Abstract
Substituted 4-[(3-cyanopyridin-2-yl)thiomethyl]coumarins have been synthesized by the alkylation of 2-mercapto-4,6-dimethylnicotinonitrile with 4-chloromethylcoumarins. Substituted 4-(3-amino-thieno[2,3- b ]pyridin-2-yl)coumarins have been obtained by a subsequent intramolecular condensation of the methylene and cyano groups. 6 H -Chromeno[4,3- d ]thieno[3,2- b :5,4- b ']dipyridin-6-ones were isolated as a result of the interaction of these compounds with aldehydes, and their aminomethyl derivatives were synthesized. Authors: S. V. Gorelov, S. P. Bondarenko, and M. S. Frasinyuk. English Translation in Chemistry of Heterocyclic Compounds , 2012, 48 (6), pp 955-962 http://link.springer.com/article/10.1007/s10593-012-1083-2
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