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Methyl iodide → N-(3,4-difluoro-2-(2-fluoro-4-iodophenylamino)phenyl)-N-methyl cyclopropane sulfonamide

HRID 2357363
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HRID 2357363 반응식
[F:1][C:2]1[C:3]([NH:16][C:17]2[CH:22]=[CH:21][C:20]([I:23])=[CH:19][C:18]=2[F:24])=[C:4]([NH:9][S:10]([CH:13]2[CH2:15][CH2:14]2)(=[O:12])=[O:11])[CH:5]=[CH:6][C:7]=1[F:8].[Li+].[CH3:26][Si]([N-][Si](C)(C)C)(C)C.CI>C1COCC1>[F:1][C:2]1[C:3]([NH:16][C:17]2[CH:22]=[CH:21][C:20]([I:23])=[CH:19][C:18]=2[F:24])=[C:4]([N:9]([CH3:26])[S:10]([CH:13]2[CH2:14][CH2:15]2)(=[O:12])=[O:11])[CH:5]=[CH:6][C:7]=1[F:8]
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참가 물질

5

반응물 3

HCID 6328Methyl iodideHCID 2733832Lithium hexamethyldisilazaneHCID 15602695N-(3,4-difluoro-2-(2-fluoro-4-iodophenylamino)phenyl)cyclopropanesulfonamide

생성물 1

HCID 53492153N-(3,4-difluoro-2-(2-fluoro-4-iodophenylamino)phenyl)-N-methyl cyclopropane sulfonamide

시약·촉매·용매 1

HCID 8028Tetrahydrofuran용매

실험 절차

To a solution of N-(3,4-difluoro-2-(2-fluoro-4-iodophenylamino)phenyl)cyclopropane-sulfonamide (see Example 2) (283.9 mg, 0.61 mmol) in 3 ml anhydrous THF was added at −78° C. a 1M solution of LHMDS (0.6 ml, 0.6 mol) and the solution was stirred for 10 min at this temperature. Then, methyl iodide (0.8 ml, 1.824 g, 12.9 mmol) was added and the mixture was warmed to room temperature and stirred for 7 h. The solvent was removed and the residue extracted using EtOAc and brine. The organic fractions were dried using Na2SO4 and the solvent was removed. The obtained crude product was purified using flash-column chromatography (Si, EtOAc/Hexanes 1:2, Rf=0.45). Yield: 205 mg, 70%). 1H-NMR (500 MHz, CDCl3): δ=7.41-7.39 (d, 1H, J=10 Hz), 7.30-7.29 (d, 1H, J=8.0 Hz), 7.23-7.20 (m, 1H), 6.98-6.93 (q, 1H, J=8.5 Hz), 6.60 (s, 1H, br), 6.51-6.47 (m, 1H), 3.23 (s, 3H), 2.46-2.42 (m, 1H), 1.19-1.16 (m, 2H), 1.04-1.02 (m, 2H); m/z=481 [M−1]−.

후처리

  1. stirringstirred for 7 h
  2. customThe solvent was removed
  3. extractionthe residue extracted
  4. customThe organic fractions were dried
  5. customthe solvent was removed
  6. customThe obtained crude product
  7. customwas purified

출처 및 근거

ORD 기록
ord-912e5c8c8ca247bb91dab8efe479ebd9
출처 데이터셋
uspto-grants-2010_07
DOI
10.6084/m9.figshare.5104873.v1
특허 번호
US07759518B2

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