Category: nitriles-buliding-blocks

Visser, Michael S. published the artcileSynthesis and biological evaluation of novel hygromycin A antibacterial agents, Name: 2-(Chloromethyl)benzonitrile, the publication is Bioorganic & Medicinal Chemistry Letters (2010), 20(22), 6730-6734, database is CAplus and MEDLINE.

Novel hygromycin A derivatives, e.g. I, bearing a variety of functionalized aminocyclitol moieties have been synthesized in an effort to increase the antibacterial activity and drug-like properties of this class of agents. A systematic study of the effect of alkylation and removal of the hydroxyls of the aminocyclitol directed us to a series of alkylated aminocyclitol derivatives with improved Gram-pos. activity.

Bioorganic & Medicinal Chemistry Letters published new progress about 612-13-5. 612-13-5 belongs to nitriles-buliding-blocks, auxiliary class Organic Pigment, name is 2-(Chloromethyl)benzonitrile, and the molecular formula is C5H6BNO2, Name: 2-(Chloromethyl)benzonitrile.

Referemce:
https://en.wikipedia.org/wiki/Nitrile,
Nitriles – Chemistry LibreTexts

Andersson, Carlaxel published the artcileThe influence of metal coordination on ligand geometry: the structures of 2-(diphenylphosphino)benzyl methyl ether and bis(2-(diphenylphosphino)benzyl methyl ether)palladium(II)triflate, Recommanded Product: Tetrakis(acetonitrile)palladium(II) Ditriflate, the publication is Journal of Molecular Structure (1999), 479(1), 1-11, database is CAplus.

The structures of 2-(diphenylphosphino)benzyl Me ether (I) and bis(2-(diphenylphosphino)benzyl Me ether)palladium(II)triflate (II) were determined by x-ray crystallog. II is a potential catalyst in organic synthesis and was prepared by treating tetrakis(acetonitrile)palladium bistriflate with 2-(diphenylphosphino)benzyl Me ether in toluene for 16 h at room temperature I crystallizes in monoclinic space group P2₁/a with a 7.873(2), b 14.805(3), c 14.262(5) Å, β 91.34(3)°, and Z = 4. II crystallizes in triclinic space group P1̅ with a 10.2886(6), b 13.951(1), c 15.6339(9) Å, α 89.171(5), β 73.791(5), γ 83.463(6)°, and Z = 2. Both structures were solved by direct methods and the refinements resulted in the R-values 0.066 and 0.052 for I and II, resp. The bidentate ligand binds to Pd(II) in a cis-configuration. The Pd-O distances are 2.153(3) and 2.142(3) A and the Pd-P distances 2.252(1) and 2.256(1) Å. The effects of packing and metal complexation on the geometry of I are discussed and the differences are compared by half-normal probability plot anal.

Journal of Molecular Structure published new progress about 68569-14-2. 68569-14-2 belongs to nitriles-buliding-blocks, auxiliary class Palladium, name is Tetrakis(acetonitrile)palladium(II) Ditriflate, and the molecular formula is C10H12F6N4O6PdS2, Recommanded Product: Tetrakis(acetonitrile)palladium(II) Ditriflate.

Referemce:
https://en.wikipedia.org/wiki/Nitrile,
Nitriles – Chemistry LibreTexts

Chan, Kelvin S. L. published the artcilePalladium(II)-Catalyzed Highly Enantioselective C-H Arylation of Cyclopropylmethylamines, Recommanded Product: Tetrakis(acetonitrile)palladium(II) Ditriflate, the publication is Journal of the American Chemical Society (2015), 137(5), 2042-2046, database is CAplus and MEDLINE.

C-H arylation via a Pd(II)/Pd(IV) catalytic cycle has been one of the most extensively studied C-H activation reactions since the 1990s. Despite the rapid development of this reaction in the past two decades, an enantioselective version has not been reported to date. Herein, we report a Pd(II)-catalyzed highly enantioselective (up to 99.5% ee) arylation of cyclopropyl C-H bonds with aryl iodides using mono-N-protected amino acid (MPAA) ligands, providing a new route for the preparation of chiral cis-aryl-cyclopropylmethylamines, e.g., I [R¹ = H, Me, CH₂Ph, Ph, C₆H₃F₂-2,6, CH₂OSiMe₂CMe₃, CO₂Me]. The enantiocontrol is also shown to override the diastereoselectivity of chiral substrates.

Journal of the American Chemical Society published new progress about 68569-14-2. 68569-14-2 belongs to nitriles-buliding-blocks, auxiliary class Palladium, name is Tetrakis(acetonitrile)palladium(II) Ditriflate, and the molecular formula is C10H12F6N4O6PdS2, Recommanded Product: Tetrakis(acetonitrile)palladium(II) Ditriflate.

Referemce:
https://en.wikipedia.org/wiki/Nitrile,
Nitriles – Chemistry LibreTexts

Yamamoto, Yasunori published the artcileIridium-catalyzed hydroboration of alkenes with pinacolborane, Synthetic Route of 238088-16-9, the publication is Tetrahedron (2004), 60(47), 10695-10700, database is CAplus.

Hydroboration of terminal and internal alkenes with pinacolborane was carried out at room temperature in the presence of an iridium(I) catalyst. Addition of dppm to [Ir(cod)Cl]₂ gave the best catalyst for hydroboration of aliphatic terminal and internal alkenes at room temperature, resulting in addition of the boron atom to the terminal carbon of 1-alkenes with excellent selectivities. On the other hand, a complex prepared from dppe and [Ir(cod)Cl]₂ resulted in the best yields for vinylarenes such as styrene. These complexes exhibited higher levels of catalyst activity and selectivity than those of corresponding rhodium complexes.

Tetrahedron published new progress about 238088-16-9. 238088-16-9 belongs to nitriles-buliding-blocks, auxiliary class Nitrile,Boronic acid and ester,Aliphatic cyclic hydrocarbon,Boronic Acids,Boronate Esters, name is 4-(4,4,5,5-Tetramethyl-1,3,2-dioxaborolan-2-yl)butanenitrile, and the molecular formula is C44H28ClFeN4, Synthetic Route of 238088-16-9.

Referemce:
https://en.wikipedia.org/wiki/Nitrile,
Nitriles – Chemistry LibreTexts

Wen, Hui published the artcileA high-resolution method to assess cell multinucleation with cytoplasm-localized fluorescent probes, Quality Control of 26187-28-0, the publication is Analyst (Cambridge, United Kingdom) (2016), 141(13), 4010-4013, database is CAplus and MEDLINE.

Cell multinucleation is closely related to chromosomal instability. We report a simple, convenient method to assess cell multinucleation with cytoplasm-localized fluorescent probes (CLFP) which is superior to conventional nuclear staining methods. The CLFP method provides high-resolution images that enable the accurate calculation of the number of nuclear fragments.

Analyst (Cambridge, United Kingdom) published new progress about 26187-28-0. 26187-28-0 belongs to nitriles-buliding-blocks, auxiliary class Pyrrole,Nitrile, name is 2,4-Dimethyl-1H-pyrrole-3-carbonitrile, and the molecular formula is C27H39ClN2, Quality Control of 26187-28-0.

Referemce:
https://en.wikipedia.org/wiki/Nitrile,
Nitriles – Chemistry LibreTexts

Zhang, Huifang M. published the artcileAntiviral Activity of an Isatin Derivative via Induction of PERK-Nrf2-Mediated Suppression of Cap-Independent Translation, Synthetic Route of 612-13-5, the publication is ACS Chemical Biology (2014), 9(4), 1015-1024, database is CAplus and MEDLINE.

The authors report an isatin derivative 45 (ID45) against coxsackievirus B3 (CVB3) replication, which was synthesized based on a high-throughput screen of a unique natural product library. ID45 showed the most potent anti-CVB3 activity among the four synthesized compounds Treatment of cells with ID45 before or after infection significantly reduced viral particle formation, resulting in protection of cells from virus-induced apoptosis. In addition, ID45 treatment caused remarkable up-regulation of glucose-regulated protein 78 (GRP78), a hallmark of endoplasmic reticulum (ER) stress and an indicator of enhanced cell viability. In identifying the ER stress response pathway induced by ID45, the authors found that ID45 activated PKR-like ER protein kinase (PERK) but failed to up-regulate eIF2α phosphorylation. Instead ID45 activated transcription factor Nrf2 (NF-E2-related factor-2), which is evidenced by its nuclear translocation and upregulation of its downstream target genes NQO1 (NAD(P)H quinone-oxidoreductase 1) and GCLM (glutamate-cysteine ligase, modifier subunit). This observation was further verified by using siRNAs of GRP78 or Nrf2, which blocked both the translocation of Nrf2 and up-regulation of its target genes, leading to aggressive viral replication and enhanced cell apoptosis. Finally, the authors found that ID45-induced up-regulation of NQO1 protected eIF4GI, a eukaryotic cap-dependent translation initiation factor, from cleavage by CVB3 protease and degradation by proteasomes. Taken together, the authors’ findings established that a novel antiviral mechanism of isatin derivative ID45 inhibits CVB3 replication by promoting cell survival through a PERK/Nrf2-dependent ER stress pathway, which benefits host cap-dependent translation but suppresses CVB3 cap-independent translation.

ACS Chemical Biology published new progress about 612-13-5. 612-13-5 belongs to nitriles-buliding-blocks, auxiliary class Organic Pigment, name is 2-(Chloromethyl)benzonitrile, and the molecular formula is C15H14O3, Synthetic Route of 612-13-5.

Referemce:
https://en.wikipedia.org/wiki/Nitrile,
Nitriles – Chemistry LibreTexts

Marco, Jose L. published the artcileSynthesis, biological evaluation and molecular modelling of diversely functionalized heterocyclic derivatives as inhibitors of acetylcholinesterase/butyrylcholinesterase and modulators of Ca²⁺ channels and nicotinic receptors, HPLC of Formula: 5098-14-6, the publication is Bioorganic & Medicinal Chemistry (2004), 12(9), 2199-2218, database is CAplus and MEDLINE.

The synthesis and the biol. activity of heterocyclic derivatives as inhibitors of acetylcholinesterase (AChE) and butyrylcholinesterase (BuChE), as well as modulators of voltage-dependent Ca²⁺ channels and nicotinic receptors, are described. These mols. are tacrine analogs, which have been prepared from polyfunctionalized 6-amino-5-cyano-4H-pyrans, 6-amino-5-cyano-pyridines and 5-amino-2-aryl-3-cyano-1,3-oxazoles via Friedlander reaction with selected cycloalkanones. These compounds are moderate acetylcholinesterase and butyrylcholinesterase inhibitors, the BuChE/AChE selectivity of the most active mols. ranges from 10.0 to 76.9. Interestingly, the oxazolo-tacrine’ derivatives are devoid of any activity. All compounds showed an important inhibitory effect on the nicotinic acetylcholine receptor. Most of them also blocked L-type Ca²⁺ channels, and three of them blocked the non-L type of Ca²⁺ channels. Mol. modeling studies suggest that these compounds might bind at the peripheral binding site of AChE, which opens the possibility to design inhibitors able to bind at both, the catalytic and peripheral binding sites of the enzyme.

Bioorganic & Medicinal Chemistry published new progress about 5098-14-6. 5098-14-6 belongs to nitriles-buliding-blocks, auxiliary class Nitrile,Salt,Sulfonic acid,Amine,Benzene, name is 2-Aminomalononitrile 4-methylbenzenesulfonate, and the molecular formula is C10H11N3O3S, HPLC of Formula: 5098-14-6.

Referemce:
https://en.wikipedia.org/wiki/Nitrile,
Nitriles – Chemistry LibreTexts

Liu, Da-Chuan published the artcileSynthesis and Anticonvulsant Activity Evaluation of 7-Alkoxy[1,2,4]triazolo[3,4-b]benzothiazol-3(2H)-ones, Name: 2-(Chloromethyl)benzonitrile, the publication is Archiv der Pharmazie (Weinheim, Germany) (2014), 347(4), 268-275, database is CAplus and MEDLINE.

A new series of 7-alkoxy[1,2,4]triazolo[3,4-b]benzothiazol-3(2H)-ones were synthesized and evaluated for their anticonvulsant activities. Among these compounds, 7-propoxy[1,2,4]triazolo[3,4-b]benzothiazol-3(2H)-one and 7-butoxy[1,2,4]triazolo[3,4-b]benzothiazol-3(2H)-one (I) showed the highest activity against maximal electroshock (MES)-induced tonic extension [(ED)₅₀ = 11.4 and 13.6 mg/kg, resp.]. It is worth mentioning that compound I showed especially low neurotoxicity, which led to a high protective index (PI >51). The orally anticonvulsant activity data of compound I further confirmed its efficacy, in an MES test, and its high safety with a PI value of 50.2. In addition, the potency of compound I against seizures induced by pentylenetetrazole, 3-mercaptopropionic acid, and bicuculline in the chem.-induced seizure tests suggested that compound I may exert its anticonvulsant activity through affecting the GABAergic system.

Archiv der Pharmazie (Weinheim, Germany) published new progress about 612-13-5. 612-13-5 belongs to nitriles-buliding-blocks, auxiliary class Organic Pigment, name is 2-(Chloromethyl)benzonitrile, and the molecular formula is C8H6ClN, Name: 2-(Chloromethyl)benzonitrile.

Referemce:
https://en.wikipedia.org/wiki/Nitrile,
Nitriles – Chemistry LibreTexts

Wang, Shi-Ben published the artcileSynthesis and evaluation of anticonvulsant and antidepressant activities of 7-alkyl-7H-tetrazolo[1,5-g]purine derivatives, Application In Synthesis of 612-13-5, the publication is Medicinal Chemistry Research (2014), 23(10), 4619-4626, database is CAplus.

7-Alkyl-7H-tetrazolo[1,5-g]purines were synthesized, and their anticonvulsant and antidepressant activities were evaluated in a mouse model. The anticonvulsant effect and neurotoxicity of the compounds were evaluated with a maximal electroshock test and a rotated test in mice, resp. Most of the compounds had anticonvulsant activity. Among the compounds studied, 7-(3-chlorobenzyl)-7H-tetrazolo[1,5-g]purine (I) was the most potent compound with a median ED (ED₅₀) of 28.9 mg/kg and a protective index of 15.8, possessing better anticonvulsant activity and higher safety than carbamazepine. To explain the possible mechanism of anticonvulsant activity, I was tested in pentylenetetrazole-induced seizures, and the results suggest that I exerts anticonvulsant activity through a GABA-mediated mechanism. Forced swimming test showed that at 40 mg/kg, some of the compounds have significant antidepressant activity, the most active compound being 7-(2-chlorobenzyl)-7H-tetrazolo[1,5-g]purine decreasing immobility time by 56%.

Medicinal Chemistry Research published new progress about 612-13-5. 612-13-5 belongs to nitriles-buliding-blocks, auxiliary class Organic Pigment, name is 2-(Chloromethyl)benzonitrile, and the molecular formula is C8H7NO4, Application In Synthesis of 612-13-5.

Referemce:
https://en.wikipedia.org/wiki/Nitrile,
Nitriles – Chemistry LibreTexts

Becart, Diane published the artcileHelical Oligourea Foldamers as Powerful Hydrogen Bonding Catalysts for Enantioselective C-C Bond-Forming Reactions, Category: nitriles-buliding-blocks, the publication is Journal of the American Chemical Society (2017), 139(36), 12524-12532, database is CAplus and MEDLINE.

Substantial progress has been made toward the development of metal-free catalysts of enantioselective transformations, yet the discovery of organic catalysts effective at low catalyst loadings remains a major challenge. Here we report a novel synergistic catalyst combination system consisting of a peptide-inspired chiral helical (thio)urea oligomer and a simple tertiary amine that is able to promote the Michael reaction between enolizable carbonyl compounds and nitroolefins with excellent enantioselectivities at exceptionally low (1/10,000) chiral catalyst/substrate molar ratios. In addition to high selectivity, which correlates strongly with helix folding, the system we report here is also highly amenable to optimization, as each of its components can be fine-tuned sep. to increase reaction rates and/or selectivities. The predictability of the foldamer secondary structure coupled to the high level of control over the primary sequence results in a system with significant potential for future catalyst design.

Journal of the American Chemical Society published new progress about 5153-73-1. 5153-73-1 belongs to nitriles-buliding-blocks, auxiliary class Nitrile,Alkenyl,Nitro Compound,Benzene, name is (E)-4-(2-Nitrovinyl)benzonitrile, and the molecular formula is C9H6N2O2, Category: nitriles-buliding-blocks.

Referemce:
https://en.wikipedia.org/wiki/Nitrile,
Nitriles – Chemistry LibreTexts