2-Bromo-4-fluorobenzene-1-sulfonyl chloride → methyl 7-(2-bromo-4-fluorobenzenesulfonylamino]-4H-benzo[b]pyrrolo[1,2-d][1,4]oxazine-6-carboxylate

HRID 595111노트

반응식

HRID 595111 반응식
[NH2:1][C:2]1[C:14]([C:15]([O:17][CH3:18])=[O:16])=[C:6]2[O:7][CH2:8][CH:9]3[CH:13]=[CH:12][CH2:11][N:10]3[C:5]2=[CH:4][CH:3]=1.[Br:19][C:20]1[CH:25]=[C:24]([F:26])[CH:23]=[CH:22][C:21]=1[S:27](Cl)(=[O:29])=[O:28]>C(Cl)Cl.N1C=CC=CC=1>[Br:19][C:20]1[CH:25]=[C:24]([F:26])[CH:23]=[CH:22][C:21]=1[S:27]([NH:1][C:2]1[C:14]([C:15]([O:17][CH3:18])=[O:16])=[C:6]2[O:7][CH2:8][C:9]3[N:10]([CH:11]=[CH:12][CH:13]=3)[C:5]2=[CH:4][CH:3]=1)(=[O:29])=[O:28]

참가 물질

5

반응물 2

HCID 27782162-Bromo-4-fluorobenzene-1-sulfonyl chlorideHCID 86712820Methyl 7-amino-3a,4-dihydro-1H-benzo[b]pyrrolo[1,2-d][1,4]oxazine-6-carboxylate2회

생성물 1

HCID 70983589methyl 7-(2-bromo-4-fluorobenzenesulfonylamino]-4H-benzo[b]pyrrolo[1,2-d][1,4]oxazine-6-carboxylate수율 14.8%

시약·촉매·용매 2

HCID 1049Pyridine용매HCID 6344Dichloromethane용매

실험 절차

Methyl 7-amino-3a,4-dihydro-1H-benzo[b]pyrrolo[1,2-d][1,4]oxazine-6-carboxylate (Intermediate 17, 0.370 g) was suspended in a mixture of DCM (6 mL) and pyridine (2.43 mL) and 2-bromo-4-fluorobenzenesulfonyl chloride (0.493 g) was added. The resultant deep red solution was stirred at room temperature overnight then concentrated in vacuo. The residue was diluted with DCM and water and passed through a phase separator. The organic layer was concentrated in vacuo and the residue was purified by chromatography on silica, eluting with a mixture of ethyl acetate and cyclohexane with a gradient of 5-30% to give methyl 7-(2-bromo-4-fluorobenzenesulfonylamino]-4H-benzo[b]pyrrolo[1,2-d][1,4]oxazine-6-carboxylate (0.107 g) as a white solid.

후처리

  1. additionwas added
  2. concentrationthen concentrated in vacuo
  3. additionThe residue was diluted with DCM and water
  4. concentrationThe organic layer was concentrated in vacuo
  5. customthe residue was purified by chromatography on silica
  6. washeluting with a mixture of ethyl acetate and cyclohexane with a gradient of 5-30%

출처 및 근거

ORD 기록
ord-b149553c172a4e3684a3369b97c95f14
출처 데이터셋
uspto-grants-2016_01
특허 번호
US09242997B2

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