Month: December 2022

Yan, Zhongzhong published the artcileDesign, synthesis and fungicidal activity evaluation of novel pyrimidinamine derivatives containing phenyl-thiazole/oxazole moiety, COA of Formula: C7H5Cl2NO, the publication is Bioorganic & Medicinal Chemistry (2019), 27(15), 3218-3228, database is CAplus and MEDLINE.

Diflumetorim is a member of pyrimidinamine fungicides that possess excellent antifungal activities. Nevertheless, as reported that the activity of diflumetorim to corn rust (Puccinia sorghi) was not ideal (EC₅₀ = 53.26 mg/L). Herein, a series of novel pyrimidinamine derivatives containing phenyl-thiazole/oxazole moiety were designed based on our previous study and the structural characteristics of diflumetorim, synthesized and bioassayed to discover novel fungicides with excellent antifungal activities. Among these compounds, I gave the optimal fungicidal activity, which resp. offers control effects with EC₅₀ values of 0.93 mg/L against P. sorghi and 1.24 mg/L against E. graminis, significantly superior to com. fungicides diflumetorim, tebuconazole, and flusilazole. Cell cytotoxicity results suggested that compound I has lower toxicities than diflumetorim. Furthermore, DFT calculation indicated that the phenyl-thiazole/oxazole moiety plays an unarguable role in the improvement of activity, which will contribute to designing and developing more potent compounds in the future.

Bioorganic & Medicinal Chemistry 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 C4H3Cl2N3, COA of Formula: C7H5Cl2NO.

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

Ciusa, Walter published the artcile1-Alkyl derivatives of isonicotinic acid diethylamide, Product Details of C10H14N2O, the publication is Gazzetta Chimica Italiana (1960), 147-154, database is CAplus.

cf. CA 52, 2850c. A series of quaternary ammonium salts, 4-Et₂NCOC₅H₄N.RX (R = C_nH_2n+1 (n = 1-18), X = I, Br, Cl) (I), was prepared and the chem. and pharmacol. properties were investigated and compared with those of the analogous derivatives of 3-Et₂NCOC₅H₄N (II). I were prepared by refluxing 0.2 mole 3-Et₂NCOC₅2 hrs. in 100-200 ml. xylene with 0.4 mole RX. I (X = Cl) were prepared from 0.1 mole I (X = Br, I) in 100-300 ml. H₂O by stirring 1 hr. with 0.2 mole freshly prepared AgCl. The following I were prepared [RX, % yield, and m.p. (alc.Et₂O) given]: MeI, 78, 137°; EtI, 84, 104°; Me₂CHI, 60, 78°; BuI, 75, 160°; C₅H₁₁I, 95, 140°; C₁₂H₂₅I, 52, 60°; C₆H₁₃Br, 70, -; C₈H₁₇Br, 70, -; C₁₀H₂₁Br, 70, 43°; C₁₄H₂₉Br, 90, 55°; C₁₆H₃₃Br, 75, 53°; C₁₈H₃₇Br, 86, 101°. Yields indicated that ease of alkylation was practically the same in both series of amides. The following I (X = Cl) were prepared (R and m.p. given): Me, 188°; Et, 145°; Me₂CH, 175°; Bu, 132°; C₅H₁₁, 67°; C₆H₁₃, -(yellow wax); C₈H₁₇, -(yellow wax); C₁₀H₂₁, 51°; C₁₂H₂₅, 59°; C₁₄H₂₉, 74°; C₁₆H₃₃, 66°; C₁₈H₃₇, 83°. The stability of the pyridine ring in I was shown by lack of coloration on boiling with increasing concentrations of aqueous NaOH for prolonged periods. The values of surface tension of members of the series (I) coincided practically with those of corresponding members of the normal series. The antibacterial activity as tested on Staphylococcus aureus showed maximum activity with n = 16 and 18, and was parallel to that noted in the normal series. In tests on the isolated frog heart, arrested beat occurred in 1 min. with 10^-8 mole I (n < 6) and II, and with 10^-6 mole I (n > 8) and tetradecylbenzyldimethylammonium chloride. Compounds in the normal series acted similarly.

Gazzetta Chimica Italiana published new progress about 530-40-5. 530-40-5 belongs to amides-buliding-blocks, auxiliary class Pyridine,Amine,Amide, name is N,N-Diethylisonicotinamide, and the molecular formula is C10H14N2O, Product Details of C10H14N2O.

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

Lores Lareo, Pablo published the artcileNucleic acid and SNP detection via template-directed native chemical ligation and inductively coupled plasma mass spectrometry, Related Products of amides-buliding-blocks, the publication is Journal of Mass Spectrometry (2019), 54(8), 676-683, database is CAplus and MEDLINE.

Detection of nucleic acids and single nucleotide polymorphisms (SNPs) is of pivotal importance in biol. and medicine. Given that the biol. effect of SNPs often is enhanced in combination with other SNPs, multiplexed SNP detection is desirable. We show proof of concept of the multiplexed detection of SNPs based on the template-directed native chem. ligation (NCL) of PNA-probes carrying a metal tag allowing detection using ICP-MS. For the detection of ssDNA oligonucleotides (30 bases), two probes, one carrying the metal tag and a second one carrying biotin for purification, are covalently ligated. The methodol. limit of detection is of 29 pM with RSD of 6.7% at 50 pM (n = 5). Detection of SNPs is performed with the combination of two sets of reporter probes. The first probe set targets the SNP, and its yield is compared with a second set of probes targeting a neighboring sequence. The assay was used to simultaneously differentiate between alleles of three SNPs at 5-nM concentration

Journal of Mass Spectrometry 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, Related Products of amides-buliding-blocks.

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

Peterson, Randall T. published the artcileSmall molecule developmental screens reveal the logic and timing of vertebrate development, HPLC of Formula: 321673-30-7, the publication is Proceedings of the National Academy of Sciences of the United States of America (2000), 97(24), 12965-12969, database is CAplus and MEDLINE.

Much has been learned about vertebrate development by random mutagenesis followed by phenotypic screening and by targeted gene disruption followed by phenotypic anal. in model organisms. Because the timing of many developmental events is critical, it would be useful to have temporal control over modulation of gene function, a luxury frequently not possible with genetic mutants. Here, the authors used synthetic small mols. from the DiverSet E obtained from Chembridge Corp., to demonstrate that small mols. capable of conditional gene product modulation can be identified through developmental screens in zebrafish. The authors have identified several small mols. that specifically modulate various aspects of vertebrate ontogeny, including development of the central nervous system, the cardiovascular system, the neural crest, and the ear. Several of the small mols. identified allowed the authors to dissect the logic of melanocyte and otolith development and to identify critical periods for these events. Small mols. identified in this way offer potential to dissect further these and other developmental processes and to identify novel genes involved in vertebrate development.

Proceedings of the National Academy of Sciences of the United States of America published new progress about 321673-30-7. 321673-30-7 belongs to amides-buliding-blocks, auxiliary class Immunology/Inflammation,Scavenger receptor, name is [(2-Hexylcyclopentylidene)amino]thiourea, and the molecular formula is C12H23N3S, HPLC of Formula: 321673-30-7.

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

Bommegowda, Yadaganahalli K. published the artcileWeinreb amide as an efficient reagent in the one pot synthesis of benzimidazoles and benzothiazoles, Application of N-Methoxy-N-methylisonicotinamide, the publication is Tetrahedron Letters (2013), 54(21), 2693-2695, database is CAplus.

One pot synthesis of 2-substituted benzimidazoles/benzothiazoles through condensation is followed by cyclization of Weinreb amide with o-diaminoarene or o-aminothiophenol is reported. In the presence of boron trifluoride etherate in 1,4-dioxane solvent, a high yield (75-94%) was achieved within 60 min. Weinreb amide shows high selectivity in the reaction, even in presence of other active functional groups such as carboxyl, halogen, cyano, and methoxy.

Tetrahedron Letters published new progress about 100377-32-0. 100377-32-0 belongs to amides-buliding-blocks, auxiliary class Pyridine,Amine,Amide, name is N-Methoxy-N-methylisonicotinamide, and the molecular formula is C8H10N2O2, Application of N-Methoxy-N-methylisonicotinamide.

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

Ayres, James N. published the artcileN-Cyanation of Secondary Amines Using Trichloroacetonitrile, Category: amides-buliding-blocks, the publication is Organic Letters (2016), 18(21), 5528-5531, database is CAplus and MEDLINE.

A one-pot N-cyanation of secondary amines has been developed using trichloroacetonitrile as an inexpensive cyano source. A diverse range of cyclic and acyclic secondary amines can be readily transformed into the corresponding cyanamides in good isolated yields, with the method successfully utilized in the final synthetic step of a biol. active rolipram-derived cyanamide. This approach exhibits distinct selectivity when compared to the use of highly toxic cyanogen bromide.

Organic Letters published new progress about 2451-91-4. 2451-91-4 belongs to amides-buliding-blocks, auxiliary class Nitrile,Amine,Benzene, name is N,N-Dibenzylcyanamide, and the molecular formula is C15H14N2, Category: amides-buliding-blocks.

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

Han, Fangbin published the artcileDiscovery of a Novel Series of Thienopyrimidine as Highly Potent and Selective PI3K Inhibitors, Related Products of amides-buliding-blocks, the publication is ACS Medicinal Chemistry Letters (2015), 6(4), 434-438, database is CAplus and MEDLINE.

Inhibition of the phosphoinositide 3-kinase (PI3K)/AKT/mammalian target of rapamycin (mTOR) signaling pathway provides a promising new approach for cancer therapy. Through a rational design, a novel series of thienopyrimidine was discovered as highly potent and selective PI3K inhibitors. These thienopyrimidine derivatives were demonstrated to bear nanomolar PI3Kα inhibitory potency with over 100-fold selectivity against mTOR kinase. The lead compounds 6g and 6k showed good developability profiles in cell-based proliferation and ADME assays. In this communication, their design, synthesis, structure-activity relationship, selectivity, and some developability properties are described.

ACS Medicinal Chemistry Letters published new progress about 100377-32-0. 100377-32-0 belongs to amides-buliding-blocks, auxiliary class Pyridine,Amine,Amide, name is N-Methoxy-N-methylisonicotinamide, and the molecular formula is C8H10N2O2, Related Products of amides-buliding-blocks.

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

Liu, Hongji published the artcileBergenin-isonicotinamide (1:1) cocrystal with enhanced solubility and investigation of its solubility behavior, SDS of cas: 1453-82-3, the publication is Journal of Drug Delivery Science and Technology (2021), 102556, database is CAplus.

Bergenin (BER) is a bioactive compound used for the treatment of chronic bronchitis in China. However, its low solubility and permeation limits its oral bioavailability. In this study, a new BER: isonicotinamide (ISN) cocrystal (1: 1, molar ratio) was reported for the first time. BER-ISN shows better solubility and intrinsic dissolution rates (IDRs) in aqueous medias such as water, buffer solutions with pH = 1.2, 4.5, and 6.8 in comparison to BER monohydrate. For instance, the solubilities of BER-ISN and BER monohydrate in water were 3.72 ± 0.22 and 1.42 ± 0.006 mg/mL, resp., showing 2.62 times improvement. IDRs of BER-ISN and BER monohydrate were 29.90 ± 0.04 and 18.64 ± 0.27 mg/min/cm₂, resp., which was consistent with the solubility results. To explain the solubility behavior, phase solubility diagrams of BER monohydrate, ISN and BER-ISN in three pure organic solvents (ethanol, isopropanol and Et acetate) were performed according to the solubility product (Ksp) and complexes formation (K11) theory. The predicted solubilities are consistent with exptl. solubilities considering complexation effects. The Hildebrand solubility parameter (HSP) calculations support the results. Thus, BER-ISN cocrystal (1: 1) with improved solubility is a good candidate for further formulation development.

Journal of Drug Delivery Science and Technology 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, SDS of cas: 1453-82-3.

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

Nason, Sara L. published the artcileChanges in Sewage Sludge Chemical Signatures During a COVID-19 Community Lockdown, Part 1: Traffic, Drugs, Mental Health, and Disinfectants, HPLC of Formula: 137862-53-4, the publication is Environmental Toxicology and Chemistry (2022), 41(5), 1179-1192, database is CAplus and MEDLINE.

The early months of the COVID-19 pandemic and the associated shutdowns disrupted many aspects of daily life and thus caused changes in the use and disposal of many types of chems. While records of sales, prescriptions, drug overdoses, and so forth provide data about specific chem. uses during this time, wastewater and sewage sludge anal. can provide a more comprehensive overview of chem. changes within a region. We analyzed primary sludge from a wastewater-treatment plant in Connecticut, USA, collected March 19 to June 30, 2020. This time period encompassed the 1st wave of the pandemic, the initial statewide stay at home order, and the 1st phase of reopening. We used liquid chromatog.-high-resolution mass spectrometry and targeted and suspect screening strategies to identify 78 chems. of interest, which included pharmaceuticals, illicit drugs, disinfectants, UV filters, and others. We analyzed trends over time for the identified chems. using linear trend analyses and multivariate comparisons. We found trends related directly to the pandemic (e.g., hydroxychloroquine, a drug publicized for its potential to treat COVID-19, had elevated concentrations in the week following the implementation of the US Emergency Use Authorization), as well as evidence for seasonal changes in chem. use (e.g., increases for 3 UV-filter compounds). Though wastewater surveillance during the pandemic has largely focused on measuring severe acute respiratory syndrome-coronavirus-2 RNA concentrations, chem. anal. can also show trends that are important for revealing the public and environmental health effects of the pandemic.

Environmental Toxicology and Chemistry 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, HPLC of Formula: 137862-53-4.

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

Wu, Yong-qian published the artcile1-Cyanoimidazole as a Mild and Efficient Electrophilic Cyanating Agent, Formula: C15H14N2, the publication is Organic Letters (2000), 2(6), 795-797, database is CAplus and MEDLINE.

A mild and high-yielding cyanating reaction of amine, sulfur, and carbanion nucleophiles, e.g., PhNH₂, (PhCH₂)₂NH, PhCCH, PhCH₂SH, is reported which uses 1-cyanoimidazole as an electrophilic cyanating agent to give the corresponding cyanated products, e.g., PhNHCN, (PhCH₂)₂NCN, PhCCCN, PhCH₂SCN.

Organic Letters published new progress about 2451-91-4. 2451-91-4 belongs to amides-buliding-blocks, auxiliary class Nitrile,Amine,Benzene, name is N,N-Dibenzylcyanamide, and the molecular formula is C5H5BO5, Formula: C15H14N2.

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