dynemicin O

(1R)-3,4,4a,13,14,14a-Hexahydro-4a,6,8,11,14a,17-hexahydroxy-3β-methoxy-1β-methyl-4,14-[1,2]benzenonaphtho[2,3-c]phenanthridine-2,7,12(1H)-trione