phases of drug discovery. Bis-spirocyclic frameworks occur in natural products and other biologically relevant metabolites and show attractive features, such as molecular compactness, structural complexity, and three-dimensional character. A concise approach to the synthesis of bis-spirocyclic-based compoundlibraries starting from readily available commercial reagents and robust chemical transformations
Primary cycloalkylimines with a 4 to 8-membered ring were synthesized by dehydrocyanation of the corresponding α-aminonitriles on solid potassium hydroxide via a vacuum gas–solid reaction. Imine–enaminetautomerism has been demonstrated at room temperature for the most kinetically stable derivatives.
Discovery of triazines as potent, selective and orally active PDE4 inhibitors
作者:Rainer Gewald、Christian Grunwald、Ute Egerland
DOI:10.1016/j.bmcl.2013.05.099
日期:2013.8
Expanding on HTS hit 4 afforded a series of [1,3,5]triazine derivatives as novel PDE4 inhibitors. The SAR development and optimization process with the emphasis on ligand efficiency and physicochemical properties led to the discovery of compound 44 as a potent, selective and orallyactive PDE4 inhibitor.
Photoreactive fused aziridinylpiperazines on the background of 4-substituted chalcones and their benzimidazolic analogs
作者:Volodymyr M. Kotlyar、Oleksii O. Kolomoitsev、Dmytro V. Nikolaievskyi、Polina I. Pedan、Andrii Yu Chumak、Valery D. Orlov、Svitlana V. Shishkina、Andrey O. Doroshenko
DOI:10.1016/j.molstruc.2018.12.015
日期:2019.3
Abstract The reaction of bromo-substituted chalcones with various diamino-compounds leads to the fused heterocyclic products, aziridinylpiperazines, exhibiting photoreactivity in the crystalline state. Crystals of 4-nitrosubstituted compounds of this family change their color from yellowish to deep violet-blue, 4-cyanosubstituted ones – from yellowish to pink at UV irradiation. Discussion on the mechanism