4-hydroxy-2-quinolones. 200. Bromination of 1-R-4-hydroxy-2-oxo-1,2-dihydroquinoline-3-carboxylic acid pyridinylmethylene hydrazides
/I. V. Ukrainets, E. V. Mospanova, O. V. Gorokhova and S. V. Shishkina
// Chemistry of Heterocyclic Compounds
Volume 47, Issue 8 (2011), Page 1014
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http://dx.doi.org/10.1007/s10593-011-0868-z