1. Laboratory of Aquatic and Terrestrial Ecosystems, Org. and Bio-org. Chem. Group, University of Mohamed-Cherif Messaadia, Souk Ahras, Algeria;
2. Laboratory of Molecular and Thio-Organic Chemistry, UMR CNRS 6507, INC3M, FR 3038, Labex EMC3, ensicaen & University of Caen, Caen, France