Month: December 2022

Pokrovskii, V. A. published the artcileMatrix-assisted laser desorption/ionization mass spectrometric study of bisquaternary ammonium antimicrobial agent decamethoxinum in 2,5-dihydroxybenzoic acid, Safety of N1,N10-Bis(2-((2-isopropyl-5-methylcyclohexyl)oxy)-2-oxoethyl)-N1,N1,N10,N10-tetramethyldecane-1,10-diaminium chloride, the publication is Mass-Spektrometriya (2005), 2(3), 183-192, database is CAplus.

The results of investigation of decamethoxinum on matrix-assisted laser desorption/ionization (MALDI) time-of-flight mass spectrometer using 2,5-dihydroxybenzoic acid (DHB) matrix were presented. The MALDI mass spectra were obtained in the linear, reflectron and post source decay (PSD) modes. The spectra reveal diagnostic quasimol. ions of the decamethoxinum [Cat·Cl]⁺ and [Cat-H]⁺. The PSD data confirm that the pathways of unimol. decay of the [Cat·Cl]⁺ ions in the gas phase coincide with those of the salt thermal degradation via dequaternization; this agrees with the data obtained earlier with the use of secondary ion mass spectrometry. Abundant clusters containing Cat²⁺ and anions those originate from the DHB matrix were observed, and it was suggested that they were stabilized either by the electrostatic interactions with the carboxylic group (carboxylate anion) of DHB or due to the cation-π interactions with the DHB aromatic ring.

Mass-Spektrometriya 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 C38H74Cl2N2O4, Safety of 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

Pashynskaya, V. A. published the artcileMechanistic investigation of the interaction between bisquaternary antimicrobial agents and phospholipids by liquid secondary ion mass spectrometry and differential scanning calorimetry, Formula: C38H74Cl2N2O4, the publication is Rapid Communications in Mass Spectrometry (2002), 16(18), 1706-1713, database is CAplus and MEDLINE.

Mechanisms of interaction between the antimicrobial drugs decamethoxinum and aethonium, which are based on bisquaternary ammonium compounds, and a phospholipid component of biol. membranes, dipalmitoylphosphatidylcholine, were studied by means of liquid secondary ion mass spectrometry (LSIMS) and differential scanning calorimetry (DSC). Supramol. complexes of the drugs with this phospholipid were recorded under secondary ion mass spectrometric conditions. The dependence of the structures of these complexes on structural parameters of the dications of the bisquaternary ammonium compounds was demonstrated. Tandem mass spectrometric investigations of the metastable decay of doubly charged ions of decamethoxinum and aethonium complexes with dipalmitoylphosphatidylcholine allowed estimation of structural parameters of these complexes in the gas phase. Interactions of decamethoxinum and aethonium with model membrane assemblies built from hydrated dipalmitoylphosphatidylcholine were studied using DSC. It was shown that while both drugs can interact with model membranes, the mechanisms of such interactions for decamethoxinum and aethonium differ. The correlation between the nature of these interactions and structural and electronic parameters of the dications of the two bisquaternary agents is discussed. Interpretation of combined mass spectrometric and calorimetric exptl. data led to proposals that the mol. mechanisms of antimicrobial action of bisquaternary ammonium compounds are related to their effect on the membrane phospholipid components of microbial cells.

Rapid Communications in Mass Spectrometry 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 C38H74Cl2N2O4, Formula: C38H74Cl2N2O4.

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

Pashynska, V. A. published the artcileStudy of non-covalent complexes formation between the bisquaternary ammonium antimicrobial agent decamethoxinum and membrane phospholipids by electrospray ionization and collision-induced dissociation mass spectrometry, Category: chlorides-buliding-blocks, the publication is Visnik Kharkivs’kogo Natsional’nogo Universitetu im. V. N. Karazina (2004), 123-130, database is CAplus.

The noncovalent complex formation between the membrane phospholipid, dipalmitoylphosphatidylcholine, and the bisquaternary ammonium antimicrobial agent, decamethoxinum, which is related to its biol. activity, was studied by electrospray ionization (ESI) mass spectrometry and collision-induced dissociation (CID) tandem mass spectrometry. Stable doubly-charged complexes of the drug dication with phospholipid mol. assemblies containing up to nine phospholipid mols., which model drug-phospholipid interactions in biol. membrane systems, were registered. For examination of the structure and the stability characteristics of the drug-phospholipid noncovalent complexes, their CID spectra were examined The developed ESI mass spectrometry methodol. is proposed for fast screening of bisquaternary ammonium compounds with antimicrobial activity.

Visnik Kharkivs’kogo Natsional’nogo Universitetu im. V. N. Karazina 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 C38H74Cl2N2O4, Category: chlorides-buliding-blocks.

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

Pashynska, V. A. published the artcileThe effect of cone voltage on electrospray mass spectra of the bisquaternary ammonium salt decamethoxinum, Formula: C38H74Cl2N2O4, the publication is Rapid Communications in Mass Spectrometry (2005), 20(5), 755-763, database is CAplus.

The effect of cone voltage (CV) variation on the mass spectral pattern of the bisquaternary ammonium salt decamethoxinum in the electrospray ionization (ESI) mode was studied. The advantage of decamethoxinum as a test compound in ESI mass spectrometry lies in the production of two types of precursor ions, i.e. the doubly charged organic dication Cat²⁺ and its singly charged cluster with a Cl^– counterion, Cat · Cl⁺. This makes it possible to monitor the fragmentation patterns of these ions under identical exptl. conditions. Pronounced qual. and quant. changes in the ESI mass spectra were observed upon a gradual increase of the CV. The model compound decamethoxinum allowed us to reveal the extreme situation, in which the mass spectra at a CV below and over approx. 100 V look quite different, in that they contain different product ions of Cat²⁺ and Cat · Cl⁺. While this effect may be much less pronounced for other classes of organic compounds, it should be properly taken into account for the adequate description of fragmentation pathways of bisquaternary ammonium compounds with ESI. Comparison of ESI, FAB-SIMS and MALDI mass spectra of decamethoxinum shows that taking into account CV effects also permits us to gain information on energy deposition into ions generated with the different ionization techniques.

Rapid Communications in Mass Spectrometry 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 C38H74Cl2N2O4, Formula: C38H74Cl2N2O4.

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

Pashynska, V. A. published the artcileDimethyl sulfoxide as a functional agent for antimicrobial drug’s transport facilitating: mechanistic study by mass spectrometry, Synthetic Route of 38146-42-8, the publication is Functional Materials (2022), 29(1), 100-106, database is CAplus.

Electrospray ionization mass spectrometry (ESI MS) study has been performed to examine biol. significant intermol. interactions between the mols. of DMSO (DMSO, known as a functional agent for transdermal and transmembrane drug’s transfer facilitation) and some antimicrobial drugs. Formation of stable noncovalent complexes of DMSO with the mols. of antibiotics levofloxacin (LEF) and cycloserine (CYS) in the polar solvent methanol has been revealed by ESI MS probing of model binary systems of DMSO with the mentioned drugs. At the same time ESI MS investigation of the similar model systems containing DMSO and antimicrobial chemotherapeutic preparation decamethoxinum (DEC) has shown that any peaks of the noncovalent complexes between DMSO and DEC are not recorded in the mass spectra, that points to the dependence of DMSO-drug complexation peculiarities on the drug’s structure. The data of ESI MS examining of DMSO+d ipalm itoylp hosphatidyl choline model system reveal that the DMSO mols. also do not form stable noncovalent clusters with the membrane phospholipid mols. in the polar surrounding. The obtained results as to formation of stable noncovalent complexes of DMSO with LEF and CYS in the polar solvent are proposed to be considered as one of the possible mol. mechanisms of action of DMSO as transdermal and transmembrane penetration enhancer in drug delivery. The current study confirms the ESI MS method applicability to examining the DMSO complexation with the drugs mole-cules and biomols. with the purpose to predict the DMSO usage efficiency as an agent for the drug’s transdermal and transmembrane transport facilitating.

Functional Materials 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 C38H74Cl2N2O4, Synthetic Route of 38146-42-8.

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

Pashynska, V. A. published the artcileModel mass spectrometric study of competitive interactions of antimicrobial bisquaternary ammonium drugs and aspirin with membrane phospholipids, Safety of N1,N10-Bis(2-((2-isopropyl-5-methylcyclohexyl)oxy)-2-oxoethyl)-N1,N1,N10,N10-tetramethyldecane-1,10-diaminium chloride, the publication is Biopolymers and Cell (2013), 29(2), 157-162, database is CAplus.

Aim: The aim of the study is to reveal mol. mechanisms of possible activity modulation of antimicrobial bisquaternary ammonium compounds (BQAC) and aspirin (ASP) through noncovalent competitive complexation under their combined introduction into the model systems with membrane phospholipids. Methods: Binary and triple systems containing either decamethoxinum or ethonium, or thionium and aspirin, as well as dipalmitoylphosphatidylcholine (DPPC) have been investigated by electrospray ionization mass spectrometry. Results: Basing on the anal. of associates recorded in the mass spectra, the types of nonocovalent complexes formed in the systems studied were determined and the supposed role of the complexation in the BQAC and ASP activity modulation was discussed. The formation of associates of BQA C dications with ASP anion is considered as one of the possible ways of deactivation of ionic forms of the medications. The formation of stable complexes of BQAC with DPPC and ASP with DPPC in binary systems as well as the complexes distribution in triple-components systems BQACASP:DPPC point to the existence of competition between drugs of these two types for the binding to DPPC. Conclusions: The results obtained point to the competitive complexation in the model mol. systems containing the BQAC, aspirin and membrane phospholipids. The observed phenomenon testifies to the possibility of nodularizing the activity of bisquaternary antimicrobial agents and aspirin under their combined usage, due to the competition between the drugs for binding to the target membrane phospholipid mols. and also due to the formation of stable noncovalent complexes between BQAC and ASP.

Biopolymers and Cell 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 C38H74Cl2N2O4, Safety of 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

Bretschneider, Leonore published the artcileCationically modified 6-deoxy-6-azido cellulose as a water-soluble and reactive biopolymer derivative, Product Details of C7H16ClNO2, the publication is Polymer Bulletin (Heidelberg, Germany) (2015), 72(3), 473-485, database is CAplus.

Cellulose p-toluenesulfonic acid ester was obtained by conversion of cellulose with p-toluenesulfonic acid chloride and triethylamine in N,N-dimethylacetamide/LiCl solution Further reaction with sodium azide afforded the corresponding 6-deoxy-6-azido cellulose with almost complete displacement of the sulfonate groups. Conversion of 6-deoxy-6-azido cellulose with carboxypropyltrimethylammonium chloride in the presence of N,N’-carbonyldiimidazole yielded 6-deoxy-6-azido cellulose-2,3-O-[4-(N,N,N-trimethylammonium)]butyrate chloride with the degree of substitution of cationic groups up to 0.24. Alternatively, conversion of 6-deoxy-6-azido cellulose with 4-bromobutyltrimethylammonium bromide in the presence of sodium hydroxide in 2-propanol slurry afforded 6-deoxy-6-azido-2,3-O-(4-trimethylammonium)butyl cellulose bromide with a DS of cationic groups up to 0.30. The resulting products are water soluble provided that the content of cationic groups is sufficiently high. Etherification was found to influence the d.p. much more than esterification. Utilization of DMSO and sodium hydride caused predominant polymer degradation

Polymer Bulletin (Heidelberg, Germany) 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, Product Details of C7H16ClNO2.

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

Struwe, Julia published the artcilePhoto-Induced Ruthenium-Catalyzed C-H Benzylations and Allylations at Room Temperature, Name: 1-(Chloromethyl)-4-(trifluoromethyl)benzene, the publication is Chemistry – A European Journal (2021), 27(65), 16237-16241, database is CAplus and MEDLINE.

The ruthenium-catalyzed synthesis of diarylmethane compounds was realized under exceedingly mild photoredox conditions without the use of exogenous photocatalysts. The versatility and robustness of the ruthenium-catalyzed C-H benzylation was reflected by an ample scope, including multifold C-H functionalizations, as well as transformable pyrazoles, imidates and sensitive nucleosides. Mechanistic studies were indicative of a photoactive cyclometalated ruthenium complex, which also enabled versatile C-H allylations.

Chemistry – A European Journal published new progress about 939-99-1. 939-99-1 belongs to chlorides-buliding-blocks, auxiliary class Fluoride,Chloride,Benzyl chloride,Benzene, name is 1-(Chloromethyl)-4-(trifluoromethyl)benzene, and the molecular formula is C17H14O5, Name: 1-(Chloromethyl)-4-(trifluoromethyl)benzene.

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

Gabov, N. I. published the artcileThin-layer chromatography of chloromethylphosphonic acid esters, SDS of cas: 866-23-9, the publication is Zhurnal Analiticheskoi Khimii (1975), 30(5), 1024-7, database is CAplus.

The methyl hexyl ketone-Me2CO-heptane (4:1:5) system ensures effective thin-layer chromatog. separation (on silufol plates) of normal esters of methylphosphonic and chloromethylphosphoacids. There is a linear correlation between the Rf values and the number of Cl atoms in the chloromethyl radical. A procedure was developed for the identification of 32P-labeled chloromethylphosphonic acid esters in CCl4 and CHCl3 mixtures with PrOH produced by hot-atom reactions of 32P.

Zhurnal Analiticheskoi Khimii published new progress about 866-23-9. 866-23-9 belongs to chlorides-buliding-blocks, auxiliary class Aliphatic Chain, name is Diethyltrichloromethylphosphonate, and the molecular formula is C5H10Cl3O3P, SDS of cas: 866-23-9.

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

Volyanskii, Yu. L. published the artcileEffect of gentamicin, decamethoxin and prodigiozan on the course and outcome of experimental pyocyanic infection in white mice, Category: chlorides-buliding-blocks, the publication is Antibiotiki (Moscow) (1978), 23(3), 254-7, database is CAplus.

Gentamicin [1403-66-3] (0.2 mg/kg) and decamethoxin [38146-42-8] (5 mg/kg) given i.p. to mice 12 h before, at the time of, or for 3 days beginning 2 days after inoculation with Pseudomonas aeruginosa increased survival of the infected animals. Combined treatment with gentamicin and decamethoxin gave the highest survival rates. Prodigiozan [9057-00-5] (1 mg/kg) was ineffective against the infection.

Antibiotiki (Moscow) 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 C12H25Br, Category: chlorides-buliding-blocks.

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