@article{oai:nagasaki-u.repo.nii.ac.jp:00000352, author = {Fukuda, Tsutomu and Matsuoka, Fuyuki and Matsuo, Yuri and Yoshioka, Naoki and Onodera, Gen and Kimura, Masanari and Ishibashi, Fumito and Iwao, Masatomo}, issue = {2}, journal = {HETEROCYCLES}, month = {Dec}, note = {Novel topoisomerase I inhibitors possessing the 5,13-dihydro- 6H-benzo[6,7]indolo[3,2-c]quinolin-6-one (BIQ) scaffold were designed and synthesized. This scaffold was constructed using sequential and regioselective functionalization of the pyrrole core through palladium-catalyzed cross-coupling, conventional electrophilic substitution, directed lithiation, and subsequent diphenylphosphoryl azide (DPPA)-mediated lactam ring construction. The obtained BIQs were evaluated for their topoisomerase I inhibitory activities and their antiproliferative activities in the panel of 39 human cancer cell lines established by the Japanese Foundation for Cancer Research (JFCR39)., HETEROCYCLES, 99(2), pp.1032?1052; 2019}, pages = {1032--1052}, title = {Synthesis and Evaluation of Topoisomerase I Inhibitors Possessing the 5,13-Dihydro-6H-benzo[6,7]indolo[3,2-c]quinolin-6-one Scaffold}, volume = {99}, year = {2018} }