1. Center for Heterocyclic Compounds, Department of Chemistry, University of Florida, Gainesville, Florida 32611, Faculty of Pharmacy, University of Medicine and Pharmacy Timisoara, 2 Eftimie Murgu, Timisoara 1900, Romania, Department of Chemistry, Tallinn University of Technology, Ehitajate tee 5, Tallinn 19086, Estonia, Faculté de Chimie, 4, rue B. Pascal, Strasbourg 67000, France, Institute of Physical Chemistry, Russian Academy of Sciences, Leninskii Prosp 31, 119991, Moscow, Russia, and Department of...