5678-45-5

Usage

Chemical Properties

white to beige crystalline powder

Upstream product

• 141-82-2 malonic acid 
• 123-11-5 4-methoxy-benzaldehyde 
• 830-09-1 3-(4'-methoxyphenyl)propenoic acid 
• 119208-80-9 1,3,5-tris(4-methoxyphenyl)-2,4-diazapenta-1,4-diene 
• 832-01-9 methyl p-methoxycinnamate 
• 72071-68-2 3-Hydroxyamino-3-(4-methoxy-phenyl)-propionic acid 
• 21405-61-8 2-(4-methoxybenzylidene)malonic acid 
• 123-08-0 4-hydroxy-benzaldehyde 
• 221907-01-3 (Z)-2-(4,5-dihydro-1,3-oxazol-2-yl)-1-(4-methoxyphenyl)-1-ethen-1-amine 
• 155496-02-9 tert-butyl 3-(anthracene-9-sulfonamido)-3-(4-methoxyphenyl)propanoate 

Downstream Products

• 6049-54-3 3-amino-3-(4-hydroxyphenyl)propionic acid 
• 101878-30-2 3-benzamido-3-(4-methoxyphenyl)propanoic acid 
• 124082-17-3 3-amino-3-(4-methoxyphenyl)propionic acid methyl ester hydrochloride 
• 96363-20-1 D,L-3-<<(1,1-dimethylethoxy)carbonyl>amino>-3-(4-methoxyphenyl)propanoic acid 
• 117291-24-4 3-(4-Methoxy-phenyl)-3-(2,2,2-trifluoro-acetylamino)-propionic acid 
• 171002-20-3 β-(N-phenylacetylamino)-β-(4-methoxyphenyl)propionic acid 
• 83256-47-7 3-(1,3-dioxoisoindolin-2-yl)-3-(4-methoxyphenyl)propanoic acid 
• 511237-53-9 3-(4-methoxy-phenyl)-3-ureido-propionic acid 
• 167887-24-3 3-(4',5'-dichlorophthalimido)-3-(4'-methoxyphenyl)propionic acid 
• 284492-02-0 3-[N-(9H-fluoren-9-ylmethoxycarbonyl)-amino]-3-(4-methoxy)-phenylpropionic acid 
• 404869-81-4 3-(4-methoxyphenyl)-3-(pyrrol-1-yl)propanoic acid 
• 131791-82-7 3-amino-3-(4-methoxyphenyl)propionic acid methyl ester 
• 167887-35-6 3-amino-3-(4-methoxyphenyl)propionic acid ethyl ester hydrochloride 

Relevant academic research and scientific papers

The kinetic resolution of oxazinones by alcoholysis: access to orthogonally protected β-amino acids

The catalytic, alcoholytic kinetic resolution of oxazinones is reported. A novel, stereochemically dense cinchona alkaloid-based catalyst can facilitate the highly enantiodiscriminatory (Sup to 101) ring-opening of oxazinones equipped with electrophilic aryl units to generate orthogonally protected β-amino acids for the first time.

Catalytic asymmetric oxidative carbonylation-induced kinetic resolution of sterically hindered benzylamines to chiral isoindolinones

A highly enantioselective kinetic resolution of sterically hindered benzylamines has been achieved for the first time through transition-metal-catalyzed oxidative carbonylation, in which the new KR strategy offered a new approach to afford chiral isoindolinones (er up to 97?:?3) and the origin of chemoselectivity and stereoselectivity was confirmed by density functional theory (DFT) calculations.

Base-induced Sommelet–Hauser rearrangement of N-(α-(2-oxyethyl)branched)benzylic glycine ester-derived ammonium salts via a chelated intermediate

The base-induced Sommelet–Hauser (S–H) rearrangement of N-(α-branched)benzylic glycine ester-derived ammonium salts 1 was investigated. When the α-branched substituent was a simple alkyl, such as a methyl or butyl, desired S–H rearrangement product 2 was obtained in low yield with formation of the [1,2] Stevens rearranged 4 and Hofmann eliminated products 5 and 6. However, when the α-branched substituent had a 2-oxy moiety, such as 2-acetoxyethyl or 2-benzoyloxyethyl, the yields of 2 were improved. These results could be explained by formation of chelated intermediate C that stabilizes the carbanionic ylide, and the subsequent initial dearomative [2,3] sigmatropic rearrangement would be accelerated. The existence of C was supported by mechanistic experiments. This enhancement effect is not very strong or effective; however, it will expand the synthetic usefulness of ammonium ylide rearrangements.

Phenyl-oxamideHIV-1 inhibitors and preparation method and application thereof

The invention relates to phenyl-oxamideHIV-1 inhibitors and a preparation method and application thereof. Compounds have the structure shown in the formula I. The invention further relates to drug compositions containing the compounds with the structure s

Synthesis, molecular docking and biological evaluation of novel phthaloyl derivatives of 3-amino-3-aryl propionic acids as inhibitors of Trypanosoma cruzi trans-sialidase

In the last two decades, trans-sialidase of Trypanosoma cruzi (TcTS) has been an important pharmacological target for developing new anti-Chagas agents. In a continuous effort to discover new potential TcTS inhibitors, 3-amino-3-arylpropionic acid derivatives (series A) and novel phthaloyl derivatives (series B, C and D) were synthesized and molecular docking, TcTS enzyme inhibition and determination of trypanocidal activity were carried out. From four series obtained, compound D-11 had the highest binding affinity value (?11.1 kcal/mol) compared to reference DANA (?7.8 kcal/mol), a natural ligand for TS enzyme. Furthermore, the 3D and 2D interactions analysis of compound D-11 showed a hydrogen bond, π-π stacking, π-anion, hydrophobic and Van der Waals forces with all important amino acid residues (Arg35, Arg245, Arg314, Tyr119, Trp312, Tyr342, Glu230 and Asp59) on the active site of TcTS. Additionally, D-11 showed the highest TcTS enzyme inhibition (86.9% ± 5) by high-performance ion exchange chromatography (HPAEC). Finally, D-11 showed better trypanocidal activity than the reference drugs nifurtimox and benznidazole with an equal % lysis (63 ± 4 and 65 ± 2 at 10 μg/mL) and LC50 value (52.70 ± 2.70 μM and 46.19 ± 2.36 μM) on NINOA and INC-5 strains, respectively. Therefore, D-11 is a small-molecule with potent TcTS inhibition and a strong trypanocidal effect that could help in the development of new anti-Chagas agents.

Kinetic Resolution of Aromatic β-Amino Acids Using a Combination of Phenylalanine Ammonia Lyase and Aminomutase Biocatalysts

An enzymatic strategy for the preparation of (R)-β-arylalanines employing phenylalanine aminomutase and ammonia lyase (PAM and PAL) enzymes has been demonstrated. Candidate PAMs with the desired (S)-selectivity from Streptomyces maritimus (EncP) and Bacillus sp. (PabH) were identified via sequence analysis using a well-studied template sequence. The newly discovered PabH could be linked to the first ever proposed biosynthesis of pyloricidin-like secondary metabolites and was shown to display better β-lyase activity in many cases. In spite of this, a method combining the higher conversion of EncP with a strict α-lyase from Anabaena variabilis (AvPAL) was found to be more amenable, allowing kinetic resolution of five racemic substrates and a preparative-scale reaction with >98% (R) enantiomeric excess. This work represents an improved and enantiocomplementary method to existing biocatalytic strategies, allowing simple product separation and modular telescopic combination with a preceding chemical step using an achiral aldehyde as starting material. (Figure presented.).

Synthesis and biological evaluation of 3-phenyl-3-aryl carboxamido propanoic acid derivatives as small molecule inhibitors of retinoic acid 4-hydroxylase (CYP26A1)

All-trans-retinoic acid (ATRA), the biologically active metabolite of vitamin A, is used medicinally for the treatment of hyperproliferative diseases and cancers. However, it is easily metabolized. In this study, the leading compound S8 was found based on virtual screening. To improve the activity of the leading compound S8, a series of novel S8 derivatives were designed, synthesized and evaluated for their in vitro biological activities. All of the prepared compounds showed that substituting the 5-chloro-3-methyl-1-phenyl-1H-pyrazole group for the 2-tertbutyl-5-methylfuran scaffold led to a clear increase in the biological activity. The most promising compound 32, with a CYP26A1 IC50 value of 1.36 μM (compared to liarozole (IC50 = 2.45 μM) and S8 (IC50 = 3.21 μM)) displayed strong inhibitory and differentiation activity against HL60 cells. In addition, the study focused on the effect of β-phenylalanine, which forms the coordination bond with the heme of CYP26A1. These studies suggest that the compound 32 can be used as an appropriate candidate for future development.

Enantioselective acylation of β-phenylalanine acid and its derivatives catalyzed by penicillin G acylase from alcaligenes faecalis

This study developed a simple, efficient method for producing racemic β-phenylalanine acid (BPA) and its derivatives via the enantioselective acylation catalyzed by the penicillin G acylase from Alcaligenes faecalis (Af-PGA). When the reaction was run at 25°C and pH 10 in an aqueous medium containing phenylacetamide and BPA in a molar ratio of 2:1, 8 U/mL enzyme and 0.1 M BPA, the maximum BPA conversion efficiency at 40 min only reached 36.1%, which, however, increased to 42.9% as the pH value and the molar ratio of phenylacetamide to BPA were elevated to 11 and 3:1, respectively. Under the relatively optimum reaction conditions, the maximum conversion efficiencies of BPA derivatives all reached about 50% in a relatively short reaction time (45-90 min). The enantiomeric excess value of product (eep) and enantiomeric excess value of substrate (ees) were all above 98% and 95%, respectively. These results suggest that the method established in this study is practical, effective, and environmentally benign and may be applied to industrial production of enantiomerically pure BPA and its derivatives.

Kinetic resolution of aromatic β-amino acids by ω-transaminase

Racemic aromatic β-amino acids have been kinetically resolved into (R)-β-amino acids with high enantiomeric excess (>99%) by a novel ω-TA with ca. 50% conversion.

Stereoselective chemoenzymatic preparation of β-amino esters: Molecular modelling considerations in lipase-mediated processes and application to the synthesis of (S)-dapoxetine

A wide range of optically active 3-amino-3-arylpropanoic acid derivatives have been prepared by means of a stereoselective chemoenzymatic route. The key step is the kinetic resolution of the corresponding β-amino esters. Although the enzymatic acylations of the amino group with ethyl methoxyacetate showed synthetically useful enantioselectivities, the hydrolyses of the ester group catalyzed by lipase from Pseudomonas cepacia have been identified as the optimal processes concerning both activity and enantioselectivity. The enantiopreference of this lipase in these reactions has been explained, at the molecular level, by using a fragment-based approach in which the most favoured binding site for a phenyl ring and the most stable conformation of the 3-aminopropanoate core nicely match the (S)-configuration of the major products. The conversion and enantioselectivity values of the enzymatic reactions have been compared in order to understand the influence of the different substitution patterns present in the phenyl ring. This chemoenzymatic route has been successfully applied to the preparation of a valuable intermediate in the synthesis of (S)-dapoxetine, which has been chemically synthesised in excellent optical purity.