1. Department of Chemistry; Faculty of Science; Hamdard University (Jamia Hamdard); New Delhi 110 062 India
2. Department of Pharmaceutical Sciences; College of Pharmacy; Washington State University; Spokane WA 99202 USA
3. Drug Design and Medicinal Chemistry Lab; Department of Pharmaceutical Chemistry; Hamdard University (Jamia Hamdard); New Delhi 110 062 India
4. Department of Chemistry; University of Delhi; New Delhi 110 007 India