为了获得有效的蛋白酪氨酸激酶抑制剂,一种新颖而通用的合成杂环化合物4a-d和5a-c的方法,该化合物包括2-亚氨基-2 H --1-苯并吡喃,四氢苯并[ b ]噻吩和羧酰胺/ 1 H已经开发了-苯并咪唑片段。该方法基于2-亚氨基-2 H -1-苯并吡喃1a,b和2与2-氨基-4,5,6,7-四氢苯并[ b ]噻吩3a–c在冰醋酸中的反应。此外,具有四氢苯并[4,5]噻吩并[2,3- d ]的新杂环8a,b]嘧啶和香豆素结构部分已经合成通过相应的2-重排(四氢苯并[ b ]噻吩-2-基)亚氨基-2- ħ -1-苯并吡喃-3-羧酰胺4A,4B。
Synthesis and antimicrobial evaluation of 3-(4-arylthieno[2,3-<i>d</i>]pyrimidin-2-yl)- 2<i>H</i>-chromen-2-ones
作者:Sergiy V. Vlasov、Sergiy M. Kovalenko、Pavlo E. Shynkarenko、Konstantin Yu. Krolenko、Vitaliy S. Vlasov
DOI:10.1515/hc-2018-0013
日期:2018.8.28
Abstract Syntheses of 3-(4-arylthieno[2,3-d]pyrimidin-2-yl)-2H-chromen-2-ones 5 by the reaction of 2-iminocoumarin-3-carboxamides 1 with (2-aminothiophen-3-yl)(aryl)methanones 2 and by the alternative Suzuki coupling of 4-chlorothieno[2,3-d]pyrimidin-2-yl-2H-chromen-2-one 7 with arylboronic acids were developed. Compound 5d showed higher antimicrobialactivity against Staphylococcus aureus than the
Recyclization of 2-Imino-2<i>H</i>-1-benzopyrans with Nucleophilic Reagents - Reaction of 2-Iminocoumarin-3-carboxamides with 2-Aminothiophene-3-carboxamides
作者:Sergiy M. Kovalenko、Sergiy V. Vlasov、Valentin P. Chernykh
DOI:10.1055/s-2006-926333
日期:——
In the course of our research on the synthesis of coumarins, the interaction of 2-iminocoumarin-3-carboxamides with a series of 2-aminothiophene-3-carboxamides was studied. It was established that the initial products - 2-substituted coumarin-3-carboxamides - can undergo rearrangement to 2-(coumarin-3-yl)thieno[2,3-d]pyrimidin-4-ones by refluxing in DMF.
2-Alkyl-5-imino-1-benzopyrano[3,4-c]pyridin-4(3H,5H)-ones and related compounds from reaction of 3-carbamoyl-2-iminochromens with methyl ketones
作者:Conor N. O'Callaghan
DOI:10.1039/p19810002273
日期:——
The base-catalysed condensation of 3-carbamoyl-2-iminochromens with methylketones yields 2-alkyl-5-imino-1-benzopyrano[3,4-c]pyridin-4(3H,5H)-ones, 2-alkyl-1-benzopyrano[3,4-c]pyridin-4(3H),5-diones, and 3-cyano-4-(2-hydroxyphenyl)-6-methyl-3,4-dihydropyridin-2-ones (which exist in two tautomeric forms).
3-氨基甲酰基-2-亚氨基色氨酸与甲基酮的碱催化缩合反应生成2-烷基-5-亚氨基-1-苯并吡喃并[3,4- c ]吡啶-4(3 H,5 H)-ones,2-烷基-1-苯并吡喃并[3,4- c ]吡啶-4(3 H),5-二酮和3-氰基-4-(2-羟基苯基)-6-甲基-3,4-二氢吡啶-2-酮(以两种互变异构形式存在)。
Synthesis of 5-methyl-4-oxo-2-(coumarin-3-yl)-N-aryl-3,4-dihydrothieno[2,3-d]-pyrimidine-6-carboxamides
作者:Sergiy M. Kovalenko、Sergiy V. Vlasov、Valentin P. Chernykh
DOI:10.1002/hc.20303
日期:2007.5
Possible approaches to synthesis of 5-methyl-4-oxo-2-(coumarin-3-yl)-N-aryl-3,4-dihydrothieno[2,3-d]pyrimidine-6-carboxamides 4 have been discussed. It is shown that the preferable approach is cyclization of 2-iminocoumarin-3-carboxamides 1, utilizing 5-amino-3-methyl-N2-arylthiophene-2,4-dicarboxamides 2 as binucleophilic reagents. The proposed procedure allowed us to easily obtain 4 in two stages