Hydrogen chloride-ethyl acetate → 1-(3-(2-(1-benzothiophene-5-yl)ethoxy)propyl)-N,N-dimethyl-3-pyrrolidinamine dihydrochloride
Reaction equation
[S:1]1[C:5]2[CH:6]=[CH:7][C:8]([CH2:10][CH2:11][O:12][CH2:13][CH2:14][CH2:15][N:16]3[CH2:20][CH2:19][CH:18]([N:21]([CH3:23])[CH3:22])[CH2:17]3)=[CH:9][C:4]=2[CH:3]=[CH:2]1.C(OCC)(=O)C.[ClH:30]>C(OCC)(=O)C>[ClH:30].[ClH:30].[S:1]1[C:5]2[CH:6]=[CH:7][C:8]([CH2:10][CH2:11][O:12][CH2:13][CH2:14][CH2:15][N:16]3[CH2:20][CH2:19][CH:18]([N:21]([CH3:23])[CH3:22])[CH2:17]3)=[CH:9][C:4]=2[CH:3]=[CH:2]1Participants
4
Procedure
In 4.0 mL of ethyl acetate was dissolved 0.39 g of 1-{3-[2-(1-benzothiophen-5-yl)ethoxy]propyl}-N,N-dimethyl-3-pyrrolidinamine, and to the solution was added 0.80 mL of a 3.25 mol/L dried hydrogen chloride-ethyl acetate solution. The resulting mixture was stirred at room temperature for 1 hour and then at 5° C. for 1 hour. The crystals precipitated were collected by filtration, washed with ethyl acetate and then dried to obtain 0.32 g of 1-{3-[2-(1-benzothiophen-5-yl)ethoxy]propyl}-N,N-dimethyl-3-pyrrolidinamine dihydrochloride as colorless crystals.
Workup
- waitat 5° C. for 1 hour
- customThe crystals precipitated
- filtrationwere collected by filtration
- washwashed with ethyl acetate
- customdried
Sources & evidence
- ORD record
- ord-6a7265b00b8b42af8a454e0899c70e7e
- Source dataset
- uspto-grants-2006_08
- Patent number
- US07087594B2
Reaction notes
Loading…