Phenylacetyl chloride → Pyrrolidine-1-carboxylic acid {4-[2-methyl-4-(3-phenylacetylthioureido)phenoxy]pyridin-2-yl}amide

HRID 492787Notes

Reaction equation

HRID 492787 reaction equation
[C:1]1([CH2:7][C:8](Cl)=[O:9])[CH:6]=[CH:5][CH:4]=[CH:3][CH:2]=1.[S-:11][C:12]#[N:13].[K+].[NH2:15][C:16]1[CH:36]=[CH:35][C:19]([O:20][C:21]2[CH:26]=[CH:25][N:24]=[C:23]([NH:27][C:28]([N:30]3[CH2:34][CH2:33][CH2:32][CH2:31]3)=[O:29])[CH:22]=2)=[C:18]([CH3:37])[CH:17]=1>C(#N)C.C(OCC)C>[CH3:37][C:18]1[CH:17]=[C:16]([NH:15][C:12]([NH:13][C:8](=[O:9])[CH2:7][C:1]2[CH:6]=[CH:5][CH:4]=[CH:3][CH:2]=2)=[S:11])[CH:36]=[CH:35][C:19]=1[O:20][C:21]1[CH:26]=[CH:25][N:24]=[C:23]([NH:27][C:28]([N:30]2[CH2:34][CH2:33][CH2:32][CH2:31]2)=[O:29])[CH:22]=1

Participants

6

Reactant 3

HCID 7679Phenylacetyl chlorideHCID 516872Potassium thiocyanateHCID 57677322Pyrrolidine-1-carboxylic acid [4-(4-amino-2-methylphenoxy)pyridin-2-yl]amide

Product 1

HCID 57677434Pyrrolidine-1-carboxylic acid {4-[2-methyl-4-(3-phenylacetylthioureido)phenoxy]pyridin-2-yl}amideYield 41%

Reagents, catalysts & solvents 2

HCID 3283Diethyl EtherSolventHCID 6342AcetonitrileSolvent

Conditions

Temperature
50 °C

Procedure

To a solution of 2-phenylacetyl chloride (0.0549 ml) in acetonitrile (5.0 ml) was added potassium thiocyanate (37.3 mg, 0.384 mmol), followed by stirring under a nitrogen atmosphere at 50° C. for 1 hr. The reaction mixture was cooled down to room temperature, and then pyrrolidine-1-carboxylic acid [4-(4-amino-2-methylphenoxy)pyridin-2-yl]amide (80 mg) was added thereto, followed by stirring under a nitrogen atmosphere for 21 hrs. The reaction mixture was partitioned between ethyl acetate (100 ml) and water (40 ml). The organic layer was washed with brine, and dried over anhydrous sodium sulfate. The solvent was evaporated to give a residue, which was then purified by silica gel column chromatography (eluent; ethyl acetate). Fractions containing the target compound were concentrated to give a solid, which was suspended in diethyl ether (4 ml). The solid was filtered off, and dried under aeration to provide the titled compound (51 mg, 41%) as colorless powder.

Workup

  1. temperatureThe reaction mixture was cooled down to room temperature
  2. stirringby stirring under a nitrogen atmosphere for 21 hrs
  3. customThe reaction mixture was partitioned between ethyl acetate (100 ml) and water (40 ml)
  4. washThe organic layer was washed with brine
  5. dry with materialdried over anhydrous sodium sulfate
  6. customThe solvent was evaporated
  7. customto give a residue, which
  8. customwas then purified by silica gel column chromatography (eluent; ethyl acetate)
  9. additionFractions containing the target compound
  10. concentrationwere concentrated
  11. customto give a solid, which
  12. filtrationThe solid was filtered off
  13. customdried under aeration

Sources & evidence

ORD record
ord-787e6be1d5c64d22b674b350b006b9d9
Source dataset
uspto-grants-2009_05
Patent number
US07531532B2

Reaction notes

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