The ability of counterion enhanced catalysis to promote the asymmetric functionalization of enones was demonstrated. Combining the use of sterically demanding phosphoric acids with simple chiral diamines allowed for the preparation of simple ion-paired and highly tunable organocatalysts. The latter could be applied in four different asymmetric transformations, providing a highly enantioselective access
Design, Synthesis, and SAR of Potent and Selective Dipeptide-Derived Inhibitors for Dipeptidyl Peptidases
作者:Kristel Senten、Pieter Van der Veken、Ingrid De Meester、Anne-Marie Lambeir、Simon Scharpé、Achiel Haemers、Koen Augustyns
DOI:10.1021/jm0308803
日期:2003.11.1
In this paper we report the systematic search for new, potent, and selective DPP II inhibitors. A study of the structure-activity relationship was conducted starting from aminoacyl pyrrolidides as lead compounds. Rational exploration of the P-1 and P-2 building blocks led to the discovery of some very potent DPP II inhibitors which can be characterized by their high selectivity for DPP II with regard to DPP IV. Dab-Pip and Dab-Pip-2-CN were selected as the most promising inhibitors (IC50 nM range) and will enable us to study the physiological role of DPP II and to differentiate between DPP 11 and DPP IV in biological systems.
Augustyns, K. J. L.; Lambeir, A. M.; Borloo, M., European Journal of Medicinal Chemistry, 1997, vol. 32, # 4, p. 300 - 310
作者:Augustyns, K. J. L.、Lambeir, A. M.、Borloo, M.、Nmeester, I. De、Vedernikova, I.、et al.