3-Oxopiperazine-1-sulfonamide → N-[2-[[(2,3-Difluorophenyl)methyl]thio]-6-methoxypyrimidin-4-yl]-3-oxopiperazine-1-sulfonamide

HRID 1175450Notes

Reaction equation

HRID 1175450 reaction equation
[O:1]=[C:2]1[NH:7][CH2:6][CH2:5][N:4]([S:8]([NH2:11])(=[O:10])=[O:9])[CH2:3]1.Cl[C:13]1[CH:18]=[C:17]([O:19][CH3:20])[N:16]=[C:15]([S:21][CH2:22][C:23]2[CH:28]=[CH:27][CH:26]=[C:25]([F:29])[C:24]=2[F:30])[N:14]=1>CCOC(C)=O>[F:30][C:24]1[C:25]([F:29])=[CH:26][CH:27]=[CH:28][C:23]=1[CH2:22][S:21][C:15]1[N:14]=[C:13]([NH:11][S:8]([N:4]2[CH2:5][CH2:6][NH:7][C:2](=[O:1])[CH2:3]2)(=[O:10])=[O:9])[CH:18]=[C:17]([O:19][CH3:20])[N:16]=1

Participants

4

Reactant 2

HCID 431320453-Oxopiperazine-1-sulfonamideHCID 866198774-Chloro-2-([(2,3-difluorophenyl)methyl]thio]-6-methoxypyrimidine2×

Product 1

HCID 59558765N-[2-[[(2,3-Difluorophenyl)methyl]thio]-6-methoxypyrimidin-4-yl]-3-oxopiperazine-1-sulfonamide

Reagents, catalysts & solvents 1

HCID 8857Ethyl AcetateSolvent

Procedure

The title compound was prepared from 3-oxopiperazine-1-sulfonamide (the product of step i) (0.22 g) and 4-chloro-2-[[(2,3-difluorophenyl)methyl]thio]-6-methoxypyrimidine (the product of Example 35, step i) (0.25 g) according to the procedure outlined in Example 1, step iv). The crude material was purified by column chromatography using EtOAc/isohexane (1:1) as eluent to give a white solid. This solid was dissolved in EtOAc and Et2O and extracted with 1N sodium hydroxide. The basic solution was washed with Et2O, acidified with dilute hydrochloric acid and extracted with EtOAc. The organic solution was washed with H2O, dried (MgSO4) and the solvent evaporated in vacuo to give the product as a yellow foam.

Workup

  1. customThe crude material was purified by column chromatography
  2. customto give a white solid
  3. extractionEt2O and extracted with 1N sodium hydroxide
  4. washThe basic solution was washed with Et2O
  5. extractionextracted with EtOAc
  6. washThe organic solution was washed with H2O
  7. dry with materialdried (MgSO4)
  8. customthe solvent evaporated in vacuo

Sources & evidence

ORD record
ord-4a45153d6d3e44f1a0bc9643ff32343f
Source dataset
uspto-grants-2010_11
Patent number
US07838675B2

Reaction notes

Loading…