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4-Methylmorpholine → (2S)-{4-[4-(1,3-Dioxo-1,3-dihydroisoindol-2-yl)butyl]benzenesulfonylamino}-3-methylbutyramide

HRID 252171
Notes
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Reaction equation

HRID 252171 reaction equation
[O:1]=[C:2]1[C:10]2[C:5](=[CH:6][CH:7]=[CH:8][CH:9]=2)[C:4](=[O:11])[N:3]1[CH2:12][CH2:13][CH2:14][CH2:15][C:16]1[CH:21]=[CH:20][C:19]([S:22](Cl)(=[O:24])=[O:23])=[CH:18][CH:17]=1.CN1CCOCC1.[NH2:33][C@@H:34]([CH:38]([CH3:40])[CH3:39])[C:35]([NH2:37])=[O:36]>CN(C=O)C>[O:1]=[C:2]1[C:10]2[C:5](=[CH:6][CH:7]=[CH:8][CH:9]=2)[C:4](=[O:11])[N:3]1[CH2:12][CH2:13][CH2:14][CH2:15][C:16]1[CH:21]=[CH:20][C:19]([S:22]([NH:33][C@@H:34]([CH:38]([CH3:40])[CH3:39])[C:35]([NH2:37])=[O:36])(=[O:24])=[O:23])=[CH:18][CH:17]=1
ParticipantsProcedureWorkupSources & evidenceReaction notes

Participants

5

Reactant 3

HCID 79724-MethylmorpholineHCID 445637ValinamideHCID 220544564-[4-(1,3-Dioxo-1,3-dihydroisoindol-2-yl)butyl]benzenesulfonyl chloride

Product 1

HCID 58912945(2S)-{4-[4-(1,3-Dioxo-1,3-dihydroisoindol-2-yl)butyl]benzenesulfonylamino}-3-methylbutyramideYield 75.3%

Reagents, catalysts & solvents 1

HCID 6228
Dimethylformamide
Solvent
2×

Procedure

4-[4-(1,3-Dioxo-1,3-dihydroisoindol-2-yl)butyl]benzenesulfonyl chloride 13 (0.45 g, 1.19 mmol) was dissolved in dry DMF (5 mL), and added to a solution of N-methylmorpholine (3 mL) and (2S)-amino-3-methylbutyramide (0.18 g, 1.19 mmol) in DMF (10 mL). The reaction mixture was stirred at room temperature for 66 h. Solvent was removed by rotary evaporation and the residue was purified by flash silica gel chromatography eluting with chloroform/methanol/concentrated ammonium hydroxide (15:1:0.1, v/v) to give the desired product 14 as a white powder (0.41 g, 73% yield). 1H NMR (300 MHz, DMSO-d6) δ 0.72 (d, 3H), 0.76 (d, 3H), 1.77 (m, 4H), 1.79 (m, 1H), 2.68 (m, 2H), 3.40 (m, 1H), 3.60 (m, 2H), 6.92 (s, 1H), 7.21 (s, 1H), 7.34 (d, 2H) 7.50 (d, 1H), 7.65 (d, 2H), 7.82 (m, 4H).

Workup

  1. customSolvent was removed by rotary evaporation
  2. customthe residue was purified by flash silica gel chromatography
  3. washeluting with chloroform/methanol/concentrated ammonium hydroxide (15:1:0.1

Sources & evidence

ORD record
ord-6f1245d229e84e2794540ca924667a8d
Source dataset
uspto-grants-2011_01
DOI
10.6084/m9.figshare.5104873.v1
Patent number
US07868010B2

Reaction notes

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