(1R,2S,3S,4R)-3-Acetoxy-1,2,4,5-tetrahydroxy-7-methoxy-2-methyl-1,2,3,4-tetrahydroanthracen-9,10-dione (I), and 8-(4,5,6-trihydroxy-7-methyl-2-methoxy-9,10-dioxo-9H,10H-anthracen-1-yl)-(1S,2S,3R,4S)-1,2,3,4,5-pentahydroxy-7-methoxy-2-methyl-1,2,3,4-tetrahydro-9H,10H-anthracen-9,10-dione (II), are new. Independent claims are included for: (1) the preparation of (I) or (II) and (2) the preparations of (I). ACTIVITY : Antibacterial Fungicide Virucide Cytostatic. The antibacterial activity of (I) and (II) were tested in Streptococcus pneumoniaeusing in vitro assay. The results showed that the minimal inhibitory concentration of (I) and (II) was 7.8 mu g/ml. MECHANISM OF ACTION : None given.
