Estafietin

Estafiatin

(3aS,6aβ,7aα,8bβ,8cα)-3a,4,5,6,6a,7,7a,8a,8b,8c-Decahydro-8aα-methyl-3,6-bis(methylene)oxireno[2,3]azuleno[4,5-b]furan-2(3H)-one