Lawesson's reagent → 4-thioxo-1-(4-{(1S,5R)-1-[4-(trifluoromethyl)phenyl]-3-azabicyclo[3.1.0]hex-3-yl}butyl)-3,4-dihydro-2(1H)-pyrimidinone hydrochloride

HRID 12782Notes

Reaction equation

HRID 12782 reaction equation
[ClH:1].[F:2][C:3]([F:29])([F:28])[C:4]1[CH:9]=[CH:8][C:7]([C@:10]23[CH2:15][C@H:14]2[CH2:13][N:12]([CH2:16][CH2:17][CH2:18][CH2:19][N:20]2[CH:25]=[CH:24][C:23](=O)[NH:22][C:21]2=[O:27])[CH2:11]3)=[CH:6][CH:5]=1.COC1C=CC(P2(SP(C3C=CC(OC)=CC=3)(=S)S2)=[S:39])=CC=1>COCCOC>[ClH:1].[S:39]=[C:23]1[CH:24]=[CH:25][N:20]([CH2:19][CH2:18][CH2:17][CH2:16][N:12]2[CH2:13][C@H:14]3[C@:10]([C:7]4[CH:8]=[CH:9][C:4]([C:3]([F:29])([F:28])[F:2])=[CH:5][CH:6]=4)([CH2:15]3)[CH2:11]2)[C:21](=[O:27])[NH:22]1

Participants

4

Reactant 2

HCID 87949Lawesson's reagentHCID 686914601-(4-{(1S,5R)-1-[4-(trifluoromethyl)phenyl]-3-azabicyclo[3.1.0]hex-3-yl}butyl)-2,4(1H,3H)-pyrimidinedione hydrochloride

Product 1

HCID 866159544-thioxo-1-(4-{(1S,5R)-1-[4-(trifluoromethyl)phenyl]-3-azabicyclo[3.1.0]hex-3-yl}butyl)-3,4-dihydro-2(1H)-pyrimidinone hydrochlorideYield 63%

Reagents, catalysts & solvents 1

HCID 80711,2-DimethoxyethaneSolvent

Procedure

A solution of 1-(4-{(1S,5R)-1-[4-(trifluoromethyl)phenyl]-3-azabicyclo[3.1.0]hex-3-yl}butyl)-2,4(1H,3H)-pyrimidinedione (E5, 110 mg, 0.3 mmol) and Lawesson's reagent (184 mg, 0.5 mmol) in DME (2 mL) was stirred at reflux for 2 hours. The solvent was evaporated under vacuum. The crude was re-dissolved in ethyl acetate and washed with water. The organic phase was dried (Na2SO4) filtered and evaporated; the crude was purified by flash chromatography with DCM-MeOH—NH4OH (98-2-0.2) to give the title compound as a yellow oil (80 mg, 63% yield).

Workup

  1. temperatureat reflux for 2 hours
  2. customThe solvent was evaporated under vacuum
  3. dissolutionThe crude was re-dissolved in ethyl acetate
  4. washwashed with water
  5. dry with materialThe organic phase was dried (Na2SO4)
  6. filtrationfiltered
  7. customevaporated
  8. customthe crude was purified by flash chromatography with DCM-MeOH—NH4OH (98-2-0.2)

Sources & evidence

ORD record
ord-fb66b91e750f4f81a06e92bdd42c658d
Source dataset
uspto-grants-2010_06
Patent number
US07727988B2

Reaction notes

Loading…