title: Design, synthesis, and biological evaluation of novel 2-pyridinyl-[1,2,4]triazoles as inhibitors of transforming growth factor beta1 type 1 receptor.
abstract: A series of 2-pyridinyl-[1,2,4]triazoles have been synthesized and evaluated for their ALK5 inhibitory activity in the luciferase reporter assays. Compound 12b showed significant ALK5 inhibition (SBE-Luciferase, 73%; p3TP-Luciferase, 85%) at a concentration of 5 microM that is comparable to that of SB-431542 (SBE-Luciferase, 79%; p3TP-Luciferase, 88%), but weak p38 alpha MAP kinase inhibition (4%) at a concentration of 10 microM that is much lower than that of SB-431542 (54%). The binding mode of 12b generated by flexible docking studies revealed that the structure of 12b is a good fit into the (NPC-30345)-binding cavity of ALK5.
authors.affiliation: College of Pharmacy, Ewha Womans University, 11-1 Daehyun-dong, Seodaemun-gu, Seoul 120-750, South Korea. dkkim@ewha.ac.kr
authors.forename: Dae-Kee
authors.initials: DK
authors.lastname: Kim
authors.forename: Joonseop
authors.initials: J
authors.lastname: Kim
authors.forename: Hyun-Ju
authors.initials: HJ
authors.lastname: Park
mesh_terms: D009682:Magnetic Resonance Spectroscopy; D008958:Models, Molecular; D018125:Receptors, Transforming Growth Factor beta / Q000037:antagonists & inhibitors*; D021241:Spectrometry, Mass, Electrospray Ionization; D014230:Triazoles / Q000138:chemical synthesis* / Q000737:chemistry / Q000494:pharmacology*
chemical_list: D018125:Receptors, Transforming Growth Factor beta; D014230:Triazoles