Acetic Acid → 1,3-Dihydro-5-nitro-1'-((2-(trimethylsilyl)ethoxy)methyl)spiro(2H-indene-2,3'-(3H)pyrrolo(2,3-b)pyridin)-2'(1'H)-one

HRID 641366노트

반응식

HRID 641366 반응식
Br[CH2:2][C:3]1[CH:8]=[CH:7][C:6]([N+:9]([O-:11])=[O:10])=[CH:5][C:4]=1[CH2:12]Br.[CH3:14][Si:15]([CH3:31])([CH3:30])[CH2:16][CH2:17][O:18][CH2:19][N:20]1[C:24]2=[N:25][CH:26]=[CH:27][CH:28]=[C:23]2[CH2:22][C:21]1=[O:29].C(=O)([O-])[O-].[Cs+].[Cs+].C(O)(=O)C>CN(C=O)C>[N+:9]([C:6]1[CH:5]=[C:4]2[C:3](=[CH:8][CH:7]=1)[CH2:2][C:22]1([C:23]3[C:24](=[N:25][CH:26]=[CH:27][CH:28]=3)[N:20]([CH2:19][O:18][CH2:17][CH2:16][Si:15]([CH3:30])([CH3:14])[CH3:31])[C:21]1=[O:29])[CH2:12]2)([O-:11])=[O:10]

참가 물질

6

반응물 4

HCID 176Acetic AcidHCID 10796Cesium carbonateHCID 108523601,2-Bis(bromomethyl)-4-nitrobenzene2회HCID 574588861-((2-(Trimethylsilyl)ethoxy)methyl)-1,3-dihydro-2H-pyrrolo(2,3-b)pyridin-2-one2회

생성물 1

HCID 591667381,3-Dihydro-5-nitro-1'-((2-(trimethylsilyl)ethoxy)methyl)spiro(2H-indene-2,3'-(3H)pyrrolo(2,3-b)pyridin)-2'(1'H)-one

시약·촉매·용매 1

HCID 6228Dimethylformamide용매

실험 절차

To a solution of 1,2-bis(bromomethyl)-4-nitrobenzene (40.9 g, 132 mmol, described in Intermediate 2) and 1-{[2-(trimethylsilyl)ethoxy]methyl}-1,3-dihydro-2H-pyrrolo[2,3-b]pyridin-2-one (31.5 g, 119 mmol, described in Intermediate 1) in DMF (2 L) was added cesium carbonate (129 g, 397 mmol), portionwise, over 5 min. After 18 h, acetic acid (7.6 mL) was added and the mixture was concentrated to a volume of about 500 mL, then partitioned between EtOAc (1.5 L) and H2O (1 L). The organic layer was washed with H2O (1 L), then brine (500 mL), then dried over Na2SO4, filtered, and concentrated. The crude product was purified by silica gel chromatography, eluting with a gradient of hexane:EtOAc—100:0 to 0:100, to give the title compound. MS: m/z=412 (M+1).

후처리

  1. waitAfter 18 h
  2. concentrationthe mixture was concentrated to a volume of about 500 mL
  3. custompartitioned between EtOAc (1.5 L) and H2O (1 L)
  4. washThe organic layer was washed with H2O (1 L)
  5. dry with materialbrine (500 mL), then dried over Na2SO4
  6. filtrationfiltered
  7. concentrationconcentrated
  8. customThe crude product was purified by silica gel chromatography
  9. washeluting with a gradient of hexane

출처 및 근거

ORD 기록
ord-df9616ad921546acaaa71cda38d355a3
출처 데이터셋
uspto-grants-2010_04
특허 번호
US07696192B2

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