2,3-dihydrokhellinone

4,9-dimethoxy-5-oxofuro[3,2-g]chromene-6-sulfinic acid

1-(6-ethoxy-4,7-dimethoxy-1-benzofuran-5-yl)ethanone

4,9-dimethoxy-5-oxofuro[3,2-g]chromene-6-carbaldehyde

1-[6-[2-(二甲基氨基)乙氧基]-4,7-二甲氧基-5-苯并呋喃基]乙烷-1-酮