7-{[7-{[(1aR,7aR)-5-oxo-1a,2-dihydro-1H-cyclopropa[c]indol-3(5H)-yl]carbonyl}-1,6-dihydropyrrolo[3,2-e]indol-3(2H)-yl]carbonyl}-1,6-dihydropyrrolo[3,2-e]indole-3(2H)-carboxamide