Trifluoroacetic acid → 3-[4-[4-(1,2,3,4-Tetrahydroisoquinolin-7-yloxymethyl)piperidin-1-yl]pyridin-3-yl]-2-propenoic acid ethyl ester

HRID 412574Notes

Reaction equation

HRID 412574 reaction equation
[CH2:1]([O:3][C:4](=[O:38])[CH:5]=[CH:6][C:7]1[CH:8]=[N:9][CH:10]=[CH:11][C:12]=1[N:13]1[CH2:18][CH2:17][CH:16]([CH2:19][O:20][C:21]2[CH:30]=[C:29]3[C:24]([CH2:25][CH2:26][N:27](C(OC(C)(C)C)=O)[CH2:28]3)=[CH:23][CH:22]=2)[CH2:15][CH2:14]1)[CH3:2].FC(F)(F)C(O)=O>C(Cl)(Cl)Cl>[CH2:1]([O:3][C:4](=[O:38])[CH:5]=[CH:6][C:7]1[CH:8]=[N:9][CH:10]=[CH:11][C:12]=1[N:13]1[CH2:18][CH2:17][CH:16]([CH2:19][O:20][C:21]2[CH:30]=[C:29]3[C:24]([CH2:25][CH2:26][NH:27][CH2:28]3)=[CH:23][CH:22]=2)[CH2:15][CH2:14]1)[CH3:2]

Participants

4

Reactant 2

HCID 6422Trifluoroacetic acidHCID 696983913-[4-[4-(2-Tert-butoxycarbonyl-1,2,3,4-tetrahydroisoquinolin-7-yloxymethyl)piperidin-1-yl]pyridin-3-yl]-2-propenoic acid ethyl ester

Product 1

HCID 696969403-[4-[4-(1,2,3,4-Tetrahydroisoquinolin-7-yloxymethyl)piperidin-1-yl]pyridin-3-yl]-2-propenoic acid ethyl esterYield 86.6%

Reagents, catalysts & solvents 1

HCID 6212ChloroformSolvent

Procedure

To a solution of 3-[4-[4-(2-tert-butoxycarbonyl-1,2,3,4-tetrahydroisoquinolin-7-yloxymethyl)piperidin-1-yl]pyridin-3-yl]-2-propenoic acid ethyl ester (100 mg) in chloroform (1.5 ml) was added trifluoroacetic acid (0.45 ml), and the mixture was stirred at room temperature for 1 hour. After completion of the reaction, the solvent was evaporated. To the obtained residue was added aqueous sodium hydrogencarbonate solution and the mixture was extracted with ethyl acetate and washed successively with water and saturated brine. The organic layer was dried over anhydrous sodium sulfate and the solvent was evaporated. The residue was dried under reduced pressure to give the title compound (70 mg).

Workup

  1. customAfter completion of the reaction
  2. customthe solvent was evaporated
  3. additionTo the obtained residue was added aqueous sodium hydrogencarbonate solution
  4. extractionthe mixture was extracted with ethyl acetate
  5. washwashed successively with water and saturated brine
  6. dry with materialThe organic layer was dried over anhydrous sodium sulfate
  7. customthe solvent was evaporated
  8. customThe residue was dried under reduced pressure

Sources & evidence

ORD record
ord-ca252911284d400c93a0f3b539359480
Source dataset
uspto-grants-2003_05
Patent number
US06562828B1

Reaction notes

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