Уважаемые коллеги! Скачайте, пожалуйста, 3 статьи:
1) Helmut Dorn, Rüdiger Ozegowski. Eindeutige Synthese des 4,7-Dihydro-4-oxo-1 H-pyrazolo[3,4-b]pyridins – Bemerkungen zur „(N[BOND]C)-Umlagerung” von (2-Alkoxycarbonyl-vinyl-amino)pyrazolen. Journal für Praktische Chemie, 1982, Volume 324, Issue 4, pages 557–562.
2) Maria A. Gaston, Luiza Rosaria S. Dias, Antonio Carlos C. Freitas, Ana Luisa P. Miranda and Eliezer J. Barreiro. Synthesis and analgesic properties of new 4-arylhydrazone 1-H pyrazole [3,4-b] pyridine derivatives. Pharmaceutica Acta Helvetiae, 1996, Volume 71, Issue 3, August 1996, pages 213-219.
Код: Выделить всё
http://dx.doi.org/10.1016/0031-6865(96)00012-X
3) Hariharan Venkatesan, Frances M. Hocutt, Todd K. Jones and Michael H. Rabinowitz. A One-Step Synthesis of 2,4-Unsubstituted Quinoline-3-carboxylic Acid Esters from o-Nitrobenzaldehydes. J. Org. Chem., 2010, 75 (10), pp. 3488–3491.
Заранее большое спасибо!!!