3-Formylchromones, Acylpyruvates,
and Chalcone as Valuable Substrates for the Syntheses of Fused Pyridines
Viktor O. Iaroshenko*a,b, Satenik Mkrtchyanb, Dmitriy M. Volochnyuka,c, Peter Langer*b, Vyacheslav Ya. Sosnovskikh*d, Dmytro Ostrovskyia, Sergii Dudkinb, Anton V. Kotljarove, Mariia Miliutinaf, Iryna Savychf, Andrei A. Tolmacheva,c a National Taras Shevchenko University, 62 Volodymyrska St., Kyiv-33, 01033, Ukraine b Institut für Chemie, Universität Rostock, Albert-Einstein-Str.
3a, 18059 Rostock, Germany Fax: +49(381)4986412; e-Mail: viktor.iaroshenko@uni-rostock.de; e-Mail: iva108@gmail.com; c Enamine Ltd., 23 A. Matrosova
st., 01103 Kyiv, Ukraine d Department of Chemistry, Ural
State University, 51 Lenina Ave., 620083 Ekaterinburg,
Russian Federation e-Mail: vyacheslav.sosnovskikh@usu.ru; e Institute of Organic and Bioorganic Chemistry, University of Tartu, Jakobi 2, 51014 Tartu,
Estonia f Organic Chemistry Department, National Kharkiv V. N. Karazin University, sq. Svobody
4, Kharkiv-77, 61077, Ukraine