1. Technology Development Centre, Custom Pharmaceutical Services, Dr. Reddy’s Laboratories Ltd, Miyapur, Hyderabad 500049, India
2. Department of Chemistry, Krishna University, Machilipatnam 521001, Andhra Pradesh, India
3. Division of Chemistry, Department of Sciences and Humanities, Vignan's Foundation for Science, Technology and Research (Deemed to be University), Vadlamudi, Guntur 522 213, Andhra Pradesh, India