Cesium carbonate → N-[(1S,2S,4R)-1-Benzyl-4-(3,3-dimethylbutylcarbamoyl)-2-hydroxypentyl]-4-fluoro-3-(2-oxopyrrolidin-1-yl)-benzamide

HRID 1612474Notes

Reaction equation

HRID 1612474 reaction equation
[CH2:1]([C@H:8]([NH:23][C:24](=[O:33])[C:25]1[CH:30]=[CH:29][C:28]([F:31])=[C:27](Br)[CH:26]=1)[C@@H:9]([OH:22])[CH2:10][C@H:11]([C:13](=[O:21])[NH:14][CH2:15][CH2:16][C:17]([CH3:20])([CH3:19])[CH3:18])[CH3:12])[C:2]1[CH:7]=[CH:6][CH:5]=[CH:4][CH:3]=1.C(=O)([O-])[O-].[Cs+].[Cs+].[NH:40]1[CH2:44][CH2:43][CH2:42][C:41]1=[O:45].CC1(C)C2C=CC=C(P(C3C=CC=CC=3)C3C=CC=CC=3)C=2OC2C1=CC=CC=2P(C1C=CC=CC=1)C1C=CC=CC=1>C1C=CC(/C=C/C(/C=C/C2C=CC=CC=2)=O)=CC=1.C1C=CC(/C=C/C(/C=C/C2C=CC=CC=2)=O)=CC=1.C1C=CC(/C=C/C(/C=C/C2C=CC=CC=2)=O)=CC=1.[Pd].[Pd]>[CH2:1]([C@H:8]([NH:23][C:24](=[O:33])[C:25]1[CH:30]=[CH:29][C:28]([F:31])=[C:27]([N:40]2[CH2:44][CH2:43][CH2:42][C:41]2=[O:45])[CH:26]=1)[C@@H:9]([OH:22])[CH2:10][C@H:11]([C:13](=[O:21])[NH:14][CH2:15][CH2:16][C:17]([CH3:20])([CH3:19])[CH3:18])[CH3:12])[C:2]1[CH:7]=[CH:6][CH:5]=[CH:4][CH:3]=1

Participants

6

Reactant 4

HCID 10796Cesium carbonateHCID 120252-PyrrolidoneHCID 6360441,1'-(9,9-Dimethyl-9H-xanthene-4,5-diyl)bis(1,1-diphenylphosphine)HCID 69589710N-[(1S,2S,4R)-1-Benzyl-4-(3,3-dimethylbutylcarbamoyl)-2-hydroxypentyl]-3-bromo-4-fluorobenzamide

Product 1

HCID 10152661N-[(1S,2S,4R)-1-Benzyl-4-(3,3-dimethylbutylcarbamoyl)-2-hydroxypentyl]-4-fluoro-3-(2-oxopyrrolidin-1-yl)-benzamideYield 41.2%

Reagents, catalysts & solvents 1

HCID 9811564Bis(dibenzylideneacetone)palladiumCatalyst

Procedure

A mixture of N-[(1S,2S,4R)-1-benzyl-4-(3,3-dimethylbutylcarbamoyl)-2-hydroxypentyl]-3-bromo-4-fluoro-benzamide (126 mg, 0.24 mmol) (D3), caesium carbonate (117 mg, 0.36 mmol), 2-pyrrolidinone (1 ml of 0.36M solution in 1,4-dioxan, 0.36 mmol), 9,9-dimethyl-4,5-bis(diphenylphosphino)xanthene (1 ml of 0.015M solution in 1,4-dioxan) and tris(dibenzylideneacetone)dipalladium (0) (1 ml of 0.005M solution in 1,4-dioxan, 0.01 mmol of Pd) was refluxed under argon for 40 h. After cooling, the mixture was filtered and evaporated in vacuo. Column chromatography on silica gel (elution with dichloromethane/methanol) gave the title compound (52 mg) as a white solid.

Workup

  1. temperaturewas refluxed under argon for 40 h
  2. temperatureAfter cooling
  3. filtrationthe mixture was filtered
  4. customevaporated in vacuo

Sources & evidence

ORD record
ord-de210c36a7de466c80d69fe14af746bd
Source dataset
uspto-grants-2006_01
Patent number
US06992103B2

Reaction notes

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