(Diethylamino)sulfur trifluoride → HCID 68283920, compound
Reaction equation
[Cl:1][C:2]1[CH:10]=[CH:9][C:8]2[N:7]([CH2:11][C:12]([C:15]3[CH:20]=[CH:19][C:18]([F:21])=[CH:17][CH:16]=3)(O)[CH3:13])[C:6]3[CH2:22][CH2:23][N:24]([CH3:26])[CH2:25][C:5]=3[C:4]=2[CH:3]=1.CCN(S(F)(F)[F:33])CC>C(Cl)Cl>[Cl:1][C:2]1[CH:10]=[CH:9][C:8]2[N:7]([CH2:11][C:12]([F:33])([C:15]3[CH:20]=[CH:19][C:18]([F:21])=[CH:17][CH:16]=3)[CH3:13])[C:6]3[CH2:22][CH2:23][N:24]([CH3:26])[CH2:25][C:5]=3[C:4]=2[CH:3]=1Participants
Reactant 2
Product 1
Reagents, catalysts & solvents 1
Conditions
- Temperature
- 0 °C
Procedure
To an ice-cooled stirred solution of 1-(8-chloro-1,2,3,4-tetrahydro-2-methylpyrido[4,3-b]indol-5-yl)-2-(4-fluorophenyl)propan-2-ol (500 mg, 1.3 mmol) in DCM (50 mL) was dropwise added DAST (443 mg, 2.6 mmol) and the reaction mixture was stirred at 0° C. for 1 h. The reaction mixture was diluted with DCM (50 mL), washed with saturated sodium bicarbonate solution (3×30 mL), dried over anhydrous sodium sulfate and concentrated. The residue was purified with reverse phase HPLC to yield 8-chloro-5-(2-fluoro-2-(4-fluorophenyl)propyl)-2,3,4,5-tetrahydro-2-methyl-1H-pyrido[4,3-b]indole. 1H-NMR (DMSO-d6, oxalate salt) δ (ppm): 7.50 (s, 1H), 7.40 (m, 3H), 7.18 (t, 2H), 7.05 (d, 1H), 4.60 (m, 2H), 4.25 (m, 2H), 3.05 (m, 2H), 2.85 (s, 3H), 2.70 (m, 2H), 1.65 (d, 3H). Separation by chiral HPLC provides enantiomers II-211a-b.
Workup
- washwashed with saturated sodium bicarbonate solution (3×30 mL)
- dry with materialdried over anhydrous sodium sulfate
- concentrationconcentrated
- customThe residue was purified with reverse phase HPLC
Sources & evidence
- ORD record
- ord-2bb4d56b1dd0476e93c33f128264029f
- Source dataset
- uspto-grants-2014_08
- Patent number
- US08815843B2
Reaction notes
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