224961-34-6

SB 235375 is a potent and selective neurokinin-3 receptor antagonist . It is a low central nervous system-penetrant.

SB 235375 is a potent and selective antagonist of the human neurokinin-3 (hNK-3) receptor designed by optimizing the structure of 2-phenyl-4-quinolinecarboxylic acid amide. SB 235375 displays high affinity for the hNK-3 receptor, with significantly higher binding affinities than hNK-2 and hNK-1 receptors. In vitro studies demonstrated its ability to block NK-3 receptor-mediated contraction and calcium mobilization, while in vivo, SB 223412 demonstrated oral and intravenous activity against NK-3 receptor-driven responses in animal models[1].

[1] Giardina GA, et al. Discovery of a novel class of selective non-peptide antagonists for the human neurokinin-3 receptor. 2. Identification of (S)-N-(1-phenylpropyl)-3-hydroxy-2-phenylquinoline-4-carboxamide (SB 223412). J Med Chem. 1999 Mar 25;42(6):1053-65. DOI:10.1021/jm980633c