Tag: M.W:200-300

Most of the compounds have physiologically active properties, and their biological properties are often attributed to the heteroatoms contained in their molecules, and most of these heteroatoms also appear in cyclic structures. A Journal, Tetrahedron Letters called A solid-phase synthetic route to N-acylated α-alkyl-D,L-homoserine lactones, Author is Ali, Ahmed I. M.; O’Donnell, Martin J.; Scott, William L.; Samaritoni, J. Geno, which mentions a compound: 17739-45-6, SMILESS is BrCCOC1CCCCO1, Molecular C7H13BrO2, Formula: C7H13BrO2.

A synthetic route to N-acylated α-alkyl-D,L-homoserine lactones was established using solid-phase unnatural peptide synthesis (UPS) and combinatorial chem. The application of UPS methodol. allowed access to racemic N-acylated homoserine lactones (D,L-AHLs) and their α-alkyl structural analogs (α-D,L-AHLs). The synthesis and characterization of a library of five D,L-AHLs and ten α-R1-D,L-AHLs prepared from resin-bound amino acids is reported.

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Pyridazine – Wikipedia,
Pyridazine | C4H4N2 – PubChem

The chemical properties of alicyclic heterocycles are similar to those of the corresponding chain compounds. Compound: 2-(2-Bromoethoxy)tetrahydro-2H-pyran, is researched, Molecular C7H13BrO2, CAS is 17739-45-6, about New GSH-responsive amphiphilic zinc(II) phthalocyanine micelles as efficient drug carriers for combinatorial cancer therapy, the main research direction is glutathione zinc phthalocyanine micelle drug carrier cancer therapy.Related Products of 17739-45-6.

Combination therapies for the treatment of cancer have attracted wide attention. The poor selectivity and biocompatibility of photosensitizers (PS) limit the use of combination therapies in chemotherapy and photodynamic therapy (PDT) for cancer. In this work, the Gender PS (mPEG-b-PLA-S-S-ZnPC), asym. zinc(II) phthalocyanine (ZnPC) and mono-methoxy oxygen-based polyethylene glycol-polylactic acid (mPEG-b-PLA) were designed and synthesized for PDT through disulfide bond (-S-S-). The amphipathic PS could be self-assembled into a micelle in aqueous solution, and paclitaxel (PTX) was encapsulated in the core of the micelle for chemotherapy (PTX/mPEG-b-PLA-S-S-ZnPc). The PTX/mPEG-b-PLA-S-S-ZnPc micelle was spherical with a uniform diameter of about 184 nm. At the first 48 h, the release behaviors of ZnPC and PTX at 10 mmol / L GSH were 30% and 75.2%, resp. These results suggested that GSH-responsive PTX/mPEG-b-PLA-S-S-ZnPc micelle was an active ingredient in combination therapies for cancer.

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Pyridazine – Wikipedia,
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Application In Synthesis of 2-(2-Bromoethoxy)tetrahydro-2H-pyran. Aromatic compounds can be divided into two categories: single heterocycles and fused heterocycles. Compound: 2-(2-Bromoethoxy)tetrahydro-2H-pyran, is researched, Molecular C7H13BrO2, CAS is 17739-45-6, about Pontimicrobium aquaticum gen. nov., sp. nov., a bacterium in the family Flavobacteriaceae isolated from seawater. Author is Janthra, Thidarat; Baek, Jihye; Kim, Jong-Hwa; Yoon, Jung-Hoon; Sukhoom, Ampaitip; Kim, Wonyong.

A Gram-stain-neg., yellow-pigmented, non-spore-forming, non-motile, rod-shaped, catalase-pos., strictly aerobic bacterial strain, designated CAU 1491T, was isolated from seawater and its taxonomic position was examined using a polyphasic approach. Cells of strain CAU 1491T grew optimally at 30°C, pH 7.5 and in 2.0% (w/v) NaCl. Phylogenetic anal. based on the 16S rRNA gene sequence of CAU 1491T showed that it formed a distinct lineage within the family Flavobacteriaceae as a sep. deep branch, with 97.0% or lower sequence similarity to representatives of the genera Lacinutrix, Gaetbulibacter and Aquibacter. The major cellular fatty acids of strain CAU 1491T were iso-C15:0, iso-C15:1 G, iso-C17:0 3-OH and summed feature 3. The polar lipid pattern consisted of diphosphatidylglycerol, phosphatidylserine, phosphatidylethanolamine and an unidentified phospholipid. The strain contained MK-6 as the sole respiratory quinone. Genome sequencing revealed that strain CAU 1491T has a genome size of 3.13 Mbp and a G + C content of 32.4 mol%. On the basis of the phenotypic, chemotaxonomic and genomic data, strain CAU 1491T represents a new genus and species in the family Flavobacteriaceae for which the name Pontimicrobium aquaticum gen. nov., sp. nov. is proposed. The type strain of Pontimicrobium aquaticum is CAU 1491T (= KCTC 72003T = NBRC 113695T).

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Pyridazine – Wikipedia,
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The three-dimensional configuration of the ester heterocycle is basically the same as that of the carbocycle. Compound: 2-(2-Bromoethoxy)tetrahydro-2H-pyran(SMILESS: BrCCOC1CCCCO1,cas:17739-45-6) is researched.Application In Synthesis of 2-(2-Bromoethoxy)tetrahydro-2H-pyran. The article 《Towards an Improved Design of MRI Contrast Agents: Synthesis and Relaxometric Characterisation of Gd-HPDO3A Analogues》 in relation to this compound, is published in Chemistry – A European Journal. Let’s take a look at the latest research on this compound (cas:17739-45-6).

The properties of LnIII-HPDO3A complexes as relaxation enhancers and paraCEST agents are essentially related to the hydroxylpropyl moiety. A series of three HPDO3A derivatives, with small modifications to the hydroxyl arm, were herein studied to understand how heightened control can be gained over the parameters involved in the design of these agents. A full 1H and 17O-NMR relaxometric anal. was conducted and demonstrated that increasing the length of the OH group from the lanthanide center significantly enhanced the water exchange rate of the gadolinium complex, but with a subsequent reduction in kinetic stability. Alternatively, the introduction of an addnl. Me group, which increased the steric bulk around the OH moiety, gave almost exclusively the TSAP isomer (95 %) as identified by 1H-NMR of the europium complex. The gadolinium analog of this complex also exhibited a very fast water exchange rate, but with no detectable loss of kinetic stability. This complex therefore demonstrates a notable improvement over Gd-HPDO3A.

There are many compounds similar to this compound(17739-45-6)COA of Formula: C7H13BrO2. if you want to know more, you can check out my other articles. I hope it will help you，maybe you’ll find some useful information.

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Pyridazine – Wikipedia,
Pyridazine | C4H4N2 – PubChem

The chemical properties of alicyclic heterocycles are similar to those of the corresponding chain compounds. Compound: 2-(2-Bromoethoxy)tetrahydro-2H-pyran, is researched, Molecular C7H13BrO2, CAS is 17739-45-6, about A solid-phase synthetic route to N-acylated α-alkyl-D,L-homoserine lactones, the main research direction is solid phase unnatural combinatorial peptide synthesis; acylated alkyl homoserine lactone solid phase synthesis.Related Products of 17739-45-6.

A synthetic route to N-acylated α-alkyl-D,L-homoserine lactones was established using solid-phase unnatural peptide synthesis (UPS) and combinatorial chem. The application of UPS methodol. allowed access to racemic N-acylated homoserine lactones (D,L-AHLs) and their α-alkyl structural analogs (α-D,L-AHLs). The synthesis and characterization of a library of five D,L-AHLs and ten α-R1-D,L-AHLs prepared from resin-bound amino acids is reported.

There are many compounds similar to this compound(17739-45-6)Related Products of 17739-45-6. if you want to know more, you can check out my other articles. I hope it will help you，maybe you’ll find some useful information.

Reference:
Pyridazine – Wikipedia,
Pyridazine | C4H4N2 – PubChem

Quality Control of 2-(2-Bromoethoxy)tetrahydro-2H-pyran. The mechanism of aromatic electrophilic substitution of aromatic heterocycles is consistent with that of benzene. Compound: 2-(2-Bromoethoxy)tetrahydro-2H-pyran, is researched, Molecular C7H13BrO2, CAS is 17739-45-6, about A combinatory approach towards the design of organic polymer luminescent materials. Author is Wang, Tao; Su, Xiaoge; Zhang, Xuepeng; Huang, Wenhuan; Huang, Linkun; Zhang, Xingyuan; Sun, Xiang; Luo, Yi; Zhang, Guoqing.

Room-temperature phosphorescent (RTP) materials have been widely used in sensing, imaging and display technol. The ability to predict and modulate RTP properties, such as emission color and lifetime, is particularly important for the design of rational materials. Here, we show that by incorporating three different types of acceptor moieties into a polylactide (PLA)-substituted carbazole donor, RTP with different emission colors and lifetimes (with an absolute quantum yield of up to 39.4%) could be generated. Specifically, the chem. conjugation between an n-π* type of luminophore and a π-π* one most likely results in dual RTP while the conjugation between two π-π* types of luminophores produces fluorescence-RTP (F-RTP) dual emission. The consistency between the exptl. results and theor. calculations further validates the observation. To demonstrate the versatility and application potential of these purely organic, biocompatible materials, aqueous nanoparticles were fabricated and used as high-contrast cell imaging agents, given the large Stokes shift of RTP materials.

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Pyridazine – Wikipedia,
Pyridazine | C4H4N2 – PubChem

Quality Control of 2-(2-Bromoethoxy)tetrahydro-2H-pyran. The fused heterocycle is formed by combining a benzene ring with a single heterocycle, or two or more single heterocycles. Compound: 2-(2-Bromoethoxy)tetrahydro-2H-pyran, is researched, Molecular C7H13BrO2, CAS is 17739-45-6, about Helicates with Ether-Substituted Catechol Esters as Ligands. Author is Mevissen, Christian; Kwamen, A. Carel N.; Himmel, Leonard; Chen, Xiaofei; Brueckner, Matthias; Huda, Saskia; Goeb, Christian; Jenniches, Judith; Oppel, Iris; Ward, Jas S.; Rissanen, Kari; Albrecht, Markus.

Mono- or biscatechol esters with ether-type substituents or spacers form either triple lithium bridged dimeric helicates or triple stranded helicates with the ability to bind three lithium cations in their interior. Hierarchical helicates with ether or thioether substituents show in solution a monomer-dimer equilibrium which is independent of the heteroatom in the ester substituent. However, dimerization constants are significantly lower than for corresponding alkyl derivatives Dinuclear helicates with oligoether spacers are well obtained in the presence of lithium cations. Upon removal of the cations the helicates expand and successive addition of LiCl results in compression again.

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Pyridazine – Wikipedia,
Pyridazine | C4H4N2 – PubChem

Synthetic Route of C7H13BrO2. The reaction of aromatic heterocyclic molecules with protons is called protonation. Aromatic heterocycles are more basic than benzene due to the participation of heteroatoms. Compound: 2-(2-Bromoethoxy)tetrahydro-2H-pyran, is researched, Molecular C7H13BrO2, CAS is 17739-45-6, about Tuning the Mechanical Properties of a Polymer Semiconductor by Modulating Hydrogen Bonding Interactions. Author is Zheng, Yu; Ashizawa, Minoru; Zhang, Song; Kang, Jiheong; Nikzad, Shayla; Yu, Zhiao; Ochiai, Yuto; Wu, Hung-Chin; Tran, Helen; Mun, Jaewan; Zheng, Yu-Qing; Tok, Jeffrey B.-H.; Gu, Xiaodan; Bao, Zhenan.

Conjugation breakers (CBs) with different H-bonding chemistries and linker flexibilities are designed and incorporated into a diketopyrrolopyrrole (DPP)-based conjugated polymer backbone. The effects of H-bonding interactions on polymer semiconductor morphol., mech. properties, and elec. performance are systematically investigated. We observe that CBs with an H-bonding self-association constant >0.7 or a denser packing tendency are able to induce higher polymer chain aggregation and crystallinity in as-casted thin films, resulting in a higher modulus and crack on-set strain. Addnl., the rDoC (relative degree of crystallinity) of the stretched thin film with the highest crack on-set strain only suffers a small decrease, suggesting the main energy dissipation mechanism is the breakage of H-bonding interactions. By contrast, other less stretchable polymer films dissipate strain energy through the breakage of crystalline domains, indicated by a drastic decrease in rDoC. Furthermore, we evaluate their elec. performances under mech. strain in fully stretchable field-effect transistors. The polymer with the highest crack on-set strain has the least degradation in mobility as a function of strain. Overall, these observations suggest that we can aptly tune the mech. properties of a polymer semiconductor by modulating intermol. interactions, such as H-bonding chem. and linker flexibility. Such understanding provides mol. design guidelines for future stretchable semiconductors.

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Pyridazine – Wikipedia,
Pyridazine | C4H4N2 – PubChem

HPLC of Formula: 17739-45-6. Aromatic heterocyclic compounds can also be classified according to the number of heteroatoms contained in the heterocycle: single heteroatom, two heteroatoms, three heteroatoms and four heteroatoms. Compound: 2-(2-Bromoethoxy)tetrahydro-2H-pyran, is researched, Molecular C7H13BrO2, CAS is 17739-45-6, about Antibacterial Activity of Hexadecynoic Acid Isomers toward Clinical Isolates of Multidrug-Resistant Staphylococcus aureus. Author is Sanabria-Rios, David J.; Morales-Guzman, Christian; Mooney, Joseph; Medina, Solymar; Pereles-De-Leon, Tomas; Rivera-Roman, Ashley; Ocasio-Malave, Carlimar; Diaz, Damarith; Chorna, Nataliya; Carballeira, Nestor M..

the structural characteristics that impart antibacterial activity to C16 alkynoic fatty acids (aFA) were further investigated. The syntheses of hexadecynoic acids (HDA) containing triple bonds at C-3, C-6, C-8, C-9, C-10, and C-12 were carried out in 4 steps and with an overall yield of 34-78%. In addition, HDA analogs containing a sulfur atom at either C-4 or C-5 were also prepared in 69-77% overall yields, resp. the triple bond at C-2 is pivotal for the antibacterial activity displayed by 2-HDA, while the farther the position of the triple bond from the carbonyl group, the lower its bactericidal activity against gram-pos. bacteria, including clin. isolates of methicillin-resistant Staphylococcus aureus (CIMRSA) strains. The potential of 2-HDA as an antibacterial agent was also assessed in 5 CIMRSA strains that were resistant to Ciprofloxacin (Cipro) demonstrating that 2-HDA was the most effective treatment in inhibiting their growth when compared with either Cipro alone or equimolar combinations of Cipro and 2-HDA. Moreover, it was proved that the inhibition of S. aureus DNA gyrase can be linked to the antibacterial activity displayed by 2-HDA. Finally, it was determined that the ability of HDA analogs to form micelles can be linked to their decreased activity against gram-pos. bacteria, since critical micellar concentrations of 50-300 μg/mL were obtained.

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Pyridazine – Wikipedia,
Pyridazine | C4H4N2 – PubChem

Application In Synthesis of 2-(2-Bromoethoxy)tetrahydro-2H-pyran. Aromatic heterocyclic compounds can also be classified according to the number of heteroatoms contained in the heterocycle: single heteroatom, two heteroatoms, three heteroatoms and four heteroatoms. Compound: 2-(2-Bromoethoxy)tetrahydro-2H-pyran, is researched, Molecular C7H13BrO2, CAS is 17739-45-6, about Description of the bacterial RNA polymerase inhibitor GE23077-producer Actinomadura sp. NRRL B-65521T as Actinomadura lepetitiana sp. nov. Author is Dalmastri, Claudia; Gastaldo, Luciano; Berini, Francesca; Marinelli, Flavia; Marcone, Giorgia Letizia.

The filamentous actinomycete that produces the antibiotic GE23077 was isolated by the Lepetit Research Group from a soil sample collected in Thailand, and it was classified as a member of the genus Actinomadura on the basis of its morphol. and cell-wall composition Phylogenetic anal. based on 16S rRNA gene sequences indicated that this strain formed a distinct monophyletic line within the genus Actinomadura, and it was most closely related to Actinomadura bangladeshensis DSM 45347T (99.31% similarity) and Actinomadura mexicana DSM 44485T (98.94%). The GE23077-producing strain formed an extensively branched, non-fragmented vegetative mycelium; no pseudosporangia were formed and the arthrospores were organized in slightly twisted chains. The cell wall contained meso-2,6-diaminopimelic acid and the diagnostic sugar was madurose. The predominant menaquinone was MK-9(H6), with minor amounts of MK-9(H8) and MK-9(H4). The diagnostic phospholipids were phosphatidylinositol and diphosphatidylglycerol. The major cellular fatty acids were C16:0 and tuberculostearic acid (10-methyloctadecanoic acid), followed by minor amounts of C18:1ω9c, C16:1ω7c and 10-methylheptadecanoic acid. The genomic DNA G + C content was 71.77 mol%. Significant differences in the morphol., chemotaxonomic and biochem. data, and the low DNA-DNA relatedness between the GE23077-producing strain and closely related type strains clearly demonstrate that it represents a novel species of the genus Actinomadura, for which the name Actinomadura lepetitiana sp. nov. is proposed. The type strain is NRRL B-65521T(= LMG 31258T = DSM 109019T).

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Pyridazine – Wikipedia,
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