3,4-Dichlorophenylacetic acid → HCID 58827247, compound

HRID 448465Notes

Reaction equation

HRID 448465 reaction equation
Cl.[NH2:2][CH2:3][C:4]1[CH:12]=[CH:11][CH:10]=[C:9]2[C:5]=1[C:6](=[O:22])[N:7]([CH:14]1[CH2:19][CH2:18][C:17](=[O:20])[NH:16][C:15]1=[O:21])[C:8]2=[O:13].N12CCCN=C1CCCCC2.[Cl:34][C:35]1[CH:36]=[C:37]([CH2:42][C:43](O)=[O:44])[CH:38]=[CH:39][C:40]=1[Cl:41].Cl.CN(C)CCCN=C=NCC>CC#N>[Cl:34][C:35]1[CH:36]=[C:37]([CH2:42][C:43]([NH:2][CH2:3][C:4]2[CH:12]=[CH:11][CH:10]=[C:9]3[C:5]=2[C:6](=[O:22])[N:7]([CH:14]2[CH2:19][CH2:18][C:17](=[O:20])[NH:16][C:15]2=[O:21])[C:8]3=[O:13])=[O:44])[CH:38]=[CH:39][C:40]=1[Cl:41]

Participants

6

Reactant 4

HCID 798743,4-Dichlorophenylacetic acidHCID 811841,8-Diazabicyclo(5.4.0)undec-7-eneHCID 27239391,3-Propanediamine, N'-(ethylcarbonimidoyl)-N,N-dimethyl-, monohydrochlorideHCID 219885254-(aminomethyl)-2-(2,6-dioxopiperidin-3-yl)-2,3-dihydro-1H-isoindole-1,3-dione hydrochloride

Product 1

HCID 58827247HCID 58827247, compoundYield 67%

Reagents, catalysts & solvents 1

HCID 6342AcetonitrileSolvent

Procedure

To a stirred suspension of 4-aminomethyl-2-(2,6-dioxo-piperidin-3-yl)-isoindole-1,3-dione hydrochloride (0.7 g, 2.2 mmol) in CH3CN (60 ml), was added 1,8-diazabicyclo[5.4.0]undec-7-ene (0.8 g, 5.4 mmol). After stirring for 10 minutes, 1-hydroxybenzenetriazole (0.35 g, 2.6 mmol) and 3,4-dichlorophenylacetic acid (0.49 g, 2.4 mmol) were added. The mixture was then added 1-(3-dimethylaminopropyl)-3-ethylcarbodiimide hydrochloride (0.62 g, 3.2 mmol) and stirred overnight at room temperature. The reaction mixture was concentrated in vacuo, and the residue was dissolved in CH2Cl2 (50 mL). The CH2Cl2 solution was washed with water (2×30 mL) and brine (30 mL), and dried over MgSO4. Solvent was removed in vacuo. The resulting oil solidified on standing and the mixture was stirred in acetone (10 mL) then in MeOH (10 mL). The resulting solid was filtered and dried in vacuum oven to afford 2-(3,4-dichloro-phenyl)-N-[2-(2,6-dioxo-piperidin-3-yl)-1,3-dioxo-2,3-dihydro-1H-isoindol-4-ylmethyl]-acetamide as an off-white solid (0.69 g, 67%): mp, 163-165° C.; HPLC: Waters Symmetry C-18, 3.9×150 mm, 5 micro, 1 mL/min, 240 nm, 40/60 (CH3CN/H2O): tR=6.5 min. (98%); 1H NMR (DMSO-d6): δ 2.03-2.08 (m, 1H), 2.52-2.63 (m, 2H), 2.84-2.92 (m, 1H), 3.58 (s, 2H), 4.73 (d, J=6.0 Hz, 2H), 5.12-5.18 (dd, J=5, 12 Hz, 1H), 7.26-7.82 (m, 6H), 8.69 (t, J=6 Hz, 1H), 11.14 (s, 1H). 13C NMR (DMSO-d6) δ: 21.95, 30.90, 37.92, 40.80, 48.83, 121.95, 127.16, 129.13, 129.58, 130.29, 130.65, 131.15, 131.52, 133.31, 134.68, 137.19, 138.92, 166.88, 167.39, 169.77, 172.72. Anal Calcd for C22H17Cl2N3O5+0.2H2O: C, 55.29; H, 3.67; N, 8.79; Cl, 14.84. Found: C, 55.19; H, 3.33; N, 8.83; Cl, 14.71.

Workup

  1. concentrationThe reaction mixture was concentrated in vacuo
  2. dissolutionthe residue was dissolved in CH2Cl2 (50 mL)
  3. washThe CH2Cl2 solution was washed with water (2×30 mL) and brine (30 mL)
  4. dry with materialdried over MgSO4
  5. customSolvent was removed in vacuo
  6. stirringthe mixture was stirred in acetone (10 mL)
  7. filtrationThe resulting solid was filtered
  8. customdried in vacuum oven

Sources & evidence

ORD record
ord-4363c84b0fae456e8190fbc5cd42ba85
Source dataset
uspto-grants-2013_07
Patent number
US08481568B2

Reaction notes

Loading…