               Wouter Debrouwer, † Dietmar Hertsen, ‡ Thomas S.A. Heugebaert, † Esma Birsen Boydas, § Veronique Van Speybroeck, ‡ Saron Catak ‡§ * and Christian V. Stevens † * † SynBioC Research Group, Department of Sustainable Organic Chemistry and Technology, Faculty of Bioscience Engineering, Ghent University, Coupure Links 653, 9000 Ghent, Belgium. E4mail: Chris.Stevens@ugent.be ‡ Center for Molecular Modeling, Ghent University, Technologiepark 903, 9052 Zwijnaarde, Belgium. § Bogazici University, Department of Chemistry, Bebek, Istanbul, 34342 Turkey. E4mail: Saron.Catak@boun.edu.tr Computational details  Copies of NMR4spectra 