Cyclopropanecarbonyl chloride → N-{[2-(2,6-dioxo(3-piperidyl))-1-oxoisoindolin-4-yl]methyl}cyclopropylcarboxamide

HRID 906820Notes

Reaction equation

HRID 906820 reaction equation
N12CCCN=C1CCCCC2.Cl.[NH2:13][CH2:14][C:15]1[CH:23]=[CH:22][CH:21]=[C:20]2[C:16]=1[CH2:17][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].[CH:33]1([C:36](Cl)=[O:37])[CH2:35][CH2:34]1>C(#N)C>[O:32]=[C:26]1[CH:25]([N:18]2[CH2:17][C:16]3[C:20](=[CH:21][CH:22]=[CH:23][C:15]=3[CH2:14][NH:13][C:36]([CH:33]3[CH2:35][CH2:34]3)=[O:37])[C:19]2=[O:24])[CH2:30][CH2:29][C:28](=[O:31])[NH:27]1

Participants

5

Reactant 3

HCID 77637Cyclopropanecarbonyl chlorideHCID 811841,8-Diazabicyclo(5.4.0)undec-7-eneHCID 219885683-(4-(Aminomethyl)-1-oxoisoindolin-2-yl)piperidine-2,6-dione hydrochloride

Product 1

HCID 21988521N-{[2-(2,6-dioxo(3-piperidyl))-1-oxoisoindolin-4-yl]methyl}cyclopropylcarboxamideYield 50.2%

Reagents, catalysts & solvents 1

HCID 6342AcetonitrileSolvent

Procedure

1,8-Diazabicyclo[5,4,0]undec-7-ene (0.7 g, 4.62 mmol) was added to a stirred suspension of 3-[4-(aminomethyl)-1-oxoisoindolin-2-yl]piperidine-2,6-dione hydrochloride (0.65 g, 2.10 mmol) in acetonitrile (50 mL). After stirring for 30 min, cyclopropanecarbonyl chloride (0.24 g, 2.31 mmol) was added. The mixture was stirred at room temperature for 17 hours. The mixture was filtered and the solid was recrystallized from methanol (100 mL) to afford N-{[2-(2,6-dioxo(3-piperidyl))-1-oxoisoindolin-4-yl]methyl}cyclopropylcarboxamide (0.36 g, 50%) as a white solid: mp 262-264° C.; 1H NMR (DMSO-d6) δ 11.02 (s, 1H), 8.63 (t, J=5.7 Hz, 1H), 7.65-7.47 (m, 3H), 5.18-5.11 (dd, J=5.0 and 13.2 Hz, 1H), 4.46 (d, J=17.3 Hz, 1H), 4.38-4.31 (m, 3H), 3.00-2.85 (m, 1H), 2.65-2.30 (m, 2H), 2.04-1.99 (m, 1H), 1.64-1.54 (m, 1H), 0.69-0.65 (m, 4H); 13C NMR (DMSO-d6) δ 172.82, 172.69, 170.96, 168.03, 140.08, 134.76, 131.66, 130.70, 128.30, 121.64, 51.54, 46.15, 31.16, 22.59, 13.47, 6.27; Anal. Calcd. For C18H19N3O4: C, 63.33; H, 5.61; N, 12.31. Found: C, 62.97; H, 5.55; N, 12.33.

Workup

  1. stirringThe mixture was stirred at room temperature for 17 hours
  2. filtrationThe mixture was filtered
  3. customthe solid was recrystallized from methanol (100 mL)

Sources & evidence

ORD record
ord-c7b87b7d83c84862a8e7d1bdc5c13732
Source dataset
uspto-grants-2011_09
Patent number
US08012997B2

Reaction notes

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