NC55924
Pyrano[3,2-g:5,6-g′]diquinolin-13-ium, 6-[2-carboxy-3,4,6-trichloro-5-[[2-oxo-2-[[6-oxo-6-[[3-[1,2,3,4-tetrahydro-1-[5-O-[hydroxy(phosphonooxy)phosphinyl]-β-D-ribofuranosyl]-2,4-dioxo-5-pyrimidinyl]-2-propenyl]amino]hexyl]amino]ethyl]thio]phenyl]-1,2,3,4,8,9,10,11-octahydro-2,2,4,8,10,10-hexamethyl-...