Dichloromethane → HCID 57526948, compound

HRID 1452670Notes

Reaction equation

HRID 1452670 reaction equation
[CH3:1][O:2][C:3]1[CH:8]=[CH:7][CH:6]=[CH:5][C:4]=1[CH2:9][CH2:10][CH2:11][CH2:12][C:13]([OH:15])=O.[C:16]([O:20][C:21]([N:23]1[CH2:28][CH2:27][CH:26]([C:29]2[CH:34]=[CH:33][C:32]([F:35])=[C:31]([NH2:36])[CH:30]=2)[CH2:25][CH2:24]1)=[O:22])([CH3:19])([CH3:18])[CH3:17].Cl.CN(C)CCCN=C=NCC.C(Cl)Cl>CN(C)C1C=CN=CC=1.CN(C=O)C.O>[F:35][C:32]1[CH:33]=[CH:34][C:29]([CH:26]2[CH2:27][CH2:28][N:23]([C:21]([O:20][C:16]([CH3:18])([CH3:17])[CH3:19])=[O:22])[CH2:24][CH2:25]2)=[CH:30][C:31]=1[NH:36][C:13](=[O:15])[CH2:12][CH2:11][CH2:10][CH2:9][C:4]1[CH:5]=[CH:6][CH:7]=[CH:8][C:3]=1[O:2][CH3:1]

Participants

8

Reactant 4

HCID 6344DichloromethaneHCID 27239391,3-Propanediamine, N'-(ethylcarbonimidoyl)-N,N-dimethyl-, monohydrochlorideHCID 25050817HCID 25050817, compoundHCID 57526939HCID 57526939, compound

Product 1

HCID 57526948HCID 57526948, compoundYield 50%

Reagents, catalysts & solvents 3

HCID 142844-(Dimethylamino)pyridineCatalystHCID 962WaterSolventHCID 6228DimethylformamideSolvent

Procedure

A 25-mL RB-flask was charged with 5-(2-methoxyphenyl)pentanoic acid (53.0 mg, 0.250 mmol), tert-butyl-4-(3-amino-4-fluorophenyl)-1-piperidinecarboxylate (59.0 mg, 0.200 mmol), 1-[3-(Dimethylamino)propyl]-3-ethylcarbodimide hydrochloride (0.400 mmol, 62.0 mg), 4-dimethylaminopyridine (10 mg) in DMF:DCM (0.2:2.0 mL) at room temperature. The reaction mixture was stirred for 12 h and water (10.0 mL) was added to the reaction mixture. The organic layer was separated and the aqueous layer was extracted with CHCl3 (3×10 mL) The combined organic extracts were washed with brine, dried over MgSO4, filtered and concentrated in vacuo. The crude residue was purified by chromatography (silica gel, hexanes:EtOAc 6:1) to afford tert-butyl 4-(4-fluoro-3-{[5-(2-methoxyphenyl)pentanoyl]amino}phenyl)-1-piperidinecarboxylate (48.4 mg, 50.0%): 1H NMR (400 MHz, CDCl3) δ 8.36-8.13 (m, 1H), 7.39 (s, 1H), 7.26-7.06 (m, 2H), 7.06-6.92 (m, 1H), 6.92-6.75 (m, 3H), 4.41-4.02 (m, 2H), 3.80 (s, 3H), 2.90-2.70 (m, 2H), 2.70-2.63 (m, 2H), 2.63-2.51 (m, 1H), 2.49-2.32 (m, 2H), 1.87-1.72 (m, 4H), 1.72-1.63 (m, 2H), 1.63-1.52 (m, 2H), 1.48 (s, 9H).

Workup

  1. customat room temperature
  2. customThe organic layer was separated
  3. extractionthe aqueous layer was extracted with CHCl3 (3×10 mL) The combined organic extracts
  4. washwere washed with brine
  5. dry with materialdried over MgSO4
  6. filtrationfiltered
  7. concentrationconcentrated in vacuo
  8. customThe crude residue was purified by chromatography (silica gel, hexanes:EtOAc 6:1)

Sources & evidence

ORD record
ord-e9d688b20d514fc38e2fe403789ef86a
Source dataset
uspto-grants-2009_01
Patent number
US07473698B2

Reaction notes

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