1. Natural Product Chemistry Group, Chemical Sciences and Technology Division, CSIR-North East Institute of Science and Technology, Jorhat, Assam, India.
2. Department of Chemistry, Maharishi Markandeshwar (Deemed to be University), Mullana, Haryana, India.
3. Department of Pharmaceutical Chemistry, ISF College of Pharmacy, Moga, Punjab, India.
4. Department of Pharmaceutical Sciences, HNB Garhwal University, Srinagar, Garhwal, Uttarakhand, India.