Abstract
The present study describes the synthesis, characterization and evaluation of antiproliferative activity of novel diisopropylphenyl esters of alpha-linolenic acid (ALA), valproic acid (VA), butyric acid (BA) and 2-ethylhexanoic acid (2-EHA). These esters were chemically synthesized by the esterification of fatty acids with 2,6-diisopropylphenol and 2,4-diisopropylphenol (propofol). The structure of new conjugates viz. propofol-(alpha-linolenic acid) (2,6P-ALA and 2,4P-ALA), propofol-valproic acid (2,6P-VA and 2,4P-VA), propofol-butyric acid (2,6P-BA and 2,4P-BA) and propofol-(2-ethylhexanoic acid) (2,6P2-EHA and 2,4P-2-EHA) were characterized by FT-IR, NMR ((1)H, (13)C) and mass spectral data. The synthesized conjugates having more lipophilic character were tested for antiproliferative in vitro studies on A549, MDA-MB-231, HeLa, Mia-Pa-Ca and HePG2 cancer cell lines. All the conjugates showed specific growth inhibition on studied cancer cell lines. Among the synthesized esters, the conjugates synthesized from BA, VA and 2-EHA exhibited prominent growth inhibition against A549, HeLa, Mia-Pa-Ca and HePG2 cancer cell lines. The preliminary results suggest that the entire novel conjugates possess antiproliferative properties that reduce the proliferation of cancer cells in vitro.
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