Abstract:
본 발명은 스파이로-벤조퓨란온 유도체, 이의 약학적으로 허용가능한 염, 이의 제조방법 및 이를 유효성분으로 함유하는 인플루엔자 치료용 약학적 조성물에 관한 것으로, 본 발명에 따른 화학식 1의 스파이로-벤조퓨란온 유도체는 정상세포에 대한 독성이 낮을 뿐만 아니라, 인플루엔자 바이러스에 대해 매우 우수한 항바이러스 활성을 가지므로, 인플루엔자의 예방 또는 치료용 약학적 조성물로 유용하게 사용될 수 있다.
Abstract:
The present invention relates to a novel compound, a pharmaceutically acceptable salt or an optical isomer thereof, a method for preparing the same, and a pharmaceutical composition for preventing or treating viral diseases containing the same as an active ingredient. According to the present invention, the novel compound not only has low cytotoxicity but also has excellent antiviral activity against picornavirus such as coxsackievirus, enterovirus, echovirus, poliovirus and rhinovirus, thereby being effectively used as a pharmaceutical composition for preventing or treating viral diseases, such as infantile paralysis, acute hemorrhagic conjunctivitis, viral meningitis, hand-foot-and-mouth diseas, vesicular disease, hepatitis A, myitis, myocarditis, pancreatitis, diabetes, epidemic myalgia, encephalitis, cold, herpangina, foot-and-mouth disease, asthma, chronic obstructive pulmonary disease, pneumonia, sinus infection, or otitis media.
impudicum ) KG03 (KCTC 10325BP)으로부터 분리된 황함유 세포외다당류 p-KG03을 유효성분으로 포함하는 인플루엔자 바이러스 감염의 예방 또는 치료용 약학적 조성물 또는 건강 식품 조성물에 관한 것으로서, 상기 p-KG03은 다른 황함유 다당류 및 종래 알려진 항바이러스 제제에 비해 인플루엔자 바이러스 A에 대한 항바이러스 활성이 뛰어나다.
Abstract:
PURPOSE: A compound, or a pharmaceutically acceptable salt, a hydrate, a solvate, or an isomer thereof is provided to ensure high selectivity and physiological activity to HIV-1 and low toxicity, and to treat HIV infection. CONSTITUTION: An antiviral composition contains a compound of chemical formula I, or a racemic body, a stereomer, or a pharmaceutically acceptable salt thereof. A method for preparing the compound of chemical formula I comprises: a step of reacting a compound of chemical formula II with a compound of chemical formula III and preparing a compound of chemical formula IV; and a step of hydrolyzing the compound of chemical formula IV.
Abstract:
본 발명은 수열합성법을 이용한 그라파이트가 코팅된 균일한 나노 자성입자의 제조방법에 관한 것으로서, 더욱 상세하게는 금속 전구체 및 사카라이드를 용매에 용해시키고 수열합성을 통해 표면에 탄소입자가 흡착된 나노 자성입자를 제조한 후, 건조 및 열처리 과정을 통해 그라파이트 코팅층이 형성된 나노 자성입자를 제조하는 방법에 관한 것이다. 본 발명에 의하면 간단한 공정을 통해 나노 자성입자의 자기적 특성을 해하지 않으면서 균일한 크기의 나노입자를 고수율로 제조할 수 있어 대량생산 공정에 응용하기 적합하며, 제조된 나노 자성입자는 고밀도 자료저장 매체, 자기공명영상용 조영제, 온열치료제, 약물전달 물질 등으로 유용하게 적용할 수 있다.
Abstract:
PURPOSE: A pharmaceutical composition or a health food composition containing sulfur-containing extracellular polysaccharides p-KG03 is provided to prevent and treat influenza viral infection. CONSTITUTION: A pharmaceutical composition for preventing or treating influenza virus A infection contains sulfur-containing extracelullar p-KG03 as an active ingredient, isolated from Gyrodinium impudicum KG03(KCTC 10325BP). The optimal temperature and pH of extracellular polysaccharide p-KG03 is 25-30 deg.C. and pH 8-9. The composition contains an anti-influenza virus formulation such as zanmivir, oseltamivir, amandadine, rimantadine, or ribavirin. A health food composition for preventing or treating influenza viral infection contains sulfur-containing extracelullar p-KG03 as an active ingredient. [Reference numerals] (AA) PFU(control group %); (BB) Concentration(ug/ml)
Abstract:
PURPOSE: A composition is provided to prevent or treat diseases caused by picornavirus and coronavirus by suppressing activations of picornavirus and coronavirus. CONSTITUTION: A composition for preventing or treating diseases caused by picornavirus and coronavirus contains 3,5-diaryl-4,5-dihydro pyrazole derivative of chemical formula 1 and pharmaceutically acceptable salt as an active ingredient. The diseases caused by picornavirus and coronavirus is respiratory disease included coiling or severe acute respiratory syndrome(SARS). The daily dose of the 3,5-diaryl-4,5-dihydro pyrazole derivative is 0.1-1,500 mg.
Abstract:
PURPOSE: Provided are 2,4-pyrimidinedione derivatives which are excellent in selectivity and bioactivity for wild type and mutant HIV-1 and have low toxicity, therefore which can be used for treating AIDS. CONSTITUTION: The 2,4-pyrimidinedione derivatives represented by the formula I are prepared by coupling two compounds represented by the formulas II and III, wherein R1 is phenyl, pyridyl, methyl, amino, nitro, methoxy, trifluoromethyl, and etc., R2 is ethyl, isopropyl, etc., R3 and R4 is independently hydrogen, fluorine, chlorine, methyl, fluoromethyl, nitro, etc., A is oxygen or sulfur, Z is oxygen, sulfur, C=O, NH, or CH2, Z' is equal to the Z but Z' is acetamido if A is oxygen, Y is halogen, methane sulfonyl, toluene sulfonyl, or trifluoromethane sulfonyl.