2-(5H-Dibenzocyclohepten-5-ylio)-3,5-dioxo-4-phenyl-1,2,4-triazolidin-1-id
1-(5-Methoxy-5H-dibenzocyclohepten-5-yl)-4-phenyl-1,2,4-triazolidin-3,5-dion
1-(5-Ethoxy-5H-dibenzocyclohepten-5-yl)-4-phenyl-1,2,4-triazolidin-3,5-dion
5-methoxy-5H-dibenzocycloheptene