67665-79-6 3-acetyl-10-(cyclohexyloxy)-3,5,12-trihydroxy-6,11-dioxo-1,2,3,4,6,11-hexahydrotetracen-1-yl 3-amino-2,3,6-trideoxyhexopyranoside 67665-89-8 3-acetyl-10-butoxy-3,5,12-trihydroxy-6,11-dioxo-1,2,3,4,6,11-hexahydrotetracen-1-yl 3-amino-2,3,6-trideoxyhexopyranoside