(2E)-4-oxiran-2-yl-2-(5-oxofuran-2(5H)-ylidene)but-3-yn-1-yl acetate 1''-Acetylaporpinone B 2(5H)-furanone, 5-[1-[(acetyloxy)methyl]-3-oxiranyl-2-propynylidene]-, (5E)- Acetic acid 4-oxiranyl-2-(5-oxo-5H-furan-2-ylidene)-but-3-ynyl ester InChI=1/C12H10O5/c1-8(13)15-6-9(2-3-10-7-16-10)11-4-5-12(14)17-11/h4-5,10H,6-7H2,1H3/b11-9