1. Department of Biosciences; Jamia Millia Islamia; Medicinal Chemistry Laboratory, Jamia Nagar; New Delhi 110025 India
2. Department of Chemistry; Jamia Millia Islamia, Jamia Nagar; New Delhi 110025 India
3. Department of Biosciences; Jamia Millia Islamia; Genome Biology Laboratory, Jamia Nagar; New Delhi 110025 India
4. Eppley Institute for Research in Cancer and Allied Diseases; University of Nebraska Medical Center; Omaha, NE 68198-6805 USA