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Discovery of 6-(Aminomethyl)-5-(2,4-dichlorophenyl)-7-methylimidazo[1,2-a]pyrimidine-2-carboxa mides as Potent, Selective Dipeptidyl Peptidase-4 (DPP4) Inhibitors
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O'Connor SP, Wang Y, Simpkins LM, Brigance RP, Meng W, Wang A, Kirby MS, Weigelt CA, Hamann LG (2010)
Synthesis, SAR, and atropisomerism of imidazolopyrimidine DPP4 inhibitors
Bioorganic & Medicinal Chemistry Lett 20: 6273