Hydrochloric Acid → HCID 57917295, compound

HRID 69266Notes

Reaction equation

HRID 69266 reaction equation
[F:1][C:2]1[CH:11]=[C:10]2[C:5]([CH:6]=[CH:7][CH:8]=[N:9]2)=[CH:4][C:3]=1[CH:12]([C:14]1[N:18]2[N:19]=[C:20]([C:23]3[CH:24]=[N:25][N:26]([CH2:28][CH2:29][O:30]C4CCCCO4)[CH:27]=3)[CH:21]=[CH:22][C:17]2=[N:16][CH:15]=1)[CH3:13].Cl>C(Cl)Cl.O1CCOCC1>[F:1][C:2]1[CH:11]=[C:10]2[C:5]([CH:6]=[CH:7][CH:8]=[N:9]2)=[CH:4][C:3]=1[CH:12]([C:14]1[N:18]2[N:19]=[C:20]([C:23]3[CH:24]=[N:25][N:26]([CH2:28][CH2:29][OH:30])[CH:27]=3)[CH:21]=[CH:22][C:17]2=[N:16][CH:15]=1)[CH3:13]

Participants

5

Reactant 2

HCID 313Hydrochloric AcidHCID 68639506(Rac)-7-fluoro-6-[1-(6-{1-[2-(tetrahydro-pyran-2-yloxy)-ethyl]-1h-pyrazol-4-yl}-imidazo[1,2-b]pyridazin-3-yl)-ethyl]-quinoline

Product 1

HCID 57917295HCID 57917295, compound

Reagents, catalysts & solvents 2

HCID 6344DichloromethaneSolventHCID 312751,4-DioxaneSolvent

Procedure

To a solution of (rac)-7-fluoro-6-[1-(6-{1-[2-(tetrahydro-pyran-2-yloxy)-ethyl]-1H-pyrazol-4-yl}-imidazo[1,2-b]pyridazin-3-yl)-ethyl]-quinoline (Stage 255.1, 49 mg, 0.101 mmol) in DCM (3 mL) stirred at rt was added a solution of HCl in dioxane (4 M, 0.252 mL). The RM was stirred 1 h at rt, during this time the product precipitated as an oil. The residue was taken in DCM and water, then neutralized with a solution of 10% NaHCO3 and extracted with DCM. The combined organic phase was dried over MgSO4 and concentrated under reduced pressure. The residue was purified by flash chromatography (CombiFlash® Companion System®, with RediSep® silica gel column, EtOAc/MeOH (1% NH3)=100:0->80:20) to afford the title compound as a white crystalline powder (tR 3.40 min (conditions 3), MH+=403.3, 1H-NMR in DMSO-d6: 8.81 (d, 1H), 8.35-8.28 (m, 2H); 8.05 (d, 1H); 7.95-7.88 (m, 2H), 7.76 (d, 1H); 7.72 (s, 1H); 7.49 (d, 1H); 7.46-7.40 (m, 1H); 5.03 (q, 1H); 4.92 (t, 1H); 4.15 (t, 2H); 3.72 (q, 2H); 2.83 (d, 3H)).

Workup

  1. customprecipitated as an oil
  2. extractionextracted with DCM
  3. dry with materialThe combined organic phase was dried over MgSO4
  4. concentrationconcentrated under reduced pressure
  5. customThe residue was purified by flash chromatography (CombiFlash® Companion System®, with RediSep® silica gel column, EtOAc/MeOH (1% NH3)=100:0->80:20)

Sources & evidence

ORD record
ord-a673924a7c5f49b68b6f95decd7fae48
Source dataset
uspto-grants-2014_09
Patent number
US08822468B2

Reaction notes

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