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Acetic Acid → 7-{2-[(4-Cyano-benzenesulfonyl)-methyl-amino]-ethyl}-9-oxa-3,7-diaza-bicyclo[3.3.1]nonane-3-carboxylic acid tert-butyl ester

HRID 1992354
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HRID 1992354 반응식
[C:1]([C:3]1[CH:8]=[CH:7][C:6]([S:9]([N:12]([CH3:16])[CH2:13][CH:14]=O)(=[O:11])=[O:10])=[CH:5][CH:4]=1)#[N:2].[C:17]([O:21][C:22]([N:24]1[CH2:31][CH:30]2[O:32][CH:26]([CH2:27][NH:28][CH2:29]2)[CH2:25]1)=[O:23])([CH3:20])([CH3:19])[CH3:18].C(O)(=O)C.[BH3-]C#N.[Na+]>ClCCl>[C:17]([O:21][C:22]([N:24]1[CH2:25][CH:26]2[O:32][CH:30]([CH2:29][N:28]([CH2:14][CH2:13][N:12]([S:9]([C:6]3[CH:7]=[CH:8][C:3]([C:1]#[N:2])=[CH:4][CH:5]=3)(=[O:11])=[O:10])[CH3:16])[CH2:27]2)[CH2:31]1)=[O:23])([CH3:20])([CH3:18])[CH3:19]
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참가 물질

6

반응물 4

HCID 176Acetic AcidHCID 5003444Sodium cyanoborohydrideHCID 185404123-Boc-9-oxa-3,7-diazabicyclo[3.3.1]nonaneHCID 866259934-Cyano-N-methyl-N-(2-oxo-ethyl)-benzenesulfonamide2회

생성물 1

HCID 685191317-{2-[(4-Cyano-benzenesulfonyl)-methyl-amino]-ethyl}-9-oxa-3,7-diaza-bicyclo[3.3.1]nonane-3-carboxylic acid tert-butyl ester

시약·촉매·용매 1

HCID 6344Dichloromethane용매

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온도
0 °C

실험 절차

A mixture of step (ii) product 4-Cyano-N-methyl-N-(2-oxo-ethyl)-benzenesulfonamide (4.97 g), and 9-oxa-3,7-diaza-bicyclo[3.3.1]nonane-3-carboxylic acid tert-butyl ester (4.95 g; see WO 01/28992) and acetic acid (1.7 ml) in dry dichloromethane (50 ml) was stirred at RT for 3 h and then cooled to 0° C. NaBH3CN (1.96 g, 0.0312 mol) was added and stirring continued at RT overnight under nitrogen atmosphere. The reaction mixture was quenched with water, extracted with dichloromethane, washed with water and brine and dried over sodium sulfate. Solvent evaporated under reduced pressure and the residue was purified by column chromatography over silica gel using 28% ethyl acetate in petroleum ether eluent to give the sub-title compound (2.2 g) as a liquid.

후처리

  1. customThe reaction mixture was quenched with water
  2. extractionextracted with dichloromethane
  3. washwashed with water and brine
  4. dry with materialdried over sodium sulfate
  5. customSolvent evaporated under reduced pressure
  6. customthe residue was purified by column chromatography over silica gel using 28% ethyl acetate in petroleum ether eluent

출처 및 근거

ORD 기록
ord-87cf067e08ae4f2abec07e760bf521be
출처 데이터셋
uspto-grants-2010_01
DOI
10.6084/m9.figshare.5104873.v1
특허 번호
US07648985B2

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