“…Compounds containing thiol have a broad spectrum of biological actions and have generated wide research interest. Some sulfide and sulfoxide quinones have been reported to have antifungal activity (De Paiva, Lima, Figueiredo, & Kaplan, 2004) and synthetic thiol containing derivatives of 1,4-naphthoquinone have been reported as potent antimicrobial and anticancer agents (Braud et al, 2008;Buchkevych, Stasevych, Chervetsova, Musyanovych, & Novikov, 2012;Ibis et al, 2013;Ibis et al, 2016;Tandon, Maurya, Verma, Kumar, & Shukla, 2010).…”