Cesium carbonate → 4-{2-[(4-Benzyloxycarbonyl methoxy-7-methyl-quinoline-2-carbonyl)-amino]-acetyl}-piperazine-1-carboxylic acid butyl ester

HRID 1185490Notes

Reaction equation

HRID 1185490 reaction equation
[CH2:1]([O:5][C:6]([N:8]1[CH2:13][CH2:12][N:11]([C:14](=[O:31])[CH2:15][NH:16][C:17]([C:19]2[CH:28]=[C:27](O)[C:26]3[C:21](=[CH:22][C:23]([CH3:30])=[CH:24][CH:25]=3)[N:20]=2)=[O:18])[CH2:10][CH2:9]1)=[O:7])[CH2:2][CH2:3][CH3:4].[C:32](=O)([O-])[O-:33].[Cs+].[Cs+].[CH2:38]([O:45][C:46](=[O:49])CBr)[C:39]1[CH:44]=[CH:43][CH:42]=[CH:41][CH:40]=1>CN(C=O)C.O>[CH2:1]([O:5][C:6]([N:8]1[CH2:13][CH2:12][N:11]([C:14](=[O:31])[CH2:15][NH:16][C:17]([C:19]2[C:28]([O:33][CH3:32])=[C:27]([C:46]([O:45][CH2:38][C:39]3[CH:44]=[CH:43][CH:42]=[CH:41][CH:40]=3)=[O:49])[C:26]3[C:21](=[CH:22][C:23]([CH3:30])=[CH:24][CH:25]=3)[N:20]=2)=[O:18])[CH2:10][CH2:9]1)=[O:7])[CH2:2][CH2:3][CH3:4]

Participants

6

Reactant 3

HCID 10796Cesium carbonateHCID 62576Benzyl bromoacetateHCID 178452377HCID 178452377, compound

Product 1

HCID 686001674-{2-[(4-Benzyloxycarbonyl methoxy-7-methyl-quinoline-2-carbonyl)-amino]-acetyl}-piperazine-1-carboxylic acid butyl ester

Reagents, catalysts & solvents 2

HCID 962WaterSolventHCID 6228DimethylformamideSolvent

Procedure

To a solution of 4.5 g 4-{2-[(4-Hydroxy-7-methyl-quinoline-2-carbonyl)-amino]-acetyl}-piperazine-1-carboxylic acid butyl ester in 30 ml of DMF, 3.7 g of cesium carbonate and 2.6 g of Bromo-acetic acid benzyl ester were added and the reaction mixture was stirred for 16 h at RT. Then, the reaction mixture was diluted with water and extracted with ethyl acetate. The organic phase was dried over MgSO4 and the solvents were removed under reduced pressure. The isolated crude product was purified by re-crystallising from ethyl acetate/heptane. Yield: 5 g.

Workup

  1. extractionextracted with ethyl acetate
  2. dry with materialThe organic phase was dried over MgSO4
  3. customthe solvents were removed under reduced pressure
  4. customThe isolated crude product
  5. customwas purified
  6. customby re-crystallising from ethyl acetate/heptane

Sources & evidence

ORD record
ord-7878b00750664dac8080ab4b0ace3352
Source dataset
uspto-grants-2014_03
Patent number
US08669266B2

Reaction notes

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