PERIPLANONEB

(1Z,5E)-1,10(14)-Diepoxy-4(15),5-germacradien-9-one

(1R,2R,5S,6E,10R)-8-Methylene-5-(1-methylethyl)spiro[11-oxabicyclo[8.1.0]undec-6-ene-2,2'-oxiran]-3-one