Biological Activity: | Non-peptide gastrin-releasing peptide receptor (GRP-R, BB 2 ) and neuromedin B receptor (NMB-R, BB 1 ) antagonist (K i values are 0.17 and 1.0 nM for BB 1 and BB 2 respectively). Inhibits proliferation of rat C6 glioma cells (IC 50 = 2 μ M) and inhibits NCI-H1299 xenograft proliferation in nude mice (IC 50 = 5 μ M). |