Category: chlorides-buliding-blocks

Baldwin, Jack E. published the artcile5-Isothiazolidinonyl and 5-isoxazolidinonyl radicals. Approaches to the biogenetic-type synthesis of β-lactams, SDS of cas: 18791-02-1, the publication is Tetrahedron (1981), 37(11), 2181-9, database is CAplus.

A possible mechanism for penicillin biosynthesis involves the rearrangement of a 5-isothiazolidinonyl radical I [R = NHCO(CH₂)₃CH(N⁺H₃)CO₂^–, R¹ = H, R² = CH(CO₂H)CHMe₂] to a β-lactam. However, the model radicals I (R = R¹ = Ph, R² = CMe₃; R = Br₃C, R¹ = H, R² = CMe₃), generated in the conversion of II (R = Br, R¹ = R² = Ph) to II (R = H, R¹, R² as before) and II (RR¹ = bond, R² = H) to II (RR¹ = bond, R² = Br₃C), resp., failed to give β-lactams. The analogous reaction of a 5-isoxazolidinonyl radical is the basis for a potential synthesis of clavulanic acid, but again the rearrangement was not observed in the model radical III (R = H, R¹ = absent) generated in the conversion of III (R = H, R¹ = CO₂OCMe₃) to III (RR¹ = bond).

Tetrahedron published new progress about 18791-02-1. 18791-02-1 belongs to chlorides-buliding-blocks, auxiliary class Aliphatic Chain, name is 2,3-Dibromopropionylchloride, and the molecular formula is C3H3Br2ClO, SDS of cas: 18791-02-1.

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

Islam, A. M. published the artcileSynthesis and biological activity of coumarin sulfonamides and related compounds, Name: Coumarin-6-sulfonyl chloride, the publication is Indian Journal of Chemistry, Section B: Organic Chemistry Including Medicinal Chemistry (1982), 21B(5), 487-9, database is CAplus.

The coumarins I [R = BuNH, PhCH₂NH, 2-furylmethylamino, (un)substituted anilino, (un)substituted phenoxy; R¹ = R² = H; X = O] were prepared by treating 6-coumarinylsulfonyl chloride with RH. Some I (R¹ = R² = H) were converted to I (R¹ = R² = Br, R¹ = H, R² = NO₂, R = R¹ = H, X = S, NOH). Some I had bactericidal activity.

Indian Journal of Chemistry, Section B: Organic Chemistry Including Medicinal Chemistry published new progress about 10543-42-7. 10543-42-7 belongs to chlorides-buliding-blocks, auxiliary class Other Aromatic Heterocyclic,Chloride,Sulfonyl chlorides,Ester, name is Coumarin-6-sulfonyl chloride, and the molecular formula is C9H5ClO4S, Name: Coumarin-6-sulfonyl chloride.

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

Ruiz, Patricia published the artcilePrediction of acute mammalian toxicity using QSAR methods: a case study of Sulfur Mustard and its breakdown products, Application In Synthesis of 1002-41-1, the publication is Molecules (2012), 8982-9001, database is CAplus and MEDLINE.

Predicting toxicity quant., using Quant. Structure Activity Relationships (QSAR), has matured over recent years to the point that the predictions can be used to help identify missing comparison values in a substance’s database. In this manuscript we investigate using the LD that kills 50% of a test population (the LD₅₀) for determining relative toxicity of a number of substances. In general, the smaller the LD₅₀ value, the more toxic the chem., and the larger the LD₅₀ value, the lower the toxicity. When systemic toxicity and other specific toxicity data are unavailable for the chem.(s) of interest, during emergency responses, LD₅₀ values may be employed to determine the relative toxicity of a series of chems. In the present study, a group of chem. warfare agents and their breakdown products were evaluated using 4 available rat oral QSAR LD₅₀ models. The QSAR anal. shows that the breakdown products of Sulfur Mustard (HD) are predicted to be less toxic than the parent compound as well as other known breakdown products that have known toxicities. The QSAR estimated break down products LD₅₀ values ranged from 299 mg/kg to 5,764 mg/kg. This evaluation allows for the ranking and toxicity estimation of compounds for which little toxicity information existed; thus leading to better risk decision making in the field.

Molecules published new progress about 1002-41-1. 1002-41-1 belongs to chlorides-buliding-blocks, auxiliary class Aliphatic Chain, name is 1,2-Bis(2-chloroethyl)disulfane, and the molecular formula is C4H8Cl2S2, Application In Synthesis of 1002-41-1.

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

De, Kakali published the artcileRadiolabeled novel peptide for imaging somatostatin receptor-expressing tumor: synthesis and radiobiological evaluation, Synthetic Route of 42074-68-0, the publication is Journal of Radioanalytical and Nuclear Chemistry (2014), 301(3), 847-861, database is CAplus.

The aim of this study was to synthesis, a radiolabeled (^99mTc) new somatostatin-analog 6-hydrazinopyridine-3-carboxylic-acid (HYNIC)-Asn³-octreotate (^99mTc-HYNIC-AATE), and to evaluate as a candidate for imaging somatostatin-receptor (SSTR)-pos. tumors and also compare it with ^99mTc-HYNIC-Tyr³-octreotide (^99mTc-HYNIC-TOC). Synthesis was performed by Fmoc-solid-phase strategy and ^99mTc labeled by SnCl₂. Biodistribution and imaging properties of new radiopeptide were also studied in C6 tumor bearing rat. Radiolabeling was performed at high specific activities and it showed high binding-affinity for SSTR2. In biodistribution, radiopeptides have showed high and receptor-specific uptake in the SSTR2 pos. organs, tumor with rapid renal excretion from non-target tissues. These results demonstrated that ^99mTc-HYNIC-AATE is a new specific radioligand for scintigraphy of somatostatin-receptor-pos. tumors.

Journal of Radioanalytical and Nuclear Chemistry 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, Synthetic Route of 42074-68-0.

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

van Dijken, Derk Jan published the artcileAutoamplification of Molecular Chirality through the Induction of Supramolecular Chirality, Category: chlorides-buliding-blocks, the publication is Angewandte Chemie, International Edition (2014), 53(20), 5073-5077, database is CAplus and MEDLINE.

The novel concept for the autoamplification of mol. chirality, wherein the amplification proceeds through the induction of supramol. chirality, is presented. A solution of prochiral, ring-open diarylethenes is doped with a small amount of their chiral, ring-closed counterpart. The mols. co-assemble into helical fibers through hydrogen bonding and the handedness of the fibers is biased by the chiral, ring-closed diarylethene. Photochem. ring closure of the open diarylethene yields the ring-closed product, which is enriched in the template enantiomer.

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 C18H24N6O6S4, Category: chlorides-buliding-blocks.

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

Shchetinina, V. N. published the artcileEffect of decamethoxine on the integrity of cytoplasmic membranes of gram-positive and gram-negative microorganisms, Name: N1,N10-Bis(2-((2-isopropyl-5-methylcyclohexyl)oxy)-2-oxoethyl)-N1,N1,N10,N10-tetramethyldecane-1,10-diaminium chloride, the publication is Mikrobiologicheskii Zhurnal (1978-1993) (1990), 52(3), 24-8, database is CAplus.

Decamethoxine increased the membrane permeability of Pseudomonas aeruginosa, Escherichia coli, and Micrococcus lysodeikticus. Viability decreased and dehydrogenase activity was inhibited. Aspartate and alanine aminotransferases were not inhibited by decamethoxine, and activity even increased. Decamethoxine lysed the protoplasts of these bacteria. At high decamethoxine concentrations (>500 μg/mL for P. aeruginosa and >200 μ/mL for E. coli) the outflow of components from these gram-neg. bacteria ceased; this may be associated with coagulation changes in the cytoplasm. Loss of low-mol. components by M. lysodeikticus cells and protoplast lysis were less than in the gram-neg. microorganisms, explained by less resistance of M. lysodeikticus to decamethoxine and earlier coagulation of the cytoplasm, preventing lysis.

Mikrobiologicheskii Zhurnal (1978-1993) published new progress about 38146-42-8. 38146-42-8 belongs to chlorides-buliding-blocks, auxiliary class Achiral Phase-Transfer Catalysts, name is N1,N10-Bis(2-((2-isopropyl-5-methylcyclohexyl)oxy)-2-oxoethyl)-N1,N1,N10,N10-tetramethyldecane-1,10-diaminium chloride, and the molecular formula is C8H8O3, Name: N1,N10-Bis(2-((2-isopropyl-5-methylcyclohexyl)oxy)-2-oxoethyl)-N1,N1,N10,N10-tetramethyldecane-1,10-diaminium chloride.

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

Kawakita, Youichi published the artcileDesign and Synthesis of Pyrrolo[3,2-d]pyrimidine Human Epidermal Growth Factor Receptor 2 (HER2)/Epidermal Growth Factor Receptor (EGFR) Dual Inhibitors: Exploration of Novel Back-Pocket Binders, COA of Formula: C6H3ClFNO2, the publication is Journal of Medicinal Chemistry (2012), 55(8), 3975-3991, database is CAplus and MEDLINE.

To develop novel human epidermal growth factor receptor 2 (HER2)/epidermal growth factor receptor (EGFR) kinase inhibitors, we explored pyrrolo[3,2-d]pyrimidine derivatives bearing bicyclic fused rings designed to fit the back pocket of the HER2/EGFR proteins. Among them, the 1,2-benzisothiazole ring was selected as a suitable back pocket binder because of its potent HER2/EGFR binding and cell growth inhibitory (GI) activities and pseudoirreversibility (PI) profile as well as good bioavailability (BA). Ultimately, we arrived at our preclin. candidate I by optimization of the N-5 side chain to improve CYP inhibition and metabolic stability profiles without a loss of potency (HER2/EGFR inhibitory activity, IC₅₀, 0.98/2.5 nM; and GI activity BT-474 cells, GI₅₀, 2.0 nM). Reflecting the strong in vitro activities, I exhibited potent tumor regressive efficacy against both HER2- and EGFR-overexpressing tumor (4-1ST and CAL27) xenograft models in mice at oral doses of 50 mg/kg and 100 mg/kg.

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, COA of Formula: C6H3ClFNO2.

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

Luo, Qianfu published the artcilePreparation and solvent-dependent photochromism of triptycene-bonded dithienylethenes, HPLC of Formula: 219537-97-0, the publication is Chemistry Letters (2014), 43(10), 1584-1586, database is CAplus.

Two new, stable photochromic dithienylethenes DTE-1 and DTE-2 based on triptycene were conveniently synthesized in one pot. Their spectral properties and photochromism in different solvents were studied extensively. It was revealed that the two DTE-triptycene conjugates undergo special UV-vis absorption and color change in chloride solvents when irradiated by UV light.

Chemistry Letters 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 C15H14Cl2S2, HPLC of Formula: 219537-97-0.

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

Yuan, Jingjing published the artcileSubstituent position effect on photochromic properties of aldehyde-functionalized dithienylethenes, SDS of cas: 219537-97-0, the publication is Molecular Crystals and Liquid Crystals (2020), 712(1), 24-30, database is CAplus.

Three sym. dithienylethenes bearing two electron-withdrawing aldehyde groups have been synthesized. And their structures were confirmed by ¹H NMR, ¹³C NMR and HRMS (ESI). Investigation on photochromic properties indicated that they had good photochromic behavior with excellent fatigue resistance upon irradiation with UV or visible light. And it was found that the aldehyde substituent position had a significant effect on their photochromic properties. The DFT calculations further validated those exptl. results for their photochromic behavior. Furthermore, they may be used as versatile building blocks to construct novel photochromic materials.

Molecular Crystals and Liquid Crystals 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 C37H30ClIrOP2, SDS of cas: 219537-97-0.

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

Liu, Yongzhu published the artcilePalladium-catalyzed reductive desulfonative aminocarbonylation of benzylsulfonyl chlorides with nitroarenes towards arylacetamides, HPLC of Formula: 21286-54-4, the publication is Organic Chemistry Frontiers (2022), 9(8), 2079-2083, database is CAplus.

A new palladium-catalyzed reductive desulfonative aminocarbonylation reaction with benzylsulfonyl chlorides RCH₂S(O)₂Cl (R = Ph, 3,4-dimethylphenyl, 2,4-dichlorophenyl, etc.) as C(sp³) electrophiles has been developed. Using nitroarenes R¹NO₂ (R¹ = Ph, quinolin-8-yl, 2H-1,3-benzodioxol-5-yl, etc.) as readily accessible and stable nitrogen surrogates, a wide range of arylacetamides RCH₂C(O)NHR¹ were easily prepared in high yields with very good functional group compatibility. Mo(CO)₆ plays a dual role as both a CO source and reductant. Moreover, a late-stage modification of natural products was also achieved via this aminocarbonylation strategy.

Organic Chemistry Frontiers published new progress about 21286-54-4. 21286-54-4 belongs to chlorides-buliding-blocks, auxiliary class Chiral,Chloride,Sulfonyl chlorides,Aliphatic cyclic hydrocarbon,Ketone, name is ((1S,4R)-7,7-Dimethyl-2-oxobicyclo[2.2.1]heptan-1-yl)methanesulfonyl chloride, and the molecular formula is C10H15ClO3S, HPLC of Formula: 21286-54-4.

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