107807-19-2 5,12-Naphthacenedione, 8-ethyl-7,8,9,10-tetrahydro-1,4,6,8,11-pentahydroxy-7-((2,3,6-trideoxy-3-(dimethylamino)-alpha-L-lyxo-hexopyranosyl)oxy)- Obelmycin G