Trifluoroacetic acid → HCID 58392176, compound

HRID 561687Notes

Reaction equation

HRID 561687 reaction equation
[Cl-].[In+3].[Cl-].[Cl-].FC(F)(F)C(O)=O.[Cl:12][C:13]1[CH:18]=[CH:17][C:16]([CH:19](O)[CH:20]2[CH2:22][CH:21]2[C:23]#[N:24])=[C:15]([O:26][CH3:27])[CH:14]=1.[F:28][C:29]1[CH:30]=[C:31]2[C:35](=[C:36]([CH2:38][S:39]([CH3:42])(=[O:41])=[O:40])[CH:37]=1)[NH:34][CH:33]=[CH:32]2.[Cl-].[NH4+]>ClCCCl>[Cl:12][C:13]1[CH:18]=[CH:17][C:16]([CH:19]([C:32]2[C:31]3[C:35](=[C:36]([CH2:38][S:39]([CH3:42])(=[O:40])=[O:41])[CH:37]=[C:29]([F:28])[CH:30]=3)[NH:34][CH:33]=2)[CH:20]2[CH2:22][CH:21]2[C:23]#[N:24])=[C:15]([O:26][CH3:27])[CH:14]=1

Participants

7

Procedure

104 mg (0.47 mmol) of indium(III) chloride and 0.05 ml (0.70 mmol) of trifluoroacetic acid were added to 93.0 mg (0.39 mmol) of the compound from Example 163A and 121 mg (0.47 mmol) of the compound from Example 87A with a purity of 88% under argon in 5 ml of 1,2-dichloroethane, and the mixture was heated under reflux for 2 h. Addition of the reaction mixture to saturated aqueous ammonium chloride solution was followed by extraction with dichloromethane, drying over magnesium sulfate, filtration and concentration. The residue was purified by preparative HPLC (RP18 column; mobile phase: acetonitrile/water gradient with addition of 0.1% formic acid) to result in 35.0 mg (20% of theory) of diastereomer 1 and 31.3 mg (18% of theory) of diastereomer 2 of the title compound.

Workup

  1. temperaturethe mixture was heated
  2. temperatureunder reflux for 2 h
  3. extractionwas followed by extraction with dichloromethane
  4. dry with materialdrying over magnesium sulfate, filtration and concentration
  5. 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-8f34963b4a224b85ae4f31117c1492ab
Source dataset
uspto-grants-2011_11
Patent number
US08063234B2

Reaction notes

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