Sodium Bicarbonate → 4-(3-Dimethylaminoazetidin-1-yl)piperidine-1-carboxylic acid [4-(4-{3-[2-(4-fluorophenyl)acetyl]ureido}phenoxy)pyridin-2-yl]amide

HRID 492943Notes

Reaction equation

HRID 492943 reaction equation
[NH2:1][C:2]1[CH:30]=[CH:29][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]([N:22]4[CH2:25][CH:24]([N:26]([CH3:28])[CH3:27])[CH2:23]4)[CH2:18][CH2:17]3)=[O:15])[CH:8]=2)=[CH:4][CH:3]=1.[F:31][C:32]1[CH:37]=[CH:36][C:35]([CH2:38][C:39]([N:41]=[C:42]=[O:43])=[O:40])=[CH:34][CH:33]=1.C(=O)([O-])O.[Na+]>O1CCCC1.C(OCC)C.CCCCCC>[F:31][C:32]1[CH:33]=[CH:34][C:35]([CH2:38][C:39]([NH:41][C:42](=[O:43])[NH:1][C:2]2[CH:3]=[CH:4][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]([N:22]5[CH2:23][CH:24]([N:26]([CH3:28])[CH3:27])[CH2:25]5)[CH2:20][CH2:21]4)=[O:15])[CH:8]=3)=[CH:29][CH:30]=2)=[O:40])=[CH:36][CH:37]=1

Participants

7

Reactant 3

HCID 516892Sodium BicarbonateHCID 231530882-(4-Fluorophenyl)acetyl isocyanateHCID 576773374-(3-Dimethylaminoazetidin-1-yl)piperidine-1-carboxylic acid [4-(4-aminophenoxy)pyridin-2-yl]amide

Product 1

HCID 576776234-(3-Dimethylaminoazetidin-1-yl)piperidine-1-carboxylic acid [4-(4-{3-[2-(4-fluorophenyl)acetyl]ureido}phenoxy)pyridin-2-yl]amideYield 27%

Reagents, catalysts & solvents 3

HCID 3283Diethyl EtherSolventHCID 8028TetrahydrofuranSolvent2×HCID 8058HexaneSolvent

Procedure

To a solution of 4-(3-dimethylaminoazetidin-1-yl)piperidine-1-carboxylic acid [4-(4-aminophenoxy)pyridin-2-yl]amide (60 mg) in tetrahydrofuran (5.0 ml) was added a solution of 2-(4-fluorophenyl)acetyl isocyanate in tetrahydrofuran (0.25 M, 1.75 ml) at room temperature, followed by stirring at room temperature for 0.5 hr. To the reaction mixture was added a saturated aqueous solution of sodium hydrogencarbonate, followed by stirring at room temperature for 0.5 hr. The reaction mixture was extracted with ethyl acetate. The organic layer was washed with brine, and dried over anhydrous sodium sulfate. The organic layer was concentrated to give a residue, which was then purified by silica gel column chromatography (FUJI Silysia NH, eluent; ethyl acetate, then ethyl acetate:methanol=10:1). Fractions containing a target compound were concentrated to give a solid, which was suspended in diethyl ether (1 ml) and hexane (2 ml). The solid was filtered off, washed with diethyl ether:hexane=1:2, and dried under aeration to provide the titled compound (23.2 mg, 27%) as white powder.

Workup

  1. stirringby stirring at room temperature for 0.5 hr
  2. extractionThe reaction mixture was extracted with ethyl acetate
  3. washThe organic layer was washed with brine
  4. dry with materialdried over anhydrous sodium sulfate
  5. concentrationThe organic layer was concentrated
  6. customto give a residue, which
  7. customwas then purified by silica gel column chromatography (FUJI Silysia NH, eluent
  8. additionFractions containing a target compound
  9. concentrationwere concentrated
  10. customto give a solid, which
  11. filtrationThe solid was filtered off
  12. washwashed with diethyl ether
  13. dry with materialhexane=1:2, and dried under aeration

Sources & evidence

ORD record
ord-b621302d37e2418fab0905ed425b4753
Source dataset
uspto-grants-2009_05
Patent number
US07531532B2

Reaction notes

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