99759-07-6

naphthalene-1,5-disulfonic acid - methyl 9-[4-(acetyloxy)-3'-(2-chloroethyl)-3a-ethyl-8-methoxy-6-methyl-2',4'-dioxo-3a,5a,6,11,12,13a-hexahydro-1H,4H-spiro[indolizino[8,1-cd]carbazole-5,5'-[1,3]oxazolidin]-9-yl]-5-ethyl-5-hydroxy-1,4,5,6,7,8,9,10-octahyd