Trifluoroacetic acid → HCID 69352775, compound

HRID 459833Notes

Reaction equation

HRID 459833 reaction equation
C(OC([N:8]1[CH2:13][CH2:12][N:11]([C:14]2[CH:23]=[CH:22][CH:21]=[C:20]3[C:15]=2[CH2:16][CH2:17][N:18]([S:24]([C:27]2[CH:32]=[CH:31][CH:30]=[CH:29][CH:28]=2)(=[O:26])=[O:25])[CH2:19]3)[CH2:10][CH2:9]1)=O)(C)(C)C.[F:33][C:34]([F:39])([F:38])[C:35]([OH:37])=[O:36]>>[F:33][C:34]([F:39])([F:38])[C:35]([OH:37])=[O:36].[C:27]1([S:24]([N:18]2[CH2:17][CH2:16][C:15]3[C:20](=[CH:21][CH:22]=[CH:23][C:14]=3[N:11]3[CH2:10][CH2:9][NH:8][CH2:13][CH2:12]3)[CH2:19]2)(=[O:26])=[O:25])[CH:28]=[CH:29][CH:30]=[CH:31][CH:32]=1

Participants

3

Reactant 2

HCID 6422Trifluoroacetic acidHCID 69352330HCID 69352330, compound

Product 1

HCID 69352775HCID 69352775, compound

Procedure

4-(2-Benzenesulfonyl-1,2,3,4-tetrahydroisoquinolin-5-yl)-piperazine-1-carboxylic acid tert-butyl ester (1.76 mg) from Step 5 was dissolved in 3 mL of trifluoroacetic acid (TFA) and heated briefly via steam bath. Excess TFA was removed in vacuo, and the residue was recrystallized from absolute ethanol to yield 83 mg of 2-Benzenesulfonyl-5-piperazin-1-yl-1,2,3,4-tetrahydroisoquinoline trifluoroacetic acid salt as a white solid, MP=214–216° C., MS M+H=358.

Workup

  1. temperatureheated briefly via steam bath
  2. customExcess TFA was removed in vacuo
  3. customthe residue was recrystallized from absolute ethanol

Sources & evidence

ORD record
ord-040ed9642289490aad43648947042b30
Source dataset
uspto-grants-2007_03
Patent number
US07196088B2

Reaction notes

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