1. Department of Chemistry Visva-Bharati (A Central University) Santiniketan 731235 India
2. Department of Organic and Biomolecular Chemistry Chemical Engineering Institute Ural Federal University 19 Mira Street 620002 Yekaterinburg Russian Federation
3. I. Ya. Postovskiy Institute of Organic Synthesis Ural Division of the Russian Academy of Sciences 22 S. Kovalevskoy Street 620219 Yekaterinburg Russian Federation
4. Integrated Science Education and Research Centre Visva-Bharati (A Central University) Santiniketan 731235 India