GaCl3 catalyzed the cascade Michael/ketalization of o-hydroxychalcones with indoline-2-thiones: For the construction of indole-annulated 2-oxa-8-thiabicyclo[3.3.1]nonane derivatives
Based on hit-likeness and chemical diversity, a number of chalcones and chalcone-mimetic compounds were selected as putative Notch inhibitors. The evaluation of the antiproliferative effect combined with the inhibition of Notchl expression in KOPTK1 cell line identified compound 18, featuring a tetrahydronaphthalene-based scaffold, as a new promising Notch-blocking agent.