2-Fluorobenzenesulphonyl chloride → methyl cis-(3aRS,9bRS)-7-(2-fluorobenzenesulfonylamino)-1,3a,4,9b-tetrahydro-2H-furo[2,3-c]chromene-6-carboxylate

HRID 927945노트

반응식

HRID 927945 반응식
[F:1][C:2]1[CH:7]=[CH:6][CH:5]=[CH:4][C:3]=1[S:8](Cl)(=[O:10])=[O:9].[NH2:12][C:13]1[C:22]([C:23]([O:25][CH3:26])=[O:24])=[C:21]2[C:16]([C@H:17]3[CH2:29][CH2:28][O:27][C@H:18]3[CH2:19][O:20]2)=[CH:15][CH:14]=1>C(Cl)Cl.N1C=CC=CC=1>[F:1][C:2]1[CH:7]=[CH:6][CH:5]=[CH:4][C:3]=1[S:8]([NH:12][C:13]1[C:22]([C:23]([O:25][CH3:26])=[O:24])=[C:21]2[C:16]([C@H:17]3[CH2:29][CH2:28][O:27][C@H:18]3[CH2:19][O:20]2)=[CH:15][CH:14]=1)(=[O:10])=[O:9]

참가 물질

5

반응물 2

HCID 1377612-Fluorobenzenesulphonyl chlorideHCID 86713281methyl cis-(3aRS,9bRS)-7-amino-1,3a,4,9b-tetrahydro-2H-furo[2,3-c]chromene-6-carboxylate2회

생성물 1

HCID 86713300methyl cis-(3aRS,9bRS)-7-(2-fluorobenzenesulfonylamino)-1,3a,4,9b-tetrahydro-2H-furo[2,3-c]chromene-6-carboxylate수율 66.3%

시약·촉매·용매 2

HCID 1049Pyridine용매HCID 6344Dichloromethane용매

실험 절차

2-Fluorobenzenesulfonyl chloride (0.5 g) was added to a solution of methyl cis-(3aRS,9bRS)-7-amino-1,3a,4,9b-tetrahydro-2H-furo[2,3-c]chromene-6-carboxylate (Intermediate 19, 0.53 g) in DCM (10 mL) and pyridine (20 mL) and the resultant mixture was stirred at room temperature for 48 hours. The mixture was evaporated to dryness and the residue was treated with water, extracted with DCM, dried (MgSO4) and filtered. The filtrate was evaporated to dryness and the residue was purified by chromatography on silica, eluting with a mixture of ethyl acetate and cyclohexane with a gradient of 0-60% to give methyl cis-(3aRS,9bRS)-7-(2-fluorobenzenesulfonylamino)-1,3a,4,9b-tetrahydro-2H-furo[2,3-c]chromene-6-carboxylate (0.574 g) as a pale yellow solid.

후처리

  1. customThe mixture was evaporated to dryness
  2. additionthe residue was treated with water
  3. extractionextracted with DCM
  4. dry with materialdried (MgSO4)
  5. filtrationfiltered
  6. customThe filtrate was evaporated to dryness
  7. customthe residue was purified by chromatography on silica
  8. washeluting with a mixture of ethyl acetate and cyclohexane with a gradient of 0-60%

출처 및 근거

ORD 기록
ord-63701c34ae034484a4abc7f9c4fff0fe
출처 데이터셋
uspto-grants-2016_03
특허 번호
US09290472B2

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