Acetyl chloride → 1-(4-{2-[2-(2,4-Difluoro-phenyl)-2H-[1,2,4]triazol-3-yl]-4,5-dihydro-6-oxa-1-thia-10-aza-benzo[e]azulen-9-yl}-piperazin-1-yl)-ethanone

HRID 1190553Notes

Reaction equation

HRID 1190553 reaction equation
[F:1][C:2]1[CH:7]=[C:6]([F:8])[CH:5]=[CH:4][C:3]=1[N:9]1[C:13]([C:14]2[S:23][C:22]3[C:21]4[N:24]=[C:25]([N:28]5[CH2:33][CH2:32][NH:31][CH2:30][CH2:29]5)[CH:26]=[CH:27][C:20]=4[O:19][CH2:18][CH2:17][C:16]=3[CH:15]=2)=[N:12][CH:11]=[N:10]1.CCN(C(C)C)C(C)C.[C:43](Cl)(=[O:45])[CH3:44].C(Cl)Cl.CCOC(C)=O>C1COCC1>[F:1][C:2]1[CH:7]=[C:6]([F:8])[CH:5]=[CH:4][C:3]=1[N:9]1[C:13]([C:14]2[S:23][C:22]3[C:21]4[N:24]=[C:25]([N:28]5[CH2:29][CH2:30][N:31]([C:43](=[O:45])[CH3:44])[CH2:32][CH2:33]5)[CH:26]=[CH:27][C:20]=4[O:19][CH2:18][CH2:17][C:16]=3[CH:15]=2)=[N:12][CH:11]=[N:10]1

Participants

6

Reactant 4

HCID 6367Acetyl chlorideHCID 81531DiisopropylethylamineHCID 21226138Dichloromethane ethylacetateHCID 579005292-[2-(2,4-Difluoro-phenyl)-2H-[1,2,4]triazol-3-yl]-9-piperazin-1-yl-4,5-dihydro-6-oxa-1-thia-10-aza-benzo[e]azulene

Product 1

HCID 582039581-(4-{2-[2-(2,4-Difluoro-phenyl)-2H-[1,2,4]triazol-3-yl]-4,5-dihydro-6-oxa-1-thia-10-aza-benzo[e]azulen-9-yl}-piperazin-1-yl)-ethanoneYield 28%

Reagents, catalysts & solvents 1

HCID 8028TetrahydrofuranSolvent

Procedure

2-[2-(2,4-Difluoro-phenyl)-2H-[1,2,4]triazol-3-yl]-9-piperazin-1-yl-4,5-dihydro-6-oxa-1-thia-10-aza-benzo[e]azulene (150 mg, 0.3 mmol) was dissolved in THF (20 mL), and DIPEA (155 mg, 1.2 mmol) was added. Acetyl chloride (28 mg, 0.36 mmol) was added dropwise into the solution. And then the reaction mixture was stirred at room temperature for 12 h. The reaction mixture was concentrated in vacuo, and then dissolved in DCM. The mixture was washed by water, dried by Na2SO4, concentrated in vacuo, and purified by prep. TLC (DCM/EtOAc=10:1) to give 348 (42.6 mg, yield: 28%). 1HNMR (DMSO, 400 MHz): δ8.29 (s, 1H), 7.97-7.88 (m, 1H), 7.78 (t, J=2.4 Hz, 1H), 7.47 (t, J=8.4 Hz, 1H), 7.27-7.24 (m, 2H), 6.80 (d, J=8.8 Hz, 1H), 4.20 (s, 1H), 3.63 (s, 4H), 3.33 (s, 4H), 3.11 (s, 2H), 2.07 (s, 3H). ESI-MS: m/z=509 [M+H+]

Workup

  1. concentrationThe reaction mixture was concentrated in vacuo
  2. dissolutiondissolved in DCM
  3. washThe mixture was washed by water
  4. dry with materialdried by Na2SO4
  5. concentrationconcentrated in vacuo
  6. custompurified by prep

Sources & evidence

ORD record
ord-208f85b3279245ae80eecd90b8d67866
Source dataset
uspto-grants-2014_03
Patent number
US08673952B2

Reaction notes

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