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4-Methylmorpholine → N-Benzyloxy-3-(2-methylpropyl)-2,5-dioxo-1-(2-phenylethyl)-3-pyrrolidineacetamide

HRID 727556
Notes
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Reaction equation

HRID 727556 reaction equation
C1N=CN(C(N2C=NC=C2)=O)C=1.[CH3:13][CH:14]([CH3:35])[CH2:15][C:16]1([CH2:31][C:32](O)=[O:33])[CH2:20][C:19](=[O:21])[N:18]([CH2:22][CH2:23][C:24]2[CH:29]=[CH:28][CH:27]=[CH:26][CH:25]=2)[C:17]1=[O:30].Cl.[CH2:37]([O:44][NH2:45])[C:38]1[CH:43]=[CH:42][CH:41]=[CH:40][CH:39]=1.CN1CCOCC1>C(Cl)Cl>[CH2:37]([O:44][NH:45][C:32](=[O:33])[CH2:31][C:16]1([CH2:15][CH:14]([CH3:13])[CH3:35])[CH2:20][C:19](=[O:21])[N:18]([CH2:22][CH2:23][C:24]2[CH:25]=[CH:26][CH:27]=[CH:28][CH:29]=2)[C:17]1=[O:30])[C:38]1[CH:43]=[CH:42][CH:41]=[CH:40][CH:39]=1
ParticipantsProcedureWorkupSources & evidenceReaction notes

Participants

6

Reactant 4

HCID 79724-MethylmorpholineHCID 682631,1'-CarbonyldiimidazoleHCID 102312Benzyloxyamine hydrochlorideHCID 197055493-(2-Methylpropyl)-2,5-dioxo-1-(2-phenylethyl)-3-pyrrolidineacetic Acid

Product 1

HCID 53945587N-Benzyloxy-3-(2-methylpropyl)-2,5-dioxo-1-(2-phenylethyl)-3-pyrrolidineacetamideYield 18%

Reagents, catalysts & solvents

1
HCID 6344DichloromethaneSolvent

Procedure

CDI (153 mg, 0.945 mmol) is added to a mixture of 3-(2-methylpropyl)-2,5-dioxo-1-(2-phenylethyl)-3-pyrrolidineacetic acid (300 mg, 0.945 mmol) and CH2Cl2 (7.5 mL) at room temperature. Afar stirring at room temperature for 1 hour, O-benzylhydroxylamine hydrochloride (181 mg, 1.13 mmol) and 4-methylmorpholine (124 μL, 1.13 mmol) are added to the solution. The mixture is allowed to stir overnight at room temperature. Basic workup (CH2Cl2, NaHCO3, MgSO4) and purification by column chromatography (1.5% MeOH/CHCl3) affordes 70 mg (18%) of the title compound as a white solid (mp 115°-117° C.).

Workup

  1. stirringto stir overnight at room temperature
  2. customBasic workup (CH2Cl2, NaHCO3, MgSO4) and purification by column chromatography (1.5% MeOH/CHCl3)

Sources & evidence

ORD record
ord-984f010ccd2f479cbf250f23379b9173
Source dataset
uspto-grants-1998_01
DOI
10.6084/m9.figshare.5104873.v1
Patent number
US05712300

Reaction notes

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On this pageParticipantsProcedureWorkupSources & evidenceReaction notes