Conclusion AcknowledgementsThe authors would like to thank Dongguk

7). In the metal chelate the peak corresponds to the N-H proton appeared at δ = 7.28 ppm indicating that the NH proton is relatively more acidic than that in free R1. This observation supports our perception (as spelt in the introduction section) that coordination of metal Ezetimibe to the N-atom would increase the acidity of the NH proton and thereby can enhance the H-bond donor property of the receptor.