2-呋喃丙烯酸

11-(furan-2-yl)-3,3-dimethyl-2,4-dioxaspiro[5.5]undecane-1,5,9-trione

2-丙基四氢吡喃

[(E)-[(E)-4-(5-nitrofuran-2-yl)but-3-en-2-ylidene]amino]urea

2,5-辛二酮