Phenylacetyl chloride → N-{[2-(2,6-dioxo(3-piperidyl))-1,3-dioxoisoindolin-4-yl]methyl}-2-phenylacetamide

HRID 906767

Reaction equation

HRID 906767 reaction equation
N12CCCN=C1CCCCC2.Cl.[NH2:13][CH2:14][C:15]1[CH:23]=[CH:22][CH:21]=[C:20]2[C:16]=1[C:17](=[O:33])[N:18]([CH:25]1[CH2:30][CH2:29][C:28](=[O:31])[NH:27][C:26]1=[O:32])[C:19]2=[O:24].[C:34]1([CH2:40][C:41](Cl)=[O:42])[CH:39]=[CH:38][CH:37]=[CH:36][CH:35]=1>CC#N>[O:32]=[C:26]1[CH:25]([N:18]2[C:17](=[O:33])[C:16]3[C:20](=[CH:21][CH:22]=[CH:23][C:15]=3[CH2:14][NH:13][C:41](=[O:42])[CH2:40][C:34]3[CH:39]=[CH:38][CH:37]=[CH:36][CH:35]=3)[C:19]2=[O:24])[CH2:30][CH2:29][C:28](=[O:31])[NH:27]1

Participants

5

Reactant 3

HCID 7679Phenylacetyl chlorideHCID 811841,8-Diazabicyclo(5.4.0)undec-7-eneHCID 219885254-(aminomethyl)-2-(2,6-dioxopiperidin-3-yl)-2,3-dihydro-1H-isoindole-1,3-dione hydrochloride

Product 1

HCID 10272622N-{[2-(2,6-dioxo(3-piperidyl))-1,3-dioxoisoindolin-4-yl]methyl}-2-phenylacetamideYield 55%

Reagents, catalysts & solvents 1

HCID 6342AcetonitrileSolvent

Procedure

1,8-Diazabicyclo[5,4,0]undec-7-ene (0.65 g, 4.26 mmol) was added to a stirred suspension of 4-(aminomethyl)-2-(2,6-dioxo(3-piperidyl))isoindoline-1,3-dione hydrochloride (0.60 g, 1.85 mmol) in CH3CN (50 mL). After stirring for 20 min, phenylacetyl chloride (0.35 g, 2.22 mmol) was added. The mixture was stirred at room temperature for 17 hours. The solvent was removed in vacuo and the residue was dissolved in CH2Cl2 (70 mL). The CH2Cl2 solution was washed with 1N HCl (30 mL), H2O (30 mL), brine (30 mL) and dried (MgSO4). The solvent was removed in vacuo and the residue was purified by chromatography (SiO2, CH2Cl2: EtOAc 6:4) to give N-{[2-(2,6-dioxo(3-piperidyl))-1,3-dioxoisoindolin-4-yl]methyl}-2-phenylacetamide (0.41 g, 55%) as a white solid: mp 128-130° C.; 1H NMR (DMSO-d6) δ 11.14 (s, 1H), 8.67 (t, J=5.5 Hz, 1H), 7.80-7.61 (m, 3H), 7.29 (s, 5H), 5.19-5.12 (dd, J=5.1 and 12.4 Hz, 1H), 4.71 (d, J=5.5 Hz, 2H), 3.53 (s, 2H), 2.96-2.83 (m, 1H), 2.63-2.50 (m, 2H), 2.08-2.03 (m, 1H); 13HNMR (DMSO-d6) δ 172.77, 170.65, 169.82, 167.45, 166.93, 139.19, 136.15, 134.68, 133.18, 131.53, 129.05, 128.25, 127.13, 126.43, 121.90, 48.85, 42.24, 37.85, 30.93, 21.98; Anal. Calcd. For C22H19N3O5: C, 65.18; H, 4.72; N, 10.36. Found: C, 65.16; H, 4.75; N, 10.11.

Workup

  1. stirringThe mixture was stirred at room temperature for 17 hours
  2. customThe solvent was removed in vacuo
  3. dissolutionthe residue was dissolved in CH2Cl2 (70 mL)
  4. washThe CH2Cl2 solution was washed with 1N HCl (30 mL), H2O (30 mL), brine (30 mL)
  5. dry with materialdried (MgSO4)
  6. customThe solvent was removed in vacuo
  7. customthe residue was purified by chromatography (SiO2, CH2Cl2: EtOAc 6:4)

Sources & evidence

ORD record
ord-a00f3a71594e421cbf7192aa5857ba0d
Source dataset
uspto-grants-2011_09
Patent number
US08012997B2

Linked notes

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