Abstract:
A piperazinyl-propyl-pyrazole derivative is provided to show excellent dopamine D4 affinity, inhibit the psychotic action of a mouse induced by apomorphine and exhibit relatively weak side effect at a mouse rotarod test, thereby being effectively used as a therapeutic and prophylactic agent of central nervous system diseases. A piperazinyl-propyl-pyrazole derivative is represented by a formula(1). In the formula(1), R^1 is C1-10 alkyl, or substituted or unsubstituted aryl or heteroaryl; one of R^2 or R^3 is H, and the other one of R^2 or and R^3 is C1-10 alkyl, benzyl, or substituted or unsubstituted aryl or heteroaryl; each R^4, R^5, R^6, and R^7 is independently H or C1-10 alkyl; each R^8, R^9, R^10, R^11 and R^12 is independently H, halogen, C1-10 alkyl, C1-C10 alkoxy, bis(substituted or unsubstituted aryl)alkylene, benzyl, nitro, hydroxy, cyano, amino, mono- or di-alkylamino, alkylcarbonylamino, aminosulfonyl, mono- or di-alkylaminosulfonyl, alkylcarbonyl, or alkyloxycarbonyl; and a dotted line is a single-bonded line or a double bond, wherein the aromaticity of a pyrazole-ring should be maintained, the aryl is phenyl, the heteroaryl is thiophenyl or pyridyl, and the substituted aryl or heteroaryl is an aryl or a heteroaryl substituted with one to three substituent(s) selected from the group consisting of halogen, nitro, C1-10 alkyl, C1-10 alkoxy, C1-10 haloalkyl, and C1-10 haloalkoxy. A method for preparing the piperazinyl-propyl-pyrazole derivative comprises a step of subjecting a pyrazole aldehyde derivative represented by a formula(2) and a piperazine derivative represented by a formula(3) to a reductive amination reaction. A pharmaceutical composition for treating central nervous system diseases comprise the compound of the formula(1).
Abstract:
본 발명은 5HT6 수용체 길항제로 작용하는 3-아릴-3-메틸-퀴놀린-2,4-디온 화합물, 약학적으로 허용 가능한 이의 염, 이의 제조방법 및 이를 함유하는 중추신경계 질환 치료용 약학적 조성물에 관한 것으로 본 발명의 3-아릴-3-메틸-퀴놀린-2,4-디온은 5HT6 수용체에의 결합력이 우수하고, 다른 수용체에 대한 5HT6 수용체에의 선택성이 뛰어나 5HT6 수용체와 관련된 질환의 치료에 유용하게 사용될 수 있다.
Abstract:
PURPOSE: 1,2,5,6/1,2,3,6- Tetrahydropyridinyltetrahydrocyclopenta/-hexaisoxazole derivatives and a method for preparing the same are provided. The compounds are useful for treatment of dementia and brain disease as muscarinic receptor agonist and operated as tetrahydropyridine bioisostere. CONSTITUTION: 1,2,5,6/1,2,3,6- Tetrahydropyridinyltetrahydrocyclopenta/ -hexaisoxazole derivatives are represented by the formula(1), wherein X is CH2, O or S; n is an integer of 1 or 2; HA is inorganic or organic salt selected from HCl, oxalic acid, p-toluenesulfonic acid, tartaric acid and fumaric acid. A method for preparing the 1,2,5,6/1,2,3,6- Tetrahydropyridinyltetrahydrocyclopenta/-hexaisoxazole derivatives comprises the steps of: (a) adding NaOCl to 3/4-pyridinealdoxime of the formula(2) and cyclopentene/-hexene derivatives in a solvent and cyclizing them to prepare a compound of the formula(4); (b) reacting the compound of the formula(4) with CH3I to prepare 3/4-substituent isomer of the formula(5); and (c) reducing the compound of the formula(5) and adding inorganic and organic acids into the reduced compound.
Abstract:
The present invention relates to a novel isoxazolylalkylpiperazine derivatives having selective biological activity at dopamine D3 or D4 receptors represented by the following formula (1), and its preparation method through reductive amination reaction in the presence of reducing agent, wherein R1, R2, R3, R4, R5, R6, X and n are the same as defined in the specification.
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: Provided are a 1,2,3,4-tetrahydropyrimidine derivative represented by the formula(1), which is useful as a muscarinic receptor agonist in treating imbecility, a pharmaceutically acceptable salt and method for preparation thereof. CONSTITUTION: The 1,2,3,4-tetrahydropyrimidine derivative is represented by the formula(1), wherein R is H, -CH3, -CH2CH3, -CH2(CH2)3CH3, -CH2CH=CH2, CH2C≡CH, C6H5CH2, P-CH2C6H4CH3, P-CH2C6H4-Cl. It is prepared by the following steps of: (a) condensing 5-pyrimidinecarboxylaldehyde represented by the formula(2) and hydroxylamine, to produce compound represented by the formula(3), wherein R1 is -H or -CH3; (b) condensing a compound represented by the formula(3), wherein R1 is H and a compound represented by R2-X, to produce compound represented by the formula(4), wherein R2 is -CH2CH3, -CH2(CH2)3CH3, -CH2CH=CH2, CH2C≡CH, C6H5CH2, P-CH2C6H4CH3, P-CH2C6H4-Cl and X is halogen; (c) methylating a compound represented by the formula(3) or a compound represented by the formula(4) and CH3I, to produce a compound represented by the formula(5), wherein R is H, -CH3, -CH2CH3, -CH2(CH2)3CH3, -CH2CH=CH2, CH2C≡CH, C6H5CH2, P-CH2C6H4CH3, P-CH2C6H4-Cl; and (d) reducing a compound represented by the formula(5) and NaBH4, to produce 1,2,3,4-tetrahydropyrimidine derivative represented by the formula(1), wherein R is H, -CH3, -CH2CH3, -CH2(CH2)3CH3, -CH2CH=CH2, CH2C≡CH, C6H5CH2, P-CH2C6H4CH3, P-CH2C6H4-Cl.
Abstract:
본 발명은 벤지다민(Benzydamine)을 유효성분으로 함유하는 뇌종양(특히, 교모세포종) 등의 암 또는 테모달 내성 교모세포종 예방 또는 치료용 약학적 조성물에 관한 것으로, 본 발명에 따른 벤지다민(Benzydamine)은 뇌종양의 일종인 교모세포종의 증식을 효과적으로 억제할 뿐만 아니라, 종래의 교모세포종 치료제인 테모달(Temodal, temozolomide)에 내성을 보이는 교모세포종 암세포에도 치료효과가 우수하므로, 뇌종양(특히, 교모세포종) 등의 암, 그리고 테모달 내성 교모세포종의 예방 또는 치료용 약학적 조성물의 유효성분으로 유용할 수 있다.