103470-57-1 5,12-Naphthacenedione, 8-ethyl-7,8,9,10-tetrahydro-1,6,8,11-tetrahydroxy-1-((2,3,6-trideoxy-4-O-(2,6-dideoxy-alpha-L-lyxo-hexopyranosyl)-3-(dimethylamino)-alpha-L-lyxo-hexopyranosyl)oxy)-, (7R-trans)- Cosmomycin B'