Month: November 2022

Erben, Anne published the artcileDNA-instructed acyl transfer reactions for the synthesis of bioactive peptides, Name: 2-(N-(2-((((9H-Fluoren-9-yl)methoxy)carbonyl)amino)ethyl)-2-(2-(((benzhydryloxy)carbonyl)amino)-6-oxo-5H-purin-9(6H)-yl)acetamido)acetic acid, the publication is Bioorganic & Medicinal Chemistry Letters (2011), 21(17), 4993-4997, database is CAplus and MEDLINE.

The authors present a method which allows for the translation of nucleic acid information into the output of mols. that interfere with disease-related protein-protein interactions. The method draws upon a nucleic acid-templated reaction, in which adjacent binding of reactive conjugates triggers the transfer of an aminoacyl or peptidyl group from a donating thioester-linked PNA-peptide hybrid to a peptide-PNA acceptor. The authors evaluated the influence of conjugate structures on reactivity and sequence specificity. The DNA-triggered peptide synthesis proceeded sequence specifically and showed catalytic turnover in template. The affinity of the formed peptide conjugates for the BIR3 domain of the X-linked inhibitor of apoptosis protein (XIAP) is discussed.

Bioorganic & Medicinal Chemistry Letters published new progress about 186046-83-3. 186046-83-3 belongs to amides-buliding-blocks, auxiliary class Purine,Carboxylic acid,Amine,Benzene,Amide,Others,PNA,, name is 2-(N-(2-((((9H-Fluoren-9-yl)methoxy)carbonyl)amino)ethyl)-2-(2-(((benzhydryloxy)carbonyl)amino)-6-oxo-5H-purin-9(6H)-yl)acetamido)acetic acid, and the molecular formula is C40H35N7O8, Name: 2-(N-(2-((((9H-Fluoren-9-yl)methoxy)carbonyl)amino)ethyl)-2-(2-(((benzhydryloxy)carbonyl)amino)-6-oxo-5H-purin-9(6H)-yl)acetamido)acetic acid.

Referemce:
https://en.wikipedia.org/wiki/Amide,
Amide – an overview | ScienceDirect Topics

Erben, Anne published the artcileDNA-Triggered Synthesis and Bioactivity of Proapoptotic Peptides, Quality Control of 186046-83-3, the publication is Angewandte Chemie, International Edition (2011), 50(12), 2828-2832, S2828/1-S2828/17, database is CAplus and MEDLINE.

Diseases are frequently caused by changes in the genetic infrastructure. In such cases, the disordered state of a diseased cell is encoded in the DNA and reflected in the level and sequence of the expressed RNA mols. The information obtained from nucleic acids may be used to direct mol. therapies only to diseased cells and tissues. In a fascinating approach, disease-specific nucleic acid sequences could be hijacked to trigger the formation or release of drug mols. Herein a reaction system is introduced in which the sequence information of an unstructured DNA template is used to trigger the transfer of an aminoacyl group from a donating thioester-modified peptide-nucleic acid (PNA) conjugate to an acceptor peptidyl-PNA conjugate. It is demonstrated that the template can act as a catalyst which instructs the formation of many product mols. per template mol. The formed peptide-PNA conjugate was designed to interfere with the protein-protein interactions between caspase-9, a protease involved in the initiation of programmed cell death (apoptosis), and the X-linked inhibitor of apoptosis protein XIAP. It is shown that the nucleic acid programmed peptide synthesis allows activation of caspase-9 and a downstream caspase.

Angewandte Chemie, International Edition published new progress about 186046-83-3. 186046-83-3 belongs to amides-buliding-blocks, auxiliary class Purine,Carboxylic acid,Amine,Benzene,Amide,Others,PNA,, name is 2-(N-(2-((((9H-Fluoren-9-yl)methoxy)carbonyl)amino)ethyl)-2-(2-(((benzhydryloxy)carbonyl)amino)-6-oxo-5H-purin-9(6H)-yl)acetamido)acetic acid, and the molecular formula is C40H35N7O8, Quality Control of 186046-83-3.

Referemce:
https://en.wikipedia.org/wiki/Amide,
Amide – an overview | ScienceDirect Topics

Chambers, Luke I. published the artcilePredictive identification of co-formers in co-amorphous systems, HPLC of Formula: 1453-82-3, the publication is European Journal of Pharmaceutical Sciences (2021), 105636, database is CAplus and MEDLINE.

This work aims to understand the properties of co-formers that form co-amorphous pharmaceutical materials and to predict co-amorphous system formation. A partial least square – discriminant anal. (PLS-DA) was performed using known co-amorphous systems described by 36 variables based on the properties of the co-former and the binding energy of the system. The PLS-DA investigated the propensity to form co-amorphous material of the active pharmaceutical ingredients: mebendazole, carvedilol, indomethacin, simvastatin, carbamazepine and furosemide in combination with 20 amino acid co-formers. The variables that were found to favor the propensity to form co-amorphous systems appear to be a relatively large value for average mol. weight and the sum of the difference between hydrogen bond donors and hydrogen bond acceptors for both components, and a relatively small or neg. value for excess enthalpy of mixing, excess enthalpy of hydrogen bonding and the difference in the Hansen parameter for hydrogen bonding of the coformer and the active pharmaceutical ingredient (API). To test the predictive power of this model, 29 potential co-formers were used to form either co-amorphous or crystalline two-component materials with mebendazole. Of these 29 two-component systems, the co-amorphous nature of a total of 26 materials was correctly predicted by the model, giving a predictive hit rate of 90%.

European Journal of Pharmaceutical Sciences published new progress about 1453-82-3. 1453-82-3 belongs to amides-buliding-blocks, auxiliary class Pyridine,Amine,Amide, name is Isonicotinamide, and the molecular formula is C6H6N2O, HPLC of Formula: 1453-82-3.

Referemce:
https://en.wikipedia.org/wiki/Amide,
Amide – an overview | ScienceDirect Topics

Rajca, Andrzej published the artcile5-Aryl-2-oxo-1,2,4-oxathiazoles as cyclocarbonylating agents for 2-aminoalcohols and 1,2-diamines, Synthetic Route of 2447-79-2, the publication is Synthesis (1983), 1032-3, database is CAplus.

Cyclocarbonylation of HOCH₂CH₂NHR (R = H, Me) with 2-oxo-5-phenyl- and 5-(2,4-dichlorophenyl)-2-oxo-1,3,4-oxathiazoles gave 68-82% I (X = O; R¹ = H). Similarly, RNHCHR¹CH₂NHR²(R, R¹, R² = H, Me) gave 65-88% I (X = NR²).

Synthesis published new progress about 2447-79-2. 2447-79-2 belongs to amides-buliding-blocks, auxiliary class Chloride,Amine,Benzene,Amide, name is 2,4-Dichlorobenzamide, and the molecular formula is C7H5Cl2NO, Synthetic Route of 2447-79-2.

Referemce:
https://en.wikipedia.org/wiki/Amide,
Amide – an overview | ScienceDirect Topics

Norre, Tobias published the artcileSacubitril/valsartan, sodium-glucose cotransporter 2 inhibitors and vericiguat for congestive heart failure therapy, Recommanded Product: (S)-2-(N-((2′-(1H-Tetrazol-5-yl)-[1,1′-biphenyl]-4-yl)methyl)pentanamido)-3-methylbutanoic acid, the publication is Basic & Clinical Pharmacology & Toxicology (2022), 130(4), 425-438, database is CAplus and MEDLINE.

A review. Heart failure is associated with notable morbidity and mortality, and therefore, novel therapies are needed. This minireview focused on the effects and mechanisms of action of sacubitril/valsartan, sodium-glucose cotransporter 2 inhibitors and vericiguat in heart failure patients. A systematic review of the current literature was conducted. Seventeen randomised clin. trials regarding the effects of these drug classes were included. The mechanism of action of each treatment could improve pathophysiol. imbalances present in heart failure. All three drug classes revealed a reduction in hospitalisations for heart failure or death from cardiovascular causes in patients with reduced ejection fraction. Sacubitril/valsartan also reduced hospitalisations and death from cardiovascular causes in patients with mid-range ejection fraction, but not in patients with preserved ejection fraction. The sodium-glucose cotransporter 2 inhibitors, sotagliflozin and empagliflozin, reduced hospitalisations and death from cardiovascular causes in heart failure patients with preserved ejection fraction. None of the three drug classes was associated with a higher prevalence of treatment discontinuation due to increases in adverse effects in large-scale randomised clin. trials compared with placebo. Further studies are required to clarify the extent of effects of these medications in different subpopulations-especially in patients with mid-range and preserved ejection fraction.

Basic & Clinical Pharmacology & Toxicology published new progress about 137862-53-4. 137862-53-4 belongs to amides-buliding-blocks, auxiliary class GPCR/G Protein,Angiotensin Receptor, name is (S)-2-(N-((2′-(1H-Tetrazol-5-yl)-[1,1′-biphenyl]-4-yl)methyl)pentanamido)-3-methylbutanoic acid, and the molecular formula is C24H29N5O3, Recommanded Product: (S)-2-(N-((2′-(1H-Tetrazol-5-yl)-[1,1′-biphenyl]-4-yl)methyl)pentanamido)-3-methylbutanoic acid.

Referemce:
https://en.wikipedia.org/wiki/Amide,
Amide – an overview | ScienceDirect Topics

Charifson, Paul S. published the artcileNovel Dual-Targeting Benzimidazole Urea Inhibitors of DNA Gyrase and Topoisomerase IV Possessing Potent Antibacterial Activity: Intelligent Design and Evolution through the Judicious Use of Structure-Guided Design and Structure-Activity Relationships, COA of Formula: C11H16BNO3, the publication is Journal of Medicinal Chemistry (2008), 51(17), 5243-5263, database is CAplus and MEDLINE.

The discovery of new antibacterial agents with novel mechanisms of action is necessary to overcome the problem of bacterial resistance that affects all currently used classes of antibiotics. Bacterial DNA gyrase and topoisomerase IV are well-characterized clin. validated targets of the fluoroquinolone antibiotics which exert their antibacterial activity through inhibition of the catalytic subunits. Inhibition of these targets through interaction with their ATP sites has been less clin. successful. The discovery and characterization of a new class of low mol. weight, synthetic inhibitors of gyrase and topoisomerase IV that bind to the ATP sites are presented. The benzimidazole ureas are dual targeting inhibitors of both enzymes and possess potent antibacterial activity against a wide spectrum of relevant pathogens responsible for hospital- and community-acquired infections. The discovery and optimization of this novel class of antibacterials by the use of structure-guided design, modeling, and structure-activity relationships are described. Data are presented for enzyme inhibition, antibacterial activity, and in vivo efficacy by oral and i.v. administration in two rodent infection models.

Journal of Medicinal Chemistry published new progress about 146140-95-6. 146140-95-6 belongs to amides-buliding-blocks, auxiliary class Boronic acid and ester,Amine,Benzene,Amide,Boronic Acids,Boronic Acids,Boronic acid and ester,, name is (2-Pivalamidophenyl)boronic acid, and the molecular formula is C11H16BNO3, COA of Formula: C11H16BNO3.

Referemce:
https://en.wikipedia.org/wiki/Amide,
Amide – an overview | ScienceDirect Topics

Hong, In Seok published the artcileSequence selective tagging of 8-oxo-7,8-dihydro-2′-deoxyguanosine (8-oxodGuo) using PNAs, Application In Synthesis of 186046-83-3, the publication is Bioorganic & Medicinal Chemistry Letters (2015), 25(21), 4918-4921, database is CAplus and MEDLINE.

8-Oxo-7,8-dihydro-2′-deoxyguanosine (8-oxodGuo) is a commonly formed DNA lesion that is useful as a biomarker for oxidative stress. Methods for detecting 8-oxodGuo at specific positions within DNA could be useful for correlating DNA damage with mutational hotspots and repair enzyme accessibility. We describe a method for covalently linking (‘tagging’) peptide nucleic acids (PNAs) containing terminal nucleophiles under oxidative conditions to 8-oxodGuo at specific sites within DNA. Several nucleophiles were examined and the ε-amine of lysine was selected for further studies. As little as 10 fmol of 8-oxodGuo were detected by gel shift using ³²P-labeled target DNA and no tagging of dG at the same site or 8-oxodGuo at a distal site was detected when potassium ferricyanide was used as oxidant in substrates as long as 221 bp.

Bioorganic & Medicinal Chemistry Letters published new progress about 186046-83-3. 186046-83-3 belongs to amides-buliding-blocks, auxiliary class Purine,Carboxylic acid,Amine,Benzene,Amide,Others,PNA,, name is 2-(N-(2-((((9H-Fluoren-9-yl)methoxy)carbonyl)amino)ethyl)-2-(2-(((benzhydryloxy)carbonyl)amino)-6-oxo-5H-purin-9(6H)-yl)acetamido)acetic acid, and the molecular formula is C40H35N7O8, Application In Synthesis of 186046-83-3.

Referemce:
https://en.wikipedia.org/wiki/Amide,
Amide – an overview | ScienceDirect Topics

Wu, Zining published the artcileCell-Based Selection Expands the Utility of DNA-Encoded Small-Molecule Library Technology to Cell Surface Drug Targets: Identification of Novel Antagonists of the NK3 Tachykinin Receptor, Computed Properties of 475216-25-2, the publication is ACS Combinatorial Science (2015), 17(12), 722-731, database is CAplus and MEDLINE.

DNA-encoded small-mol. library technol. has recently emerged as a new paradigm for identifying ligands against drug targets. To date, this technol. has been used with soluble protein targets that are produced and used in a purified state. Here, we describe a cell-based method for identifying small-mol. ligands from DNA-encoded libraries against integral membrane protein targets. We use this method to identify novel, potent, and specific inhibitors of NK3, a member of the tachykinin family of G-protein coupled receptors (GPCRs). The method is simple and broadly applicable to other GPCRs and integral membrane proteins. We have extended the application of DNA-encoded library technol. to membrane-associated targets and demonstrate the feasibility of selecting DNA-tagged, small-mol. ligands from complex combinatorial libraries against targets in a heterogeneous milieu, such as the surface of a cell.

ACS Combinatorial Science published new progress about 475216-25-2. 475216-25-2 belongs to amides-buliding-blocks, auxiliary class Fluoride,Nitro Compound,Amine,Benzene,Amide,Benzene Compounds, name is 4-Fluoro-N-methyl-3-nitrobenzamide, and the molecular formula is C9H9ClN2, Computed Properties of 475216-25-2.

Referemce:
https://en.wikipedia.org/wiki/Amide,
Amide – an overview | ScienceDirect Topics

Kumar, Adarsh published the artcileBiocarbon Supported Nanoscale Ruthenium Oxide-Based Catalyst for Clean Hydrogenation of Arenes and Heteroarenes, Quality Control of 1453-82-3, the publication is ACS Sustainable Chemistry & Engineering (2020), 8(41), 15740-15754, database is CAplus.

Despite considerable achievements in the hydrogenation of aromatic hydrocarbons over the past few years, the ability to hydrogenate arene or heteroarene rings in a highly selective manner in the presence of other reducible sites or without harming the remaining mol. structure has long been a major challenge. Such chemoselectivity and functional group tolerance is highly desirable for enabling direct access to key building blocks of polymers and pharmaceutical agents. For achieving such high selectivity, the development of suitable catalysts is of central importance. Herein, we report a convenient method for the scalable preparation of ruthenium oxide (RuO₂) nanoparticles supported on pine needle char (PNC) by simple impregnation of ruthenium salt on unactivated PNC, a solid byproduct (biochar) obtained in the slow pyrolysis of biomass pine needles. The resulting RuO₂-based nanocatalyst (RuO₂@PNC) exhibited remarkable activity and high selectivity for the hydrogenation of more than 50 challenging arenes and heteroarenes, including biomass-derived aromatic compounds (e.g., 4-n-propylphenol, furfuryl alc., and 2-Me furan). The synthetic value of this transformation is showcased for the hydrogenation of arene mixture present in petroleum refineries or coal tars as well as biomass-derived oils (bio-oils) with enriched furfural, ether, and phenol derivatives Under optimized conditions, the performance of this new catalyst was compared with state-of-the-art com. catalysts such as Ru/C, Pd/C, and Raney nickel and found that RuO₂@PNC is more superior and selective. Furthermore, the catalyst is easily recovered and reused up to four cycles. Biocarbon supported RuO₂-based catalyst exhibited remarkable activity and selectivity for clean hydrogenation of arenes and heteroarenes.

ACS Sustainable Chemistry & Engineering published new progress about 1453-82-3. 1453-82-3 belongs to amides-buliding-blocks, auxiliary class Pyridine,Amine,Amide, name is Isonicotinamide, and the molecular formula is C6H6N2O, Quality Control of 1453-82-3.

Referemce:
https://en.wikipedia.org/wiki/Amide,
Amide – an overview | ScienceDirect Topics

Kaur, Ravneet published the artcileBiodegradation of Butachlor by Bacillus altitudinis and Identification of Metabolites, Name: 2-Chloroacetamide, the publication is Current Microbiology (2020), 77(10), 2602-2612, database is CAplus and MEDLINE.

Butachlor is a chloroacetamide pre-emergence herbicide, with a half-life of 1.6 to 29 days. It is a suspected carcinogen, genotoxin, neurotoxin and persists in the environment having toxic effect on living systems. Butachlor degrading bacterial strain A16 was isolated from coal tar contaminated soil, which showed 99.38% similarity with Bacillus altitudinis 41KF2b^T as revealed by 16S rRNA anal. B. altitudinis strain A16 utilized butachlor as a sole source of carbon and degraded 90% of 50 mg L^-1 butachlor in 5 days at a rate constant and half-life (t_1/2) of 0.02 h^-1 and 34.65 h, resp., following the first-order reaction kinetics. Five metabolites (N-(butoxymethyl)-N-(2-chloroethyl)-2,6-diethylaniline, (N-(butoxymethyl))-2-chloro-N-(2-ethylphenyl) acetamide, N-(butoxymethyl)-2,6-diethyl-N-propylaniline, 2-chloro-N-(2,6-diethylphenyl) acetamide and 2,6-diethylaniline) were produced during the breakdown of butachlor by B. altitudinis A16 as identified by GC-MS anal., which are further mineralized to carbon dioxide and water. A metabolic pathway is proposed and compared with other bacteria. The findings have immense beneficial application since such microbes can be used on large scale for faster soil bioremediation and minimizing neg. impact of pesticide butachlor on health and environment.

Current Microbiology published new progress about 79-07-2. 79-07-2 belongs to amides-buliding-blocks, auxiliary class Chloride,Amine,Aliphatic hydrocarbon chain,Amide,Inhibitor, name is 2-Chloroacetamide, and the molecular formula is C2H4ClNO, Name: 2-Chloroacetamide.

Referemce:
https://en.wikipedia.org/wiki/Amide,
Amide – an overview | ScienceDirect Topics