Cyclopropa[c]pyrrolo[3,2-e]indol-4(5H)-one,2,2'-(1,10-dioxo-1,10-decanediyl)bis[1,2,8,8a-tetrahydro-7-methyl-,[7bR-[2(7'bR*,8'aS*),7bR*,8aS*]]-