1. Natural Products Chemistry Laboratory, Industrial Chemistry Unit, Department of Chemical Sciences, Ondo State University of Science and Technology, Okitipupa, Nigeria;
2. H. E. J. Research Institute of Chemistry, International Center for Chemical and Biological Sciences (ICCBS), University of Karachi, Karachi, Pakistan;
3. Organic and Medicinal Unit, Department of Chemistry, University of Ibadan, Oyo State, Nigeria;
4. Dr Panjwani Center for Molecular Medicine and Drug Research, ICCBS, University of Karachi, Karachi, Pakistan;
5. Faculty of Medicine, University of Tabuk (UT), Tabuk, Saudi Arabia