OPTICALLY ACTIVE MALEIMIDE DERIVATIVES, OPTICALLY ACTIVE POLYMALEIMIDE DERIVATIVES, PRODUCTION METHOD THEREOF, SEPARATING AGENT USING THE SAME DERIVATIVE, AND METHOD FOR SEPARATING OPTICALLY ACTIVE COMPOUNDS USING THE SAME AGENT

A separating agent that serves as an optical resolution agent is composed of a novel, useful optically active polymer. The separating agent is obtained through anionic polymerization of a novel maleimide and serves to separate optically active compounds.