[R,(-)]-2-[m-(Acetylamino)phenyl]propionic acid
[R,(-)]-2-[m-(Acetylamino)phenyl]propionic acid ??
??
[R,(-)]-2-[m-(Acetylamino)phenyl]propionic acid C??? ??, ??, ??
[R,(-)]-2-[m-(Acetylamino)phenyl]propionic acid ?? ?? ? ???
???
?? ??
[R,(-)]-2-[m-(Acetylamino)phenyl]propionic acid ?? ??
???( 0)?? ??