2-(9-氧代氧杂蒽-4-基)乙酸

2-(1-methyl-9-oxoxanthen-4-yl)acetic acid

3a,3b,6a,12b-tetrahydro-2H-difuro<3,2-a:3',2'-c>xanthene-2,5,7(3H,6H)-trione

azidocyclopentane

环戊基醋酸酯