3-(3,4-DIMETHOXY-PHENYL)-3-OXO-PROPIONIC ACID
3-(3,4-DIMETHOXY-PHENYL)-3-OXO-PROPIONIC ACID ??
??
3-(3,4-DIMETHOXY-PHENYL)-3-OXO-PROPIONIC ACID C??? ??, ??, ??
3-(3,4-DIMETHOXY-PHENYL)-3-OXO-PROPIONIC ACID ?? ?? ? ???
???
?? ??
3-(3,4-DIMETHOXY-PHENYL)-3-OXO-PROPIONIC ACID ?? ??
???( 0)?? ??