An Efficient Synthesis of Pyrido-Imidazodiazepinediones. -The synthesis of optically pure heterocyclic scaffolds (V) (12 examples) is achieved through selective C-acylation of the aminoimidazopyridine (I) with various amino acids and subsequent intramolecular carbonylation. -(ARAMA, D. P.; LISOWSKI, V.; SCARLATA, E.; FULCRAND, P.; MAILLARD, L. T.; MARTINEZ, J.; MASURIER*, N.; Tetrahedron Lett. 54 (2013) 11, 1364-1367, http://dx.
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