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Triethylamine → 6-Fluoro-3-(4-triisopropylsilanyloxyethyl-piperidin-1-yl)-[1,2,4]triazolo[4,3-a]pyridin

HRID 2285047
Notes
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Reaction equation

HRID 2285047 reaction equation
[F:1][C:2]1[CH:3]=[CH:4][C:5]2[N:6]([C:8]([N:11]3[CH2:16][CH2:15][CH:14]([CH:17](O)[CH3:18])[CH2:13][CH2:12]3)=[N:9][N:10]=2)[CH:7]=1.CCN(CC)CC.[CH:27]([Si:30]([O:37]S(C(F)(F)F)(=O)=O)([CH:34]([CH3:36])[CH3:35])[CH:31]([CH3:33])[CH3:32])([CH3:29])[CH3:28]>C(Cl)Cl>[F:1][C:2]1[CH:3]=[CH:4][C:5]2[N:6]([C:8]([N:11]3[CH2:16][CH2:15][CH:14]([CH2:17][CH2:18][O:37][Si:30]([CH:31]([CH3:33])[CH3:32])([CH:34]([CH3:36])[CH3:35])[CH:27]([CH3:28])[CH3:29])[CH2:13][CH2:12]3)=[N:9][N:10]=2)[CH:7]=1
ParticipantsProcedureWorkupSources & evidenceReaction notes

Participants

5

Reactant 3

HCID 8471TriethylamineHCID 2724529Triisopropylsilyl trifluoromethanesulfonateHCID 86687072[1-(6-Fluoro-[1,2,4]triazolo[4,3-a]pyridin-3-yl)-piperidin-4-yl]-ethanol

Product 1

HCID 866870716-Fluoro-3-(4-triisopropylsilanyloxyethyl-piperidin-1-yl)-[1,2,4]triazolo[4,3-a]pyridinYield 92%

Reagents, catalysts & solvents 1

HCID 6344
Dichloromethane
Solvent

Procedure

To a solution of Intermediate 66a (319 mg, 1.21 mmol) and Et3N (252 μL, 1.82 mmol) in DCM (10 mL) was added triisopropylsilyltrifluoromethane sulfonate (319 μL, 1.45 mmol) and the mixture stirred at RT for 1.5 h. The mixture was washed with sat. aq. NaHCO3 solution, dried and concentrated in vacuo. The residue was purified by FCC, using 0-10% MeOH in DCM, to give the title compound as an orange solid (465 mg, 92%). LCMS (Method 3): Rt 5.35 min, m/z 421 [MH+].

Workup

  1. washThe mixture was washed with sat. aq. NaHCO3 solution
  2. customdried
  3. concentrationconcentrated in vacuo
  4. customThe residue was purified by FCC

Sources & evidence

ORD record
ord-d554655bb5c84d268745ef403e37445e
Source dataset
uspto-grants-2015_09
DOI
10.6084/m9.figshare.5104873.v1
Patent number
US09145413B2

Reaction notes

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On this pageParticipantsProcedureWorkupSources & evidenceReaction notes