Hydrochloric Acid → HCID 58204555, compound

HRID 886298Notes

Reaction equation

HRID 886298 reaction equation
[CH:1]([N:4]1[C:8]([C:9]2[N:18]=[C:17]3[N:11]([CH2:12][CH2:13][O:14][C:15]4[CH:22]=[C:21]([CH:23]5[CH2:28][CH2:27][N:26]([CH2:29][CH2:30][O:31]C6CCCCO6)[CH2:25][CH2:24]5)[CH:20]=[CH:19][C:16]=43)[CH:10]=2)=[N:7][CH:6]=[N:5]1)([CH3:3])[CH3:2].Cl>CO.O1CCOCC1>[CH:1]([N:4]1[C:8]([C:9]2[N:18]=[C:17]3[C:16]4[CH:19]=[CH:20][C:21]([CH:23]5[CH2:24][CH2:25][N:26]([CH2:29][CH2:30][OH:31])[CH2:27][CH2:28]5)=[CH:22][C:15]=4[O:14][CH2:13][CH2:12][N:11]3[CH:10]=2)=[N:7][CH:6]=[N:5]1)([CH3:3])[CH3:2]

Participants

5

Reactant 2

HCID 313Hydrochloric AcidHCID 58204683HCID 58204683, compound

Product 1

HCID 58204555HCID 58204555, compoundYield 30.5%

Reagents, catalysts & solvents 2

HCID 887MethanolSolventHCID 312751,4-DioxaneSolvent

Procedure

A solution of 2-(2-isopropyl-2H-[1,2,4]triazol-3-yl)-8-{1-[2-(tetrahydro-pyran-2-yloxy)-ethyl]-piperidin-4-yl}-4,5-dihydro-6-oxa-1,3a-diaza-benzo[e]azulene (371 mg, 0.73 mmol) in methanol (3.5 mL) was treated with 4N HCl in dioxane (3.5 mL) and the mixture stirred for 45 min before being concentrated in vacuo. The resultant residue was re subjected to the reaction conditions as before and stirred for 1 h at RT before being concentrated in vacuo. The resultant residue was partitioned between DCM/saturated aqueous sodium hydrogen carbonate, the aqueous extracted twice with DCM and the combined organic extracts washed with brine and then dried (Na2SO4), filtered and concentrated in vacuo. The resultant residue was subjected to flash chromatography (SiO2, column preconditioned with 1% TEA in DCM, gradient 0 to 7% methanol in DCM) to give 293 as a yellow foam (94 mg, 30%). LCMS: RT=2.61 min, [M+H]+=423. 1H NMR 400 MHz (DMSO-d) δ: 8.32 (1H, d, J=8.28 Hz), 7.89 (2H, d, J=1.96 Hz), 7.05 (1H, dd, J=8.31, 1.76 Hz), 6.89 (1H, d, J=1.71 Hz), 5.88-5.87 (1H, m), 4.49 (4H, q, J=5.91 Hz), 3.53 (2H, t, J=7.21 Hz), 3.03 (2H, d, J=11.27 Hz), 2.52 (3H, m), 2.16 (2H, t, J=11.38 Hz), 1.76 (2H, d, J=12.61 Hz), 1.67 (2H, d, J=12.75 Hz), 1.47 (6H, d, J=6.60 Hz)

Workup

  1. concentrationbefore being concentrated in vacuo
  2. customThe resultant residue was re subjected to the reaction conditions as before and
  3. stirringstirred for 1 h at RT
  4. concentrationbefore being concentrated in vacuo
  5. customThe resultant residue was partitioned between DCM/saturated aqueous sodium hydrogen carbonate
  6. extractionthe aqueous extracted twice with DCM
  7. washthe combined organic extracts washed with brine
  8. dry with materialdried (Na2SO4)
  9. filtrationfiltered
  10. concentrationconcentrated in vacuo

Sources & evidence

ORD record
ord-363e6c969a044480a12561a1db069db5
Source dataset
uspto-grants-2012_08
Patent number
US08242104B2

Reaction notes

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