Patulolide A

Patulolide C 5-ketone

(12R,E)-12-Methyloxacyclododeca-3-ene-2,5-dione

(3E,12R)-12-Methyloxacyclododeca-3-ene-2,5-dione

(3E,12R)-12-Methyl-1-oxa-3-cyclododecene-2,5-dione