Morpholine → HCID 178527304, compound

HRID 2239996Notes

Reaction equation

HRID 2239996 reaction equation
[C:1]1([S:7]([C:10]2[C:18]3[C:13](=[CH:14][CH:15]=[C:16]([O:19][CH2:20][CH2:21]OS(C4C=CC(C)=CC=4)(=O)=O)[CH:17]=3)[NH:12][N:11]=2)(=[O:9])=[O:8])[CH:6]=[CH:5][CH:4]=[CH:3][CH:2]=1.[NH:33]1[CH2:38][CH2:37][O:36][CH2:35][CH2:34]1>C1COCC1>[C:1]1([S:7]([C:10]2[C:18]3[C:13](=[CH:14][CH:15]=[C:16]([O:19][CH2:20][CH2:21][N:33]4[CH2:38][CH2:37][O:36][CH2:35][CH2:34]4)[CH:17]=3)[NH:12][N:11]=2)(=[O:9])=[O:8])[CH:2]=[CH:3][CH:4]=[CH:5][CH:6]=1

Participants

4

Reactant 2

HCID 8083MorpholineHCID 178427774HCID 178427774, compound

Product 1

HCID 178527304HCID 178527304, compoundYield 15.1%

Reagents, catalysts & solvents 1

HCID 8028TetrahydrofuranSolvent

Procedure

A solution of toluene-4-sulfonic acid 2-(3-benzenesulfonyl-1H-indazol-5-yloxy)-ethyl ester (0.359 g, 0.760 mmol) and morpholine (1.0 mL, 11 mmol) in THF (8 mL) was stirred at 70° C. for 6 hours in a sealed tube. After cooling somewhat, the reaction mixture was solvent evaporated and partitioned in ethyl acetate and aqueous sodium bicarbonate. The organic phase was then washed with water and brine, dried with anhydrous magnesium sulfate, filtered and concentrated. The residue was purified by flash chromatography using 5% methanol in chloroform. After drying in vacuo at 57° C. for 20 minutes, 3-benzenesulfonyl-5-(2-morpholin-4-yl-ethoxy)-1H-indazole as an off-white foam (0.0443 g, 15.1%) was obtained. This was dissolved in methanol and chloroform, and ethereal hydrochloride was added. The mixture was concentrated and dried in vacuo at 75° C. for 16.5 hours to yield the hydrochloride as a light orange foam (0.0411 g). Mass Spectrum (+EI, [M+H]+) m/z 388. 1HNMR (300 MHz, DMSO-d6): δ14.31 (s, 1H), 10.82-88 (br, 1H), 8.03-8.07 (m, 2H), 7.62-7.76 (m, 4H), 7.49 (d, 1H, J=2.10 Hz), 7.26 (dd, 1H, J=9.14 Hz and 2.28 Hz), 4.54 (s, 2H), 4.02 (d, 2H, J=11.71 Hz), 3.80-3.87 (m, 2H), 3.51-3.73 (m, 4H), 3.19-3.31 ppm (m, 2H).

Workup

  1. temperatureAfter cooling somewhat
  2. customevaporated
  3. custompartitioned in ethyl acetate
  4. washThe organic phase was then washed with water and brine
  5. dry with materialdried with anhydrous magnesium sulfate
  6. filtrationfiltered
  7. concentrationconcentrated
  8. customThe residue was purified by flash chromatography
  9. customAfter drying in vacuo at 57° C. for 20 minutes

Sources & evidence

ORD record
ord-089531f7d4cd4fec881c3dcb685576e6
Source dataset
uspto-grants-2010_05
Patent number
US07723329B2

Reaction notes

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