Trifluoroacetic acid → 2-Methyl-2-[(4-{2-[4-(4-phenylpiperazin-1-yl)phenoxy]ethyl}-1,3-thiazol-2-yl)thio]propionic acid

HRID 914336Notes

Reaction equation

HRID 914336 reaction equation
C([O:5][C:6](=[O:37])[C:7]([CH3:36])([S:9][C:10]1[S:11][CH:12]=[C:13]([CH2:15][CH2:16][O:17][C:18]2[CH:23]=[CH:22][C:21]([N:24]3[CH2:29][CH2:28][N:27]([C:30]4[CH:35]=[CH:34][CH:33]=[CH:32][CH:31]=4)[CH2:26][CH2:25]3)=[CH:20][CH:19]=2)[N:14]=1)[CH3:8])(C)(C)C.FC(F)(F)C(O)=O>ClCCl>[CH3:36][C:7]([S:9][C:10]1[S:11][CH:12]=[C:13]([CH2:15][CH2:16][O:17][C:18]2[CH:19]=[CH:20][C:21]([N:24]3[CH2:25][CH2:26][N:27]([C:30]4[CH:35]=[CH:34][CH:33]=[CH:32][CH:31]=4)[CH2:28][CH2:29]3)=[CH:22][CH:23]=2)[N:14]=1)([CH3:8])[C:6]([OH:37])=[O:5]

Participants

4

Reactant 2

HCID 6422Trifluoroacetic acidHCID 597588872-Methyl-2-[(4-{2-[4-(4-phenylpiperazin-1-yl)phenoxy]ethyl}-1,3-thiazol-2-yl)thio]propionic acid tert-butyl ester

Product 1

HCID 597589422-Methyl-2-[(4-{2-[4-(4-phenylpiperazin-1-yl)phenoxy]ethyl}-1,3-thiazol-2-yl)thio]propionic acidYield 75.2%

Reagents, catalysts & solvents 1

HCID 6344DichloromethaneSolvent

Procedure

2-Methyl-2-[(4-{2-[4-(4-phenylpiperazin-1-yl)phenoxy]ethyl}-1,3-thiazol-2-yl)thio]propionic acid tert-butyl ester (490 mg) obtained in Example 148-1 was dissolved in dichloromethane (6 mL), trifluoroacetic acid (2 mL) was added, and the mixture was stirred at room temperature for 12 hr. The reaction mixture was concentrated under reduced pressure, and the residue was purified by silica gel chromatography (elution solvent; hexane:ethyl acetate=1:1 to 0:1) to give the title compound (330 mg) as a white solid.

Workup

  1. concentrationThe reaction mixture was concentrated under reduced pressure
  2. customthe residue was purified by silica gel chromatography (elution solvent; hexane:ethyl acetate=1:1 to 0:1)

Sources & evidence

ORD record
ord-a4fb48577cb446299d45adddfbc9b569
Source dataset
uspto-grants-2011_09
Patent number
US08026370B2

Reaction notes

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