Characterization of the Two Fundamental Conformations of Benzoylureas and Elucidation of the Factors That Facilitate Their Conformational Interchange
作者:Guillaume Lessene、Brian J. Smith、Robert W. Gable、Jonathan B. Baell
DOI:10.1021/jo900871a
日期:2009.9.4
The ability of the benzoylurea core to mimicαhelices relies on its ability to form an intramolecular hydrogen bond. The conformational behavior of benzoylureas is investigated in depth in this study via the use of NMR, IR, X-ray, and computational analysis. The results show that the closed conformation maintained by an intramolecular hydrogen bond is favored in most of the cases studied except when