2-溴-1-茚满酮

3-氯代苯丙酮

环庚三烯酮

dimethyl 7-oxabicyclo[2.2.1]hepta-2(3),5(6)-diene-2,3-dicarboxylate

dimethyl (1S,4R,4aS,5S,9S,9aS)-6-oxo-4,4a,5,6,9,9a-hexahydro-1H-1,4-epoxy-5,9-ethenobenzo[7]annulene-2,3-dicarboxylate