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Hoffmann, R. A wiki for the life sciences where authorship matters. Nature Genetics (2008)
 
 
 
 
 

The cytotoxicity of N-Pyridinyl and N-quinolinyl substituted derivatives of phthalimide and succinimide.

The N-pyridinyl and N-quinolinyl substituted derivatives of phthalimides and succinimides demonstrated cytotoxicity against the growth of a number of cultured cell lines. The substituted succinimides were more effective than the unsubstituted succinimide derivative in reducing cell growth. On the other hand, phthalimide demonstrated more potent cytotoxicity than its N-substituted derivatives. Three representative examples N-[2-pyridinyl-1-oxide) methyl] phthalimide 8, 1-[N-2-phthalimidoethyl]-3,4-dihydroiso-quinoline 12, and 1-[N-(2-(1,2,3,4-tetrahydro-2-quinolinyl)] ethylphthalimide 14 were shown to inhibit L1210 leukemia DNA synthesis whereas RNA synthesis was not inhibited at 25-100 uM. All three agents inhibited the activities of DNA polymerase alpha, PRPP-amido transferase, nucleoside kinases, and dihydrofolate reductase. The cellular pool levels of d[GTP], d[CTP], and d[TTP] were reduced after 60 minutes incubation at 100 uM. The DNA molecule itself was not a target of these agents.[1]

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