A NEW DIRECTION IN THE ALKYLATION OF 5-ACETYL-2-AMINO-6-METHYL-4-PHENYL-4H-PYRAN-3-CARBONITRILE WITH ACTIVE METHYLENE REAGENTS Статья Naghiyev F., Mamedov I., Khrustalev V., Shixaliyev N., Maharramov A. Journal of the Chinese Chemical Society. Chinese Chemical Society Taiwan. 2018.