Water → 3-amino-1'-(pyridin-2-ylmethyl)spiro[furo[3,2-f][1,2]benzisoxazole-5,3'-indol]-2'(1'H)-one

HRID 1407943노트

반응식

HRID 1407943 반응식
F[C:2]1[C:7]([C:8]#[N:9])=[CH:6][C:5]2[C:10]3([CH2:27][O:28][C:4]=2[CH:3]=1)[C:18]1[C:13](=[CH:14][CH:15]=[CH:16][CH:17]=1)[N:12]([CH2:19][C:20]1[CH:25]=[CH:24][CH:23]=[CH:22][N:21]=1)[C:11]3=[O:26].C([NH:32][OH:33])(=O)C.C(=O)([O-])[O-].[Cs+].[Cs+].O>CN(C)C=O>[NH2:9][C:8]1[C:7]2[CH:6]=[C:5]3[C:10]4([C:18]5[C:13](=[CH:14][CH:15]=[CH:16][CH:17]=5)[N:12]([CH2:19][C:20]5[CH:25]=[CH:24][CH:23]=[CH:22][N:21]=5)[C:11]4=[O:26])[CH2:27][O:28][C:4]3=[CH:3][C:2]=2[O:33][N:32]=1

참가 물질

6

반응물 4

HCID 962WaterHCID 1990Acetohydroxamic AcidHCID 10796Cesium carbonateHCID 593524116-Fluoro-2'-oxo-1'-(pyridin-2-ylmethyl)-1',2'-dihydrospiro[1-benzofuran-3,3'-indole]-5-carbonitrile

생성물 1

HCID 593527503-amino-1'-(pyridin-2-ylmethyl)spiro[furo[3,2-f][1,2]benzisoxazole-5,3'-indol]-2'(1'H)-one수율 5%

시약·촉매·용매 1

HCID 6228Dimethylformamide용매

실험 절차

To a stirred solution of 6-fluoro-2′-oxo-1′-(pyridin-2-ylmethyl)-1′,2′-dihydrospiro[1-benzofuran-3,3′-indole]-5-carbonitrile (0.40 g, 2.7 mol) and acetohydroxamic acid (0.60 g, 8.0 mmol) in N,N-dimethylformamide (20 mL) was added cesium carbonate (2.60 g, 8.0 mmol). The reaction mixture was stirred at ambient temperature for 18 h and water was added. The aqueous phase was extracted with ethyl acetate. The combined organic extracts were washed with water and brine, dried over anhydrous sodium sulfate and filtered. The filtrate was concentrated in vacuo. The residue was purified by column chromatography and eluted with (ethyl acetate/hexanes (2/3)+0.1% v/v 7 N methanolic ammonia) to afford 3-amino-1′-(pyridin-2-ylmethyl)spiro[furo[3,2-f][1,2]benzisoxazole-5,3′-indol]-2′(1′H)-one (0.05 g, 5%): mp 190-192° C. (ethyl acetate/hexanes); 1H NMR (300 MHz, DMSO-d6) δ 8.54-8.52 (m, 1H), 7.79-7.73 (m, 1H), 7.35-7.20 (m, 5H), 7.08-6.96 (m, 3H), 6.15 (s, 2H), 5.09-4.85 (m, 4H); 13C NMR (75 MHz, DMSO-d6) δ 177.2, 164.2, 163.3, 158.7, 155.6, 149.9, 143.5, 137.6, 131.7, 129.4, 126.4, 124.5, 123.6, 123.1, 121.9, 116.8, 111.5, 109.9, 91.4, 81.0, 56.8, 45.3; MS (ES+) m/z 384.9 (M+1).

후처리

  1. extractionThe aqueous phase was extracted with ethyl acetate
  2. washThe combined organic extracts were washed with water and brine
  3. dry with materialdried over anhydrous sodium sulfate
  4. filtrationfiltered
  5. concentrationThe filtrate was concentrated in vacuo
  6. customThe residue was purified by column chromatography
  7. washeluted with (ethyl acetate/hexanes (2/3)+0.1% v/v 7 N methanolic ammonia)

출처 및 근거

ORD 기록
ord-8ab0137723e54278a536cac4e87e4e66
출처 데이터셋
uspto-grants-2014_12
특허 번호
US08916580B2

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