bruceoside B

Javanicoside A

15-(3-Methyl-2-butanoyl)bruceolide 3-O-β-D-glucopyranoside

2,16-Dioxo-3-(β-D-glucopyranosyloxy)-13,20-epoxy-15β-(3-methyl-2-butenoyloxy)-11β,12α-dihydroxypicras-3-en-21-oic acid methyl ester

13,20-Epoxy-3-(β-D-glucopyranosyloxy)-11β,12α-dihydroxy-15β-(3-methyl-2-butenoyloxy)-2,16-dioxopicrasa-3-ene-21-oic acid methyl ester

13,20-Epoxy-3-(β-D-glucopyranosyloxy)-11β,12α-dihydroxy-15β-[(3-methyl-1-oxo-2-butenyl)oxy]-2,16-dioxopicras-3-en-21-oic acid methyl ester