793-19-1

Usage

Uses

Used in Pharmaceutical Industry:
3-[BENZYL-(2-METHOXYCARBONYL-ETHYL)-AMINO]-PROPIONIC ACID METHYL ESTER is used as a key intermediate in the synthesis of substituted Phenyloxazolidinones. These compounds are known for their antimicrobial properties, making them valuable in the development of new drugs to combat microbial infections.
Used in Antimicrobial Applications:
3-[BENZYL-(2-METHOXYCARBONYL-ETHYL)-AMINO]-PROPIONIC ACID METHYL ESTER is used in the preparation of antimicrobial agents, specifically substituted Phenyloxazolidinones. These agents are effective in treating various types of microbial infections, including bacterial and fungal infections, due to their ability to disrupt the cell wall synthesis and other essential cellular processes in microorganisms.

Synthesis

A neat mixture of methyl acrylate 129 (63 ml, 0.70 mol) and BnNH2 130 (25 g, 0.23 mol) was refluxed in the presence of Et3N (65 ml, 0.46 mol) overnight. Excess methyl acrylate was distilled off, the residue was taken in EtOAc and washed with water, brine, dried over anhydrous Na2SO4 and filtered. Solvent removed under reduced pressure. The resultant oil was chromatographed over silica gel using EtOAc-pet ether to furnish Michael adduct 131 as a yellow oil (58.67 g).

Upstream product

• 100-44-7 benzyl chloride 
• 292638-85-8 acrylic acid methyl ester 
• 100-46-9 benzylamine 
• 3395-91-3 Methyl 3-bromopropionate 
• 37488-40-7 benzylamine hydrobromide 
• 141-97-9 ethyl acetoacetate 
• 70-55-3 toluene-4-sulfonamide 
• 110-91-8 morpholine 
• 110-89-4 piperidine 

Downstream Products

• 3939-01-3 methyl 1-benzyl-4-oxopiperidine-3-carboxylate hydrochloride 
• 3612-20-2 1-phenylmethyl-4-piperidone 
• 1254349-18-2 di(N-benzylpiperidin-4-ylidene)hydrazine 
• 1448-40-4 6-benzyl-2-methyl-5,6,7,8-tetrahydropyrido[4,3-d]pyrimidin-4-ol 
• 1807861-48-8 11-benzyl-7-{[4-(trifluoromethyl)phenyl]methyl}-2,5,7,11-tetraazatricyclo[7.4.0.0,^2,6]trideca-1⁽⁹⁾,5-dien-8-one 
• 1616632-77-9 11-benzyl-7-[(2-methylphenyl)methyl]-2,5,7,11-tetraazatricyclo[7.4.0.0^2,6]trideca-1⁽⁹⁾,5-dien-8-one 
• 3518-85-2 methylimine-N,N-dipropionate methyl ester 
• 1346451-86-2 1-[(1-benzyl-4-hydroxypiperidin-4-yl)-methyl]-4-methyl-pyridin-2(1H)-one 
• 1339339-18-2 YL-0911 

Relevant academic research and scientific papers

Design and synthesis of tetrahydropyridopyrimidine derivatives as dual GPR119 and DPP-4 modulators

Based on the approach of merged pharmacophores of GPR119 agonists and DPP-4 inhibitors, a series of tetrahydropyridopyrimidine compounds were designed as dual GPR119 and DPP-4 modulators with hypoglycemic activity. Seven fragments extracted from DPP-4 inhibitors were hybridized with the scaffold of tetrahydropyridopyrimidine. Among them, compound 51 displayed most potent GPR119 agonistic activity (EC50 = 8.7 nM) and good inhibition rate of 74.5% against DPP-4 at 10 μM. Furthermore, the blood glucose AUC0-2h of 51 was reduced to 19.5% in the oral glucose tolerance test (oGTT) at the dose of 30 mg/kg in C57BL/6N mice, which was more potent than that of vildagliptin (16.4%) at the same dose. The docking study of compound 51 with DPP-4 indicated GPR119 agonists could inhibit DPP-4 to serve as dual GPR119 and DPP-4 modulators.

Synthesis and evaluation of novel fused pyrimidine derivatives as GPR119 agonists

A novel series of fused pyrimidine derivatives were designed, synthesized and evaluated as GPR119 agonists. Among them, cyclohexene fused compounds (tetrahydroquinazolines) showed greater GPR119 agonistic activities than did dihydrocyclopentapyrimidine and tetrahydropyridopyrimidine scaffolds. Analogues (16, 19, 26, 28, 42) bearing endo-N-Boc-nortropane amine and fluoro-substituted aniline exhibited better EC50 values (0.27–1.2 μM) though they appeared to be partial agonists.

Cultivation of a Cu/HMPC catalyst from a hyperaccumulating mustard plant for highly efficient and selective coupling reactions under mild conditions

Cu-containing activated carbon (eco-catalyst, Cu/HMPC, where 'C' defines 'carbon') was derived from a metal-hyperaccumulating mustard plant (HMP) by a simple chemical activation method. Transmission electron microscopy/selected area diffraction (HRTEM/SAED) results revealed that the Cu/HMPC has mainly three types of morphology [sheet-like morphology (2D), hollow-spheres (3D) and needle-like structures (1D)] which are interconnected. HRTEM-SAED, Raman and X-ray photoelectron spectroscopy (XPS) results confirmed the existence of Cu oxide species in Cu/HMPC. Content of Cu in Cu/HMPC was determined to be 1.03 wt%. The quality of graphitization in Cu/HMPC was discussed by using Raman and XRD results. The BET surface area of Cu/HMPC was determined to be 620.8 m2 g-1. The Cu/HMPC actively transformed a wide range of amines to imines under very mild reaction conditions. The catalyst Cu/HMPC gave products in excellent yields (98-61%) with very high TON/TOF values (1512/339-833/35 h-1). To the best of our knowledge, this is the most efficient Cu-based heterogeneous eco-catalyst for the synthesis of imines among those reported to date. The Cu can be recovered from used Cu/HMPC by a simple HCl treatment. Versatility, heterogeneity and reusability of Cu/HMPC were tested. A possible mechanism has been proposed.

Ferrocene-containing Impiridone (ONC201) Hybrids: Synthesis, DFT modelling, in vitro evaluation, and structure–activity relationships

Inspired by the well-established clinical evidence about the interplay between apoptotic TRAIL (tumour necrosis factor-related apoptosis-inducing ligand) mechanism and reactive oxygen species (ROS)-mediated oxidative stress, a set of novel ONC201 hybrids containing the impiridone core and one or two differently positioned ferrocenylalkyl groups were synthesised in our present work. These two types of residues have been implicated in the aforementioned mechanisms associated with cytotoxic activity. A straightforward, primary amine-based synthetic approach was used allowing the introduction of a variety of N-substituents into the two opposite regions of the heterocyclic skeleton. Reference model compounds with benzyl and halogenated benzyl groups were also synthesised and tested. The in vitro assays of the novel impiridones on five malignant cell lines disclosed characteristic structure-activity relationship (SAR) featuring significant substituent-dependent activity and cell-selectivity. A possible contribution of ROS-mechanism to the cytotoxicity of the novel metallocenes was suggested by density functional theory (DFT)studies on simplified models. Accordingly, unlike the mono-ferrocenylalkyl-substituted products, the compounds containing two ferrocenylalkyl substituents in the opposite regions of the impiridone core display a much more pronounced long-term cytotoxic effect against A-2058 cell line than do the organic impiridones including ONC201 and ONC212. Furthermore, the prepared bis-metallocene derivatives also present substantial activity against COLO-205- and EBC-1 cell lines.

SUBSTITUTED PHENYLOXAZOLIDINONES FOR ANTIMICROBIAL THERAPY

The present invention relates to novel oxazolidinones (Formula I): or a pharmaceutically acceptable salt having ring A characterized by N-containing monocyclic, bicyclic or spirocyclic substituents, to their preparation, and to their use as drugs for treating Mycobacterium tuberculosis and other microbial infections, either alone or in combination with other anti-infective treatments.

New Dendrimer-Based Nanoparticles Enhance Curcumin Solubility

Curcumin, the main curcuminoid of the popular Indian spice turmeric, is a potent chemopreventive agent and useful in many different diseases. A major limitation of applicability of curcumin as a health promoting and medicinal agent is its extremely low bioavailability due to efficient first pass metabolism, poor gastrointestinal absorption, rapid elimination, and poor aqueous solubility. In the present study, nanotechnology was selected as a choice approach to enhance the bioavailability of the curcuminis. A new polyamidoamine dendrimer (G0.5) was synthesized, characterized, and tested for cytotoxicity in human breast cancer cells (MCF-7). No cytotoxicity of G0.5 was found in the range between 10?3 and 3 × 10?8 M. Consequently, G0.5 was used to prepare spherical nanoparticles of ca. 150 nm, which were loaded with curcumin [molar ratio G0.5/curcumin 1 : 1 (formulation 1) and 1 : 0.5 (formulation 2)]. Remarkably, the occurrence of a single population of nanoparticles having an excellent polydispersity index ( 0.20) was found in both formulations. Formulation 1 was selected to test in vitro drug release because it was superior in terms of encapsulation efficiency (62 %) and loading capacity (32 %). The solubility of curcumin was increased ca. 415 and 150 times with respect to the unformulated drug, respectively, for formulation 1 and formulation 2. The release of curcumin from the nanoparticles showed an interesting prolonged and sustained release profile.

RECYCLABLE CATALYSTS FOR CHLORINATION OF ORGANIC ACIDS AND ALCOHOLS

The present invention discloses recyclable polymeric catalyst of Formula I, for chlorination of organic acids and alcohols using chlorinating agents such as carbonyl chloride, oxalyl chloride or thionyl chloride, wherein, ‘m’ on the pendent groups on polystyrene backbone can have values from 1 to 5 and R is the alkyl group ranging from C1 to C5.

Penfluridol preparation method

The invention discloses a penfluridol preparation method. The penfluridol preparation method includes the following steps of 1), subjecting succinic anhydride and fluorobenzene to Friedel-Crafts reaction prior to acid decomposition, and collecting a compound from the formula 2) as is shown in the description; 2), putting the compound in a solvent to collect a compound in formula 3) as is shown in the description in a solvent reduced through a reducing agent; 3), putting the compound into the fluorobenzene to perform the Friedel-Crafts reaction to collect a compound in the formula 4) as is shown in the description; subjecting the compound and ethyl chloroformate to action to generate a compound in formula 5) as is shown in the description; 5), subjecting the compound and a compound shown in formula (XVII) to reaction prior to hydrolyzation to collect a compound in formula 6) as is shown in the description; 6), performing reduction with the reducing agent prior to hydrolyzing a reduction product and then collecting penfluridol (I). The penfluridol preparation method is high in yield, low in cost, moderate in reaction condition, short in circuit, proper for industrial production, low in three wastes, easy to treat and suitable for industrial production.

Thermodynamically controlled chemoselectivity in lipase-catalyzed aza-Michael additions

Chemoselective synthesis of N-protected β-amino esters involving lipase-catalyzed aza-Michael additions and α,β-unsaturated precursors is mainly hampered by the two electrophilic sites present on these compounds. In order to control the chemoselectivity a solvent engineering strategy based on the thermodynamic behaviour of products in media of different polarity was designed. This strategy allowed to obtain aza-Michael adducts from benzylamine and different acrylates with high selectivity. In almost all reactions carried out in n-hexane, a non-polar solvent, aminolysis was avoided while the corresponding Michael adducts were exclusively synthesized in 53-78% yields. On the contrary, in reactions carried out in a polar solvent such as 2-methyl-2-butanol the aminolysis products were favoured. Thermodynamic analyses of these processes using the COSMO-RS method helped to understand some of the key factors affecting chemoselectivity and confirmed that a reliable estimation of the thermodynamic interactions of solutes and solvents allows an adequate selection of a reaction media that may lead to chemoselectivity.

Selective N-alkylation of primary amines with R-NH2·HBr and alkyl bromides using a competitive deprotonation/protonation strategy

Monoalkylation of primary amines using amine hydrobromides and alkyl bromides has been carried out. Under controlled reaction conditions the reactant primary amine was selectively deprotonated and made available for reaction, while the newly generated secondary amine remained protonated, and did not participate in alkylation further. Reaction was carried out under mild reaction conditions and was applicable to a wide range of primary amines and alkyl bromides.