In silico screening of a c ollection of 1584 academic compounds identified a small molecule hit for the human adenosine A(2A) receptor (pK(i) = 6.2) containing a novel chromene scaffold (3a). To explore the structure activity relationships of this new chemical series for adenosine receptors, a focused library of 43 2H-chromene-3-carboxamide derivatives was synthesized and tested in radioligand binding assays at human adenosine A(1), A(2A), A(2B) and A(3) receptors. The series was found to be enriched with bioactive compounds for adenosine receptors, with 14 molecules showing submicromolar affinity (pK(i) >= 6.0) for at least one adenosine receptor subtype. These results provide evidence that the chromene scaffold, a core structure present in natural products from a wide variety of plants, vegetables, and fruits, constitutes a valuable source for novel therapeutic agents. (C) 2012 Elsevier Masson SAS. All rights reserved.
Synthesis, structure, and antitumor activity of some p-substituted N,N-di (2-chloroethyl) anilines
作者:V. V. Belogorodskii、N. R. Myuller、V. A. Filov、B. A. Ivin
DOI:10.1007/bf00758456
日期:1981.3
antitumor agents among some nitrogen mustard derivatives witb varying lipophylic:hydrophylic properties, some containing the cytotoxic 1,3-dioxane ring [i], we have synthesized some p-substituted N,N-di(2-cbloroethyl)anilines and studied their structure and action on experimental tumors in animals. The synthesis of the substituted amides 4-di(2-chloroetbyl) aminophenyl acetic acid (I-IV) and the amides