Several novel N-(9-oxo-9H-xanthen-4-yl)benzenesulfonamides derivatives were prepared as potential antiproliferative agents. The in vitro antiproliferative activity of the synthesized compounds was investigated against a panel of tumor cell lines including breast cancer cell lines (MDA-MB-231, T-47D) and neuroblastoma cell line (SK-N-MC) using MTT colorimetric assay. Etoposide, a well-known anticancer drug, was used as a positive standard drug. Among synthesized compounds, 4-methoxy-N-(9-oxo-9H-xanthen-4-yl)benzenesulfonamide (5i) showed the highest antiproliferative activity against MDA-MB-231, T-47D, and SK-N-MC cells. Furthermore, pentafluoro derivatives 5a and 6a exhibited higher antiproliferative activity than doxorubicin against human leukemia cell line (CCRF-CEM) and breast adenocarcinoma (MDA-MB-468) cells. Structure-activity relationship studies revealed that xanthone benzenesulfonamide hybrid compounds can be used for development of new lead anticancer agents.
Motavallizadeh, Somayeh, Asal Asal Fallah-Taftia, Saeedeh Maleki, Amir Nasrolahi Shirazi, Mahboobeh Pordeli, Maliheh Safavi, Sussan Kabudanian Ardestani et al. "Synthesis and Evaluation of Cytotoxic Activity of Substituted N-(9-oxo-9H-xanthen-4-yl) benzenesulfonamides." Tetrahedron Letters, 55.2, 2014: 373-375.
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