Triethylamine → Pyrimidine-5-carboxylic acid [2-(2,6-dioxopiperidin-3-YL)-1,3-dioxo-2,3-dihydro-1H-isoindol-4-ylmethyl]amide

HRID 448445

Reaction equation

HRID 448445 reaction equation
[N:1]1[CH:6]=[C:5]([C:7]([OH:9])=O)[CH:4]=[N:3][CH:2]=1.C1N=CN(C(N2C=NC=C2)=O)C=1.Cl.[NH2:23][CH2:24][C:25]1[CH:33]=[CH:32][CH:31]=[C:30]2[C:26]=1[C:27](=[O:43])[N:28]([CH:35]1[CH2:40][CH2:39][C:38](=[O:41])[NH:37][C:36]1=[O:42])[C:29]2=[O:34].C(N(CC)CC)C>CN(C=O)C>[O:42]=[C:36]1[CH:35]([N:28]2[C:27](=[O:43])[C:26]3[C:30](=[CH:31][CH:32]=[CH:33][C:25]=3[CH2:24][NH:23][C:7]([C:5]3[CH:4]=[N:3][CH:2]=[N:1][CH:6]=3)=[O:9])[C:29]2=[O:34])[CH2:40][CH2:39][C:38](=[O:41])[NH:37]1

Participants

6

Reactant 4

HCID 8471TriethylamineHCID 682631,1'-CarbonyldiimidazoleHCID 78346Pyrimidine-5-carboxylic acidHCID 219885254-(aminomethyl)-2-(2,6-dioxopiperidin-3-yl)-2,3-dihydro-1H-isoindole-1,3-dione hydrochloride

Product 1

HCID 58827293Pyrimidine-5-carboxylic acid [2-(2,6-dioxopiperidin-3-YL)-1,3-dioxo-2,3-dihydro-1H-isoindol-4-ylmethyl]amideYield 50%

Reagents, catalysts & solvents 1

HCID 6228DimethylformamideSolvent

Procedure

A mixture of pyrimidine-5-carboxylic acid (0.25 g, 2.0 mmol) and CDI (0.39 g, 2.4 mmol) in DMF (25 mL) was stirred at ambient temperature under nitrogen for 2 hours. 4-Aminomethyl-2-(2,6-dioxopiperidin-3-yl)isoindole-1,3-dione hydrochloride (0.65 g, 2.0 mmol) and triethylamine (0.61 g, 6.0 mmol) were added, and the mixture was allowed to stir for 16 hours. The solvent was evaporated under vacuum, and the residue was chromatographed using a methylene chloride-methanol gradient, eluting with 95:5 methylene chloride-methanol, providing 0.39 g of the product in 50% yield: mp>260° C.; 1H NMR (DMSO-d6) δ 2.05-2.10 (m, 1H), 2.53-2.65 (m, 2H), 2.83-2.91 (m, 1H), 4.98 (d, J=5.7 Hz, 2H), 5.18 (dd, J=12.4 Hz, d=5.4 Hz, 1H), 7.84 (s, 3H), 9.24 (s, 2H), 9.35 (s, 1H), 9.52 (t, J=5.7 Hz, 1H), 11.16 (s, 1H); 13C NMR (DMSO-d6) δ 22.0, 30.9, 38.3, 48.9, 122.1, 127.3, 127.5, 131.6, 133.4, 134.9, 138.4, 156.0, 160.1, 163.5, 167.0, 167.5, 169.8, 172.8; Anal. calcd for C19H15N5O5.0.3H2O: C, 57.23; H, 3.94; N, 17.56. Found: C, 57.27; H, 3.71; N, 17.27.

Workup

  1. stirringto stir for 16 hours
  2. customThe solvent was evaporated under vacuum
  3. customthe residue was chromatographed
  4. washeluting with 95:5 methylene chloride-methanol

Sources & evidence

ORD record
ord-322e6a7f88ef4543bd8bec7aae052c31
Source dataset
uspto-grants-2013_07
Patent number
US08481568B2

Linked notes

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