2-(4-Fluorophenyl)acetyl isocyanate → 4-(Pyrrolidin-1-ylmethyl)piperidine-1-carboxylic acid [4-(4-{3-[2-(4-fluorophenyl)acetyl]ureido}phenoxy)pyridin-2-yl]amide

HRID 492995Notes

Reaction equation

HRID 492995 reaction equation
[NH2:1][C:2]1[CH:29]=[CH:28][C:5]([O:6][C:7]2[CH:12]=[CH:11][N:10]=[C:9]([NH:13][C:14]([N:16]3[CH2:21][CH2:20][CH:19]([CH2:22][N:23]4[CH2:27][CH2:26][CH2:25][CH2:24]4)[CH2:18][CH2:17]3)=[O:15])[CH:8]=2)=[CH:4][CH:3]=1.[F:30][C:31]1[CH:36]=[CH:35][C:34]([CH2:37][C:38]([N:40]=[C:41]=[O:42])=[O:39])=[CH:33][CH:32]=1>CN(C)C=O.C(OCC)(=O)C.CCCCCC>[F:30][C:31]1[CH:32]=[CH:33][C:34]([CH2:37][C:38]([NH:40][C:41](=[O:42])[NH:1][C:2]2[CH:29]=[CH:28][C:5]([O:6][C:7]3[CH:12]=[CH:11][N:10]=[C:9]([NH:13][C:14]([N:16]4[CH2:17][CH2:18][CH:19]([CH2:22][N:23]5[CH2:27][CH2:26][CH2:25][CH2:24]5)[CH2:20][CH2:21]4)=[O:15])[CH:8]=3)=[CH:4][CH:3]=2)=[O:39])=[CH:35][CH:36]=1

Participants

6

Reactant 2

HCID 231530882-(4-Fluorophenyl)acetyl isocyanateHCID 59596970N-[4-(4-aminophenoxy)-2-pyridinyl]-4-(1-pyrrolidinylmethyl)-1-piperidinecarboxamide

Product 1

HCID 576773834-(Pyrrolidin-1-ylmethyl)piperidine-1-carboxylic acid [4-(4-{3-[2-(4-fluorophenyl)acetyl]ureido}phenoxy)pyridin-2-yl]amideYield 63.1%

Reagents, catalysts & solvents 3

HCID 6228DimethylformamideSolventHCID 8058HexaneSolventHCID 8857Ethyl AcetateSolvent2×

Procedure

To a solution of 4-(pyrrolidin-1-ylmethyl)piperidine-1-carboxylic acid [4-(4-aminophenoxy)pyridin-2-yl]amide (50 mg) in N,N-dimethylformamide (1.5 ml) was added a solution of 0.25 M 2-(4-fluorophenyl)acetyl isocyanate in ethyl acetate (1.51 ml) under a nitrogen atmosphere, followed by stirring for 17 hrs. The reaction mixture was partitioned between ethyl acetate (100 ml) and a saturated aqueous solution of sodium hydrogencarbonate (50 ml). The organic layer was washed with a saturated aqueous solution of sodium hydrogencarbonate (50 ml), water (50 ml), brine (50 ml) and dried over anhydrous sodium sulfate. The solvent was evaporated to give a residue, which was then purified by silica gel column chromatography (Fuji Silysia NH, eluent; ethyl acetate). Fractions containing the target compound were concentrated to give a residue, which was then suspended in ethyl acetate (1.5 ml) and hexane (1.5 ml). The solid was filtered off and dried under aeration to provide the titled compound (45.7 mg, 63.1%) as white powder.

Workup

  1. customThe reaction mixture was partitioned between ethyl acetate (100 ml)
  2. washThe organic layer was washed with a saturated aqueous solution of sodium hydrogencarbonate (50 ml), water (50 ml), brine (50 ml)
  3. dry with materialdried over anhydrous sodium sulfate
  4. customThe solvent was evaporated
  5. customto give a residue, which
  6. customwas then purified by silica gel column chromatography (Fuji Silysia NH, eluent; ethyl acetate)
  7. additionFractions containing the target compound
  8. concentrationwere concentrated
  9. customto give a residue, which
  10. filtrationThe solid was filtered off
  11. customdried under aeration

Sources & evidence

ORD record
ord-af897397b6474938aed64568c8fd2460
Source dataset
uspto-grants-2009_05
Patent number
US07531532B2

Reaction notes

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