1. Organic and Bioorganic Chemistry Laboratory, CSIR-CLRI, Adyar, Chennai-600020, Tamil Nadu, India
2. Department of Chemistry, Sethu Institute of Technology, Kariapatti, Virudunagar-626115, Tamil Nadu, India
3. Centre for GMP Extraction Facility (Dept. of Biotechnology), National Institute of Pharmaceutical Education and Research, Guwahati-781101, Assam, India