• 제목/요약/키워드: Combinatorial synthesis

검색결과 60건 처리시간 0.023초

Design and Combonatorial Synthesis of Selenoflavonoids and Indole Compounds for Neuroprotective Drug

  • Jeong, Jin-Hyun
    • 대한약학회:학술대회논문집
    • /
    • 대한약학회 2003년도 Proceedings of the Convention of the Pharmaceutical Society of Korea Vol.1
    • /
    • pp.69-71
    • /
    • 2003
  • As recent as 10 years ago, a method of developing new medicine was developed by a new compounding method moving away from an existing one. Combinatorial chemistry made it easier to combine various kinds of compounds in a very short time and with little effort from existing methods. Through combinatorial chemistry, a number of compounds were synthesized using HTS(High Throughput Screening), with many reports reaching a clinical stage in search of new candidate material. (omitted)

  • PDF

조합화학을 이용한 망간(2+)과 유로피움)2+)이 첨가된 Barium Hexaaluminate 형광체의 합성 및 광특성 분석 (Synthesis of Barium Hexaaluminate Phosphros Using Combinatorial Chemistry)

  • 박응석;최윤영;손기선;김창해;박희동
    • 한국세라믹학회지
    • /
    • 제37권2호
    • /
    • pp.134-139
    • /
    • 2000
  • The main objective of the present investigation is to show the feasibility of combinatorial chemistry by applying this method to phosphor syntehses. In this respect barium hexaaluminate phosphor was prepared by the split-pool combinatorial method, which enabled much more rapid search of optimum compositions of target phosphors than conventional synthetic methods. Barium hexaaluminate phosphors doped with Eu2+ exhibit blue emission while those co-doped with Mn2+ and Eu2+ exhibit green emission. Basically, the phosphor doped with 1.3 mole of Ba and 0.06~0.15 mole of Eu2+ exhibit the maximum value of emission intensity at 435${\mu}{\textrm}{m}$. Under the UV and VUV extitations, the barium hexaaluminate phosphor co-doped with Mn2+ and Eu2+ shows strong green emission.

  • PDF

$\beta$-Ketoacetoanilide 염화물의 조합 라이브러리 합성 및 주요 식물병원균에 대한 항균활성 (Synthesis of combinatorial library of $\beta$-ketoacetoanilide chlorides and their antifungal activity against main plant pathogens)

  • 한호규;남기달;배수열;양범승;이선우;조광연
    • 농약과학회지
    • /
    • 제8권1호
    • /
    • pp.8-15
    • /
    • 2004
  • 베타-케토아세트아닐라이드 염화물 유도체의 합성 및 이들 화합물의 대표적인 6종의 식물병원균에 대한 항균력을 조사하였다. Carousel Reaction Stations 장치를 이용하여 조합 합성 기법을 통하여 키틴 이합 체를 염소와 아닐린 유도체와 차례로 반응시켜 89종의 베타-케토아세트아닐라이드 클로라이드 유도체를 얻었다. 합성된 화합물 라이브러리의 항균력(in vivo)을 벼 도열병, 벼 잎집무늬마름병, 토마토 잿빛곰팡이병, 토마토 잎마름역병, 밀 붉은녹병, 보리 흰가루병 등의 주요 식물병에 대한 항균력 시험을 수행하였다. 일반적으로 페닐기의 4위치 (para) 치환체가 존재하는 화합물의 경우에 선택적으로 토마토 잎마름역병을 방제하였다.

In Vitro Combinatorial Mutagenesis of the 65th and 222nd Positions of the Green Fluorescent Protein of Aequarea victoria

  • Nakano, Hideo;Okumura, Reiko;Goto, Chinatsu;Yamane, Tsuneo
    • Biotechnology and Bioprocess Engineering:BBE
    • /
    • 제7권5호
    • /
    • pp.311-315
    • /
    • 2002
  • By the in vitro combinatorial mutagenesis, which is a sequential reaction of PCR mutagenesis and in vitro coupled transcription/translation with Escherichia coli S30 extract, S65 and E222 of green fluorescent protein of Aequarea victoria were comprehensively changed to all possible combinations of amino acids, thus totally 400 mutant (including a wild type) proteins were simultaneously produced and their fluorescent properties were analyzed. Although a few mutations had been reported so far at the 222nd position, replacement E222 to all other19 amino acids gave fluorescent signal to the mutants by changing Ser 65 to Ala together. Among the mutants, replacement to G, A, S, Q, H and C gave relatively high fluorescence. The in vitro combinatorial mutagenesis, therefore, has been proved valuable for comprehensive structure-function studies of proteins.

Effective Generation of Lead Compounds by High Throughput Organic Synthesis: using Multipurpose Privileged Bezopyrans

  • Gong, Young-Dae;Seo, Jin-soo;Hwang, Jong-Yeon;Park, Ji-Yeon;Yoo, Sung-Eun
    • 대한약학회:학술대회논문집
    • /
    • 대한약학회 2003년도 Proceedings of the Convention of the Pharmaceutical Society of Korea Vol.2-1
    • /
    • pp.89-89
    • /
    • 2003
  • Numerous lead compounds, based on multipurpose privileged structures, can be generated that address a variety of targets from a gene family of interest, irrespective of therapeutic area. Solid-phase organic synthesis has been emerged as a powerful technique in generating combinatorial libraries of small organic molecules useful for drug discovery. Heterocyclic compounds provide scaffolds on which pharmacophores can be arranged to yield potent and selective drugs and a variety of heterocycles have been synthesized on solid support. (omitted)

  • PDF

조합화학을 이용한 (Gd0.74Y0.11Tb0.15P1.15)Oδ 형광체 합성 및 발광특성 (Synthesis of (Gd0.74Y0.11Tb0.15P1.15)OδPhosphors Using Combinatorial Chemistry)

  • 이재문;유정곤;박덕현;김지식;손기선
    • 한국세라믹학회지
    • /
    • 제41권5호
    • /
    • pp.381-387
    • /
    • 2004
  • 현재 상용화되어 있는 PDP용 형광체의 물성에 있어서 청색 형광체는 열화, 색도변화, 휘도, 그리고 녹색 형광체는 잔광시간과 색순도, 적색 형광체의 경우에는 색순도에 대한 개선이 필요한 것으로 알려져 있다. 그 중 녹색 형광체로 Willemite 구조의 ZnSiO:Mn 형광체의 경우 발광효율은 우수하나 반면에 잔광시간이 길고 색순도(color purity)가 좋지 않다는 단점을 가지고 있다. 따라서 본 연구에서는 미세조정 조합화학기법을 이용하여 PDP에 적합한 새로운 고효율 형광체를 개발하였다. 화학적으로 정량인 가돌리늄 인산염(gadolinium phosphorous) 대신 인산을 과잉으로 첨가하여 탐색한 다음 과잉인산(excess phosphorous) 첨가 조성을 유지한 채로 가돌리늄(gadolinium)의 일정분율을 이트륨(yttrium)으로 치환하였다. 그 결과 최적 형광체 조성은 (G $d_{0.74}$ $Y_{0.11}$T $b_{0.15}$) $P_{1.15}$ $O_{{\delta}}$이였으며, 현재 상용화된 Z $n_2$ $SiO_4$:Mn 형광체에 비해 상대적으로 높은 발광효율을 나타내었으며, 잔광시간도 줄일 수 있게 되었다.