103850-77-7 12-Dehydro-6alpha-senecioyloxychaparrin 12-Dsoc Picras-3-ene-12,16-dione, 11,20-epoxy-1,2,11-trihydroxy-6-((3-methyl-1-oxo-2-butenyl)oxy)-, (1beta,2alpha,6alpha,11beta)-