PICRASIN-A

Nigakilactone G

(13α,14β,20R)-7α,11α,21-Trihydroxy-2-methoxy-4α,8-dimethyl-1,17-dioxo-24-nor-16,17-seco-5α-chol-2-ene-16,23-dioic acid γ-lactoneδ-lactone