- 8′-Fluoro-6′-methyl-5’,6′-dihydrospiro[cyclopen-tane-1,4′-pyrrolo[3,2,1-ij]quinoline]-1’,2′-dione,95%, 500mg
- 6’,6′-Dimethyl-5’,6′-dihydrospiro[cyclohexane-1,4′-pyrrolo[3,2,1-ij]quinoline]-1’,2′-dione,95%, 500mg
- 6’,6’,8′-Trimethyl-5’,6′-dihydrospiro[cycloheptane-1,4′-pyrrolo[3,2,1-ij]quinoline]-1’,2′-dione,95%, 500mg