IMD-0354

IMD-0354 is a selective IKKβ inhibitor which inhibits NF-κB activity. IMD0354 inhibits TNF-α induced NF-κB transcription activity with an IC 50 of 1.2±0.3 uM.

N-[3,5-bis(trifluoromethyl)phenyl]-5-chloro-2-hydroxybenzamide is a member of benzamides.

A mixture of 5-chlorosalicylic acid(6.90g, 40mmol), 3, 5-bis(trifluoromethyl)aniline(9.16g, 40mmol), phosphorus trichloride(1.74mL, 20mmol) and toluene(80mL) was refluxed for 3 hours under argon atmosphere. After the reaction mixture was cooled to room temperature, it was diluted with ethyl acetate(240mL). After the ethyl acetate layer was washed successively with water and brine, dried over anhydrous magnesium sulfate, the residue obtained by evaporation of the solvent under reduced pressure was purified by column chromatography on silica gel(n-hexane:ethyl acetate=4:1) to give the title compound(13.12g, 85.5percent) as a light yellow solid.1H-NMR(DMSO-d6): δ 7.05(1H, d, J=8.7Hz), 7.49(1H, dd, J=8.7, 2.7Hz), 7.85(1H, s), 7.87(1H, d, J=2.7Hz), 8.45(2H, s), 10.85(1H, s), 11.39(1H, s).General procedure: All salicylanilides(1a-8d) were synthesized via a previously described microwave assisted (MicroSYNTH Milestone) method.25 Briefly, the appropriately substituted salicylic acid (1 eq) and the substituted aniline (1 eq) were suspended or dissolved in chlorobenzene(1 mL/0.15 mmol of acid). Phosphorus trichloride (PClTo 30 ml and of toluene were added 5-chlorosalicylic acid (862 mg, 5 mmol), 3, 5-bis(trifluoromethyl)aniline (1.37 g, 6 mmol), and phosphoroustrichloride (755 mg, 5.5 mmol) in the presence of argon gas, followed by stirring for 6 hours through heat-reflux. General procedure: The salicylic acid (1.2 equiv) was added to a mixture of toluene (0.3 M), aniline (1.0 equiv), phosphorus trichloride (1.1 equiv), and pyridine (0.05 equiv) in a Radley’s Carousel reaction tube (modified from Itai et al.Phosphorus trichloride (0.13ml, 1.5mmol) was added to a stirred solution of 3, 5-bis(trifluoromethyl)aniline (0.47ml, 3mmol), a catalytic amount of pyridine and 5-chloro salicylic acid (621.3mg, 3.6mmol) in anhydrous toluene (10ml) in in a Radley’s Carousel reaction tube under an argon atmosphere. After the reaction mixture was refluxed for overnight, it was cooled to room temperature and aq. sodium bicarbonate was added dropwise until PH=6 - 7. After extracting with ethyl acetate, the organic layers was dried, dried (MgSOGeneral procedure: A dry, 50 mL round bottom flask was charged with a magnetic stir bar then sealed with a septum and flushed with nitrogen. To this was added the salicylic acid derivative (2.0 mmol) and dichloromethane (10 mL). While stirring, SOCl2 (10 mmol) was added dropwise, followed by dimethylformamide (0.05 mmol), and the mixture was allowed to stir at room temperature under nitrogen for 12 hours. At this point, the mixture was concentrated under vacuum to afford the solid acid chloride derivative which was used immediately without further purification. The flask containing the acid chloride was then re-sealed with a septum and placed under a nitrogen atmosphere, and its contents were re-suspended in fresh dichloromethane (20 mL). While stirring, the aniline derivative (4.0 mmol) was added and the resulting opaque mixture was stirred for an additional 18 h. At this point, the mixture was quenched with ice water (5 mL) and phases were separated using a separatory funnel. The aqueous layer was extracted twice with dichloromethane (20 mL) then the organic layers were combined and washed with brine (40 mL). The organic layer was then dried over Na2SO4, filtered, and concentrated under vacuum to afford a crude solid residue. This residue was then re-suspended in dichloromethane (10 mL) and adsorbed onto silica gel (1 g), then chromatographed on a 12 g silica gel column using a solvent gradient of 0-40% ethyl acetate in hexanes over 25 min. The product-containing fractions were combined then concentrated under vacuum to afford the purified salicylamide derivative.

IMD 0354 is an IKKβ (IKK2) inhibitor that blocks NF-κB phosphorylation (IC50 = ~250 nM) and subsequent NF-κB p65 nuclear translocation. It exhibits cardioprotective properties by decreasing expression of P-selectin and ICAM-1 in the vasculature and blocking cardiomyocyte IL-1β and MCP-1 production, resulting in suppressed neutrophil accumulation in a rat model of ischemia/reperfusion injury. IMD 0354, suppresses the growth of human breast cancer cells by inducing cell cycle arrest and apoptosis. It induces apoptosis of chronic lymphocytic leukemia cells at 1-10 μM by directly targeting the NF-κB pathway, decreasing expression of anti-apoptotic genes and increasing expression of proapoptotic genes.

Molecular Weight:383.67
XLogP3:6.2
Hydrogen Bond Donor Count:2
Hydrogen Bond Acceptor Count:8
Rotatable Bond Count:2
Exact Mass:383.0147752
Monoisotopic Mass:383.0147752
Topological Polar Surface Area:49.3
Heavy Atom Count:25
Complexity:462
Covalently-Bonded Unit Count:1
Compound Is Canonicalized:Yes