1,8-Diazabicyclo(5.4.0)undec-7-ene → tert-Butyl 2-(4-methyl-5-oxo-2,5-dihydrofuran-3-yl)-1-oxo-2,8-diazaspiro[4.5]dec-3-ene-8-carboxylate

HRID 1501801노트

반응식

HRID 1501801 반응식
O[CH:2]1[C:6]2([CH2:11][CH2:10][N:9]([C:12]([O:14][C:15]([CH3:18])([CH3:17])[CH3:16])=[O:13])[CH2:8][CH2:7]2)[C:5](=[O:19])[N:4]([C:20]2[CH2:21][O:22][C:23](=[O:26])[C:24]=2[CH3:25])[CH2:3]1.C1CCN2C(=NCCC2)CC1.[B-](F)(F)(F)F.CCN([S+](F)F)CC>C(Cl)Cl>[CH3:25][C:24]1[C:23](=[O:26])[O:22][CH2:21][C:20]=1[N:4]1[CH:3]=[CH:2][C:6]2([CH2:11][CH2:10][N:9]([C:12]([O:14][C:15]([CH3:18])([CH3:17])[CH3:16])=[O:13])[CH2:8][CH2:7]2)[C:5]1=[O:19]

참가 물질

5

반응물 3

HCID 811841,8-Diazabicyclo(5.4.0)undec-7-eneHCID 44517918(Diethylamino)difluorosulfonium tetrafluoroborateHCID 86709492tert-Butyl 4-hydroxy-2-(4-methyl-5-oxo-2,5-dihydrofuran-3-yl)-1-oxo-2,8-diazaspiro[4.5]decane-8-carboxylate

생성물 1

HCID 86709496tert-Butyl 2-(4-methyl-5-oxo-2,5-dihydrofuran-3-yl)-1-oxo-2,8-diazaspiro[4.5]dec-3-ene-8-carboxylate

시약·촉매·용매 1

HCID 6344Dichloromethane용매

실험 절차

To a solution of tert-butyl 4-hydroxy-2-(4-methyl-5-oxo-2,5-dihydrofuran-3-yl)-1-oxo-2,8-diazaspiro[4.5]decane-8-carboxylate (300 mg, 0.819 mmol) in DCM (8.2 mL) at 0° C. was added DBU (370 μA, 2.46 mmol), and XtalFluor-E® (562 mg, 2.46 mmol). The mixture was stirred overnight while warming up to rt, and quenched with aqueous NaHCO3. The organic layer was separated and the aqueous layer was extracted with DCM (30 mL). The combined organic layers were dried (MgSO4) and purified by column chromatography (0-100% EtOAc/hex) to give the title compound. LC/MS: [(M+1)]+=349

후처리

  1. customquenched with aqueous NaHCO3
  2. customThe organic layer was separated
  3. extractionthe aqueous layer was extracted with DCM (30 mL)
  4. dry with materialThe combined organic layers were dried (MgSO4)
  5. custompurified by column chromatography (0-100% EtOAc/hex)

출처 및 근거

ORD 기록
ord-10dd98384937409ca2e08829a8301a6f
출처 데이터셋
uspto-grants-2015_12
특허 번호
US09206198B2

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