30030-91-2

Upstream product

• 1006-94-6 5-methoxylindole 
• 79-04-9 chloroacetyl chloride 
• 2675-89-0 2-chloro-N,N-dimethylacetamide 

Downstream Products

• 123310-20-3 N-Benzyl-N'-[4-(5-methoxy-1H-indol-3-yl)-thiazol-2-yl]-guanidine 
• 396101-55-6 C₂₃H₂₆N₂O₂ 
• 1134099-82-3 2-(4-benzylpiperidin-1-yl)-1-(5-hydroxy-1H-indol-3-yl)ethanone 
• 1347685-38-4 2-(4-benzylpiperazin-1-yl)-1-(5-hydroxy-1H-indol-3-yl)ethanone 
• 1549940-48-8 2-(4-(4-fluorobenzyl)piperidin-1-yl)-1-(5-methoxy-1H-indol-3-yl)ethanone 
• 36246-11-4 4-(5-methoxy-1H-indol-3-yl)thiazol-2-amine 

Relevant academic research and scientific papers

From NMDA receptor antagonists to discovery of selective σ2 receptor ligands

Following previous studies focused on the search for new molecules targeting GluN2B-containing NMDA, a small series of 1-(1H-indol-3-yl)-2-(4- phenylpiperidin-1-yl)ethanone derivatives has been synthesized by using Microwave Assisted Organic Synthesis (MAOS). Given that GluN2B ligands frequently exert off-target effects we also tested their affinity towards sigma receptors. Binding assay revealed that only the 1-(5-hydroxy-1H-indol-3-yl)-2- (4-phenylpiperidin-1-yl)ethanone (7a) retained GluN2B affinity. Interestingly, the 5-methoxyindoles 5a and 6a were efficient and selective ligands toward σ2 receptor (Ki values of 10 nM and 20 nM, respectively). Thus, in this case the discovery of new σ2 receptor selective ligands was an unexpected result emerging from the screening of cross-activity against other CNS receptors.

4-(Indol-3-yl)thiazole-2-amines and 4-ιndol-3-yl)thiazole acylamines as novel antimicrobial agents: Synthesis, in silico and in vitro evaluation

This manuscript deals with the synthesis and computational and experimental evaluation of the antimicrobial activity of twenty-nine 4-(indol-3-yl)thiazole-2-amines and 4-ιndol-3-yl)thiazole acylamines. An evaluation of antibacterial activity against Gram (+) and Gram (?) bacteria revealed that the MIC of indole derivatives is in the range of 0.06–1.88 mg/mL, while among fourteen methylindole derivatives, only six were active, with an MIC in the range of of 0.47–1.88 mg/mL. S. aureus appeared to be the most resistant strain, while S. Typhimurium was the most sensitive. Compound 5x was the most promising, with an MIC in the range of 0.06–0.12 mg/mL, followed by 5d and 5m. An evaluation of these three compounds against resistant strains, namely MRSA P. aeruginosa and E. coli, revealed that they were more potent against MRSA than ampicillin. Furthermore, compounds 5m and 5x were superior inhibitors of biofilm formation, compared to ampicillin and streptomycin, in terms Compounds 5d, 5m, and 5x interact with streptomycin in additive manner. The antifungal activity of some compounds exceeded or was equipotent to those of the reference antifungal agents bifonazole and ketoconazole. The most potent antifungal agent was found to be compound 5g. Drug likeness scores of compounds was in a range of ?0.63 to 0.29, which is moderate to good. According to docking studies, E. coli MurB inhibition is probably responsible for the antibacterial activity of compounds, whereas CYP51 inhibition was implicated in antifungal activity. Compounds appeared to be non-toxic, according to the cytotoxicity assessment in MRC-5 cells.

Structure-guided design of new indoles as negative allosteric modulators (NAMs) of N-methyl-d-aspartate receptor (NMDAR) containing GluN2B subunit

Negative allosteric modulators (NAMs) of GluN2B-containing NMDARs provide pharmacological tools for the treatment of chronic neurodegenerative diseases. Novel NAMs have been designed on the basis of computational studies focused on the 'hit compound' 3. This series of indoles has been tested in competition assay. Compounds 16 and 17 were the most active ligands (IC50 values of 83 nM and 71 nM, respectively) and they showed a potency close to that of reference compounds ifenprodil (1, IC50 = 47 nM) and 3 (IC50 = 25 nM). Furthermore, docking studies have been performed for active ligand 16 and the results were in a good agreement with biological data.

Synthesis, modelling and biological characterization of 3-substituted-1H-indoles as ligands of GluN2B-containing N-methyl-d-aspartate receptors

A three-step synthetic pathway has been employed to synthesize a small library of 2-(4-arylpiperidin-1-yl)-1-(1H-indol-3-yl)ethanone and 2-(4-arylpiperidin-1-yl)-1-(1H-indol-3-yl)ethane-1,2-dione derivatives that have been screened in [3H]ifenp

Synthesis and biological characterization of 3-substituted-1h-indoles as ligands of GluN2B-containing N-methyl-D-aspartate receptors

As an extension of our studies, novel indole derivatives were rationally designed and synthesized as ligands targeted to GluN2B/NMDA receptors. The 2-(4-benzylpiperidin-1-yl)-1-(6-hydroxy-1H-indol-3-yl)ethanone (4i) and 1-(4-benzylpiperidin-1-yl)-2-(6-hydroxy-1H-indol-3-yl)ethane-1,2-dione (6i) showed high binding affinity in [3H]ifenprodil displacement assay. By computational studies, we suggested the hypothetical interactions playing a significant role during the binding process. However, in functional and in vivo studies the most potent compound 4i did not show any activity whereas it displayed relevant affinity toward the σ2 receptor.

Development of 3-substituted-1H-indole derivatives as NR2B/NMDA receptor antagonists

A combined ligand-based and structure-based approach has previously allowed us to identify NR2B/NMDA receptor antagonists containing indole scaffold. In order to further explore the main structure activity relationships of this class of derivatives we herein report the design, synthesis and biological evaluation of new analogues. Some derivatives demonstrated to produce significant anticonvulsant properties and NMDA antagonism. The most active of them (3d) showed NR2B binding affinity equipotent to that of ifenprodil. These results were also corroborated by computational studies.

Syntheses of β,β-difluorotryptamines

Tryptamines disubstituted at the β-position with fluorine have been synthesized as part of our research program to study the effects of fluorine substitution on the biological activities of neuroactive amines. Treatment of N-Boc-3-azidoacetyl indoles, pre

Antiulcer Agents. 4-Substituted 2-Guanidinothiazoles: Reversible, Competitive, and Selective Inhibitors of Gastric H+,K+-ATPase

A series of 4-substituted 2-guanidinothiazoles has been found to inhibit the gastric proton-pump enzyme H+,K+-ATPase.In general, these compounds were reversible inhibitors of canine gastric H+,K+-ATPase, competi