Tag: M.W=150-200

Hodgson, Ernest published the artcileNutrition and metabolism of methyl donors and related compounds in the blowfly Phormia regina, Application In Synthesis of 6249-56-5, the publication is Archives of Biochemistry and Biophysics (1960), 48-54, database is CAplus and MEDLINE.

In the nutrition of P. regina (CA 51, 6894i), γ-butyrobetaine (I) or O-acetylcarnitine served as replacements for choline (II) (quant. data given), while 2-monomethylaminoethanol was a partial replacement. The relative effectiveness of the various compounds is discussed. Ethanolamine, β-hydroxybutyrate, γ-aminobutyrate, β-hydroxy-γ-aminobutyrate, trimethylamine, and sarcosine did not serve as replacements in promoting growth, even when supplemented by other metabolites (named). The II-inhibitor 2-amino-2-methylpropanol inhibited growth, but its effects could be reversed by II and compounds which could replace II. Phospholipides containing serine, ethanolamine, and II were found to be normal constituents of 3rd instar larvae. Formate was not utilized in the biosynthesis of Me groups in II synthesis, but was metabolized with liberation of CO₂, both by the living larvae and their homogenates. Biosynthesis of II from ethanolamine either did not occur or was of little importance. The effectiveness of I as a replacement for II was of interest, since I has been described as a carnitine inhibitor in other organisms. Possible mechanisms of utilization are discussed. Metabolic differences in different spp. of insects are interpreted in relation to dietary requirements. 33 references.

Archives of Biochemistry and Biophysics 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, Application In Synthesis of 6249-56-5.

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

Zhang, Lei published the artcileDesign, synthesis and evaluation of the multidrug resistance-reversing activity of pyridine acid esters of podophyllotoxin in human leukemia cells, Computed Properties of 6313-54-8, the publication is Bioorganic & Medicinal Chemistry Letters (2016), 26(18), 4466-4471, database is CAplus and MEDLINE.

Multidrug resistance (MDR) is the main cause for chemotherapeutic failure in cancer treatment. To overcome MDR, a series of pyridine acid esters of podophyllotoxin, I (R = 3-pyridyl, 4-chloro-2-pyridyl, 5-methoxy-2-pyridyl, etc.), was synthesized and their antiproliferation activities were evaluated against two human chronic myeloid leukemia cell lines in vitro. Most of them exhibited potent growth inhibition with IC₅₀ values in the nanomolar range as well as markedly reduced resistance factors. The most potent compound, I (R = 6-bromo-2-pyridyl) (II) exhibited an IC₅₀ of 0.046 ± 0.003 μM against resistant K562/ADR cells, showing more significant activity than that of adriamycin and etoposide, resp. Furthermore, II efficiently triggered cell cycle arrest at S phase and simultaneously induced apoptosis in K562/ADR cells. Meanwhile, II also regulated the expression levels of cell cycle- and apoptosis-related proteins. Addnl., II stimulated the ERK1/2 signaling and reduced the expression of Pgp protein. Finally, on the basis of results obtained using U0126, an ERK1/2 inhibitor, the ERK1/2 signalling pathway was proposed for the multidrug resistance-reversing effect of II in K562/ADR cells. Together, II could be a novel potential MDR reversal agent for the treatment of drug-resistant leukemia.

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 C14H10N2O, Computed Properties of 6313-54-8.

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

Zhang, Wen published the artcileCopper-Catalyzed Arylation of Benzylic C-H bonds with Alkylarenes as the Limiting Reagents, HPLC of Formula: 871332-95-5, the publication is Journal of the American Chemical Society (2017), 139(23), 7709-7712, database is CAplus and MEDLINE.

A novel copper-catalyzed arylation of benzylic C-H bonds with nucleophilic arylboronic acids has been developed that provides an efficient way to synthesize various 1,1-diarylalkanes with a broad substrate scope and excellent functional group compatibility. The reactions occur at room temperature using alkylarenes as the limiting reagents, which allows access to the arylation of the more valuable and complex bioactive compounds

Journal of the American Chemical Society published new progress about 871332-95-5. 871332-95-5 belongs to chlorides-buliding-blocks, auxiliary class Chloride,Nitrile,Boronic acid and ester,Benzene,Boronic Acids,Boronic acid and ester, name is (4-Chloro-3-cyanophenyl)boronic acid, and the molecular formula is C19H14N2, HPLC of Formula: 871332-95-5.

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

Benalil, Aziza published the artcileSynthesis of 1,2-aminoazides. Conversion to unsymmetrical vicinal diamines by catalytic hydrogenation or reductive alkylation with dichloroboranes, SDS of cas: 4584-49-0, the publication is Tetrahedron (1991), 47(38), 8177-94, database is CAplus.

1,2-Aminoazides, e.g., I, are easily prepared from 1,2-amino alcs. Catalytic hydrogenation in the presence of palladium on charcoal or reductive alkylation with dichloroboranes afford with good yields unsym. substituted vicinal diamines.

Tetrahedron 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, SDS of cas: 4584-49-0.

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

Pierens, Gregory K. published the artcileDetermination of analyte concentration using the residual solvent resonance in ¹H NMR spectroscopy, Category: chlorides-buliding-blocks, the publication is Journal of Natural Products (2008), 71(5), 810-813, database is CAplus and MEDLINE.

An NMR protocol that uses the residual proton signal from DMSO-d₆ (i.e., DMSO-d₅) to determine the concentration of an analyte in a NMR sample was developed. This technique provides an alternative method for determining the molar concentration of compounds in solution without prior knowledge of their mol. weight The method is particularly useful when submilligram quantities of compound are to be analyzed and is applicable to a variety of different research areas such as compound management, and natural product, combinatorial, and medicinal chem.

Journal of Natural Products 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

Pla-Lopez, Alberto published the artcileSynthesis and Biological Evaluation of Small Molecules as Potential Anticancer Multitarget Agents, Quality Control of 620-20-2, the publication is International Journal of Molecular Sciences (2022), 23(13), 7049, database is CAplus and MEDLINE.

Twenty-six triazole-based derivatives were designed for targeting both PD-L1 (programmed death receptor ligand 1) and VEGFR-2 (vascular endothelial growth factor receptor 2). These compounds were synthesized and biol. evaluated as multitarget inhibitors of VEGFR-2, PD-L1 and c-Myc proteins. The antiproliferative activity of these mols. on several tumor cell lines (HT-29, A-549, and MCF-7) and on the non-tumor cell line HEK-293 was determined The effects on the abovementioned biol. targets were evaluated for some selected compounds Compound I, bearing a p-chlorophenyl group, showed better results than sorafenib in regard to the downregulation of VEGFR-2 and a similar effect to BMS-8 on both PD-L1 and c-Myc proteins. The antiangiogenic and antivascular activities of chloro derivatives were also established by endothelial microtube formation assay on Matrigel.

International Journal of Molecular Sciences 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, Quality Control of 620-20-2.

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

Lumeras, Wenceslao published the artcileDesign, Synthesis, and Structure-Activity Relationships of Aminopyridine N-Oxides, a Novel Scaffold for the Potent and Selective Inhibition of p38 Mitogen Activated Protein Kinase, Synthetic Route of 209919-30-2, the publication is Journal of Medicinal Chemistry (2009), 52(17), 5531-5545, database is CAplus and MEDLINE.

A novel series of aminopyridine N-oxides, e.g. I, were designed, synthesized, and tested for their ability to inhibit p38α MAP kinase. Some of these compounds showed a significant reduction in the LPS-induced TNFα production in human whole blood. Structure-activity relationship studies revealed that N-oxide oxygen was essential for activity and was probably a determinant factor for a marked selectivity against other related kinases. Compound I was identified as a potent and selective p38α inhibitor with an appropriate balance between potency and pharmacokinetics. In vivo efficacy of I was demonstrated in reducing TNFα levels in an acute murine model of inflammation (ED₅₀ = 1 mg/kg in LPS-induced TNFα production when dosed orally 1.5 h prior to LPS administration). The oral efficacy of I was further demonstrated in a chronic model of adjuvant arthritis in rats with established disease when administered orally (ED₅₀ = 4.5 mg/kg).

Journal of Medicinal Chemistry published new progress about 209919-30-2. 209919-30-2 belongs to chlorides-buliding-blocks, auxiliary class Chloride,Boronic acid and ester,Benzene,Boronic Acids,Boronic acid and ester, name is 4-Chloro-2-methylphenylboronic acid, and the molecular formula is C7H8BClO2, Synthetic Route of 209919-30-2.

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

Hudson, Sian R. published the artcileEvaluation of a Solid-Supported Tagging Strategy for Mass Spectrometric Analysis of Peptides, Related Products of chlorides-buliding-blocks, the publication is ACS Combinatorial Science (2012), 14(2), 97-100, database is CAplus and MEDLINE.

The authors have explored two divinylbenzene cross-linked polystyrene supports for use in a solid-supported N-terminal peptide tagging strategy. Resin-bound tags designed to be cleaved in a single step at the N-terminus of peptides have been devised and explored as peptide N-terminal tagging reagents (constructs) for subsequent mass spectrometric anal. While the brominated tagging approach shows promise, the use of these specific solid supports has drawbacks, in terms of tagging reaction scale, for real applications in proteomics.

ACS Combinatorial Science 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

Murugesan, Kathiravan published the artcileReductive amination using cobalt-based nanoparticles for synthesis of amines, Application In Synthesis of 350-30-1, the publication is Nature Protocols (2020), 15(4), 1313-1337, database is CAplus and MEDLINE.

In this protocol, the preparation of carbon-supported cobalt-based nanoparticles as efficient and practical catalysts for synthesis of different kinds of amines by reductive aminations was described. Template synthesis of a cobalt-triethylenediamine-terephthalic acid metal-organic framework on carbon and subsequent pyrolysis to remove the organic template resulted in the formation of supported single cobalt atoms and nanoparticles. Applying these catalysts, structurally diverse benzylic, aliphatic and heterocyclic primary, secondary and tertiary amines, including pharmaceutically relevant products, starting from inexpensive and easily accessible carbonyl compounds with ammonia, nitro compounds or amines and mol. hydrogen were synthesized. To prepare this cobalt-based catalyst took 26 h, and the reported catalytic reductive amination reactions could be carried out within 18-28 h.

Nature Protocols 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

Cavallaro, Gennara published the artcileReversibly stable thiopolyplexes for intracellular delivery of genes, Application of 3-Carboxy-N,N,N-trimethylpropan-1-aminium chloride, the publication is Journal of Controlled Release (2006), 115(3), 322-334, database is CAplus and MEDLINE.

Novel polyaspartamide non-viral carriers for gene therapy were synthesized by introducing, on the same polymer backbone, pos. charged groups, for electrostatic interactions with DNA, and thiol groups for the formation of disulfide bridges between polymer chains. The introduction of thiols was aimed to have a vector with low redox potential sensitivity: disulfide crosslinking in fact, being stable in extracellular environment, allowed either to have stable complexes in plasma, that can protect DNA from metabolism, or to be reduced inside the cell, where the excess of glutathion in reduced form maintains a low redox potential. The consequent destabilization of the complex after disulfide cleavage can release DNA selectively inside the cells. α,β-poly(N-2-hydroxyethyl)-D,L-aspartamide (PHEA) was used as starting polymer being a highly water-soluble synthetic polymer, already proposed with success as therapeutic carrier by our group. In this study, PHEA was firstly functionalized with ethylendiamine, obtaining a well defined copolymer with pendant primary amine groups (PHEA-EDA), to which N-succinimidyl 3-(2-pyridyldithio) propionate (SPDP) and 3-(carboxypropyl)trimethyl-ammonium chloride (CPTA) were linked in two subsequent steps, allowing the introduction of thiol and cationic groups resp. Finally DTT treatment lead to the final PHEA-EDA-SH-CPTA thiopolycation, named PESC. The present work describes the synthesis and characterization of the thiopolycation PESC. ¹H NMR spectroscopy detected the derivatization molar degrees in SPDP and CPTA; the formation of DNA complexes (thiopolyplexes), their stability in the presence of polyanions and the ability to release DNA under reductive conditions were studied by agarose gel electrophoresis. DNase II degradation study was carried out to detect the ability of thiopolyplex to stabilize DNA towards enzymic metabolism Thiopolyplexes were then characterized by Dynamic Light Scattering (DLS) and Zeta Potential anal. Finally, in vitro toxicity profile (MTT) and gene transfer efficiency (Luciferase assay) were carried out to evaluate thiopolyplex biocompatibility, safety and efficacy to be used as gene delivery system.

Journal of Controlled Release 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, Application of 3-Carboxy-N,N,N-trimethylpropan-1-aminium chloride.

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