3-Chlorophenylacetic acid → HCID 58827291, compound

HRID 448466Notes

Reaction equation

HRID 448466 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]([CH2:41][C:42](O)=[O:43])[CH:38]=[CH:39][CH:40]=1.Cl.CN(C)CCCN=C=NCC>CC#N>[Cl:34][C:35]1[CH:36]=[C:37]([CH2:41][C:42]([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:43])[CH:38]=[CH:39][CH:40]=1

Participants

6

Reactant 4

HCID 158793-Chlorophenylacetic 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 58827291HCID 58827291, compoundYield 76%

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-chloro-phenylacetic acid (0.41 g, 2.4 mmol) were added. The reaction was then added 1-(3-dimethylaminopropyl)-3-ethylcarbodiimide hydrochloride (0.62 g, 3.2 mmol) and was stirred at room temperature overnight. The reaction mixture was then 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, and the resulting oil was purified by ISCO silica gel flash chromatography (eluent: 30% EtOAc in CH2Cl2 for 10 min, then increase to 60% EtOAc in CH2Cl2 over 20 min) to afford 2-(3-chloro-phenyl)-N-[2-(2,6-dioxo-piperidin-3-yl)-1,3-dioxo-2,3-dihydro-1H-isoindol-4-ylmethyl]-acetamide as a white solid (0.73 g, 76%): mp, 185-187° C.; HPLC: Waters Symmetry C-18, 3.9×150 mm, 5 micro, 1 mL/min, 240 nm, 40/60 (CH3CN/H2O): tR=4.2 min. (99%); 1H NMR (DMSO-d6): δ 2.03-2.08 (m, 1H), 2.52-2.63 (m, 2H), 2.86-2.91 (m, 1H), 3.56 (s, 2H), 4.73 (d, J=6.0 Hz, 2H), 5.12-5.18 (dd, J=5, 13 Hz, 1H), 7.23-7.82 (m, 7H), 8.70 (t, J=6 Hz, 1H), 11.13 (s, 1H). 13C NMR (DMSO-d6) δ: 21.95, 30.90, 37.87, 41.53, 48.83, 121.93, 126.40, 127.15, 127.82, 128.94, 130.04, 131.52, 132.74, 133.25, 134.66, 138.54, 139.01, 166.88, 167.41, 169.77, 170.03, 172.73. Anal Calcd for C22H18ClN3O5: C, 60.08; H, 4.12; N, 9.55; Cl, 8.06. Found: C, 59.92; H, 3.85; N, 9.55; Cl, 8.37.

Workup

  1. concentrationThe reaction mixture was then 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. customthe resulting oil was purified by ISCO silica gel flash chromatography (eluent
  7. wait30% EtOAc in CH2Cl2 for 10 min
  8. temperatureincrease to 60% EtOAc in CH2Cl2 over 20 min)

Sources & evidence

ORD record
ord-9ec5ccf4dff440789a36e7765b8fadaa
Source dataset
uspto-grants-2013_07
Patent number
US08481568B2

Reaction notes

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