Ethyl 2-amino-3-(hydroxy(oxido)amino)benzoate → HCID 18355136, 화합물

HRID 1533797노트

반응식

HRID 1533797 반응식
[N+:1]([C:4]1[C:5]([NH2:15])=[C:6]([CH:12]=[CH:13][CH:14]=1)[C:7]([O:9][CH2:10][CH3:11])=[O:8])([O-:3])=[O:2].[C:16](Cl)(=[O:23])[C:17]1[CH:22]=[CH:21][N:20]=[CH:19][CH:18]=1>CN(C)C1C=CC=CC=1.C(OCC)(=O)C.C(=O)([O-])O.[Na+]>[N+:1]([C:4]1[C:5]([NH:15][C:16]([C:17]2[CH:22]=[CH:21][N:20]=[CH:19][CH:18]=2)=[O:23])=[C:6]([CH:12]=[CH:13][CH:14]=1)[C:7]([O:9][CH2:10][CH3:11])=[O:8])([O-:3])=[O:2]

참가 물질

6

반응물 2

HCID 393670Ethyl 2-amino-3-(hydroxy(oxido)amino)benzoateHCID 417436Pyridine-4-carbonyl chloride

생성물 1

HCID 18355136HCID 18355136, 화합물수율 19%

시약·촉매·용매 3

HCID 949N,N-Dimethylaniline용매HCID 8857Ethyl Acetate용매HCID 516892Sodium Bicarbonate용매

실험 절차

To a solution of ethyl 3-nitro-2-aminobenzoate (700 mg) in N,N-dimethylaniline (7 ml) was added dropwise isonicotinoyl chloride (2.96 g) at 120° C. for 3 hours. After cooling, the reaction mixture was diluted with ethyl acetate and saturated sodium hydrogen carbonate aqueous solution. The organic layer was separated and washed with brine. The solution was dried over magnesium sulfate and concentrated in vacuo. The residue was purified by silica gel column chromatography (n-hexane:ethyl acetate=9:1) to give ethyl 3-nitro-2-(4-pyridyl)carbonylaminobenzoate (200 mg).

후처리

  1. temperatureAfter cooling
  2. customThe organic layer was separated
  3. washwashed with brine
  4. dry with materialThe solution was dried over magnesium sulfate
  5. concentrationconcentrated in vacuo
  6. customThe residue was purified by silica gel column chromatography (n-hexane:ethyl acetate=9:1)

출처 및 근거

ORD 기록
ord-84c4dc68cc51443997fc16e98c450fa2
출처 데이터셋
uspto-grants-2001_03
특허 번호
US06207693B1

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