8,9-dimethoxy-6,6a,11,12-tetrahydro-14H-[1,3]dioxolo[4,5-h]isoquinolino[2,1-b]isoquinolin-14-one

(14Z,104Z)-11H,101H-3,4,7,8,12,13,16,17-octaaza-1(3,5),10(5,3)-dipyrazolacyclooctadecaphane-4,6,13,15-tetraene-2,9,11,18-tetraone