Synthesis and properties of 4-(3-amino-2-benzofuranyl)-coumarins
作者:M. S. Frasinyuk、S. V. Gorelov、S. P. Bondarenko、V. P. Khilya
DOI:10.1007/s10593-010-0417-1
日期:2009.10
The alkylation of o-cyanophenol by 4-chloromethylcoumarins and subsequent intramolecular condensation by the cyano and methylene groups gives substituted 4-(3-amino-2-benzo-furanyl)coumarins. We studied the reactions of these compounds with acylating agents as well as with aldehydes, which lead to the 6H-[1]benzofuro[3,2-b]chromeno[4,3-d]pyridin-6-one system as the result of consecutive transformations
作者:M. S. Frasinyuk、V. I. Vinogradova、S. P. Bondarenko、V. P. Khilya
DOI:10.1007/s10600-007-0198-7
日期:2007.9
New substituted 4-chloromethylcoumarins that were used as alkylating agents to modify cytisine were synthesized by Pechmann condensation. A series of 4-(12-cytisylmethyl)coumarins containing pharmacophores of the natural heterocycles coumarin and cytisine in a single molecule was prepared. The alkylation gave the best results if diisopropylethylamine was used as the base.
derivatives have individual biological activities including anticancer. In this study, we aimed to synthesize coumarin-benzimidazole hybrids in order to investigate their anticancer properties. For this purpose, six 6-substituted-4-chloromethylene coumarin derivatives were synthesized. Sixteen coumarin substituted benzimidazolium chlorides were synthesized by the reaction of 4-chloromethylene coumarin and N-benzylbenzimidazole