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Sodium hydride → Ethyl 10-(1-t-butoxycarbonyl-3-pyrrolidinyloxy)-9-fluoro-2,3-dihydro-3-methyl-7-oxo-7H-pyrido[1,2,3de][1,4]-benzoxazine-6-carboxylate

HRID 465379
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HRID 465379 반응식
[F:1][C:2]1[C:3](F)=[C:4]2[O:9][CH2:8][CH:7]([CH3:10])[N:6]3[CH:11]=[C:12]([C:17]([O:19][CH2:20][CH3:21])=[O:18])[C:13](=[O:16])[C:14]([CH:15]=1)=[C:5]23.[C:23]([O:27][C:28]([N:30]1[CH2:34][CH2:33][CH:32]([OH:35])[CH2:31]1)=[O:29])([CH3:26])([CH3:25])[CH3:24].C1CCN2C(=NCCC2)CC1.[H-].[Na+]>C(Cl)(Cl)Cl.CS(C)=O>[C:23]([O:27][C:28]([N:30]1[CH2:34][CH2:33][CH:32]([O:35][C:3]2[C:2]([F:1])=[CH:15][C:14]3[C:13](=[O:16])[C:12]([C:17]([O:19][CH2:20][CH3:21])=[O:18])=[CH:11][N:6]4[CH:7]([CH3:10])[CH2:8][O:9][C:4]=2[C:5]=34)[CH2:31]1)=[O:29])([CH3:26])([CH3:24])[CH3:25]
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참가 물질

7

반응물 4

HCID 24758Sodium hydrideHCID 811841,8-Diazabicyclo(5.4.0)undec-7-eneHCID 3751628Ethyl 9,10-difluoro-3-methyl-7-oxo-3,7-dihydro-2H-[1,4]oxazino[2,3,4-ij]quinoline-6-carboxylateHCID 44169391-Boc-3-pyrrolidinol

생성물 1

HCID 15021550Ethyl 10-(1-t-butoxycarbonyl-3-pyrrolidinyloxy)-9-fluoro-2,3-dihydro-3-methyl-7-oxo-7H-pyrido[1,2,3de][1,4]-benzoxazine-6-carboxylate
수율 54.3%

시약·촉매·용매 2

HCID 679Dimethyl Sulfoxide용매HCID 6212Chloroform용매

실험 절차

To a mixture of 263 mg of ethyl 9,10-difluoro-2,3-dihydro-3-methyl-7-oxo-7H-pyrido[1,2,3-de][1,4]-benzoxazine6-carboxylate, 318 mg of 1-t-butoxycarbonyl-3-hydroxypyrrolidine, 194 mg of DBU and 3 ml of DMSO was added 74 mg of 55% sodium hydride while the former was stirred at room temperature for 2.5 hours. After the resultant mixture was stirred at room temperature, the reaction mixture was diluted with chloroform and then successively washed with 10% citric acid and saturated saline. The organic layer was dried over anhydrous sodium sulfate and then concentrated to dryness. The residue was purified by chromatography on silica gel (chloroform/methanol: 100/1), whereby 220 mg of ethyl 10-(1-t-butoxycarbonyl-3-pyrrolidinyloxy)-9-fluoro2,3-dihydro-3-methyl-7-oxo-7H-pyrido[1,2,3-de][1,4]-benzoxazine-6-carboxylate was obtained.

후처리

  1. washsuccessively washed with 10% citric acid and saturated saline
  2. dry with materialThe organic layer was dried over anhydrous sodium sulfate
  3. concentrationconcentrated to dryness
  4. customThe residue was purified by chromatography on silica gel (chloroform/methanol: 100/1)

출처 및 근거

ORD 기록
ord-1a4325c579004043954f51169bd62068
출처 데이터셋
uspto-grants-1992_10
DOI
10.6084/m9.figshare.5104873.v1
특허 번호
US05153203

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