방산 생합성, 3-페녹시-4-파이론, 3-페녹시-4-피리돈 또는 4-피리돈, 항균, 에노일-ACP 환원효소, FabI
Abstract:
PURPOSE: A pyrazolylmethylamine-piperazine derivative which is effective as a calcium ion channel modulator is provided to ensure effective activation as an T-type calcium ion channel antagonist and to use as an agent for preventing and treating brain diseases, heart diseases and pain diseases. CONSTITUTION: A pyrazolylmethylamine-peperazine derivative is denoted by chemical formula 1. A pharmaceutical composition for preventing and treating brain diseases, heart diseases or pain diseases by T-type calcium ion channel antagonism contains the pyrazolylmethylamine-peperazine derivative of chemical formula 1 or its pharmaceutically acceptable salt an active ingredient. The brain disease is epilepsy, depression, Parkison's disease, dementia or somnipathy. The heart disease is hypertension, cardiac arrhythmia, myocardial infarction, or congestive failure. The pain disease is chronic pain, acute pain, or neurogenic pain. The pyrazolylmethylamine-peperazine derivative is prepared by binding pyrazolylmethylamine compound of chemical formula 3 with piperazine acetyl halide compound of chemical formula 2.
Abstract:
본 발명은 신규한 피라졸릴카르복스아미도알킬피페라진 유도체와 이의 제조방법 및 이 화합물이 갖는 칼슘이온 채널 억제 효과에 의한 질환 치료제로 사용하는 의약적 용도에 관한 것이다. 피라졸릴카르복스아미도알킬피페라진 유도체, 칼슘이온 채널 억제제, 뉴런, 틸분극화, 급성통증, 만성통증, 신경병증성 통증, 항암제, 고혈압치료제
Abstract:
Alkanoyl piperazine derivatives are provided to block the T-type calcium channel in nerve cells and inhibit side effects, so that the compounds are useful for prevention and treatment of neuropathic pain, hypertension, angina pectoris, heart failure or arrhythmia. The alkanoyl piperazine derivatives represented by the formula(1) are prepared by reacting compounds represented by the formula(2) with carbonyl compound of which ends are substituted by halogen to prepare compounds represented by the formula(3), and reacting the compounds represented by the formula(3) with piperazine compound having a substituent at N-1 site to induce C-N coupling, wherein R is C1-C4 linear or branched alkyl, benzyl optionally substituted by 1 or more than 2 halogen or C1-C4 alkoxy, phenyl optionally substituted by 1 or more than 2 halogen or C1-C4 alkoxy, or C5-C10 monocyclo or C5-C10 bicycloaryl having at least one hetero atom selected from N, O or S; X is halogen, C1-C4 linear or branched alkyl optionally substituted by halogen, C1-C4 alkoxy optionally substituted by halogen or cyano group; and n is an integer from 1 to 10 and m is an integer from 0 to 5.
Abstract:
PURPOSE: Provided are osmium tetroxide fixed onto porous adsorbent of nonionic polymer wherein the osmium tetroxide has low toxicity, and high activity and selectivity, the osmium tetroxide being capable of being recovered by a normal filtration and being reused, and further being capable of producing diols with high purity with high efficiency by being used as catalyst in a dihydroxylation process, a method for preparing the same and its use. CONSTITUTION: The osmium tetroxide-adsorbent complex comprises osmium tetroxide fixed onto porous nonionic polymer adsorbent which is a copolymer containing styrene, divinylbenzene, acrylate, or methacrylate monomer, has a pore with 50 to 1000Å and is 20 to 200 μm, wherein the surface area of the polymer is 200 to 1500 m¬2/g. The method comprises the steps of (a) dispersing porous nonionic polymer adsorbent into solvent, and (b) adding osmium tetroxide into the solution obtained at the step (a) so as to cause reaction between the adsorbent and osmium tetroxide, wherein the solvent is water, C1-C4 alcohol or its mixture solution and the reaction of the step (b) is performed at 0 to 60°C for 2 to 6 hrs. The osmium tetroxide is used as a catalyst in asymmetric dihydroxylation, thereby producing diols.
Abstract:
본 발명은 키랄 에폭사이드를 제조하는 방법에 관한 것으로서, 구체적으로 이온성 액체 용매에서 키랄 살렌금속촉매 존재하에 올레핀과 산화제를 반응시켜 비대칭 에폭시화 반응에 의해 키랄 에폭사이드를 제조하는 방법에 관한 것으로, 본 발명의 제조방법에 의하면 반응 후 고가의 키랄 살렌금속촉매의 회수를 용이하게 하여 반복적으로 사용할 수 있으므로 경제적으로 키랄 에폭사이드를 제조할 수 있다.
Abstract:
PURPOSE: Provided is a process for producing a chiral compound by using an enantioselective ring-opening reaction of epoxides in the presence of a chiral salen metal catalyst, which can recover or reuse the chiral salen metal catalyst. CONSTITUTION: The chiral compound is produced by using the enantioselective ring-opening reaction of epoxides in the presence of a salt represented by the formula 1 and the chiral salen metal catalyst represented by the formula 3. In the formula 1, when X is nitrogen, Z is -C(R5)-, R1 and R2 are each C1-C18 alkyl, R3-R5 are each hydrogen or C1-C18 alkyl and when X is carbon, Z is -C(R5)-C(R6)-, R1 is C1-C18 alkyl, R2-R6 are each hydrogen or C1-C18 alkyl, n is an integer of 1-3, and Y- is an anion capable of forming a salt. In the formula 3, R1-R4 are independently hydrogen, alkyl, carboxyl, aryl, and substituted aryl, X1-X8 are independently hydrogen, halogen, alkyl, silyl, silyloxy, alkenyl, and etc., Y1 and Y2 are each hydrogen and alkyl, M is a metal, and A is an anion.
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-.