N-bromobutanimide → HCID 59733103, compound

HRID 131977Notes

Reaction equation

HRID 131977 reaction equation
[CH2:1]([O:3][C:4](=[O:29])[CH2:5][C:6]1[N:7]=[C:8]([NH:11][C:12]([NH:14][C:15]2[CH:20]=[CH:19][C:18]([CH3:21])=[CH:17][C:16]=2[C:22]([CH:24]2[CH2:28][CH2:27][CH2:26][CH2:25]2)=[O:23])=[O:13])[S:9][CH:10]=1)[CH3:2].[Br:30]N1C(=O)CCC1=O>C(#N)C.C(Cl)Cl>[CH2:1]([O:3][C:4](=[O:29])[CH2:5][C:6]1[N:7]=[C:8]([NH:11][C:12]([NH:14][C:15]2[CH:20]=[CH:19][C:18]([CH3:21])=[CH:17][C:16]=2[C:22]([CH:24]2[CH2:28][CH2:27][CH2:26][CH2:25]2)=[O:23])=[O:13])[S:9][C:10]=1[Br:30])[CH3:2]

Participants

5

Reactant 2

HCID 67184N-bromobutanimideHCID 59732991HCID 59732991, compound

Product 1

HCID 59733103HCID 59733103, compoundYield 21.9%

Reagents, catalysts & solvents 2

HCID 6342AcetonitrileSolventHCID 6344DichloromethaneSolvent

Procedure

To a solution of {2-[3-(2-cyclopentanecarbonyl-4-methyl-phenyl)-ureido]-thiazol-4-yl}-acetic acid ethyl ester (0.05 g, 0.12 mmol) in 2 ml of acetonitrile was added N-bromosuccinimide (0.024 g, 0.13 mmol). The reaction mixture was stirred under nitrogen in a pressure bottle excluded from light overnight at 25° C. The mixture was diluted with 15 ml of DCM, washed (1N HCl, saturated NaHCO3, water), dried (MgSO4) and concentrated under reduced pressure. The crude product was purified by preparative HPLC to afford the title compound (0.013 g, 21%).

Workup

  1. washwashed (1N HCl, saturated NaHCO3, water)
  2. dry with materialdried (MgSO4)
  3. concentrationconcentrated under reduced pressure
  4. customThe crude product was purified by preparative HPLC

Sources & evidence

ORD record
ord-c80eb3c5bb55497baef2eb80beebca31
Source dataset
uspto-grants-2008_06
Patent number
US07384967B2

Reaction notes

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