@article{3063059, title = "A facile synthesis of C2-substituted pyrrolo[2,3-f]quinolines with cytotoxic activity", author = "Tsotinis, A. and Vlachou, M. and Zouroudis, S. and Jeney, A. and Timár, F. and Thurston, D.E. and Roussakis, C.", journal = "Letters in Drug Design and Discovery", year = "2005", volume = "2", number = "3", pages = "189-192", doi = "10.2174/1570180053765075", keywords = "1h pyrrolo[2,3 f]quinoline 2 carboxamide derivative; 6 quinolinecarboxaldehyde; pyrrolo[2,3 f]quinoline derivative; quinoline derivative; unclassified drug, article; cyclization; cytotoxicity; drug hydrolysis; drug structure; drug synthesis; priority journal; tumor cell line", abstract = "An expeditious four-step synthesis of the 1H-pyrrolo[2,3-f]quinoline-2- carboxamides (5a-h) is described. Readily available 6-quinolinecarboxaldehyde is converted to the parent acid (6) by nucleophilic attack of the azido-ester (9) and intramolecular cyclization of (10) followed by hydrolysis of the methyl ester (11). The cytotoxicity of the target molecules (5a-h) was evaluated in four tumour cell lines in vitro. One compound (5d) showed sufficient activity (IC50 = 10.2 μM) in the human non-small cell lung cell line NSCLC-N16-L16 to be worthy of further study. © 2005 Bentham Science Publishers Ltd." }