Author: Jessica.F

Beugelmans, Rene published the artcileSynthetic studies towards western and eastern macropolypeptide subunits of kistamicin, Category: chlorides-buliding-blocks, the publication is Tetrahedron (1999), 55(16), 5089-5112, database is CAplus.

Simplified models of the western and eastern macropolypeptide subunits of kistamicin were prepared The western subunit model I (fused bicyclic 16+15 membered ring) was synthesized by sequential intramol. S_NAr reaction and the first 17-membered ring compound as model of the eastern subunit II was obtained by an intramol. Ni⁰ mediated coupling reaction.

Tetrahedron published new progress about 33697-81-3. 33697-81-3 belongs to chlorides-buliding-blocks, auxiliary class Chloride,Carboxylic acid,Benzene,Phenol, name is 3-Chloro-4-hydroxyphenylacetic acid, and the molecular formula is C8H7ClO3, Category: chlorides-buliding-blocks.

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

Karimi, Nafiseh published the artcile4-(1-benzyl-1H-benzo[d]imidazol-2-yl)-4-oxo-2-butenoic acid derivatives: design, synthesis and anti-HIV-1 activity, Formula: C7H6Cl2, the publication is Iranian Journal of Pharmaceutical Research (2021), 20(1), 408-417, database is CAplus and MEDLINE.

Integrase, targeted in highly active antiretroviral therapy (HAART), was a crucial enzyme in viral replication. In this study, new benzimidazolyl diketo acid derivatives I [R = Ph, 2-MeC₆H₄, 2-FC₆H₄, etc.] were designed according to required features for inhibitors of HIV-1 integrase. Designed compounds I were evaluated for anti-HIV-1 effects and docking studies indicated that the binding mode of compound I [R = 2-FC₆H₄] was similar to INSTIs. According to the cell-based biol. assay’s results, most of the tested compounds I demonstrated good anti-HIV-1 activity, ranging from 40-90μM concentration with no severe cytotoxicity.

Iranian Journal of Pharmaceutical Research published new progress about 620-20-2. 620-20-2 belongs to chlorides-buliding-blocks, auxiliary class Chloride,Benzyl chloride,Benzene, name is 3-Chlorobenzylchloride, and the molecular formula is C7H6Cl2, Formula: C7H6Cl2.

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

Grimova, J. published the artcileTo what extent can results of experimental studies be extrapolated in predicting adverse side effects of drugs in man?, Application In Synthesis of 33697-81-3, the publication is Archives of Toxicology, Supplement (1986), 9(Toxic Interfaces Neurones), 240-3, database is CAplus.

A study of the pharmacokinetics and biotransformation of benzofenac (I) [60736-70-1] was conducted in exptl. animals (rats, rabbits, and dogs) and in human volunteers. The main urinary metabolites in the rat and dog are substances II  [33697-81-3], III  [90276-10-1], and IV [90276-12-3], and in the rabbit and man II and II. Man differs from animals in the quantities of the individual metabolites. Some metabolites were prepared and tested for embryotoxicity in chicken and rat embryos. Of all the metabolites, metabolite IV is responsible for the embryotoxic action of I. This metabolite never occurs in the rabbit or man. These results substantiate the necessity of carrying out concurrent comparative pharmacokinetic and biotransformation studies of new drugs in exptl. animals and man during the preclin. research stage.

Archives of Toxicology, Supplement published new progress about 33697-81-3. 33697-81-3 belongs to chlorides-buliding-blocks, auxiliary class Chloride,Carboxylic acid,Benzene,Phenol, name is 3-Chloro-4-hydroxyphenylacetic acid, and the molecular formula is C8H7ClO3, Application In Synthesis of 33697-81-3.

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

Fattori, Daniela published the artcileDesign and synthesis of novel sulfonamide-containing bradykinin hB₂ receptor antagonists. 2. synthesis and structure-activity relationships of α,α-cycloalkylglycine sulfonamides, HPLC of Formula: 6249-56-5, the publication is Journal of Medicinal Chemistry (2007), 50(3), 550-565, database is CAplus and MEDLINE.

Recently, the design and synthesis of a class of selective nonpeptide bradykinin (BK) B₂ receptor antagonists (J. Med. Chem. 2006, 3602-3613) was reported. This work led to the discovery of MEN 15442 (I), an antagonist with subnanomolar affinity for the human B2 receptor (hB2R), which also displayed significant and prolonged activity in vivo (for up to 210 min) against BK-induced bronchoconstriction in the guinea-pig at a dose of 300 nmol/kg (it), while demonstrating only a slight effect on BK-induced hypotension. Herein, the further optimization of this series of compounds aimed at maximizing the effect on bronchoconstriction and minimizing the effect on hypotension, with a view to developing topically delivered drugs for airway diseases, is described. It was found that MEN 16132 (II), after intratracheal or aerosol administration, inhibited, in a dose-dependent manner, BK-induced bronchoconstricton in the airways, while showing minimal systemic activity. This compound was selected as a preclin. candidate for the topical treatment of airway diseases involving kinin B2 receptor stimulation.

Journal of Medicinal Chemistry published new progress about 6249-56-5. 6249-56-5 belongs to chlorides-buliding-blocks, auxiliary class Phase Transfer Catalyst,Inhibitor,Natural product, name is 3-Carboxy-N,N,N-trimethylpropan-1-aminium chloride, and the molecular formula is C7H16ClNO2, HPLC of Formula: 6249-56-5.

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

Kamdem, Nestor published the artcileSmall-molecule inhibitors of the PDZ domain of Dishevelled proteins interrupt Wnt signalling, Computed Properties of 61551-49-3, the publication is Magnetic Resonance (2021), 2(1), 355-374, database is CAplus.

Dishevelled (Dvl) proteins are important regulators of the Wnt signalling pathway, interacting through their PDZ domains with the Wnt receptor Frizzled. Blocking the Dvl PDZ-Frizzled interaction represents a potential approach for cancer treatment, which stimulated the identification of small-mol. inhibitors, among them the anti-inflammatory drug Sulindac and Ky-02327. Aiming to develop tighter binding compounds without side effects, we investigated structure-activity relationships of sulfonamides. X-ray crystallog. showed high complementarity of anthranilic acid derivatives in the GLGF loop cavity and space for ligand growth toward the PDZ surface. Our best binding compound inhibits Wnt signalling in a dose-dependent manner as demonstrated by TOP-GFP assays (IC50 ∼ 50 μM) and Western blotting of β-catenin levels. Realtime PCR showed reduction in the expression of Wnt-specific genes. Our compound interacted with Dvl-1 PDZ (KD = 2.4 μM) stronger than Ky-02327 and may be developed into a lead compound interfering with the Wnt pathway.

Magnetic Resonance published new progress about 61551-49-3. 61551-49-3 belongs to chlorides-buliding-blocks, auxiliary class Liquid Crystal &OLED Materials, name is 5,6,7,8-Tetrahydronaphthalene-2-sulfonyl chloride, and the molecular formula is C10H11ClO2S, Computed Properties of 61551-49-3.

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

Grassi, Luigi published the artcileAn explorative study towards the chemical synthesis of the immunoglobulin G1 Fc CH3 domain, Formula: C19H14Cl2, the publication is Journal of Peptide Science (2018), 24(12), n/a, database is CAplus and MEDLINE.

Monoclonal antibodies, fusion proteins including Ig fragment c (Ig Fc) CH2-CH3 domains, and engineered antibodies are prominent representatives of an important class of drugs and drug candidates, which are referred to as biotherapeutics or biopharmaceuticals. These recombinant proteins are highly heterogeneous due to their glycosylation pattern. In addition, enzyme-independent reactions, like deamidation, dehydration, and oxidation of sensitive side chains, may contribute to their heterogeneity in a minor amount To investigate the biol. impact of a spontaneous chem. modification, especially if found to be recurrent in a biotherapeutic, it would be necessary to reproduce it in a homogeneous manner. Here, we undertook an explorative study toward the chem. synthesis of the IgG1 Fc CH3 domain, which has been shown to undergo spontaneous changes like succinimide formation and methionine oxidation We used Fmoc-solid-phase peptide synthesis (SPPS) and native chem. ligation (NCL) to test the accessibility of large fragments of the IgG1 Fc CH3 domain. In general, the incorporation of pseudoproline dipeptides improved the quality of the crude peptide precursors; however, sequences larger than 44 residues could not be achieved by standard stepwise elongation with Fmoc-SPPS. In contrast, the application of NCL with Cys residues, which were either native or introduced ad hoc, allowed the assembly of the C-terminal IgG1 Fc CH3 sequence 371 to 450. The syntheses reported here show advantages and limitations of the chem. approaches chosen for the preparation of the synthetic IgG1 Fc CH3 domain and will guide future plans toward the synthesis of both the native and selectively modified full-length domain.

Journal of Peptide Science 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, Formula: C19H14Cl2.

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

Fu, Qiuguo published the artcileBioaccumulation, Biotransformation, and Synergistic Effects of Binary Fungicide Mixtures in Hyalella azteca and Gammarus pulex: How Different/Similar are the Two Species?, SDS of cas: 67747-01-7, the publication is Environmental Science & Technology (2018), 52(22), 13491-13500, database is CAplus and MEDLINE.

Aquatic organisms are consistently exposed to a mixture of micropollutants that can bioaccumulate, undergo biotransformation, and may exert mixture effects. However, little is known on the underlying mechanisms and species-specificity. Herein the authors investigated bioaccumulation, biotransformation and synergistic effects of azole (i.e., prochloraz) and strobilurin (i.e., azoxystrobin) fungicides in the two aquatic invertebrate species, Hyalella azteca and Gammarus pulex. Bioaccumulation of azoxystrobin was similar, whereas bioaccumulation of prochloraz was slightly different in the two species but was still significantly below the REACH criteria for bioaccumulative substances. Similar biotransformation patterns were observed in both species, and only a few unique biotransformation reactions were detected in H. azteca such as malonyl-glucose and taurine conjugation. Toxicokinetic modeling addnl. indicated that biotransformation is a more important elimination pathway in H. azteca. In mixtures, no-observed-adverse-effect levels of prochloraz decreased the LC50s of azoxystrobin in both species which correlated well with increased internal azoxystrobin concentrations This synergistic effect is partly due to the inhibition of cytochrome P 450 monooxygenases by prochloraz which subsequently triggered the reduced biotransformation of azoxystrobin (lower by 5 folds in H. azteca). The largely similar responses in both species suggest that the easier-to-cultivate H. azteca is a promising representative of invertebrates for toxicity testing.

Environmental Science & Technology published new progress about 67747-01-7. 67747-01-7 belongs to chlorides-buliding-blocks, auxiliary class Chloride,Amine,Benzene,Ether,Benzene Compounds, name is N-(2-(2,4,6-Trichlorophenoxy)ethyl)propan-1-amine, and the molecular formula is C11H14Cl3NO, SDS of cas: 67747-01-7.

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

Buffa, Jennifer A. published the artcileThe microbial gbu gene cluster links cardiovascular disease risk associated with red meat consumption to microbiota L-carnitine catabolism, Related Products of chlorides-buliding-blocks, the publication is Nature Microbiology (2022), 7(1), 73-86, database is CAplus and MEDLINE.

Abstract: The heightened cardiovascular disease (CVD) risk observed among omnivores is thought to be linked, in part, to gut microbiota-dependent generation of trimethylamine-N-oxide (TMAO) from L-carnitine, a nutrient abundant in red meat. Gut microbial transformation of L-carnitine into trimethylamine (TMA), the precursor of TMAO, occurs via the intermediate γ-butyrobetaine (γBB). However, the interrelationship of γBB, red meat ingestion and CVD risks, as well as the gut microbial genes responsible for the transformation of γBB to TMA, are unclear. In the present study, we show that plasma γBB levels in individuals from a clin. cohort (n = 2,918) are strongly associated with incident CVD event risks. Culture of human faecal samples and microbial transplantation studies in gnotobiotic mice with defined synthetic communities showed that the introduction of Emergencia timonensis, a human gut microbe that can metabolize γBB into TMA, is sufficient to complete the carnitine → γBB → TMA transformation, elevate TMAO levels and enhance thrombosis potential in recipients after arterial injury. RNA-sequencing analyses of E. timonensis identified a six-gene cluster, herein named the γBB utilization (gbu) gene cluster, which is upregulated in response to γBB. Combinatorial cloning and functional studies identified four genes (gbuA, gbuB, gbuC and gbuE) that are necessary and sufficient to recapitulate the conversion of γBB to TMA when coexpressed in Escherichia coli. Finally, reanal. of samples (n = 113) from a clin., randomized diet, intervention study showed that the abundance of faecal gbuA correlates with plasma TMAO and a red meat-rich diet. Our findings reveal a microbial gene cluster that is critical to dietary carnitine → γBB → TMA → TMAO transformation in hosts and contributes to CVD risk.

Nature Microbiology published new progress about 6249-56-5. 6249-56-5 belongs to chlorides-buliding-blocks, auxiliary class Phase Transfer Catalyst,Inhibitor,Natural product, name is 3-Carboxy-N,N,N-trimethylpropan-1-aminium chloride, and the molecular formula is C7H16ClNO2, Related Products of chlorides-buliding-blocks.

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

Eidam, Oliv published the artcileFragment-guided design of subnanomolar β-lactamase inhibitors active in vivo, Application of 2-Chloro-4-cyanobenzene-1-sulfonyl chloride, the publication is Proceedings of the National Academy of Sciences of the United States of America (2012), 109(43), 17448-17453, S17448/1-S17448/39, database is CAplus and MEDLINE.

Fragment-based design was used to guide derivatization of a lead series of β-lactamase inhibitors that had heretofore resisted optimization for in vivo activity. X-ray structures of fragments overlaid with the lead suggested new, unanticipated functionality and points of attachment. Synthesis of three derivatives improved affinity over 20-fold and improved efficacy in cell culture. Crystal structures were consistent with the fragment-based design, enabling further optimization to a K_i of 50 pM, a 500-fold improvement that required the synthesis of only six derivatives One of these, compound 5, was tested in mice. Whereas cefotaxime alone failed to cure mice infected with β-lactamase-expressing Escherichia coli, 65% were cleared of infection when treated with a cefotaxime:5 combination. Fragment complexes offer a path around design hurdles, even for advanced mols.; the series described here may provide leads to overcome β-lactamase-based resistance, a key clin. challenge.

Proceedings of the National Academy of Sciences of the United States of America published new progress about 254749-11-6. 254749-11-6 belongs to chlorides-buliding-blocks, auxiliary class Chloride,Nitrile,Benzene, name is 2-Chloro-4-cyanobenzene-1-sulfonyl chloride, and the molecular formula is C7H3Cl2NO2S, Application of 2-Chloro-4-cyanobenzene-1-sulfonyl chloride.

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

Vicentini, Chiara Beatrice published the artcilePyrazolo[3,4-c]isothiazole and isothiazolo[4,3-d]isoxazole derivatives as antifungal agents, Application In Synthesis of 1869-22-3, the publication is Pharmaceutical Biology (London, United Kingdom) (2011), 49(5), 545-552, database is CAplus and MEDLINE.

Fungal diseases due to zoopathogenic fungi and phytopathogenic fungi are increasing and among the substances used to combat fungi, azoles are of primary interest, both in agricultural fields and health and to void fungal resistance phenomena, the synthesis and tests of new derivatives are necessary. This article discusses the preparation and antifungal activity of pyrazolo[3,4-c]isothiazole and isothiazolo[4,3-d]isoxazole derivatives against three pathogenic fungi for plants and two opportunistic fungi in humans and plants. The synthesis of the target compounds [i.e., 6-[2-chloro-5-(trifluoromethyl)phenyl]-4-methyl-6H-pyrazolo[3,4-c]isothiazol-3-amine, 6-[3-chloro-5-(trifluoromethyl)-2-pyridinyl]-4-methyl-6H-pyrazolo[3,4-c]isothiazol-3-amine] was achieved using 2-cyano-3-ethoxy-2-butenethioamide as a starting material. The title compounds were evaluated against Magnaporthe grisea (phytopathogenic fungi), Pythium ultimum, Sclerotinia minor, Fusarium moniliforme (opportunistic strain ATCC 36541) and Trichoderma viride (opportunistic strain) and it was discovered that the fungi were sensitive toward the different azole-derivatives In general Magnaporthe grisea (T.T. Hebert Yaegashi & Udagawa) was the most sensitive fungus, being blocked almost entirely by a 4-chlorophenyl derivative [6-(4-chlorophenyl)-4-methyl-6H-pyrazolo[3,4-c]isothiazol-3-amine] even at 20 μμg/mL, a concentration at which the reference com. compound Tricyclazole was nearly ineffective. These findings demonstrate that the pyrazolo[3,4-c]isothiazole derivatives have a wide spectrum of activity on phytopathogenic and opportunistic fungi. In particular the 4-chloro derivative seems to have a great potential as new product to combat M. grisea in the agricultural field.

Pharmaceutical Biology (London, United Kingdom) published new progress about 1869-22-3. 1869-22-3 belongs to chlorides-buliding-blocks, auxiliary class Trifluoromethyl,Fluoride,Chloride,Hydrazine,Amine,Benzene, name is 1-(2-Chloro-5-(trifluoromethyl)phenyl)hydrazine, and the molecular formula is C10H11NO4, Application In Synthesis of 1869-22-3.

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