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Methyl iodide → 1-[3-{2-[benzyl-(4-pyridin-3-yl-butyl)amino]ethyl}2-(3,5-dimethylphenyl)-1H-indol-5-yl]-4-methyl-1,4-dihydrotetrazol-5-one

HRID 1956529
Notes
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Reaction equation

HRID 1956529 reaction equation
[CH2:1]([N:8]([CH2:34][CH2:35][CH2:36][CH2:37][C:38]1[CH:39]=[N:40][CH:41]=[CH:42][CH:43]=1)[CH2:9][CH2:10][C:11]1[C:19]2[C:14](=[CH:15][CH:16]=[C:17]([N:20]3[C:24](=[O:25])[NH:23][N:22]=[N:21]3)[CH:18]=2)[NH:13][C:12]=1[C:26]1[CH:31]=[C:30]([CH3:32])[CH:29]=[C:28]([CH3:33])[CH:27]=1)[C:2]1[CH:7]=[CH:6][CH:5]=[CH:4][CH:3]=1.[C:44](=O)([O-])[O-].[K+].[K+].IC>C(Cl)Cl>[CH2:1]([N:8]([CH2:34][CH2:35][CH2:36][CH2:37][C:38]1[CH:39]=[N:40][CH:41]=[CH:42][CH:43]=1)[CH2:9][CH2:10][C:11]1[C:19]2[C:14](=[CH:15][CH:16]=[C:17]([N:20]3[C:24](=[O:25])[N:23]([CH3:44])[N:22]=[N:21]3)[CH:18]=2)[NH:13][C:12]=1[C:26]1[CH:27]=[C:28]([CH3:33])[CH:29]=[C:30]([CH3:32])[CH:31]=1)[C:2]1[CH:3]=[CH:4][CH:5]=[CH:6][CH:7]=1
ParticipantsProcedureWorkupSources & evidenceReaction notes

Participants

5

Reactant 3

HCID 6328Methyl iodideHCID 11430Potassium CarbonateHCID 1357385301-[3-{2-[benzyl-(4-pyridin-3-yl-butyl)-amino]ethyl}-2-(3,5-dimethylphenyl)-1H-indol-5-yl]-1,4-dihydrotetrazol-5-one

Product 1

HCID 212498931-[3-{2-[benzyl-(4-pyridin-3-yl-butyl)amino]ethyl}2-(3,5-dimethylphenyl)-1H-indol-5-yl]-4-methyl-1,4-dihydrotetrazol-5-oneYield 78.1%

Reagents, catalysts & solvents 1

HCID 6344DichloromethaneSolvent

Procedure

To a solution of 1-[3-{2-[benzyl-(4-pyridin-3-yl-butyl)-amino]ethyl}-2-(3,5-dimethylphenyl)-1H-indol-5-yl]-1,4-dihydrotetrazol-5-one (25 mg in 1.5 mL dry N,N-dimethylformamide) at 0° C. was added 13 mg potassium carbonate followed by 0.033 mL of a 10% solution of iodomethane in methylene cloride, and the mixture stirred at low temperature. After 2 hours, the reaction was quenched by the addition of saturated aqueous ammonium chloride and the mixture extracted with ethyl acetate. The organic portion was washed successively with water and brine, dried over sodium sulfate and concentrated in vacuo. Purification of the concentrate by flash chromatography on silica gel (methylene chloride:methanol, 95:5) gave the title compound (20 mg).

Workup

  1. customthe reaction was quenched by the addition of saturated aqueous ammonium chloride
  2. extractionthe mixture extracted with ethyl acetate
  3. washThe organic portion was washed successively with water and brine
  4. dry with materialdried over sodium sulfate
  5. concentrationconcentrated in vacuo
  6. customPurification of the
  7. concentrationconcentrate by flash chromatography on silica gel (methylene chloride:methanol, 95:5)

Sources & evidence

ORD record
ord-893a55f6631748929a208d6a984d0f78
Source dataset
uspto-grants-1998_07
DOI
10.6084/m9.figshare.5104873.v1
Patent number
US05780437

Reaction notes

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On this pageParticipantsProcedureWorkupSources & evidenceReaction notes