1. Department of Chemistry, Saurashtra University, Rajkot-360005, India
2. Department of Pharmaceutical Chemistry, Shri Vile Parle Kelavani Mandal's Institute of Pharmacy, Dhule-424001, India
3. Faculty of Science, T.N. Rao College, Rajkot-360005, India
4. Gujarat Vidhyapith, Ashram Road, Ahmedabad-380014, India