Cesium carbonate → 4-[[[2-[[(2,3-Difluorophenyl)methyl]thio]-6-ethoxy-4-pyrimidinyl]amino]sulfonyl]-1-piperazinecarboxylic acid-1,1-dimethylethyl ester

HRID 1958914Notes

Reaction equation

HRID 1958914 reaction equation
[CH3:1][C:2]([O:5][C:6]([N:8]1[CH2:13][CH2:12][N:11]([S:14]([NH2:17])(=[O:16])=[O:15])[CH2:10][CH2:9]1)=[O:7])([CH3:4])[CH3:3].C1(P(C2CCCCC2)C2C=CC=CC=2C2C(C(C)C)=CC(C(C)C)=CC=2C(C)C)CCCCC1.C(=O)([O-])[O-].[Cs+].[Cs+].Cl[C:59]1[CH:64]=[C:63]([O:65][CH2:66][CH3:67])[N:62]=[C:61]([S:68][CH2:69][C:70]2[CH:75]=[CH:74][CH:73]=[C:72]([F:76])[C:71]=2[F:77])[N:60]=1>O1CCOCC1.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]>[CH3:4][C:2]([O:5][C:6]([N:8]1[CH2:13][CH2:12][N:11]([S:14]([NH:17][C:59]2[CH:64]=[C:63]([O:65][CH2:66][CH3:67])[N:62]=[C:61]([S:68][CH2:69][C:70]3[CH:75]=[CH:74][CH:73]=[C:72]([F:76])[C:71]=3[F:77])[N:60]=2)(=[O:16])=[O:15])[CH2:10][CH2:9]1)=[O:7])([CH3:1])[CH3:3]

Participants

7

Reactant 4

HCID 10796Cesium carbonateHCID 111557942-Dicyclohexylphosphino-2',4',6'-triisoprophylbiphenylHCID 53628347tert-Butyl 4-sulfamoylpiperazine-1-carboxylateHCID 866198724-Chloro-2-[[(2,3-difluorophenyl)methyl]thio)-6-ethoxy-pyrimidine2×

Product 1

HCID 536283464-[[[2-[[(2,3-Difluorophenyl)methyl]thio]-6-ethoxy-4-pyrimidinyl]amino]sulfonyl]-1-piperazinecarboxylic acid-1,1-dimethylethyl ester

Reagents, catalysts & solvents 2

HCID 9811564Bis(dibenzylideneacetone)palladiumCatalystHCID 312751,4-DioxaneSolvent

Procedure

The subtitle compound was prepared according to the procedure outlined in example 1 step (iv) using a mixture of 4-(aminosulfonyl)-1-piperazinecarboxylic acid-1,1-dimethylethyl ester (the product from step i) (0.29 g), tris(dibenzylideneacetone)dipalladium (0) (67 mg), 2-dicyclohexylphosphino-2′,4′,6′-tri-isopropyl-1,1′-biphenyl (XPHOS) (35 mg), cesium carbonate (0.36 g) and 4-chloro-2-[[(2,3-difluorophenyl)methyl]thio]-6-ethoxy-pyrimidine (the product from example 14, step i) (0.23 g) in dioxane (5 mL). Purification was by column chromatography on silica using EtOAc/isohexane (1:9 to 1:3 gradient) as eluent to give the subtitle compound as a yellow oil. Yield: 0.25 g

Workup

  1. customThe subtitle compound was prepared
  2. customPurification

Sources & evidence

ORD record
ord-260f2a9854d44fcba33ad6d8d3422112
Source dataset
uspto-grants-2013_04
Patent number
US08410123B2

Reaction notes

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