• 제목/요약/키워드: Azido

검색결과 70건 처리시간 0.021초

인돌 유도체의 Pseudohalogen 화 및 Halogen 화 반응에 관한 연구(II) - 인돌의 Azido 및 Thiocyanato 유도체의 새로운 합성법 (Pseudohalogenation and Halogenation of Indole Derivativs(II) - A Novel Synthetic Method of Azido and Thiocyanato Indoles)

  • 채동규;천문우;조재천
    • 약학회지
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    • 제23권3_4호
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    • pp.187-189
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    • 1979
  • A new method for the synthesis of azido and thiocyanatoindoles by iodine and sodium azide or sodium thiocyanate in acetonitile at room temperature or 60.deg.C was found. Azidoindoles (3-azido-3-methyl -2-phenylindolenine, 3-azido-2,3-diphenylindolenine, 2-azidomethyl-3-metbylindole and 1-azido-1,2,3,4-tetrahyrocarbazole) and thiocyanatoindoles(3-thiocyanatoindole, 2-phenyl-3-thiocyanato indole, 3-methyl-2-phenyl-6-thiocyanatoindole and 2, 3-diphenyl-6-thiocyanatoindole) were prepared by this method in good yields.

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Azido기를 함유한 수용성 포토레지스트 제조 및 감광 특성 (Preparation and Properties of Water-Soluble Photosensitive Polymer with Azido Group)

  • 윤근병;이준태;한정엽;이동호
    • 폴리머
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    • 제31권5호
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    • pp.374-378
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    • 2007
  • Acrylamide(AM), diacetone acrylamide(DAAM) 및 acrylic acid(AAc)를 사용하여 수용성 삼원공중합체를 제조하고, 4-azidoaniline을 반응하여 azido기를 고분자 곁사슬에 도입한 일성분계 포토레지스트를 제조하였다. AM을 주성분으로 하고 DAAM을 공단량체로 사용한 공중합체를 합성하구 광가교제로 4,4'-diazidostilbene 2,2'-disulfuric acid sodium salt(DAS)를 혼합한 이성분계 포토레지스트를 제조하여 두 종류 포토레지스트의 감광특성을 비교하였다. 포토레지스트의 azido기 1 mol에 대한 감광특성은 고분자 곁사슬에 azido기를 가진 일성분계의 경우가 bis-azido기를 가진 이성분계보다 약 4배정도 우수한 감광성을 나타내었다. 직경 $110{\mu}m$ 크기의 원형패턴을 낮은 광세기에서 일성분계 포토레지스트를 사용하여 얻었으며, 노광부와 비노광부 계면에 잔존물이 없이 원형 패턴이 형성되어 블랙 매트릭스용 negative 포토레지스트로 활용이 기대된다.

4-Deoxy-Analogs of p-Nitrophenyl $\beta$-D-Galactopyranosides for Specificity Study with $\beta$-Galactosidase from Escherichia coli

  • 윤신숙;김형근;전근호;신정남
    • Bulletin of the Korean Chemical Society
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    • 제17권7호
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    • pp.599-604
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    • 1996
  • The synthesis is reported of p-nitrophenyl glycosides of D-galactose modified at C-4 with azido- (5), amino- (6) group and fluorine (13). 4-Azido-2,3,6-tri-O-benzoyl-4-deoxy-α-D-galactopyranosyl chloride and 2,3,6-tri-O-benzoyl-4-deoxy-4-fluoro-α-D-galactopyranosyl bromide were coupled with potassium p-nitrophenoxide in the presence of 18-crown-6 giving the corresponding p-nitrophenyl 4-azido-and 4-fluoro-4-deoxy-β-D-galactopyranoside derivatives. p-Nitrophenyl 4-amino-4-deoxy-β-D-galactopyranoside (6) was obtained by selective reduction of p-nitrophenyl 4-azido-4-deoxy-β-D-galactopyranoside (5) using 1,3-propane dithioltriethylamine. These galactoside analogs were slowly hydrolyzed in the increasing rate order of 5, 6 and 13 by β-galactosidase from Escherichia coli.

Preparation and crystal structure of azido bridged one-dimensional polymeric cadmium(II) complex, [Cd(N3)2(2-ethylimidazole)2]

  • Suh, Seung Wook;Kim, Inn Hoe;Kim, Chong-Hyeak
    • 분석과학
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    • 제18권5호
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    • pp.391-395
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    • 2005
  • $[Cd(N_3)_2(2-ethylimidazole)_2]$ 착물을 합성하고 단결정 X-선 회절법으로 구조를 규명하였다. 이 착물은 단사정계, 공간군 Cc, a=16.200(3), b=12.926(3), $c=7.007(1){\AA}$, ${\beta}=102.29(3)^{\circ}$, $V=1433.7(5){\AA}^3$, Z=4로 결정화되었으며, 1874 개의 독립적인 회절반점에 대한 최종 신뢰도 인자 $R_1$${\omega}R_2$ 값은 각각 0.0239 및 0.0604 이었다. Cd(II) 금속 원자는 4개의 azido 리간드와 2개의 2-ethylimidazole 리간드의 질소 원자가 배위되어 약간 찌그러진 팔면체 구조를 나타낸다. c 축 방향으로 배열되어 있는 Cd(II) 금속 원자 사이를 azido 리간드가 end-on (${\mu}-1$,1) 형태로 bridge 하고 2-ethylimidazole 리간드가 시스 형태로 결합하여 이 착물은 1차원의 zigzag 사슬 구조를 형성한다.

A Convenient and Versatile Synthesis of 2' (and 3')-Amino (and azido)-2' (and 3')-deoxyadenosine as Diverse Synthetic Precursors of Cyclic Adenosine Diphosphate Ribose (cADPR)

  • Kim, Beom-Tae;Kim, Seung-Ki;Lee, Seung-Jae;Hwang, Ki-Jun
    • Bulletin of the Korean Chemical Society
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    • 제25권2호
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    • pp.243-248
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    • 2004
  • As diverse synthetic precursors of cyclic adenosine diphosphate ribose (cADPR), several adenosine derivatives in which azido or amino group is introduced at 2'- or 3'-position of the sugar moiety of adenosine were prepared from readily available adenosine via conventional protocols. These synthetic sequence employs very efficient reactions conditions that proceed at or below ambient temperature with actual yields of >80% for each individual step.

A Synthetic Study on Cyclic Phosphate Derivatives of Seconucleosides as Potential Antiviral Agents (II):Synthesis of 3',5'-Cyclic Phosphates of 6-aza-2'-azido-secouridine

  • Shin, Dae-Hong;Yang, Jae-Wook;Kim, Joong-Hyup;Lee, Chong-Kyo;Chung, Won-Keun;Chun, Moon-Woo
    • Archives of Pharmacal Research
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    • 제15권4호
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    • pp.343-346
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    • 1992
  • The synthesis of 6-aza-3', 5'-p-nitrophenylphosphoryltrioxy-2'-azido-2'-deoxy-2', 3' secouridine and 6-aza-3', 5'-phosphoryltrioxy-2'-azido-2'-deoxy-2', 3'-secouridine ammonium salt are described and they were evaluated for antiviral activity primarily against DNA and RNA viruses and found to be inactive, but no significant cytocidal effect was observed against Vero and Hela cell.

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