Cesium carbonate → N-[2-[(2,3-Difluorobenzyl)thio]-6-(2-hydroxyethoxy)pyrimidin-4-yl]-azetidine-1-sulfonamide

HRID 1175498Notes

Reaction equation

HRID 1175498 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+].Cl[C:50]1[N:55]=[C:54]([S:56][CH2:57][C:58]2[CH:63]=[CH:62][CH:61]=[C:60]([F:64])[C:59]=2[F:65])[N:53]=[C:52]([O:66][CH2:67][CH2:68][OH:69])[CH:51]=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]>[F:65][C:59]1[C:60]([F:64])=[CH:61][CH:62]=[CH:63][C:58]=1[CH2:57][S:56][C:54]1[N:55]=[C:50]([NH:8][S:5]([N:1]2[CH2:4][CH2:3][CH2:2]2)(=[O:7])=[O:6])[CH:51]=[C:52]([O:66][CH2:67][CH2:68][OH:69])[N:53]=1

Participants

7

Reactant 4

HCID 10796Cesium carbonateHCID 111557942-Dicyclohexylphosphino-2',4',6'-triisoprophylbiphenylHCID 450805661-AzetidinesulfonamideHCID 866198902-({6-Chloro-2-[(2,3-difluorobenzyl)thio]pyrimidin-4-yl)oxy}ethanol

Product 1

HCID 59558750N-[2-[(2,3-Difluorobenzyl)thio]-6-(2-hydroxyethoxy)pyrimidin-4-yl]-azetidine-1-sulfonamide

Reagents, catalysts & solvents 2

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

Conditions

Temperature
100 °C

Procedure

A mixture of azetidine-1-sulfonamide (0.33 g, prepared according to patent WO2004/011443), tris(dibenzylideneacetone)dipalladium (0) (50 mg), 2-dicyclohexylphosphino-2′,4′,6′-tri-isopropyl-1,1′-biphenyl (XPHOS) (50 mg), cesium carbonate (0.585 g) and 2-({6-chloro-2-[(2,3-difluorobenzyl)thio]pyrimidin-4-yl}oxy)ethanol ((the product from example 112 step ii), 0.400 g) in dioxane (20 ml) was heated at reflux in a microwave at 100° C., 300 W, open vessel with cooling for 30 mins. The reaction mixture was then reduced in vacuo and the residue separated between DCM (150 ml) and H2O (150 ml). The organics were separated and the aqueous layer was re-extracted with DCM (2×150 ml). Organics were combined, dried (MgSO4) and reduced in vacuo and the resulting residue purified by prep HPLC to give the title compound as a white solid. Yield: 0.13 g

Workup

  1. temperaturewas heated
  2. temperature300 W, open vessel with cooling for 30 mins
  3. customthe residue separated between DCM (150 ml) and H2O (150 ml)
  4. customThe organics were separated
  5. extractionthe aqueous layer was re-extracted with DCM (2×150 ml)
  6. dry with materialdried (MgSO4)
  7. customthe resulting residue purified by prep HPLC

Sources & evidence

ORD record
ord-39a2e408f10d4dbea7f543319f0bf87a
Source dataset
uspto-grants-2010_11
Patent number
US07838675B2

Reaction notes

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