Abstract:
The present invention relates to a method for manufacturing a cobalt-based catalyst for Fischer-Tropsch synthesis reaction and, more particularly, to a method for manufacturing a cobalt-based catalyst that is represented by Ir-Co/η-Al_2O_3 manufactured by repeatedly impregnating cobalt and iridium in a spherical eta-alumina support, which has many acid points formed thereon, and drying the impregnated product dozens of times, thus supporting the cobalt and iridium at high density in the support. A catalyst manufactured by the manufacturing method according to the present invention increases the conversion rate of carbon monoxide and the selectivity of liquid hydrocarbon when applied to Fischer-Tropsch synthesis reaction.
Abstract:
본 발명은 아래의 화학식 1로 표시되는 메틸리덴 피페리딘일 옥사졸리딘온 유도체 화합물, 그 염 및 이들의 제조방법에 관한 것이다. 본 발명의 화합물은 메티실린 저항성 스타필로코코스 아우레우스 및 반코마이신 저항성 엔테로코코스 등과 같은 내성 균주를 포함하는 그람 양성균에 대하여 우수한 항균 활성을 나타낸다.
Abstract:
PURPOSE: Methylidene piperidinyl oxazolidinone derivatives and a preparation method thereof are provided, which compounds have improved antimicrobial activity, so that they can be useful for treatment of infection of pathogenic bacteria having resistance to conventional antibiotics. CONSTITUTION: Methylidene piperidinyl oxazolidinone derivatives represented by the formula(1) or pharmaceutically acceptable salts thereof are provided, wherein X is oxygen or sulfur atom; R1 and R2 are independently hydrogen, cyano, alkyl, halogen, acetoxy, ethoxycarbonyl, hydroxy, hydroxyamino, methoxyimino, aminoethyl, or one or more hetero atom selected from oxygen, nitrogen and sulfur; and n is 1 or 2. The method for preparing the methylidene piperidinyl oxazolidinone derivatives of the formula(1) comprises reacting a compound of the formula(2) with a compound of the formula(3) in the presence of catalyst with or without organic solvent.
Abstract translation:目的:提供亚甲基哌啶基恶唑烷酮衍生物及其制备方法,该化合物具有改善的抗微生物活性,因此它们可用于治疗对常规抗生素具有抗性的病原菌的感染。 构成:提供由式(1)表示的亚甲基哌啶恶唑烷酮衍生物或其药学上可接受的盐,其中X是氧或硫原子; R 1和R 2独立地是氢,氰基,烷基,卤素,乙酰氧基,乙氧基羰基,羟基,羟基氨基,甲氧基亚氨基,氨基乙基或一个或多个选自氧,氮和硫的杂原子; 并且n为1或2.制备式(1)的亚甲基哌啶基恶唑烷酮衍生物的方法包括使式(2)化合物与式(3)化合物在催化剂存在或不与有机物 溶剂。