[2S-[2alpha(8R*,10R*),4beta,6beta]]-10-[(4-aminotetrahydro-6-methyl-2H-pyran-2-yl)oxy]-7,8,9,10-tetrahydro-6,8,11-trihydroxy-8-(hydroxyacetyl)-1-methoxynaphthacene-5,12-dione hydrochloride