Month: November 2022

Felton, Lloyd C. published the artcileAction of substituted salicylaldehydes on bacteria and fungi, Category: chlorides-buliding-blocks, the publication is Science (Washington, DC, United States) (1947), 409-10, database is CAplus and MEDLINE.

The following 8 substituted derivatives of salicylaldehyde (I) were tested for antibacterial and fungi-static activity: 5-Cl-I, 5-Br-I, 5-I-I, 5-tert-butyl-I, 3,5-di-Cl-I, 3,5-di-Br-I, 3-Cl-5-Br-I, and 3-Br-5-tert-butyl-I. All of these compounds completely inhibited the growth of Trichophyton metagraphytes on agar plates when present in a 5% concentration, and some were active for the fungus as low as 0.005%. Both gram-neg. (Shigella and Pseudomonas sp.) and gram-pos. (Staphylococcus and Streptococcus sp.) bacteria were inhibited by dilutions of 1:500 to 1:64,000 of the various compounds 3,5-Dibromo-I (trade name Dalyde) is being studied more extensively both in vitro and in vivo against pathogenic bacteria and fungi.

Science (Washington, DC, United States) published new progress about 19652-33-6. 19652-33-6 belongs to chlorides-buliding-blocks, auxiliary class Chloride,Bromide,Benzene,Phenol,Aldehyde, name is 5-Bromo-3-chloro-2-hydroxybenzaldehyde, and the molecular formula is C7H4BrClO2, Category: chlorides-buliding-blocks.

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

Nguyen, Anh Minh Thao published the artcileInfluence of N-methylation and conformation on almiramide anti-leishmanial activity, SDS of cas: 42074-68-0, the publication is Molecules (2021), 26(12), 3606, database is CAplus and MEDLINE.

The almiramide N-methylated lipopeptides exhibit promising activity against trypanosomatid parasites. A structure-activity relationship study has been performed to examine the influences of N-methylation and conformation on activity against various strains of leishmaniasis protozoan and on cytotoxicity. The synthesis and biol. anal. of twenty-five analogs demonstrated that derivatives with a single Me group on either the first or fifth residue amide nitrogen exhibited greater activity than the permethylated peptides and relatively high potency against resistant strains. Replacement of amino amide residues in the peptide, by turn inducing α amino γ lactam (Agl) and N-aminoimidazalone (Nai) counterparts, reduced typically anti-parasitic activity; however, peptide amides possessing Agl residues at the second residue retained significant potency in the unmethylated and permethylated series. Systematic study of the effects of methylation and turn geometry on anti-parasitic activity indicated the relevance of an extended conformer about the central residues, and conformational mobility by tertiary amide isomerization and turn geometry at the extremities of the active peptides.

Molecules published new progress about 42074-68-0. 42074-68-0 belongs to chlorides-buliding-blocks, auxiliary class Chloride,Benzyl chloride,Benzene, name is 2-Chlorotrityl chloride, and the molecular formula is C19H14Cl2, SDS of cas: 42074-68-0.

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

Garcia, Ana M. published the artcileModulation of cAMP-Specific PDE without Emetogenic Activity: New Sulfide-Like PDE7 Inhibitors, Application In Synthesis of 350-30-1, the publication is Journal of Medicinal Chemistry (2014), 57(20), 8590-8607, database is CAplus and MEDLINE.

A forward chem. genetic approach was followed to discover new targets and lead compounds for Parkinson’s disease (PD) treatment. By anal. of the cell protection produced by some small mols., a di-Ph sulfide compound was revealed to be a new phosphodiesterase 7 (PDE7) inhibitor and identified as a new hit. This result allows us to confirm the utility of PDE7 inhibitors as a potential pharmacol. treatment of PD. On the basis of these data, a diverse family of di-Ph sulfides has been developed and pharmacol. evaluated in the present work. Moreover, to gain insight into the safety of PDE7 inhibitors for human chronic treatment, the authors evaluated the new compounds in a surrogate emesis model, showing nonemetic effects.

Journal of Medicinal Chemistry published new progress about 350-30-1. 350-30-1 belongs to chlorides-buliding-blocks, auxiliary class Fluoride,Chloride,Nitro Compound,Benzene, name is 3-Chloro-4-fluoronitrobenzene, and the molecular formula is C6H3ClFNO2, Application In Synthesis of 350-30-1.

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

Hobbs, Heather published the artcileDiscovery of 3-Oxabicyclo[4.1.0]heptane, a Non-nitrogen Containing Morpholine Isostere, and Its Application in Novel Inhibitors of the PI3K-AKT-mTOR Pathway, Formula: C3H9ClOS, the publication is Journal of Medicinal Chemistry (2019), 62(15), 6972-6984, database is CAplus and MEDLINE.

4-(Pyrimidin-4-yl)morpholines are privileged pharmacophores for PI3K and PIKKs inhibition by virtue of the morpholine oxygen, both forming the key hydrogen bonding interaction and conveying selectivity over the broader kinome. Key to the morpholine utility as a kinase hinge binder is its ability to adopt a coplanar conformation with an adjacent aromatic core favored by the morpholine nitrogen nonbonding pair of electrons interacting with the electron deficient pyrimidine π-system. Few selective morpholine replacements have been identified to date. Herein we describe the discovery of a potent non-nitrogen containing morpholine isostere with the ability to mimic this conformation and its application in a potent selective dual inhibitor of mTORC1 and mTORC2 (29b).

Journal of Medicinal Chemistry published new progress about 5034-06-0. 5034-06-0 belongs to chlorides-buliding-blocks, auxiliary class Salt,Aliphatic hydrocarbon chain, name is trimethyloxosulphonium chloride, and the molecular formula is C3H9ClOS, Formula: C3H9ClOS.

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

Neale, Peta A. published the artcileAssessing the mixture effects in in vitro bioassays of chemicals occurring in small agricultural streams during rain events, Recommanded Product: Ethyl 2-(4-chlorophenoxy)-2-methylpropanoate, the publication is Environmental Science & Technology (2020), 54(13), 8280-8290, database is CAplus and MEDLINE.

Rain events may impact the chem. pollution burden in rivers. Forty-four small streams in Germany were profiled during several rain events for the presence of 395 chems. and five types of mixture effects in in vitro bioassays (cytotoxicity; activation of the estrogen, aryl hydrocarbon, and peroxisome proliferator-activated receptors; and oxidative stress response). While these streams were selected to cover a wide range of agricultural impacts, in addition to the expected pesticides, wastewater-derived chems. and chems. typical for street runoff were detected. The unexpectedly high estrogenic effects in many samples indicated the impact by wastewater or overflow of combined sewer systems. The 128 water samples exhibited a high diversity of chem. and effect patterns, even for different rain events at the same site. The detected 290 chems. explained only a small fraction (<8%) of the measured effects. The exptl. effects of the designed mixtures of detected chems. that were expected to dominate the mixture effects of detected chems. were consistent with predictions for concentration addition within a factor of two for 94% of the mixtures Overall, the burden of chems. and effects was much higher than that previously detected in surface water during dry weather, with the effects often exceeding proposed effect-based trigger values.

Environmental Science & Technology published new progress about 637-07-0. 637-07-0 belongs to chlorides-buliding-blocks, auxiliary class Inhibitor,Cell Cycle,PPAR, name is Ethyl 2-(4-chlorophenoxy)-2-methylpropanoate, and the molecular formula is C12H15ClO3, Recommanded Product: Ethyl 2-(4-chlorophenoxy)-2-methylpropanoate.

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

Wilson, Danielle published the artcileTurning “On” and “Off” a Pyridoxal 5′-Phosphate Mimic Using Light, Product Details of C15H14Cl2S2, the publication is Angewandte Chemie, International Edition (2012), 51(22), 5431-5434, S5431/1-S5431/13, database is CAplus and MEDLINE.

The use of light to reversibly change the structure of biol. relevant mols., thereby turning important biochem. functions “on” and “off” on command, offers a non-invasive, rapid, spatial and temporal tool for research and therapy. The biol. active form of vitamin B₆ is pyridoxal 5′-phosphate (PLP), a versatile enzyme cofactor responsible for amino acid metabolism in all organisms from bacteria to humans. The present work describes the development of a photoresponsive PLP mimic whose catalytic activity can be reversibly switched “on” and “off” by irradiating it with UV and visible light, resp. This was accomplished by taking advantage of the photoswitchable dithienylethene (DTE) architecture, which undergoes UV light-dependent ring-closing and visible light-dependent ring-opening reactions. The ability of this photoresponsive PLP mimic to serve as a controllable catalyst was demonstrated using hydrogen-deuterium exchange experiments and ¹H NMR spectroscopy of solutions of optically pure L-alanine. The relative rates of deuterium exchange reflect the difference in electronic properties of the “ring-open” and “ring-closed” forms of the PLP mimic.

Angewandte Chemie, International Edition published new progress about 219537-97-0. 219537-97-0 belongs to chlorides-buliding-blocks, auxiliary class Fused/Partially Saturated Cycles,Cyclopentenes, name is 5-Chloro-3-[2-(5-chloro-2-methylthien-3-yl)cyclopent-1-en-1-yl]-2-methylthiophene, and the molecular formula is C15H12O8, Product Details of C15H14Cl2S2.

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

Awasthi, Alok K. published the artcilePractical Enantioselective Synthesis of β-Substituted-β-amino Esters, Computed Properties of 19652-33-6, the publication is Journal of Organic Chemistry (2005), 70(14), 5387-5397, database is CAplus and MEDLINE.

A practical, large-scale synthesis of a β-amino ester was developed. A chiral imine derived from (S)-phenylglycinol and 3-trimethylsilylpropanal was coupled with a Reformatskii reagent with high diastereoselectivity (de > 98%) to give (3S)-3-[[(1S)-2-hydroxy-1-phenylethyl]amino]-5-(trimethylsilyl)-4-pentynoic acid 1,1-dimethylethyl ester (I) as the major isomer. The amino alc. residue of the coupling product I was oxidatively cleaved with sodium periodate in the presence of methylamine. An unusual selective oxidative cleavage of I was observed and an imine was obtained with ee >99% while (3R)-3-[[(1S)-2-hydroxy-1-phenylethyl]amino]-5-(trimethylsilyl)-4-pentynoic acid 1,1-dimethylethyl ester [(R,S)-isomer] was not cleaved. Reaction with p-toluenesulfonic acid monohydrate allowed for the hydrolysis of the imine and the isolation of the amine as its salt. The title compound was then obtained by transesterification, desilylation, and hydrochloride salt formation in a one-pot process. The method was successfully applied toward the synthesis of a wide variety of β-amino esters.

Journal of Organic Chemistry published new progress about 19652-33-6. 19652-33-6 belongs to chlorides-buliding-blocks, auxiliary class Chloride,Bromide,Benzene,Phenol,Aldehyde, name is 5-Bromo-3-chloro-2-hydroxybenzaldehyde, and the molecular formula is C7H4BrClO2, Computed Properties of 19652-33-6.

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

Benouargha, A. published the artcileRedistribution of dichlorosilanes and dihydridosilanes. Synthesis of chloro hydridosilanes, Related Products of chlorides-buliding-blocks, the publication is Phosphorus, Sulfur and Silicon and the Related Elements (1996), 113(1-4), 79-87, database is CAplus.

The redistribution of dichlorosilanes, RSiMeCl₂, and dihydridosilanes, RSiMeH₂ (prepared by reduction of the homologs dichlorosilanes), in the presence of a quaternary ammonium salt is presented. The influence of the nature of R (fluoroalkyl chain: R_FCH₂CH₂ with R_F = CF₃, C₄F₉, C₈F₁₇; alkyl chain: R = C₆H₁₃; or aromatic: R = C₆H₅) and of the temperature on the rate of the reaction was studied. The equilibrium constants and free enthalpies are calculated and discussed taking into account the nature of R. The new products described were characterized from IR, ¹H, ¹⁹F and ²⁹Si NMR spectroscopies.

Phosphorus, Sulfur and Silicon and the Related Elements published new progress about 14799-94-1. 14799-94-1 belongs to chlorides-buliding-blocks, auxiliary class Aliphatic Chain, name is Dichloro(hexyl)(methyl)silane, and the molecular formula is C7H16Cl2Si, Related Products of chlorides-buliding-blocks.

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

Han, Byung Hee published the artcileOrganic sonochemistry. Ultrasonic acceleration of the hydrosilation reaction, Name: Dichloro(hexyl)(methyl)silane, the publication is Organometallics (1983), 2(6), 769-71, database is CAplus.

Ultrasonic waves dramatically increase the activity of a Pt/C catalyst in the hydrosilylation of alkenes or alkynes, e.g., 1-hexene, PhCCH, by hydrosilanes, e.g., HSiCl₃, HSiMeCl₂, HSiEt₃, HSi(OEt)₃. The reaction was carried out at -30°.

Organometallics published new progress about 14799-94-1. 14799-94-1 belongs to chlorides-buliding-blocks, auxiliary class Aliphatic Chain, name is Dichloro(hexyl)(methyl)silane, and the molecular formula is C7H16Cl2Si, Name: Dichloro(hexyl)(methyl)silane.

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

Ramazani, A. published the artcileIn silico analysis and development of anti-malarial compounds against dihydroorotate dehydrogenase using chem-bioinformatic tools, Category: chlorides-buliding-blocks, the publication is International Journal of Pharma and Bio Sciences (2011), 2(2), 122-131, database is CAplus.

Computational studies have been developed to unravel the mechanism of action of the anti-malarial drugs and to give guidelines for the development of new derivatives with improved efficiency. In this study, dihydroorotate dehydrogenase (DHOD), a key enzyme in de novo pyrimidine biosynthesis and the major source of electrons for the mitochondrial electron transport chain of intraerythrocytic malaria parasites, was selected as a target for potential inhibitors. Beginning with the natural inhibitors found in crystallographed mols. representing *.pdb file, a general similarity search were done in PDB, NCI and PUBMED databases resemble probable anti-malarial compounds This made it possible to dock these ligand libraries with DHOD by FlexX 3.2, 2007 software and comparing the inter-mol. interactions and scores which are given to them by the software. The highest absolute value of interactions energies were considered be the best and proper ligands. These ligands were used for second 95% similarity search in PUBCHEM for proposed anti-malarial compound which have the same mechanism as A26. As an interesting point among 400 found mols. was presence of quinolines. This could propose a new mechanism for these important anti-malarial agents.

International Journal of Pharma and Bio Sciences published new progress about 4584-49-0. 4584-49-0 belongs to chlorides-buliding-blocks, auxiliary class Chloride,Salt,Amine,Aliphatic hydrocarbon chain, name is 2-Chloro-N,N-dimethylpropan-1-amine hydrochloride, and the molecular formula is C5H13Cl2N, Category: chlorides-buliding-blocks.

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