Tag: M.W=300-350

Haney, Conor M. published the artcileDynamic covalent side-chain cross-links via intermolecular oxime or hydrazone formation from bifunctional peptides and simple organic linkers, SDS of cas: 42074-68-0, the publication is Journal of Peptide Science (2014), 20(2), 108-114, database is CAplus and MEDLINE.

Peptide cyclization via chemoselective reactions between side chains has proven a useful strategy to control folded structure. We report here a method for the synthesis of side-chain to side-chain cyclic peptides based on the intermol. reaction between a linear peptide functionalized with two aminooxy or hydrazide side chains and an organic dialdehyde linker. A family of oxime-based and hydrazone-based cyclic products is prepared in a modular and convergent fashion by combination of unprotected linear peptide precursors and various small mol. linkers in neutral aqueous buffer. The side-chain to side-chain linkages that result can alter peptide folding behavior. The dynamic covalent nature of the Schiff bases in the cyclic products can be utilized to create mixtures where product composition changes in response to exptl. conditions. Thus, a linear peptide precursor can select one organic linker from a mixture, and a cyclic product can dynamically exchange the small mol. component of the macrocycle. Copyright © 2014 European Peptide Society and John Wiley & Sons, Ltd.

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, SDS of cas: 42074-68-0.

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

Kikuchi, Haruhisa published the artcileIsolation of a Cyclic Depsipeptide, Aspergillicin F, and Synthesis of Aspergillicins with Innate Immune-Modulating Activity, Safety of 2-Chlorotrityl chloride, the publication is Journal of Natural Products (2015), 78(8), 1949-1956, database is CAplus and MEDLINE.

Innate immunity is the front line of self-defense against microbial infection. After searching for natural compounds that regulate innate immunity using an ex vivo Drosophila culture system, we identified a new cyclic depsipeptide, aspergillicin F, from the fungus Aspergillus sp., as an innate immune suppressor. The total synthesis and biol. evaluation of the aspergillicin family, including aspergillicin F, were performed, revealing that slight structural differences in the side chains of amino acid residues alter innate immunity-regulating activity.

Journal of Natural Products 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, Safety of 2-Chlorotrityl chloride.

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

Hsu, Ling-Huang published the artcileNanofibrous hydrogels self-assembled from naphthalene diimide (NDI)/amino acid conjugates, HPLC of Formula: 42074-68-0, the publication is RSC Advances (2015), 5(26), 20410-20413, database is CAplus.

The combination of a naphthalene diimide (NDI) group and a single amino-acid of serine (Ser) or lysine (Lys) can be used to promote the formation of a supramol. hydrogel, which indicates the aromatic amino acid is not necessary to be used in the structural design of NDI-capped small mol. hydrogelators. An equimolar ratio of NDI-Ser and NDI-Lys can form a stable hydrogel under neutral conditions and its gel-to-sol transition temperature is higher than 37 °C. This work, as the first example of NDI-containing hydrogelators without aromatic rings in the side chains of amino acids, illustrates a new approach to design NDI-capped supramol. hydrogels.

RSC Advances 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, HPLC of Formula: 42074-68-0.

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

Li, Jiting published the artcileSynthesis and properties of pyridyl dithienyl ethene axially coordinated to Mn(II)-porphyrin, COA of Formula: C15H14Cl2S2, the publication is Yingyong Huaxue (2017), 34(4), 402-407, database is CAplus.

Organic photochromic materials have bottleneck problems including low photon yield, poor fatigue resistance and destruction of recorded information after read-out in practical application. In this paper the pyridyl dithienyl ethene axially coordinated to Mn(II)-porphyrin was synthesized by 1-(5-chloro-2-methylthien-3-yl)-2-[5-pyridyl-2-methylthien-3-yl] cyclopentene via halogenations, Friedel-Crafts acylation, McMurry coupling and Suzuki coupling by using 2-methyl-thiophene as the starting material coordinating with Mn(II)-porphyrin. Photochromic properties and fatigue resistance of the target compound were investigated by UV-visible (UV-Vis) spectrum, and the function of nondestructive readout was also reached by fluorescence spectrum. The exptl. results indicate that the target compound possesses good photochromic properties and fatigue resistance, and the ”write-read-erase” process can be achieved by using the light of 254 nm, 490 nm, and 550 nm, resp., without concomitant loss of data which is expected to be used in binary storage devices.

Yingyong Huaxue 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, COA of Formula: C15H14Cl2S2.

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

Yu, Chuanming published the artcileDesign, syntheses and photochromic properties of dithienylcyclopentene optical molecular switches, Application of 5-Chloro-3-[2-(5-chloro-2-methylthien-3-yl)cyclopent-1-en-1-yl]-2-methylthiophene, the publication is Journal of Physical Organic Chemistry (2017), 30(1), n/a, database is CAplus.

A kind of basal diarylethene through an easy synthetic procedure was synthesized and characterized, and a Suzuki coupling reaction was frequently operated to obtain the diarylethenes derivatives with some vivid functional groups like bromo, amido and pyridine. Two methods for derivatives of these switches contain porphyrins were described. All of their spectroscopic and photochromic properties were studied and intercompared. It is indicated that the difference in electron densities of the π-conjugated system of the closed forms has effects upon the absorption maxima in visible region of UV-Vis spectra. Dithienylcyclopentenes linked to porphyrins could emit luminescence substantially that display potentials to be used in the applications of nondestructive readout upon binary data storage and smart materials.

Journal of Physical Organic Chemistry 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 C9H7N5O, Application of 5-Chloro-3-[2-(5-chloro-2-methylthien-3-yl)cyclopent-1-en-1-yl]-2-methylthiophene.

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

Yu, Chuanming published the artcileNew photochromic dithienylethene based on porphyrin for a nondestructive information processing, Recommanded Product: 5-Chloro-3-[2-(5-chloro-2-methylthien-3-yl)cyclopent-1-en-1-yl]-2-methylthiophene, the publication is Pharma Chemica (2016), 8(22), 12-16, database is CAplus.

A new 1-[2-methyl-5-((4-tetraphenylporphyrinphenyl)-3-thienyl)]-2-[2-methyl-3-thienyl]-cyclopentene (DTE-TPP) combined by 3,3′-(1-Cyclopentene-1,2-diyl)bis(5-chloro-2-methylthiophene) (DTE) and tetraphenylporphyrin (TPP) can transform between the open isomer and the closed isomer upon the irradiation of UV or visible light. Herein, they can be used to write binary data. Furthermore, the open form can emit luminescence but the closed cannot while irradiated in another light that can’t cause optical chem. reactions. Therefore, the data can be read out without damage.

Pharma Chemica 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 C9H21NO3, Recommanded Product: 5-Chloro-3-[2-(5-chloro-2-methylthien-3-yl)cyclopent-1-en-1-yl]-2-methylthiophene.

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

Yu, Chuanming published the artcileNew photochromic dithienylethene based on porphyrin for a nondestructive information processing, Formula: C15H14Cl2S2, the publication is Archives of Applied Science Research (2016), 8(12), 18-23, database is CAplus.

A new 1-[2-methyl-5-(4-tetraphenylporphyrinphenyl)-3-thienyl]-2-[2-methyl-3-thienyl]-cyclopentene (DTE-TPP) combined by 3,3-(1-Cyclopentene-1,2-diyl)bis(5-chloro-2-methylthiophene) (DTE) and tetraphenylporphyrin (TPP) can transform between the open isomer and the closed isomer upon the irradiation of UV or visible light. Herein, they can be used to write binary data. Furthermore, the open form can emit luminescence but the closed cannot while irradiated in another light that cant cause optical chem. reactions. Therefore, the data can be read out without damage.

Archives of Applied Science Research 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 C10H25NO2Si, Formula: C15H14Cl2S2.

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

Jiang, Linhai published the artcileElaborate Supramolecular Architectures Formed by Co-Assembly of Metal Species and Peptoid Macrocycles, HPLC of Formula: 42074-68-0, the publication is Crystal Growth & Design (2021), 21(7), 3889-3901, database is CAplus.

Peptoids are a family of sequence-specific oligomers capable of mimicking the structure and function of polypeptides. The innate folding and self-assembly capabilities of peptoid oligomers can be enhanced by the presence of coordinated metal ions. The authors explore the co-assembly of water-soluble hexameric and tetrameric peptoid macrocycles with Na⁺ and K⁺ ions. Solid-state structures were solved for six cyclopeptoid-metal coassemblies by x-ray diffraction using single crystals grown from fully aqueous solutions Subtle variations in the peptoid oligomer composition give rise to dramatic alterations in the supramol. assemblies. Some structures feature extensively hydrated porous architectures that include unusual metal ion clusters. The ability to study the metallopeptoid structure at an at. resolution in crystals obtained from an aqueous solution is an important advancement, as most previous peptoid crystal structures were obtained from nonaqueous or cosolvent solutions These results will facilitate the design of peptoids and other foldamers for the assembly of supramol. frameworks.

Crystal Growth & Design 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, HPLC of Formula: 42074-68-0.

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

Li, Ziyong published the artcilePhoto-responsive [2]catenanes: synthesis and properties, COA of Formula: C15H14Cl2S2, the publication is Organic & Biomolecular Chemistry (2014), 12(39), 7702-7711, database is CAplus and MEDLINE.

A series of novel dithienylethene-based macrocycles containing ammonium moieties has been synthesized. They have been employed as templates to construct [2]catenanes showing their photoisomerization properties by means of a dynamic covalent chem. approach. Their structures have been reliably confirmed by NMR, ESI-MS or MALDI-QTOF-MS, and elemental anal., and their energy-minimized structures of open- and closed-ring isomers were investigated by the theor. calculation Investigation of the photochromic properties of these dithienylethene-based [2]catenanes has revealed good reversibility and excellent fatigue resistance upon irradiation with UV or visible light. Notably, formation of the [2]catenanes enhanced the photochromic properties compared with those of the corresponding macrocyclic ammonium salt, implying that the non-covalently interacting components of the [2]catenanes could affect the photoswitchable properties.

Organic & Biomolecular Chemistry 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, COA of Formula: C15H14Cl2S2.

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

Sumiya, Youki published the artcileA diarylethene annulated isomer as a highly-conductive molecular wire evaluated by the exchange interaction between two nitroxides, Safety of 5-Chloro-3-[2-(5-chloro-2-methylthien-3-yl)cyclopent-1-en-1-yl]-2-methylthiophene, the publication is Chemical Communications (Cambridge, United Kingdom) (2020), 56(16), 2447-2450, database is CAplus and MEDLINE.

Bis(imino nitroxide) bridged by a diarylethene annulated isomer was synthesized and the exchange interaction between the two radicals was determined by the simulation of the ESR spectrum. The exchange interaction was found to be as large as that of the closed-ring isomer, suggesting that the annulated isomer can be used as a highly-conductive mol. wire in mol. electronics.

Chemical Communications (Cambridge, United Kingdom) 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 C23H43NP2, Safety of 5-Chloro-3-[2-(5-chloro-2-methylthien-3-yl)cyclopent-1-en-1-yl]-2-methylthiophene.

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