Cesium carbonate → 2-[[6-[(1-azetidinylsulfonyl)amino]-2-[[(2,3-difluorophenyl)methyl]thio]-4-pyrimidinyl]oxy]-(2S)-propanoic acid ethyl ester

HRID 1024873Notes

Reaction equation

HRID 1024873 reaction equation
[N:1]1([S:5]([NH2:8])(=[O:7])=[O:6])[CH2:4][CH2:3][CH2:2]1.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+].[CH2:49]([O:51][C:52](=[O:73])[C@@H:53]([O:55][C:56]1[CH:61]=[C:60](Cl)[N:59]=[C:58]([S:63][CH2:64][C:65]2[CH:70]=[CH:69][CH:68]=[C:67]([F:71])[C:66]=2[F:72])[N:57]=1)[CH3:54])[CH3:50]>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].O1CCOCC1>[CH2:49]([O:51][C:52](=[O:73])[C@@H:53]([O:55][C:56]1[CH:61]=[C:60]([NH:8][S:5]([N:1]2[CH2:4][CH2:3][CH2:2]2)(=[O:7])=[O:6])[N:59]=[C:58]([S:63][CH2:64][C:65]2[CH:70]=[CH:69][CH:68]=[C:67]([F:71])[C:66]=2[F:72])[N:57]=1)[CH3:54])[CH3:50]

Participants

7

Reactant 4

HCID 10796Cesium carbonateHCID 111557942-Dicyclohexylphosphino-2',4',6'-triisoprophylbiphenylHCID 450805661-AzetidinesulfonamideHCID 866198752-[[6-chloro-2-[[(2,3-difluorophenyl)methyl]thio]-4-pyrimidinyl]oxy]-(2S)-propanoic acid ethyl ester2×

Product 1

HCID 670512112-[[6-[(1-azetidinylsulfonyl)amino]-2-[[(2,3-difluorophenyl)methyl]thio]-4-pyrimidinyl]oxy]-(2S)-propanoic acid ethyl 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 azetidine-1-sulfonamide (prepared according to patent WO 2004/011443, 0.13 g), tris(dibenzylideneacetone)dipalladium (0) (58 mg), 2-dicyclohexylphosphino-2′,4′,6′-tri-isopropyl-1,1′-biphenyl (XPHOS) (42 mg), cesium carbonate (0.31 g), 2-[[6-chloro-2-[[(2,3-difluorophenyl)methyl]thio]-4-pyrimidinyl]oxy]-(2S)-propanoic acid ethyl ester (product of step i) (0.25 g) and dioxane (10 mL). Purification was by column chromatography on silica gel using EtOAc/isohexane (3:7) as eluent to give the subtitle compound as clear, colourless oil. Yield: 0.28 g

Workup

  1. customThe subtitle compound was prepared
  2. customPurification

Sources & evidence

ORD record
ord-de70f074fc1648638041f3b40fd60e8e
Source dataset
uspto-grants-2014_05
Patent number
US08722883B2

Reaction notes

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