5-pentyl-3H-furan-2-one

白头翁素

rac-(2R,3a'R,6'R,7a'R)-7a'-pentyl-3',3a',7',7a'-tetrahydro-2'H,5H,5'H,5''H-dispiro[furan-2,4'-benzofuran-6',2''-furan]-2',5,5''-trione