(E)-1-((5,6-Dihydro-6-oxo-11-morphanthridinylidene)acetyl)-4-methylpiperazine (E)-11-(2-(4-Methyl-1-piperazinyl)-2-oxoethyliden)-11H-dibenzo(b,e)azepin-5(6H)-on 90274-22-9 Darenzepine Darenzepine [INN] Darenzepinum