26863-98-9 3-Pyridinecarboxamide, N-(10,11-dihydro-5H-dibenzo(a,d)cyclohepten-5-yl)- N-(10,11-Dihydro-5H-dibenzo(a,d)cyclohepten-5-yl)-3-pyridinecarboxamide N-(Dibenzo(2,3:6,7)cycloheptadien-5-yl)nicotinamide [French]