Cesium carbonate → HCID 136347181, compound

HRID 601315Notes

Reaction equation

HRID 601315 reaction equation
[OH:1][C:2]1[C:11]2[C:6](=[CH:7][CH:8]=[CH:9][CH:10]=2)[N:5]([NH:12][CH2:13][CH2:14][CH:15]([CH3:17])[CH3:16])[C:4](=[O:18])[C:3]=1[C:19]1[NH:24][C:23]2[CH:25]=[CH:26][C:27]([OH:29])=[CH:28][C:22]=2[S:21](=[O:31])(=[O:30])[N:20]=1.C(=O)([O-])[O-].[Cs+].[Cs+].Br[CH2:39][C:40]([NH2:42])=[O:41]>[I-].C([N+](CCCC)(CCCC)CCCC)CCC.CN(C)C=O>[OH:1][C:2]1[C:11]2[C:6](=[CH:7][CH:8]=[CH:9][CH:10]=2)[N:5]([NH:12][CH2:13][CH2:14][CH:15]([CH3:17])[CH3:16])[C:4](=[O:18])[C:3]=1[C:19]1[NH:24][C:23]2[CH:25]=[CH:26][C:27]([O:29][CH2:39][C:40]([NH2:42])=[O:41])=[CH:28][C:22]=2[S:21](=[O:30])(=[O:31])[N:20]=1

Participants

6

Reactant 3

HCID 10796Cesium carbonateHCID 696322-BromoacetamideHCID 136374246HCID 136374246, compound

Product 1

HCID 136347181HCID 136347181, compoundYield 72%

Reagents, catalysts & solvents 2

HCID 67553Tetrabutylammonium IodideCatalystHCID 6228DimethylformamideSolvent

Conditions

Temperature
165 °C

Procedure

The product of Example 323C (0.025 g, 0.057 mmol) was reacted with cesium carbonate (0.055 g, 0.17 mmol), 2-bromoacetamide (0.012 g, 0.087 mmol) and a catalytic amount of tetrabuylammonium iodide in N,N-dimethylformamide (3 mL) at 25° C. for 2 hours. The reaction was concentrated to half the volume under a stream of nitrogen warmed through a manifold heated to 165° C. The resulting solution was diluted with water and the precipitate was collected by filtration and dried to give the title compound (0.020 g, 72%). MS (ESI−) m/z 498 (M−H)−. The sodium salt of the title compound was prepared according to the procedure of Example 1D. 1H NMR (300 MHz, DMSO-d6) δ ppm 0.90 (m, 3H) 1.33 (m, 6 H) 1.54 (m, 2 H) 4.49 (s, 2 H) 5.90 (m, 1 H) 7.06 (m, 1 H) 7.21 (m, 2 H) 7.40 (m, 1 H) 7.55 (m, 2 H) 8.07 (dd, J=8.27, 1.29 Hz, 1 H) 16.23 (s, 1 H).

Workup

  1. concentrationThe reaction was concentrated to half the volume under a stream of nitrogen
  2. temperaturewarmed through a manifold
  3. additionThe resulting solution was diluted with water
  4. filtrationthe precipitate was collected by filtration
  5. customdried

Sources & evidence

ORD record
ord-d26181d212514b4c8eb7f014aab8b0c6
Source dataset
uspto-grants-2011_03
Patent number
US07902203B2

Reaction notes

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