107052-56-2 2,6-Piperazinedione, 4-(((8beta)-9,10-didehydro-6-methylergolin-8-yl)methyl)- 4-((9,10-Didehydro-6-methylergolin-8beta-yl)methyl)-2,6-piperazinedione Fce 23884 Romergoline Romergoline [INN]