P. Reddy, P. Padmaja, B. R. Reddy
Jul 26, 2016
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Medicinal Chemistry Research
Abstract
A new series of pyrano[3,2-c]carbazole derivatives which are biologically valuable and synthetically challenging frameworks have been synthesized by domino Knoevenagel-hetero-Diels-Alder reaction. The key strategy involve copper iodide catalyzed cyclization of O-propargyl derivative of N-Boc-carbazole-3-carboxaldehyde with cyclic 1,3-diketones or pyrazol-5-ones to afford N-Boc-pyrano[3,2-c]carbazole derivatives. The antiproliferative activity of the all synthesized compounds on three cancer cell lines such as PANC 1 (pancreatic), HeLa (cervical), and MDA-MB-231 (breast cancer) was investigated. The results clearly demonstrated that compounds 11b, 11d, and 13d were displayed pronounced antriproliferative activity. In addition, antimicrobial activity of these compounds also assayed against three representative gram-positive organisms and gram-negative organisms. Specifically, compound 11c exhibited significant antimicrobial activity. Molecular docking studies revealed that compound 13d selectively occupy the colchicine binding site of the tubulin polymer.