Abstract:
본 발명은 하기 화학식 1로 표시되는 비스(스티릴)피리미딘 및 비스(스티릴)벤젠 유도체, 이의 약학적으로 허용 가능한 염, 이의 제조방법 및 이를 유효성분으로 함유하는 베타아밀로이드 집적 관련 질환의 예방 또는 치료용 약학적 조성물에 관한 것으로, 본 발명의 화학식 1의 유도체 화합물은 베타아밀로이드 집적을 저해하고 베타아밀로이드의 독성을 감소시키며, 베타아밀로이드 집적 관련 질환에서 나타나는 학습 및 기억력 저하를 개선시키는 효과를 나타내므로 본 발명에 따른 화학식 1의 유도체 화합물은 베타아밀로이드 집적 관련 질환의 치료에 유용하게 사용될 수 있다. [화학식 1]
(상기 화학식 1에서, 상기 R 1 , R 2 , R 3 및 X는 본 명세서 내에 정의한 바와 같다.) 알츠하이머병 치료제, 베타아밀로이드, 베타아밀로이드 집적 관련 질환
Abstract:
본 발명은 신규한 벤조아릴우레이도 화합물, 및 이의 퇴행성 뇌질환 예방 또는 치료에 있어서의 용도에 관한 것으로, 보다 상세하게는, 화학식 1의 구조를 갖는 벤조아릴우레이도 화합물, 및 이를 유효성분으로 함유하는 퇴행성 뇌질환의 예방 또는 치료용 조성물에 관한 것이다. 상기 퇴행성 뇌질환은 알츠하이머, 치매, 파킨슨병, 뇌졸중, 아밀로이드증, 픽 질환 (Pick's disease), 루게릭병, 헌팅턴병, 크로이츠펠트-야콥(Creutzfeld-Jakob)병 등일 수 있다. [화학식 1]
Abstract:
PURPOSE: A bis(styryl)pyrimidine and bis(styryl)benzene derivative are provided to reduce beta-amyloid toxicity and to improve memory. CONSTITUTION: A bis(styryl)pyrimidine and bis(styryl)benzene derivative is denoted by chemical formula 1. A method for preparing bis(styryl)pyrimidine and bis(styryl)benzene derivative comprises: a step of condensing a pyridine derivative compound of chemical formula 2 and a benzaldehyde derivative compound of chemical formula 3 under the base presence to obtain a compound of chemical formula 4; and a step of deprotecting the compound of the chemical formula 4. The deprotection is performed in methylchloride solution containing trifluoreacetic acid in hydrochloric acid/ethanol(3:1) solution.
Abstract:
PURPOSE: A pyrazolopyrimidine derivative as a cyclin-dependent kinase inhibitor and a process for preparing the same are provided. The compound inhibits cyclin-dependent kinase(CDK) regulating cell division cycle and has low toxicity. Therefore, it can be useful for prevention and treatment of liver cancer, breast cancer, stomach cancer, colon cancer or rectal cancer caused by activation of CDK. CONSTITUTION: A pyrazolopyrimidine derivative is represented by the formula(1), wherein R1 comprises ortho, meta, or para substituent, and is bromo, chloro, fluoro, methoxy, hydrogen, nitro or amino; R2 is hydrogen or C3 or less of lower alkyl; R3 is hydrogen or C3 or less of lower alkyl, or hydroxyethyl; and n is an integer of 0 or 1. A method for preparing the pyrazolopyrimidine derivative represented by the formula(1) comprises the steps of: reacting 6-methylmercaptopyrazolopyrimidine of the formula(IV) with meta-chloroperbenzoic acid in the presence of an organic solvent such as chloroform or dichloromethane at -10 to 10 deg. C for 2 to 5 hours and at room temperature for 3 to 12 hours to prepare 6-methylsulfonylpyrazolopyrimidine of the formula(II); and nucleophilic substitution reaction of 6-methylsulfonylpyrazolopyrimidine of the formula(II) with hydroxyethylamine in the presence of a mixed organic solvent of isopropanol or n-butanol and dimethylsulfoxide or dimethylformamide at 70 to 100 deg. C for 1 to 6 hours.
Abstract:
The present invention relates to heterodimeric conjugates of neomycin-chloramphenicol, of formula 1, their preparation and their use. Because of their heterodmieric structure, they can recognize both stem and loop of RNA motif and show binding ability to a certain RNA such that they have an enhanced pharmaceutical efficacy and reduced side effect which can be caused by non-specific drugs. For these reasons, they can be effectively used as an antiviral agent, an antibacterial agent or an anticancer drugs.
Abstract:
The present invention relates to aziridinylquinolinedione derivatives having an anti-tumor effect of formula (1), a process for their preparation and their use as an anti-cancer agent, wherein R is a hydrogen atom or C1-C4 alkyl; one of R and R is an aziridinyl or 2-methylaziridinyl and the other one is a halogen atom, C1-C4 alkoxy, azido, or amino.
Abstract:
PURPOSE: Provided are a novel 1-β-methylcarbapenem derivative useful as antibiotics, its pharmaceutically acceptable salt, its manufacturing method and a pharmaceutical composition. containing it. CONSTITUTION: 1-β-methylcarbapenem derivative is represented by the formula(1), wherein R is represented by formulae; X is trifluormethyl or C1-C3 alkyl; Y is C1-C3 linear or branched aliphatic alkyl, C1-C3 sulfonamido alkyl in which one or two C1-C3 alkyl groups are substituted, C1-C3 alkyl substituted or unsubstituted C1-C3 carbo amidoalkyl group, C1-C3 hydroxyalkyl group, and C1-C3 alkyl substituted C1-C3 aminoalkyl or aryl; and Z is C1-C3 alkyl group.
Abstract:
PURPOSE: Provided are a ferulic acid dimer, a pharmaceutically acceptable salt thereof, a method for preparing the same, its use in treating dementia, and an intermediate of the ferulic acid dimer. CONSTITUTION: The ferulic acid dimer is represented by formula 1. In the formula 1, X is carbon, oxygen or nitrogen, and n is 0-3. The salt of the ferulic acid dimer is an inorganic salt including sodium salt, potassium salt, magnesium salt, and calcium salt, or an organic salt including angelic acid, ricin, ethanolamine, N,N'-dibenzylethylene diamine, and alpha-tocopherol. The method comprises reacting a hydroxybenzaldehyde compound of formula 2(wherein X is carbon, oxygen or nitrogen, and n is 0-3) with malonic acid to form the ferulic acid dimer of formula 1.