Trifluoroacetic acid → 3-{2-[4-(4-Chloro-3-methoxy-phenyl)-piperazin-1-yl]-2-oxo-ethyl}-6-(2-hydroxy-ethoxy)-3H-benzooxazol-2-one

Participants

Reaction Steps

To a solution of 3-{2-[4-(4-chloro-3-methoxy-phenyl)-piperazin-1-yl]-2-oxo-ethyl}-6-[2-(tetrahydro-pyran-2-yloxy)-ethoxy]-3H-benzooxazol-2-one (55) (50 mg) in THF was added 1 mL of TFA and the resultant solution was stirred for 1 hour. The reaction mixture was purified by HPLC to provide 3-{2-[4-(4-chloro-3-methoxy-phenyl)-piperazin-1-yl]-2-oxo-ethyl}-6-(2-hydroxy-ethoxy)-3H-benzooxazol-2-one (56): LCMS observed for (M+H)+: 462.5.

Provenance & Evidence