1-(2-nitrophenyl)-1H-benzo[d][1,2,3]triazole

2,3,4,9-四氢-1H-咔唑-1-酮

methyl 2-(1-oxo-2,3,4,9-tetrahydro-1H-carbazol-2-yl)oxoacetate

1-methoxy-9H-carbazole

咔唑