Synthesis and anticancer activity evaluation of a quinoline-based 1,2,3-triazoles

A small library of methylthio- or methylseleno-quinolyl-linked 1,4-disubstituted 1,2,3-triazole conjugates has been synthesized from the halogenopropargylthio- or halogenopropargylseleno-quinolines through one-pot click reaction. The ability of all of the synthesized compounds to inhibit the proliferation of the C-32, T-47D, and SNB-19 cell lines was determined using the WST-1 assay. The cytotoxic properties of these new, modified derivatives of quinolyl-triazoles were comparable to those of cisplatin. Two of them, 1-benzyl-4-[methylseleno-(6-chloro-4-quinolyl)]-1H-1,2,3-triazole (2e) and 1-benzyl-4-[methylseleno-(8-bromo-4-quinolyl)]-1H-1,2,3-triazole (2j) demonstrated significant activity on the C-32 and SNB-19 cell lines.