Water → HCID 11998429, compound

HRID 1948400Notes

Reaction equation

HRID 1948400 reaction equation
[C:1]([NH:4][C:5]1[S:6][C:7]([C:11]2[S:15][C:14]([S:16](Cl)(=[O:18])=[O:17])=[CH:13][CH:12]=2)=[C:8]([CH3:10])[N:9]=1)(=[O:3])[CH3:2].[CH3:20][N:21]1[CH2:26][CH2:25][NH:24][CH2:23][CH2:22]1.CCN(C(C)C)C(C)C.O>C(Cl)Cl>[CH3:10][C:8]1[N:9]=[C:5]([NH:4][C:1](=[O:3])[CH3:2])[S:6][C:7]=1[C:11]1[S:15][C:14]([S:16]([N:24]2[CH2:25][CH2:26][N:21]([CH3:20])[CH2:22][CH2:23]2)(=[O:18])=[O:17])=[CH:13][CH:12]=1

Participants

6

Reactant 4

HCID 962WaterHCID 531671-MethylpiperazineHCID 81531DiisopropylethylamineHCID 866225625-[2-(Acetylamino)-4-methyl-1,3-thiazol-5-yl]thiophene-2-sulfonyl chloride

Product 1

HCID 11998429HCID 11998429, compound

Reagents, catalysts & solvents 1

HCID 6344DichloromethaneSolvent

Procedure

5-[2-(acetylamino)-4-methyl-1,3-thiazol-5-yl]thiophene-2-sulfonyl chloride, prepared as in Step II of Example 1 (280 mg; 0.84 mmol; 1 eq), is dissolved in DCM (10 ml). N-Methyl piperazine (8.4 ml; 8.4 mmol; 10 eq) and DIEA (0.17 ml; 0.98 mmol; 3 eq) are added. After four hours, water (1 ml) is added and the solvents are evaporated to dryness. The crude product is re-dissolved in DCM and washed with NH4Cl saturated solution, water and dried over MgSO4. After evaporation of the solvents, crude material is precipitated in a mixture of DCM and diethyl ether, affording after filtration, Compound (8) as a white solid (173 mg; 51%).

Workup

  1. customthe solvents are evaporated to dryness
  2. dissolutionThe crude product is re-dissolved in DCM
  3. washwashed with NH4Cl saturated solution, water
  4. dry with materialdried over MgSO4
  5. customAfter evaporation of the solvents, crude material
  6. customis precipitated in a mixture of DCM and diethyl ether
  7. customaffording
  8. filtrationafter filtration, Compound (8) as a white solid (173 mg; 51%)

Sources & evidence

ORD record
ord-dc19d3349283418eb37fdb02f21a547f
Source dataset
uspto-grants-2013_03
Patent number
US08399497B2

Reaction notes

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