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1,4-Dibromobutane → 6-(N-(4-bromobutyl)methylsulfonamido)-5-iodo-N-methyl-2-(p-tolyl)furo[2,3-b]pyridine-3-carboxamide

HRID 2190196
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HRID 2190196 반응식
[I:1][C:2]1[CH:3]=[C:4]2[C:15]([C:16]([NH:18][CH3:19])=[O:17])=[C:14]([C:20]3[CH:25]=[CH:24][C:23]([CH3:26])=[CH:22][CH:21]=3)[O:13][C:5]2=[N:6][C:7]=1[NH:8][S:9]([CH3:12])(=[O:11])=[O:10].[Br:27][CH2:28][CH2:29][CH2:30][CH2:31]Br.C(=O)([O-])[O-].[Cs+].[Cs+]>CN(C=O)C>[Br:27][CH2:28][CH2:29][CH2:30][CH2:31][N:8]([C:7]1[N:6]=[C:5]2[O:13][C:14]([C:20]3[CH:21]=[CH:22][C:23]([CH3:26])=[CH:24][CH:25]=3)=[C:15]([C:16]([NH:18][CH3:19])=[O:17])[C:4]2=[CH:3][C:2]=1[I:1])[S:9]([CH3:12])(=[O:10])=[O:11]
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5

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HCID 80561,4-DibromobutaneHCID 10796Cesium carbonateHCID 580523565-iodo-N-methyl-6-(methylsulfonamido)-2-p-tolylfuro[2,3-b]pyridine-3-carboxamide

생성물 1

HCID 580522976-(N-(4-bromobutyl)methylsulfonamido)-5-iodo-N-methyl-2-(p-tolyl)furo[2,3-b]pyridine-3-carboxamide

시약·촉매·용매 1

HCID 6228Dimethylformamide용매

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온도
120 °C

실험 절차

To 5-iodo-N-methyl-6-(methylsulfonamido)-2-(p-tolyl)furo[2,3-b]pyridine-3-carboxamide (crude ˜20%) (400 mg, 0.824 mmol) was added 1,4-dibromobutane (1780 mg, 8.24 mmol) and CESIUM CARBONATE (537 mg, 1.648 mmol) and DMF (4 ml) Heated at 120° C. 30 min. Added water and extracted with EtOAc. Conc. on vac to oil. Added 3 mL ACN and 1 mL water. Filtered with 0.45p filter Purified via HPLC C8 40-80% ACN/H2O (0.1% NH4OH) 40 mL/min over 10 min. to give 6-(N-(4-bromobutyl)methylsulfonamido)-5-iodo-N-methyl-2-(p-tolyl)furo[2,3-b]pyridine-3-carboxamide

후처리

  1. custom30 min
  2. extractionAdded water and extracted with EtOAc
  3. additionAdded 3 mL ACN and 1 mL water
  4. filtrationFiltered with 0.45p
  5. filtrationfilter
  6. customPurified via HPLC C8 40-80% ACN/H2O (0.1% NH4OH) 40 mL/min over 10 min.

출처 및 근거

ORD 기록
ord-33f8d25ed32d45cdb4d23cc240c40399
출처 데이터셋
uspto-grants-2012_12
DOI
10.6084/m9.figshare.5104873.v1
특허 번호
US08324239B2

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