Trifluoroacetic acid → 2-[1-(4-Chlorophenyl)-1-{7-[(methylsulfanyl)methyl]-1H-indol-3-yl}ethyl]cyclopropanecarbonitrile

HRID 561575Notes

Reaction equation

HRID 561575 reaction equation
[Cl:1][C:2]1[CH:7]=[CH:6][C:5]([C:8]([CH:11]2[CH2:13][CH:12]2[C:14]#[N:15])(O)[CH3:9])=[CH:4][CH:3]=1.[CH3:16][S:17][CH2:18][C:19]1[CH:20]=[CH:21][CH:22]=[C:23]2[C:27]=1[NH:26][CH:25]=[CH:24]2.[Cl-].[In+3].[Cl-].[Cl-].FC(F)(F)C(O)=O>ClCCl>[Cl:1][C:2]1[CH:7]=[CH:6][C:5]([C:8]([CH:11]2[CH2:13][CH:12]2[C:14]#[N:15])([C:24]2[C:23]3[C:27](=[C:19]([CH2:18][S:17][CH3:16])[CH:20]=[CH:21][CH:22]=3)[NH:26][CH:25]=2)[CH3:9])=[CH:4][CH:3]=1

Participants

6

Reactant 4

HCID 6422Trifluoroacetic acidHCID 159675indium(III)chlorideHCID 583921877-[(Methylsulfanyl)methyl]-1H-indoleHCID 583923532-[1-(4-Chlorophenyl)-1-hydroxyethyl]cyclopropanecarbonitrile

Product 1

HCID 583924532-[1-(4-Chlorophenyl)-1-{7-[(methylsulfanyl)methyl]-1H-indol-3-yl}ethyl]cyclopropanecarbonitrile

Reagents, catalysts & solvents 1

HCID 6344DichloromethaneSolvent2×

Procedure

150 mg (0.68 mmol) of the compound from Example 75A and 120 mg (0.68 mmol) of the compound from Example 8A were introduced into 4 ml of dichloromethane at 0° C., 157 mg (0.71 mmol) of indium(III) chloride were added, and the mixture was stirred at RT for 1 h and under reflux for 0.5 h. After cooling, 0.05 ml (0.68 mmol) of trifluoroacetic acid was added, and the mixture was stirred under reflux for 5 min. It was diluted with dichloromethane, washed with saturated aqueous sodium bicarbonate solution, water and saturated aqueous sodium chloride solution, dried over magnesium sulfate, filtered and concentrated. The residue was purified by preparative HPLC (RP18 column; mobile phase: acetonitrile/water gradient with addition of 0.1% formic acid) to result in 117 mg (45% of theory) of the title compound as mixture of diastereomers.

Workup

  1. temperatureunder reflux for 0.5 h
  2. temperatureAfter cooling
  3. stirringthe mixture was stirred
  4. temperatureunder reflux for 5 min
  5. washwashed with saturated aqueous sodium bicarbonate solution, water and saturated aqueous sodium chloride solution
  6. dry with materialdried over magnesium sulfate
  7. filtrationfiltered
  8. concentrationconcentrated
  9. customThe residue was purified by preparative HPLC (RP18 column; mobile phase: acetonitrile/water gradient with addition of 0.1% formic acid)

Sources & evidence

ORD record
ord-110066f5ea3541aaae724df7c7e12e54
Source dataset
uspto-grants-2011_11
Patent number
US08063234B2

Reaction notes

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