Ammonia → Vilazodone

HRID 1056555Notes

Reaction equation

HRID 1056555 reaction equation
[C:1]([C:3]1[CH:4]=[C:5]2[C:9](=[CH:10][CH:11]=1)[NH:8][CH:7]=[C:6]2[CH2:12][CH2:13][CH2:14][CH2:15][N:16]1[CH2:21][CH2:20][N:19]([C:22]2[CH:23]=[CH:24][C:25]3[O:29][C:28]([C:30]([O:32]C)=O)=[CH:27][C:26]=3[CH:34]=2)[CH2:18][CH2:17]1)#[N:2].[NH3:35]>CO>[CH:11]1[C:3]([C:1]#[N:2])=[CH:4][C:5]2[C:6]([CH2:12][CH2:13][CH2:14][CH2:15][N:16]3[CH2:21][CH2:20][N:19]([C:22]4[CH:23]=[CH:24][C:25]5[O:29][C:28]([C:30]([NH2:35])=[O:32])=[CH:27][C:26]=5[CH:34]=4)[CH2:18][CH2:17]3)=[CH:7][NH:8][C:9]=2[CH:10]=1

Participants

4

Reactant 2

HCID 222AmmoniaHCID 19438830Vilazodone methyl ester

Product 1

HCID 6918314Vilazodone

Reagents, catalysts & solvents 1

HCID 887MethanolSolvent

Conditions

Temperature
30 °C

Procedure

Methyl 5-[4-[4-(5-cyanoindol-3-yl)butyl]piperazin-1-yl]benzofuran-2-carboxylate (41 g) was taken in methanol (1000 ml) under stirring at 25-35° C., followed by reacting with ammonia gas for 2 hours under pressure of 4 Kg/cm2. The separated solid was filtered and then dried to produce 32 g of vilazodone. The mother liquors were taken and the solvent was distilled off under vacuum until the solvent quantity reaches around 50 ml of the initial volume. The resulting mass was cooled to 25-30° C., followed by filtration and then drying to produce 6 g of Vilazodone (Purity by HPLC: 99.5%; Yield: 96%).

Workup

  1. filtrationThe separated solid was filtered
  2. customdried

Sources & evidence

ORD record
ord-da2a708b1bba472dafe1f3f8e2635e36
Source dataset
uspto-grants-2016_07
Patent number
US09399630B2

Reaction notes

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