spiro[pyrrolidine-3,9'-xanthene]-2-one

9H-氧杂蒽-9-甲醛

trimethyl(9H-xanthen-9-yl)silane

4,6-Dimethyl-3-phenyl-4-(9H-xanthen-9-yl)-3,4-dihydro-1H-pyrimidin-2-one

4,6-dimethyl-3-phenyl-1,3-diazabicyclo[2.2.0]hex-5-en-2-one