4-formyl-6,7-dimethoxy-5-nitroquinoline

1,5-diformyl-1,2,2a,3,4,5-hexahydro-7,8-dimethoxypyrrolo<4,3,2-de>quinoline

7,8-Dimethoxy-1-(toluene-4-sulfonyl)-3,4-dihydro-1H-pyrrolo[4,3,2-de]quinoline-5-carboxylic acid methyl ester

7,8-Dihydroxy-1-(toluene-4-sulfonyl)-3,4-dihydro-1H-pyrrolo[4,3,2-de]quinoline-5-carboxylic acid methyl ester

7-methoxy-4-(dimethoxymethyl)-1-methyl-5-nitro-6-oxiquinolinium

5-formyl-1,3,4,5-tetrahydro-7,8-dimethoxypyrrolo<4,3,2-de>quinoline

4-Dimethoxymethyl-6,7-dimethoxy-5-nitro-2H-quinoline-1-carboxylic acid methyl ester

7,8-Dimethoxy-3,4-dihydro-1H-pyrrolo[4,3,2-de]quinoline-5-carboxylic acid methyl ester

6-chloro-5-formyl-1,3,4,5-tetrahydro-7,8-dimethoxy-1-phenylsulfonylpyrrolo<4,3,2-de>quinoline

1,5-diformyl-1,3,4,5-tetrahydro-7,8-dimethoxypyrrolo<4,3,2-de>quinoline

6-chloro-1,5-diformyl-1,2,2a,3,4,5-hexahydro-7,8-dimethoxypyrrolo<4,3,2-de>quinoline

N-[4-Dimethoxymethyl-6,7-dimethoxy-1-(toluene-4-sulfonyl)-1,2,3,4-tetrahydro-quinolin-5-yl]-4-methyl-benzenesulfonamide

5-Amino-4-dimethoxymethyl-6,7-dimethoxy-3,4-dihydro-2H-quinoline-1-carboxylic acid methyl ester

7,8-Dimethoxy-1,5-bis-(toluene-4-sulfonyl)-1,3,4,5-tetrahydro-pyrrolo[4,3,2-de]quinoline