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(NZ)-N-(7-bromo-3-chloro-1-fluorochromeno[2,3-c]pyridin-5-ylidene)-2-methylpropane-2-sulfinamide → tert-butyl 2-(7-bromo-3-chloro-5-(1,1-dimethylethylsulfinamido)-1-fluoro-5H-chromeno[2,3-c]pyridin-5-yl)acetate

HRID 931625
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HRID 931625 반응식
[Cl-].[C:2]([O:6][C:7](=[O:10])[CH2:8][Zn+])([CH3:5])([CH3:4])[CH3:3].[Br:11][C:12]1[CH:13]=[C:14]2[C:25](=[CH:26][CH:27]=1)[O:24][C:17]1[C:18]([F:23])=[N:19][C:20]([Cl:22])=[CH:21][C:16]=1/[C:15]/2=[N:28]\[S:29]([C:31]([CH3:34])([CH3:33])[CH3:32])=[O:30]>C1COCC1.CCOC(C)=O>[Br:11][C:12]1[CH:13]=[C:14]2[C:25](=[CH:26][CH:27]=1)[O:24][C:17]1[C:18]([F:23])=[N:19][C:20]([Cl:22])=[CH:21][C:16]=1[C:15]2([CH2:8][C:7]([O:6][C:2]([CH3:5])([CH3:4])[CH3:3])=[O:10])[NH:28][S:29]([C:31]([CH3:34])([CH3:33])[CH3:32])=[O:30]
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참가 물질

5

반응물 2

HCID 87400620(NZ)-N-(7-bromo-3-chloro-1-fluorochromeno[2,3-c]pyridin-5-ylidene)-2-methylpropane-2-sulfinamideHCID 178451183HCID 178451183, 화합물

생성물 1

HCID 86658360tert-butyl 2-(7-bromo-3-chloro-5-(1,1-dimethylethylsulfinamido)-1-fluoro-5H-chromeno[2,3-c]pyridin-5-yl)acetate수율 59.1%

시약·촉매·용매 2

HCID 8028Tetrahydrofuran용매
HCID 8857
Ethyl Acetate
용매

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온도
0 °C

실험 절차

A solution of (2-tert-butoxy-2-oxoethyl)zinc(II) chloride (0.5M in Et2O; 116 mL, 57.9 mmol) was cooled to 0° C. and a solution of (Z)—N-(7-bromo-3-chloro-1-fluoro-5H-chromeno[2,3-c]pyridin-5-ylidene)-2-methylpropane-2-sulfinamide (10 g, 23.16 mmol) in THF (100 mL) was added drop wise. The resulting mixture was stirred at for 1 hour 0° C. The reaction mixture was diluted with EtOAc and washed with aqueous saturated solution of NH4Cl, followed by brine. The organic layer was dried over Na2SO4, and concentrated under reduced pressure. The obtained residue was purified by chromatography (0-20% EtOAc/hexanes) to afford tert-butyl 2-(7-bromo-3-chloro-5-(1,1-dimethylethylsulfinamido)-1-fluoro-5H-chromeno[2,3-c]pyridin-5-yl)acetate (7.5 g, 13.69 mmol, 59% yield) as a yellow solid.

후처리

  1. washwashed with aqueous saturated solution of NH4Cl
  2. dry with materialThe organic layer was dried over Na2SO4
  3. concentrationconcentrated under reduced pressure
  4. customThe obtained residue was purified by chromatography (0-20% EtOAc/hexanes)

출처 및 근거

ORD 기록
ord-6b61afbd9cbe4058aa90b646fbf9f519
출처 데이터셋
uspto-grants-2016_03
DOI
10.6084/m9.figshare.5104873.v1
특허 번호
US09296759B2

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