Hydrochloric Acid → HCID 178420162, compound
Reaction equation
[CH:1]1([C:4]2[CH:12]=[C:11]3[C:7]([C:8]([CH2:19][C:20]4[N:25]=[C:24]([C:26]#[N:27])[CH:23]=[CH:22][CH:21]=4)=[C:9]([C:13]4[CH:18]=[CH:17][CH:16]=[CH:15][CH:14]=4)[NH:10]3)=[CH:6][CH:5]=2)[CH2:3][CH2:2]1.[N-:28]=[N+:29]=[N-:30].[Na+].C(O)(C)C.Cl>[Br-].[Zn+2].[Br-].O>[CH:1]1([C:4]2[CH:12]=[C:11]3[C:7]([C:8]([CH2:19][C:20]4[CH:21]=[CH:22][CH:23]=[C:24]([C:26]5[NH:30][N:29]=[N:28][N:27]=5)[N:25]=4)=[C:9]([C:13]4[CH:18]=[CH:17][CH:16]=[CH:15][CH:14]=4)[NH:10]3)=[CH:6][CH:5]=2)[CH2:2][CH2:3]1Participants
7
Procedure
To a mixture of 6-(6-cyclopropyl-2-phenyl-1H-indol-3-ylmethyl)pyridine-2-carbonitrile (93 mg), sodium azide (86.5 mg), isopropyl alcohol (3.2 mL), and water (2.1 mL) was added zinc bromide (74.9 mg), and this mixture was heated under reflux for 23 hours while stirring. The reaction mixture was left to be cooled. To the reaction mixture was added 1 mol/L hydrochloric acid, followed by extraction with ethyl acetate. The organic layer was washed with saturated brine, dried over anhydrous sodium sulfate, and then concentrated under reduced pressure. The residue was purified by silica gel column chromatography (eluting solvent: methanol-dichloromethane) to obtain the title compound (89.2 mg).
Workup
- temperaturethis mixture was heated
- temperatureunder reflux for 23 hours
- waitThe reaction mixture was left
- temperatureto be cooled
- extractionfollowed by extraction with ethyl acetate
- washThe organic layer was washed with saturated brine
- dry with materialdried over anhydrous sodium sulfate
- concentrationconcentrated under reduced pressure
- customThe residue was purified by silica gel column chromatography (eluting solvent: methanol-dichloromethane)
Sources & evidence
- ORD record
- ord-eac306127bf24b96af10739e95f11421
- Source dataset
- uspto-grants-2014_08
- Patent number
- US08815903B2
Reaction notes
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