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

HRID 927910노트

반응식

HRID 927910 반응식
[Br:1][C:2]1[CH:7]=[C:6]([F:8])[CH:5]=[CH:4][C:3]=1[S:9](Cl)(=[O:11])=[O:10].[NH2:13][C:14]1[C:23]([C:24]([O:26][CH3:27])=[O:25])=[C:22]2[C:17]([C@H:18]3[CH2:30][CH2:29][O:28][C@H:19]3[CH2:20][O:21]2)=[CH:16][CH:15]=1>C(Cl)Cl.N1C=CC=CC=1>[Br:1][C:2]1[CH:7]=[C:6]([F:8])[CH:5]=[CH:4][C:3]=1[S:9]([NH:13][C:14]1[C:23]([C:24]([O:26][CH3:27])=[O:25])=[C:22]2[C:17]([C@H:18]3[CH2:30][CH2:29][O:28][C@H:19]3[CH2:20][O:21]2)=[CH:16][CH:15]=1)(=[O:11])=[O:10]

참가 물질

5

반응물 2

HCID 27782162-Bromo-4-fluorobenzene-1-sulfonyl chlorideHCID 86713281methyl cis-(3aRS,9bRS)-7-amino-1,3a,4,9b-tetrahydro-2H-furo[2,3-c]chromene-6-carboxylate2회

생성물 1

HCID 86713280methyl cis-(3aRS,9bRS)-7-(2-bromo-4-fluorobenzenesulfonylamino)-1,3a,4,9b-tetrahydro-2H-furo[2,3-c]chromene-6-carboxylate수율 97.7%

시약·촉매·용매 2

HCID 1049Pyridine용매HCID 6344Dichloromethane용매

실험 절차

2-Bromo-4-fluorobenzenesulfonyl chloride (0.335 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, 0.255 g) in DCM (4 mL) and pyridine (2 mL) and the resultant mixture was stirred at room temperature overnight. The mixture 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 0-100% to give methyl cis-(3aRS,9bRS)-7-(2-bromo-4-fluorobenzenesulfonylamino)-1,3a,4,9b-tetrahydro-2H-furo[2,3-c]chromene-6-carboxylate (0.486 g) as a yellow gum.

후처리

  1. customThe mixture was evaporated to dryness
  2. customthe residue was purified by chromatography on silica eluting with a mixture of ethyl acetate and cyclohexane with a gradient of 0-100%

출처 및 근거

ORD 기록
ord-838aa4d7e68b41648542f0b34add819e
출처 데이터셋
uspto-grants-2016_03
특허 번호
US09290472B2

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