1. PharmaCenter Bonn, Pharmaceutical Institute,
Pharmaceutical Chemistry I, An der Immenburg
4, 53121 Bonn, Germany
2. Department of Pharmaceutical Chemistry,
Faculty of Pharmacy, Salman Bin Abdulaziz University, 11942 Al-Kharj, Saudi Arabia
3. Fraunhofer Institute for Algorithms and Scientific Computing SCAI, Schloss
Birlinghoven, 53754 Sankt Augustin, Germany