1. Organic & Bioorganic Chemistry, CSIR-Central Leather Research Institute, Adyar, Chennai 600020, India
2. Department of Chemistry, Indian Institute of Technology, Hyderabad 502 285, India
3. Department of Physical Chemistry, Madurai Kamaraj University, Madurai 625 021, India
4. Faculty of Pharmaceutical Sciences, Tokyo University of Science, 2641 Yamazaki, Noda 278-8510, Japan
5. CSIR-North East Institute of Science & Technology (NEIST), Branch Laboratory, Imphal-795004, Manipur, India