1,3,4,5,7,8-hexahydro-5-methyl-1-(4-methylbenzenesulfonyl)pyrrolo<4,3,2-de>quinoline-7,8-dione

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

5-Amino-4-dimethoxymethyl-6,7-dimethoxy-3,4-dihydro-2H-quinoline-1-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

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