SB 218795 is an NK3 receptor antagonist.
ChEBI: (2R)-2-[[oxo-(2-phenyl-4-quinolinyl)methyl]amino]-2-phenylacetic acid methyl ester is a member of quinolines.
Potent, selective and competitive non-peptide NK 3 receptor antagonist (K i = 13 nM at hNK 3 ). Displays 90-fold and 7000-fold selectivity over hNK 2 and hNK 1 receptors respectively. Active in vivo , inhibiting agonist-induced pupillary constriction.
SB 218795 (0.25-1 mg/kg; i.v.) inhibits Senktide-induced miosis in rabbits by the maximum inhibition of 78%[2].
hNK3: 13 nM (Ki); hNK2: 1220 nM (Ki)