Abstract:
A novel 4-methylimidazol-5-ylcarbonylguanidine derivative is provided to show strong inhibitory activity on NHE-1, a sodium and hydrogen exchange passage, and show excellent heart protecting effect, thereby being usefully used as a therapeutic agent of ischemic heart diseases or a heat protecting agent such as a fibrinolytic enzyme. A 4-methylimidazol-5-ylcarbonylguanidine derivative represented by the formula(1) is at least one selected from the group consisting of (2-(2,3-dichlorophenyl)-4-methyl-1H-imidazol-5-ylcarbonyl)guanidine bis-methanesulfonate, (2-(2,5-dichlorophenyl)-4-methyl-1H-imidazol-5-ylcarbonyl)guanidine bis-methanesulfonate, (2-(3,5-dichlorophenyl)-4-methyl-1H-imidazol-5-ylcarbonyl)guanidine, (2-(2-methoxy-5-chlorophenyl)-4-methyl-1H-imidazol-5-ylcarbonyl)guanidine bis-methanesulfonate, and (2-(2-methoxy-5-fluorophenyl)-4-methyl-1H-imidazol-5-ylcarbonyl)guanidine bis-methanesulfonate and is prepared by reacting a carboxylic acid derivative having a leaving group(L) represented by the formula(2) with guanidine, wherein each R^1 and R^2 is independently H, halogen, trihalomethyl, mesyl, nitro, amino, C1-5 linear or branched alkyl or OR^3(wherein R^3 is H, trihalomethyl, C1-5 linear or branched alkyl or phenyl); X is H, C1-5 linear or branched alkyl or phenyl; and L is halogen, hydroxy, alkoxy, mesylate, or tosylate. A pharmaceutical composition for preventing and treating ischemic cardiac diseases comprises the 4-methylimidazol-5-ylcarbonylguanidine derivative or a pharmaceutically acceptable salt thereof as an effective ingredient.
Abstract:
An oxazol-4-yl-carbonylguanidine derivative is provided to show strong inhibitory activity on NHE-1, which is a sodium/hydrogen exchanger, promote recovery of heart function damage caused by ischemia/reperfusion in an isolated ischemic heart model, and show excellent heat protecting effect by significantly decreasing the size of myocardial infarction, thereby being usefully used in order to prevent and treat ischemic heart diseases such as myocardial infarction, arrhythmia and angina pectoris and used as a heart protecting agent for surgical operation of heart. An oxazol-4-yl-carbonylguanidine derivative is represented by the formula(1), wherein each R^1 and R^2 is independently H, halogen, C1-5 linear or branched alkyl, halogen substituted C1-5 linear or branched alkyl, nitro, amino, methyl sulfonyl, or alkoxy(OR^3(where R^3 is H, trifluoromethyl, C1-5 linear or branched alkyl or phenyl)); and X is H or C1-5 linear or branched alkyl, and is prepared by reacting a carboxylic acid derivative represented by the formula(2) with guanidine or reacting the carboxylic acid of the formula(2) with guanidine in the presence of a base. In the formula(2), R^1, R^2, and X are same as defined above, and L is a group easily left by the guanidine and is one selected from the group consisting of halide, hydroxy, mesylate and tosylate. A pharmaceutical composition for preventing and treating ischemic heart diseases comprises the compound of the formula(1) or a pharmaceutically acceptable salt thereof as an effective ingredient.
Abstract:
본 발명은 하기 화학식 1로 표시되는 신규 옥사졸-4-카르보닐구아니딘 유도체, 이의 약학적으로 허용가능한 염, 이의 제조방법 및 이를 유효성분으로 함유하는 허혈성 심장질환의 예방 및 치료용 약학적 조성물에 관한 것으로, 본 발명에 따른 옥사졸-4-카르보닐구아니딘 유도체는 나트륨/수소 교환통로인 NHE-1에 대하여 강력한 억제작용을 나타내고, 적출 허혈심장모델에서 허혈/재관류에 의한 심장기능 손상의 회복을 증진시키며, 생체 내 허혈동물 모델에서 심근경색의 크기를 유의성있게 감소시켜 우수한 심장보호효과를 나타내므로 심근경색, 부정맥, 협심증 등의 허혈성 심장질환의 예방 및 치료에 유용하게 사용될 수 있으며, 관동맥우회술, 관동맥경피성형술 등 심장시술 시 또는 혈전용해제 등의 재관류요법에 대한 심장보호제 등으로 유용하게 사용될 수 있다.
(상기 식에서, R 1 , R 2 및 X는 본 명세서에서 정의한 바와 같다) 옥사졸-4-카르보닐구아니딘 유도체, NHE-1, 허혈성 심장질환, 심장보호제