Hydrochloric Acid → 1-(3-chloro-2-methyl-phenyl)-3-[2-(2,6-dioxo-piperidin-3-yl)-1-oxo-2,3-dihydro-1H-isoindol-5-ylmethyl]-urea

HRID 63489

Reaction equation

HRID 63489 reaction equation
[NH2:1][CH2:2][C:3]1[CH:4]=[C:5]2[C:9](=[CH:10][CH:11]=1)[C:8](=[O:12])[N:7]([CH:13]1[CH2:18][CH2:17][C:16](=[O:19])[NH:15][C:14]1=[O:20])[CH2:6]2.[Cl:21][C:22]1[CH:27]=[CH:26][CH:25]=[C:24]([N:28]=[C:29]=[O:30])[C:23]=1[CH3:31].Cl>C(#N)C>[Cl:21][C:22]1[C:23]([CH3:31])=[C:24]([NH:28][C:29]([NH:1][CH2:2][C:3]2[CH:4]=[C:5]3[C:9](=[CH:10][CH:11]=2)[C:8](=[O:12])[N:7]([CH:13]2[CH2:18][CH2:17][C:16](=[O:19])[NH:15][C:14]2=[O:20])[CH2:6]3)=[O:30])[CH:25]=[CH:26][CH:27]=1

Participants

5

Reactant 3

HCID 313Hydrochloric AcidHCID 27357701-Chloro-3-isocyanato-2-methylbenzeneHCID 594432803-(5-(Aminomethyl)-1-oxoisoindolin-2-yl)piperidine-2,6-dione

Product 1

HCID 445387321-(3-chloro-2-methyl-phenyl)-3-[2-(2,6-dioxo-piperidin-3-yl)-1-oxo-2,3-dihydro-1H-isoindol-5-ylmethyl]-ureaYield 91%

Reagents, catalysts & solvents 1

HCID 6342AcetonitrileSolvent

Procedure

TEA (0.28 ml, 2 mmol) was added to a stirred mixture of 3-(5-aminomethyl-1-oxo-1,3-dihydro-isoindol-2-yl)-piperidine-2,6-dione (0.37 g, 1 mmol) and 1-chloro-3-isocyanato-2-methyl-benzene (0.13 ml, 1 mmol) in acetonitrile (10 mL) under nitrogen. The mixture was stirred at ambient temperature for 1 h, during which time it remained a suspension. The reaction was then monitored and determined to be complete. A 3.5% aqueous HCl solution (10 mL) was added, and the mixture stirred for 10 minutes. The solid was isolated by filtration, and the solid was washed with additional 3.5% aq. HCl (20 mL) and acetonitrile (20 mL), yielding 1-(3-chloro-2-methyl-phenyl)-3-[2-(2,6-dioxo-piperidin-3-yl)-1-oxo-2,3-dihydro-1H-isoindol-5-ylmethyl]-urea as a white solid (400 mg, 91%). HPLC: Waters Symmetry C-18, 3.9×150 mm, 5 micro, 1 mL/min, 240 nm, 40/60 CH3CN 0.1% H3PO4 in H2O: tR=3.23 min (97%); mp. 252-254° C. 1H NMR (DMSO-d6) δ 1.93-2.08 (m, 5H, CHH), 2.25 (s, 3H, CH3), 2.33-2.47 (m, 1H, CHH), 2.61-2.64 (m., 1H, CHH), 2.82-3.01 (m, 1H, CHH), 4.25-4.55 (m, 4H, CH2+CH2), 5.11 (dd, J=5.1, 13.2 Hz, 1H, NCH), 6.98-7.20 (m, 3H, Ar), 7.46 (d, J=7.9 Hz, 1H, Ar), 7.53 (s, 1H, NH), 7.67-7.83 (m, 2H, Ar), 8.02 (s, 1H, NH), 10.99 (s, 1H, NH); 13C NMR (DMSO-d6) δ 14.62, 22.49, 31.20, 42.90, 47.12, 51.58, 120.32, 121.96, 123.01, 125.74, 126.78, 126.95, 130.35, 133.39, 139.61, 142.42, 144.61, 155.31, 167.93, 170.99, 172.86. LCMS MH=441. Anal Calcd for: C22H21ClN4O3+0.05 HCl: C, 59.69; H, 4.79; N, 12.66; Cl, 8.41. found: C, 59.44; H, 4.57; N, 12.51; Cl, 8.43.

Workup

  1. stirringthe mixture stirred for 10 minutes
  2. customThe solid was isolated by filtration
  3. washthe solid was washed with additional 3.5% aq. HCl (20 mL) and acetonitrile (20 mL)

Sources & evidence

ORD record
ord-0daefbf4332e43cdaceb536aa5eaf8d7
Source dataset
uspto-grants-2016_09
Patent number
US09447070B2

Linked notes

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