Add time:08/18/2019         Source:sciencedirect.com

We developed Wnt/β-catenin inhibitors by identifying 13 number of 3-arylethynyl-substituted pyrido[2,3,-b]pyrazine derivatives that were able to inhibit the Wnt/β-catenin signal pathway and cancer cell proliferation. In the optimization process, a series of 2,3,6-trisubstituted pyrido[2,3,-b]pyrazine core skeletons showed were shown to higher activity than 2,3,6-trisubstituted quinoxaline’s and thus hold promise for use as potential small-molecule inhibitors of the Wnt/β-catenin signal pathway in non-small-cell lung cancer cell (NSCLC) lines. And we have studied the pharmacophore mapping for compound 954, which presented the highest activity with a fit value of 2.81. The pharmacophore mapping for the compounds including 954, pyrido[2,3,-b]pyrazine core had hydrogen-bond acceptor site and hydrophobic center roles.

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