87307-61-7Relevant academic research and scientific papers
Synthesis of a dysidiolide-inspired compound library and discovery of acetylcholinesterase inhibitors based on protein structure similarity clustering (PSSC)
Scheck, Michael,Koch, Marcus A.,Waldmann, Herbert
, p. 4792 - 4802 (2008/09/21)
Biologically relevant compound collections are a major prerequisite for efficient protein ligand development and ultimately for drug discovery. We herein describe the development of a compound collection inspired by the decalin core motif of two natural products, dysidiolide 1 and sulfiricin 2, both inhibitors of the Cdc25A phosphatase. Several keto-functionalized decalinols were synthesized in solution, immobilized on Merrifield resin equipped with a dihydropyranyl linker, and then subjected to aldol condensation reactions with different aldehydes leading to exocyclic E-configured olefins. Further diversity-increasing transformations on the solid support included Sonogashira, Suzuki, and Heck reactions, Cu-catalyzed conjugate addition and Grignard reactions, alkylation reactions in the α-position to a ketone, Wittig reactions, and reductive animations. In total, 483 compounds were synthesized. Cdc25A and AChE exhibit structural similarity in their ligand-sensing cores and were thus grouped into a protein structure similarity cluster (PSSC). A screen for AChE inhibition of a subset of 162 compounds yielded three micromolar inhibitors of AChE with IC50 values 20 μM.
Organic Reactions at High Pressure. A Robinson Annulation Sequence Initiated by Michael Addition of Activated Cycloalkanones with Hindered Enones
Dauben, William G.,Bunce, Richard A.
, p. 4642 - 4648 (2007/10/02)
Activated cycloalkanones (ring size = five, six, seven) undergo Michael addition to β,β-disubstituted enones and subsequent aldol cyclization at 15 kbar (1.5 GPa) pressure in acetonitrile containing triethylamine or 1,5-diazabicyclonon-5-ene to aff
