1. School of Pharmacy & Biomolecular Sciences, Liverpool John Moores University, Byrom Street, Liverpool L3 3AF, United Kingdom
2. School
of Pharmacy, University of Wolverhampton, Wulfruna Street, Wolverhampton WV1 1LY, United Kingdom
3. Department
of Chemistry, University of Florida, Gainsville, Florida 32611-7200, United States
4. Institute
of Chemistry, University of Tartu, 50411 Tartu, Estonia