The molecule is a pyrrolizine alkaloid that is seneciphylline in which the exocyclic double bond has been converted to the corresponding epoxide. It has a role as a Jacobaea metabolite. It is a macrocyclic lactone, an organic heterotricyclic compound, a pyrrolizine alkaloid, a spiro-epoxide, a tertiary alcohol and a tertiary amino compound. It derives from a seneciphylline.
(1R,3'S,4S,7R,17R)-7-hydroxy-3',7-dimethyl-6-methylidenespiro[2,9-dioxa-14-azatricyclo[9.5.1.014,17]heptadec-11-ene-4,2'-oxirane]-3,8-dione