Hydrochloric Acid → HCID 44538923, compound

HRID 63513Notes

Reaction equation

HRID 63513 reaction equation
CS(O)(=O)=O.[NH2:6][CH2:7][C:8]1[CH:9]=[C:10]2[C:14](=[CH:15][CH:16]=1)[C:13](=[O:17])[N:12]([CH:18]1[CH2:23][CH2:22][C:21](=[O:24])[NH:20][C:19]1=[O:25])[CH2:11]2.[CH2:26]([N:29]=[C:30]=[O:31])[CH2:27][CH3:28].C(N(CC)CC)C.Cl>C(#N)C>[O:25]=[C:19]1[CH:18]([N:12]2[CH2:11][C:10]3[C:14](=[CH:15][CH:16]=[C:8]([CH2:7][NH:6][C:30]([NH:29][CH2:26][CH2:27][CH3:28])=[O:31])[CH:9]=3)[C:13]2=[O:17])[CH2:23][CH2:22][C:21](=[O:24])[NH:20]1

Participants

6

Reactant 4

HCID 313Hydrochloric AcidHCID 8471TriethylamineHCID 61033Propyl isocyanateHCID 866307653-(5-(Aminomethyl)-1-oxoisoindolin-2-yl)piperidine-2,6-dione methanesulfonate

Product 1

HCID 44538923HCID 44538923, compoundYield 55.8%

Reagents, catalysts & solvents 1

HCID 6342AcetonitrileSolvent

Procedure

To a stirred mixture of 3-(5-aminomethyl-1-oxo-1,3-dihydro-isoindol-2-yl)-piperidine-2,6-dione methane sulfonate (0.37 g, 1.0 mmol) and propylisocyanate (0.09 mL, 1.0 mmol) in acetonitrile (10 mL), was added triethylamine (0.28 mL, 2.0 mmol) at room temperature under nitrogen. After 2 h, 1 N aq. HCl (15 mL) was added and the solids were isolated by filtration, washed with water (2×20 mL). The product was extracted with EtOAc (3×50 mL) and CH2Cl2 (3×50 mL). The organic layers were combined, concentrated and the residue was triturated in Et2O (20 mL). The product was isolated by filtration and dried in vacuo to give 1-[2-(2,6-dioxo-piperidin-3-yl)-1-oxo-2,3-dihydro-1H-isoindol-5-ylmethyl]-3-propyl-urea as a white solid (0.20 g, 53% yield): HPLC: Waters Symmetry C18, 5 μm, 3.9×150 mm, 1 mL/min, 240 nm, 10/90 to 90/10 CH3CN/0.1% H3PO4 gradient over 15 mins, 5.84 min (98.91%); mp: 250-252° C.; 1H NMR (DMSO-d6) δ 0.84 (t, J=7.4 Hz, 3H, CH3), 1.22-1.59 (m, 2H, CH2), 1.85-2.10 (m, 1H, CHH), 2.25-2.47 (m, 1H, CHH), 2.60 (d, J=17.4 Hz, 1H, CHH), 2.78-3.10 (m, 3H, CH2, CHH), 4.21-4.37 (m, 3H, CH2, CHH), 4.44 (d, J=17.4 Hz, 1H, CHH), 5.11 (dd, J=5.1, 13.2 Hz, 1H, CH), 5.99 (t, J=5.7 Hz, 1H, NH), 6.40 (t, J=5.9 Hz, 1H, NH), 7.38 (d, J=7.7 Hz, 1H, Ar), 7.45 (s, 1H, Ar), 7.67 (d, J=7.9 Hz, 1H, Ar), 10.98 (s, 1H, NH); 13C NMR (DMSO-d6) δ 11.32, 22.49, 23.19, 31.20, 41.18, 42.92, 47.09, 51.55, 121.73, 122.83, 126.78, 130.11, 142.29, 145.55, 158.02, 167.98, 171.01, 172.86; LCMS: MH=359; Anal Calcd for C18H22N4O4: C, 60.32; H, 6.19; N, 15.63. Found: C, 60.21; H, 6.15; N, 15.51.

Workup

  1. customthe solids were isolated by filtration
  2. washwashed with water (2×20 mL)
  3. extractionThe product was extracted with EtOAc (3×50 mL) and CH2Cl2 (3×50 mL)
  4. concentrationconcentrated
  5. customthe residue was triturated in Et2O (20 mL)
  6. customThe product was isolated by filtration
  7. customdried in vacuo

Sources & evidence

ORD record
ord-8d7a12acdcc04f3ab927f21a34c20643
Source dataset
uspto-grants-2016_09
Patent number
US09447070B2

Reaction notes

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