SB 204741 is a potent, selective SR-2B antagonist.
ChEBI: 1-(1-methylindol-5-yl)-3-(3-methyl-1,2-thiazol-5-yl)urea is a member of ther class of ureas that is urea in which a hydrogen attached to one of the nitrogens has been replaced by an N-methylindol-5-yl group, while a hydrogen attached to the other nitrogen has been replaced by a 3-methyl-1,2-thiazol-5-yl group. It is a potent and selective antagonist for the 5-hydroxytryptamine 2B (5-HT2B) receptor. It has a role as a receptor modulator and a serotonergic antagonist. It is a member of ureas, a member of indoles and a member of 1,2-thiazoles.
Potent and selective 5-HT 2B receptor antagonist (pA 2 = 7.95). Displays ≥ 135-fold selectivity over 5-HT 2C (pK i = 5.82), 5-HT 2A (pK i < 5.2), 5-HT 1A , 1D , 1E , 5-HT 3 and 5-HT 4 receptors.
