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Tetrahydrofuran → 2-Methyl-2-(4-{2-[2-(2,2,2-trifluoro-ethyl)-2H-[1,2,4]triazol-3-yl]-4,5-dihydro-6-oxa-3-thia-1-aza-benzo[e]azulen-8-yl}-pyrazol-1-yl)-propan-1-ol

HRID 1190531
Notes
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Reaction equation

HRID 1190531 reaction equation
[CH3:1][C:2]([N:7]1[CH:11]=[C:10]([C:12]2[CH:35]=[CH:34][C:15]3[C:16]4[N:17]=[C:18]([C:24]5[N:25]([CH2:29][C:30]([F:33])([F:32])[F:31])[N:26]=[CH:27][N:28]=5)[S:19][C:20]=4[CH2:21][CH2:22][O:23][C:14]=3[CH:13]=2)[CH:9]=[N:8]1)([CH3:6])[C:3](O)=[O:4].O1CCCC1.[AlH4-].[Li+]>>[CH3:6][C:2]([N:7]1[CH:11]=[C:10]([C:12]2[CH:35]=[CH:34][C:15]3[C:16]4[N:17]=[C:18]([C:24]5[N:25]([CH2:29][C:30]([F:31])([F:33])[F:32])[N:26]=[CH:27][N:28]=5)[S:19][C:20]=4[CH2:21][CH2:22][O:23][C:14]=3[CH:13]=2)[CH:9]=[N:8]1)([CH3:1])[CH2:3][OH:4]
ParticipantsProcedureWorkupSources & evidenceReaction notes

Participants

4

Reactant 3

HCID 8028TetrahydrofuranHCID 28112Lithium aluminum hydrideHCID 670506022-Methyl-2-(4-{2-[2-(2,2,2-trifluoro-ethyl)-2H-[1,2,4]triazol-3-yl]-4,5-dihydro-6-oxa-3-thia-1-aza-benzo[e]azulen-8-yl}-pyrazol-1-yl)-propionic acid

Product 1

HCID 582041702-Methyl-2-(4-{2-[2-(2,2,2-trifluoro-ethyl)-2H-[1,2,4]triazol-3-yl]-4,5-dihydro-6-oxa-3-thia-1-aza-benzo[e]azulen-8-yl}-pyrazol-1-yl)-propan-1-olYield 14.6%

Procedure

2-Methyl-2-(4-{2-[2-(2,2,2-trifluoro-ethyl)-2H-[1,2,4]triazol-3-yl]-4,5-dihydro-6-oxa-3-thia-1-aza-benzo[e]azulen-8-yl}-pyrazol-1-yl)-propionic acid (0.250 g, 0.000496 mol) in dry tetrahydrofuran (1.0 mL, 0.012 mol) cooled to 0° C. Lithium tetrahydroaluminate (1M solution in THF, 1.0 mL, 0.0010 mol), was added dropwise at 0° C. and the mixture was allowed to warm to room temperature and stirred for 2 h. The reaction was quenched with saturated Na2SO4 until no more hydrogen evolution was observed. MgSO4 was added and the solution was filtered and rinsed with copious amounts of methylene chloride. The solvent was removed in vacuo and the crude material was purified by reverse-phase HPLC to give 332 (35.4 mg) as a colorless solid. MS (ESI+) 491.1.

Workup

  1. customThe reaction was quenched with saturated Na2SO4 until no more hydrogen evolution
  2. additionMgSO4 was added
  3. filtrationthe solution was filtered
  4. washrinsed with copious amounts of methylene chloride
  5. customThe solvent was removed in vacuo
  6. customthe crude material was purified by reverse-phase HPLC

Sources & evidence

ORD record
ord-4057bedff4364afe8c47686572e7b09f
Source dataset
uspto-grants-2014_03
DOI
10.6084/m9.figshare.5104873.v1
Patent number
US08673952B2

Reaction notes

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On this pageParticipantsProcedureWorkupSources & evidenceReaction notes