**4. Conclusions**


**Supplementary Materials:** Supplementary materials are available online at http://www.mdpi.com/2079-6412/9/ 8/508/s1, Table S1: Parameters related to the titration, Figure S1: Variations of a portion of 1H NMR spectrum (400 MHz) of MPT 2.8 mM during its titration with β-CD 12 mM in D2O, the molar fractions of host are reported in Table S1, Figure S2: Stacked plot and computational analysis of the DOSY experiment of a sample containing MPT alone. MPT signal decays according to the gradients (G) together with the corresponding graphical analysis of the data. The di ffusion coe fficients are indicated with the letter F, Figure S3. Stacked plot and computational analysis of the DOSY experiment of a sample containing MPT + β-CD. MPT signal decays according to the gradients (G) together with the corresponding graphical analysis of the data. The di ffusion coe fficients are indicated with the letter F, Figure S4: Stacked plot and computational analysis of the DOSY experiment of a sample containing MPT + β-CD. β-CD signal decays according to the gradients (G) together with the corresponding graphical analysis of the data.

**Author Contributions:** Conceptualization and Methodology, C.M., G.F., and A.B.; Formal analysis C.M., G.F., and A.B.; Investigation G.F., G.D.C., C.M., F.Z., and A.B.; Writing—Review and Editing C.M., G.F., C.M., F.Z., and A.B.

**Funding:** This research was carried out in the scope of the B-IMPACT project (project ID 1149) of the M-ERA.NET 2013 call, supported by the national funding organizations of the partners Slovenia (MIZS), Italy (MIUR), and France (RMP).

**Acknowledgments:** The authors also gratefully acknowledge the University of Ferrara for financial support (FAR funds). Thanks are also given to P. Formaglio for NMR spectroscopic experiments and to T. Bernardi for mass spectrometric experiments.

**Conflicts of Interest:** The authors declare no conflict of interest.
