Synthesis and Intramolecular Cyclization of Substituted 4-(Het)aryl-4-oxo-2-thienylaminobut-2-enoic Acids Containing Nitrile Group in the Thiophene Ring
作者:I. A. Gorbunova、D. A. Shipilovskikh、A. E. Rubtsov、S. A. Shipilovskikh
DOI:10.1134/s1070363221090048
日期:2021.9
A method for the synthesis of substituted 4-(het)aryl-4-oxo-2-thienylaminobut-2-enoic acidscontaining a nitrile substituent in the thiophene ring was proposed. Intramolecular cyclization of the obtained compounds in the presence of propionic anhydride leads to the formation of new substituted 3-thienylimino-3H-furan-2-ones.
Synthesis, Intramolecular Cyclization, and Anti-inflammatory Activity of Substituted 2-[2-(4-R-Benzoyl)hydrazinylidene]-4-oxobutanoic Acids
作者:D. V. Lipin、E. I. Denisova、D. A. Shipilovskikh、R. R. Makhmudov、N. M. Igidov、S. A. Shipilovskikh
DOI:10.1134/s1070428022120041
日期:2022.12
Abstract The substrate scope of the procedure for the synthesis of 2-[2-(4-R-benzoyl)hydrazinylidene]-4-oxobutanoic acids was expanded, and their intramolecularcyclization in the presence of propionic anhydride was studied. The synthesized compounds were evaluated for their anti-inflammatory activity and acute toxicity. Some compounds showed a significant anti-inflammatory activity at a level comparable
There have been several recent reports of chemopotentiation via inhibition of DNA repair processes. Flap endonuclease 1 (FEN1) is a key enzyme involved in base excision repair (BER), a primary pathway utilized by mammalian cells to repair DNA damage. In this report, we describe the identification and SAR of a series of 2,4-diketobutyric acid FENI inhibitors. (C) 2004 Elsevier Ltd. All rights reserved.
Salvatori, Gazzetta Chimica Italiana, 1891, vol. 21 II, p. 268