环戊基甲酰氯

1-Bromo-cyclopentanecarbonyl bromide

dispiro[4.1:4.1]dodecane-12-thio-6,12-dione

trimethyl 9-methyl-2-oxo-1,2,3,9a-tetrahydro-3,9a-ethenocarbazole-1-spirocyclopentane-4,10,11-tricarboxylate

trimethyl 9-oxo-5,6,7a,8,9,10-hexahydro-7a,10-etheno-4H-pyrido(3,2,1-jk)carbazole-8-spirocyclopentane-11,12,13-tricarboxylate