1-Naphthacenecarboxylic acid, 1,2,3,4,6,11-hexahydro-4-((4-O-(3-O-acetyl-2,6-dideoxy-4-O-((2R-trans)-tetrahydro-6-methyl-5-oxo-2H-pyran-2-yl)-alpha-L-lyxo-hexopyranosyl)-2,3,6-trideoxy-3-(dimethylamino)-alpha-L-lyxo-hexopyranosyl)oxy)-6,11-dioxo-2-ethyl-2,5,7-trihydroxy-, methyl ester, (1R-(1-alpha,2-beta,4-beta))-, hydrate (2:1) 81975-85-1