1. Department of Chemistry, Indian Institute of Technology Guwahati, Guwahati 781039, Assam, India
2. Department of Biosciences and Bioengineering, Indian Institute of Technology Guwahati, Guwahati 781039, Assam, India
3. Institute of Organic Chemistry and Biochemistry of the Czech Academy of Sciences, Flemingovo nam. 2, CZ-16610 Prague 6, Czech Republic
4. Department of Medical Biotechnology, Maharshi Dayanand University, Rohtak 124001, Haryana, India
5. Department of NMR, All India Institute of Medical Sciences, Ansari Nagar, 110029 New Delhi, India