Pyrrolidine → HCID 57955804, compound

HRID 553235Notes

Reaction equation

HRID 553235 reaction equation
[C:1]([C:9]1[CH:25]=[CH:24][C:12]2[N:13]=[C:14]([C:16]3[CH:17]=[C:18]([C:21](O)=[O:22])[NH:19][CH:20]=3)[NH:15][C:11]=2[CH:10]=1)(=[O:8])[C:2]1[CH:7]=[CH:6][CH:5]=[CH:4][CH:3]=1.[NH:26]1[CH2:30][CH2:29][CH2:28][CH2:27]1.Cl.C(N=C=NCCCN(C)C)C.O.ON1C2C=CC=CC=2N=N1>CN(C)C=O.N1C=CC=CC=1.O>[C:1]([C:9]1[CH:25]=[CH:24][C:12]2[N:13]=[C:14]([C:16]3[CH:17]=[C:18]([C:21]([N:26]4[CH2:30][CH2:29][CH2:28][CH2:27]4)=[O:22])[NH:19][CH:20]=3)[NH:15][C:11]=2[CH:10]=1)(=[O:8])[C:2]1[CH:3]=[CH:4][CH:5]=[CH:6][CH:7]=1

Participants

8

Reactant 4

HCID 31268PyrrolidineHCID 27239391,3-Propanediamine, N'-(ethylcarbonimidoyl)-N,N-dimethyl-, monohydrochlorideHCID 27960291-Hydroxybenzotriazole hydrateHCID 579557884-(6-Benzoyl-1H-benzimidazol-2-yl)-1H-pyrrole-2-carboxylic acid

Product 1

HCID 57955804HCID 57955804, compoundYield 78.2%

Reagents, catalysts & solvents 3

HCID 962WaterSolventHCID 1049PyridineSolventHCID 6228DimethylformamideSolvent

Conditions

Temperature
80 °C

Procedure

The 4-(5-benzoylbenzimidazol-2-yl)-pyrrole-2-carboxylic acid (130 mg) obtained in Example 5 was dissolved in N,N-dimethylformamide (2 ml) and pyridine (2 ml). Pyrrolidine (56 mg), 1-ethyl-3-(3-dimethylaminopropyl)carbodiimide hydrochloride (112 mg), and 1-hydroxybenzotriazole monohydrate (80 mg) were added and stirred overnight at 80° C. After the starting material was disappeared, the reaction mixture was allowed to cool to room temperature, and then added dropwise to water. The precipitate was collected by filtration, and dried in vacuo to afford ((4-(5-benzoylbenzimidazol-2-yl)-pyrrol-2-yl)-carbonyl)pyrrolidine (118 mg, 78%) as a red solid.

Workup

  1. temperatureto cool to room temperature
  2. filtrationThe precipitate was collected by filtration
  3. customdried in vacuo

Sources & evidence

ORD record
ord-10fc7d3a6d6c42a9b9f4ab9a8f9ebf33
Source dataset
uspto-grants-2011_05
Patent number
US07951956B2

Reaction notes

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