15β-Benzoyloxy-13,20-epoxy-3,11β,12α-trihydroxy-2,16-dioxopicras-3-en-21-oic acid methyl ester

15β-Benzoyloxy-13,20-epoxy-3,11β,12α-trihydroxy-2,16-dioxopicras-3-en-21-oic acid methyl ester · CAS 41451-76-7