Chlorides-buliding-blocks

Nafie, Mohamed S. published the artcileControl of ER-positive breast cancer by ERα expression inhibition, apoptosis induction, cell cycle arrest using semisynthetic isoeugenol derivatives, Product Details of C7H6Cl2, the publication is Chemico-Biological Interactions (2022), 109753, database is CAplus and MEDLINE.

New semi-synthetic effective and safe anticancer agents isoeugenol derivatives were synthesized, characterized, and screened for their cytotoxic activity against MCF-7. Moreover, their selective cytotoxicity was assessed against MCF-10A. Three derivatives, 2, 8 and 10 were significantly more active than the reference drug 5-FU with IC50 values of 6.59, 8.07 and 9.63 and 30.93 μM, resp. Also interestingly, these derivatives demonstrated some degree of selectivity to cancer cells over normal cells. Furthermore, derivative 2 was subjected to other in vitro experiments against MCF-7 where it inhibited colony formation by 87.5% and lowered ERα concentration to 395.7 pg/mL compared to 1129 pg/mL in untreated control cells. In continuation of the investigation, the apoptotic activity of compound 2, was assessed where it significantly enhanced total apoptotic cell death by 9.16-fold (18.70% compared to 1.64% for the untreated MCF-7 control cells) and arrested the cell cycle at the G2/M phase. Furthermore, the mol. mechanism of apoptotic activity was investigated at both the gene (RT-PCR) and protein (western plotting) levels where upregulation of pro-apoptotic and down regulation of anti-apoptotic genes was detected. Addnl., compound 2 treatment enhanced the antioxidant (GSH, CAT, SOD) activities. Finally, in vivo experiments verified the effective anticancer activity of compound 2 through inhibition of tumor proliferation by 47.6% compared to 22.9% for 5-FU and amelioration of the hematol., biochem., and histopathol. examinations near normal. In effect, compound 2 can be viewed as a promising semi-synthetic derivative of isoeugenol with some degree of selectivity for management of breast cancer through apoptotic induction and ERα downregulation.

Chemico-Biological Interactions 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, Product Details of C7H6Cl2.

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

Subiros-Funosas, Ramon published the artcileUse of Oxyma as pH modulatory agent to be used in the prevention of base-driven side reactions and its effect on 2-chlorotrityl chloride resin, Category: chlorides-buliding-blocks, the publication is Biopolymers (2012), 98(2), 89-97, database is CAplus and MEDLINE.

The presence of low pKa N-hydroxylamines is beneficial in peptide chem. as they reduce some base-mediated side reactions. Here we evaluated the applicability and buffering capacity of Et 2-cyano-2-(hydroxyimino)acetate (Oxyma) in the prevention of aspartimide/piperidide formation and Pro-based overcoupling and compared it with the performance of HOBt and HOAt. In addition, the compatibility of these additives with the highly acid-labile 2-chlorotrityl chloride resin is examined © 2011 Wiley Periodicals, Inc. Biopolymers, 2011.

Biopolymers 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 C4H6N2, Category: chlorides-buliding-blocks.

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

Al Musaimi, Othman published the artcileBypassing osmotic shock dilemma in a polystyrene resin using the green solvent cyclopentyl methyl ether (CPME): a morphological perspective, Quality Control of 42074-68-0, the publication is Polymers (Basel, Switzerland) (2019), 11(5), 874, database is CAplus and MEDLINE.

The “osmotic shock” phenomenon is the main thing that is responsible for morphol. structure alteration, which can jeopardize the use of a polymer in a chem. process. This is extremely important in solid-phase peptide synthesis (SPPS), which is the method of choice for the preparation of these important biol. active compounds Herein, we have used Hildebrand solubility parameters (d) to investigate the influence of different ethers that are used in the precipitation step of the SPPS using a polystyrene resin. The green cyclopentyl Me ether (CPME) has shown to be slightly superior to 2-methyltetrahydrofurane, which is also a green ether and clearly better than the hazardous di-Et ether and tert-Bu Me ether. These results have been corroborated by scanning electron microscope (SEM) anal. and computational studies. All together, these confirm the adequacy of CPME for being the ether of choice to be used in SPPS.

Polymers (Basel, Switzerland) 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, Quality Control of 42074-68-0.

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

Yuan, Yunyun published the artcileStructure selectivity relationship studies of 17-cyclopropylmethyl-3,14β-dihydroxy-4,5α-epoxy-6β-[(4′-pyridyl)carboxamido]morphinan derivatives toward the development of the mu opioid receptor antagonists, Name: 2-Chloroisonicotinic acid, the publication is Bioorganic & Medicinal Chemistry Letters (2011), 21(18), 5625-5629, database is CAplus and MEDLINE.

Mu opioid receptor antagonists have been applied to target a variety of diseases clin. The current study is designed to explore the structure selectivity relationship (SSR) of 17-cyclopropylmethyl-3,14β-dihydroxy-4,5α-epoxy-6β-[(4′-pyridyl)carboxamido]morphinan (NAP), a lead compound identified as a selective mu opioid receptor antagonist based on the previous study. Among a series of NAP derivatives synthesized, compounds 6 (NMP) and 9 (NGP) maintained comparable binding affinity, selectivity and efficacy to the lead compound Particularly, the mu opioid receptor selectivity over kappa opioid receptor of NGP was considerably enhanced compared to that of NAP. Overall, the preliminary SSR supported our original hypothesis that an alternate address’ domain may exist in the mu opioid receptor, which favors the ligands carrying a hydrogen bond acceptor and an aromatic system to selectively recognize the mu opioid receptor.

Bioorganic & Medicinal Chemistry Letters published new progress about 6313-54-8. 6313-54-8 belongs to chlorides-buliding-blocks, auxiliary class Pyridine,Chloride,Carboxylic acid, name is 2-Chloroisonicotinic acid, and the molecular formula is C22H18O2, Name: 2-Chloroisonicotinic acid.

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

Yuan, Yunyun published the artcileDesign, Synthesis, and Biological Evaluation of 17-Cyclopropylmethyl-3,14β-dihydroxy-4,5α-epoxy-6β-[(4′-pyridyl)carboxamido]morphinan Derivatives as Peripheral Selective μ Opioid Receptor Agents, Computed Properties of 6313-54-8, the publication is Journal of Medicinal Chemistry (2012), 55(22), 10118-10129, database is CAplus and MEDLINE.

Peripheral selective μ opioid receptor (MOR) antagonists could alleviate the symptoms of opioid-induced constipation (OIC) without compromising the analgesic effect of opioids. However, a variety of adverse effects were associated with them, partially due to their relatively low MOR selectivity. A 6β-N-4′-pyridyl substituted naltrexamine derivative, NAP, I (R = 4-pyridyl) was identified previously as a potent and highly selective MOR antagonist mainly acting within the peripheral nervous system. The noticeable diarrhea associated with it prompted the design and synthesis of its analogs in order to study its structure-activity relationship. Among them, compound I (R = 2-methyl-4-pyridyl) showed improved pharmacol. profiles compared to the original lead, acting mainly at peripheral while increasing the intestinal motility in morphine-pelleted mice (ED₅₀ = 0.03 mg/kg). The slight decrease of the ED₅₀ compared to the original lead was well compensated by the unobserved adverse effect. Hence, this compound seems to be a more promising lead to develop novel therapeutic agents toward OIC.

Journal of Medicinal Chemistry published new progress about 6313-54-8. 6313-54-8 belongs to chlorides-buliding-blocks, auxiliary class Pyridine,Chloride,Carboxylic acid, name is 2-Chloroisonicotinic acid, and the molecular formula is C12H12N2O, Computed Properties of 6313-54-8.

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

Ismail, I. Imam published the artcileReactions with coumarin. VI, Application In Synthesis of 10543-42-7, the publication is Afinidad (2002), 59(498), 151-154, database is CAplus.

The present investigation is designed to study the reaction of some active methylene compounds with coumarin-6-sulfonyl hydrazones, I (X = O, S). The following active methylene compounds were used: malononitrile, Et cyanoacetate, di-Et malonate and 2,4-pentanedione. It was found that, the active methylene compound is added to the double bond of the hydrazone to give an adduct, which cyclized directly to pyrazole or pyrazoline-5-one derivatives, e.g. II.

Afinidad 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, Application In Synthesis of 10543-42-7.

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

El-Aleem, A. H. Abd published the artcileReactions with coumarin, Related Products of chlorides-buliding-blocks, the publication is Modelling, Measurement & Control, C: Energetics, Chemistry, Earth, Environmental & Biomedical Problems (1994), 46(3), 17-23, database is CAplus.

Some reactions of coumarin-6-sulfonyl chloride (I) with hydrazines or acid hydrazides were investigated. E.g., reaction of I with hydrazine hydrate gave the hydrazino derivative, which reacted with aldehydes or ketones to yield hydrazones.

Modelling, Measurement & Control, C: Energetics, Chemistry, Earth, Environmental & Biomedical Problems 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, Related Products of chlorides-buliding-blocks.

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

Ismail, Imam published the artcileReactions with coumarin. V., SDS of cas: 10543-42-7, the publication is Afinidad (2000), 57(487), 217-221, database is CAplus.

Several coumarin-6-sulfonamides (I; R = H, Me; substituent attached ortho, meta, or para) were prepared by reaction of coumarin-6-sulfonyl chloride with different aromatic amino compounds Imidazole derivatives were formed by reaction of I (R = Me) with ethylenediamine. Reaction of I (R = Me) with hydrazine hydrate afforded acid hydrazides. An oxadiazole was synthesized by reaction of a hydrazide with BzCl to give a diacylhydrazine, which cyclized to the oxadiazole derivative by heating with POCl₃. A thiadiazole derivative was synthesized by reaction of a hydrazide with Ph isothiocyanate, followed by treatment with POCl₃. Reaction of I (R = Me) with excess hydrazine hydrate (1:5 mol) proceeded with α-pyrone ring fission to give the corresponding cinnamoyl hydrazide derivatives Condensation of one of these with furfural gave the hydrazone, which cyclized to the oxadiazole on treatment with acetic anhydride.

Afinidad 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, SDS of cas: 10543-42-7.

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

Barhoumi, Ali published the artcileTheoretical study of the chemical reactivity of a class of trivalent phosphorus derivatives towards polyhaloalkanes: DFT study, Category: chlorides-buliding-blocks, the publication is Journal of Molecular Modeling (2021), 27(7), 197, database is CAplus and MEDLINE.

Abstract: In the current work, the chem. reactivity of some trivalent phosphorus derivatives R₂PR’ towards polyhaloalkanes CCl₃POR”₂ was studied by the quantum method DFT/B3LYP/6-311G(d,p). The introduction of substituents for the trivalent phosphorus derivative and polyhaloalkane allowed us to have more information on these reactions. On the one hand, the calculation of reactivity indexes derived from the DFT/B3LYP/6-311G(d,p) method and the gap_LUMO-HOMO show that trivalent organophosphorus derivatives behave as nucleophiles, while polyhaloalkanes act as electrophiles. On the other hand, the calculation of the activation barrier and the determination of the free enthalpy variation prove that the kinetic and thermodn. products of these reactions result from the nucleophilic attack of the phosphorus atom on the chlorine halogen. All these theor. predictions are in very good agreement with the exptl. results.

Journal of Molecular Modeling 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, Category: chlorides-buliding-blocks.

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

Barhoumi, A. published the artcileA DFT study of the mechanism and regioselectivity of the reaction between diethyl trichloro-methyl phosphonate and diphenyl methyl phosphinite, Category: chlorides-buliding-blocks, the publication is Moroccan Journal of Chemistry (2020), 8(4), 830-840, database is CAplus.

The reaction of di-Et trichloro-Me phosphonate (C1) with di-Ph Me phosphinite (C2), has been scrutinized within the D. Function Theory at the B3LYP/6-311(d,p) computational level. The regiosomeric reaction paths involving the two center of compound (C1) have been studied. DFT calculations account for the high regioselectivity in the chlorine atom, in complete agreement with the exptl. outcomes.

Moroccan Journal of Chemistry 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, Category: chlorides-buliding-blocks.

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