Month: April 2022

Application of 693-67-4. The fused heterocycle is formed by combining a benzene ring with a single heterocycle, or two or more single heterocycles. Compound: 1-Bromoundecane, is researched, Molecular C11H23Br, CAS is 693-67-4, about Direct Trifluoromethoxylation without OCF3-Carrier through In Situ Generation of Fluorophosgene. Author is Saiter, Jeremy; Guerin, Thomas; Donnard, Morgan; Panossian, Armen; Hanquet, Gilles; Leroux, Frederic R..

The method represented the preparation of a range of trifluoromethoxylated structures R-OCF3 [R = undecanyl, (CH2)2Ph, 4-BrC6H4CH2, etc.] with no use of an intermediate trifluoromethoxylating reagent, but in situ construction and use of the F3CO anion as a salt, avoiding the presence of a useless side-product resulting from activation of an OCF3 carrier.

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Tetrahydroisoquinoline – Wikipedia,
1,2,3,4-Tetrahydroisoquinoline | C9H11N – PubChem

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, Molecular Photochemistry called Mechanism of cis-trans photoisomerization of dichlorodipyridineplatinum,(II), Author is Moggi, Luca; Varani, Graziano; Sabbatini, Nanda; Balzani, Vincenzo, which mentions a compound: 15227-42-6, SMILESS is [Cl-][Pt+2]([N]1=CC=CC=C1)([Cl-])[N]2=CC=CC=C2, Molecular C10H10Cl2N2Pt, Computed Properties of C10H10Cl2N2Pt.

The photochem. behavior of cis- and trans-Pt(py)2Cl2 in CHCl3 solutions has been investigated using 313 nm light. The cis isomer undergoes 2 simultaneous photoreactions, one being an intramol. photoisomerization process (Φisom ∼0.04) and the other a photodissociation reaction involving the pyridine ligand (Φdiss ∼ 0.025). This latter photoreaction provides an intermol. path for the cis → trans isomerization since its products (namely, free pyridine and Pt-containing species) recombine thermally to give cis- and trans-Pt(py)2Cl2 in a 2:1 ratio. The trans isomer undergoes photoisomerization and pyridine release but with much lower quantum yields (∼0.001). Qual. results concerning the photochem. behavior of the above complexes in MeOH solutions upon 254 or 313 nm irradiation are also reported.

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Tetrahydroisoquinoline – Wikipedia,
1,2,3,4-Tetrahydroisoquinoline | C9H11N – PubChem

Application In Synthesis of cis-Dichlorobis(pyridine)platinum(II). Aromatic compounds can be divided into two categories: single heterocycles and fused heterocycles. Compound: cis-Dichlorobis(pyridine)platinum(II), is researched, Molecular C10H10Cl2N2Pt, CAS is 15227-42-6, about The effects of single administration of an antitumor platinum compound on ornithine decarboxylase activity in certain tissues of mice bearing L1210 leukemia. Author is Morris, Carl R.; Atkins, Loretta M.; Gale, Glen R..

A single dose of cis-dichloro(dipyridine)platinum(II) [15227-42-6], when given to mice bearing 1-day-old L1210 leukemia, suppressed the increase of spleen and liver ornithine decarboxylase (ODC) [9024-60-6] activity which occurs concomitantly with development of the leukemia. The inhibition of ODC, the rate-limiting enzyme in polyamine synthesis, appeared to correlate with the prolonged chemotherapeutic efficacy of a single dose of the platinum complex. These observations suggest an addnl. mechanism by which platinum complexes express their antitumor actions and, in addition, support the view that polyamine synthesis and excretion patterns can be used as predictors of chemotherapeutic response.

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Tetrahydroisoquinoline – Wikipedia,
1,2,3,4-Tetrahydroisoquinoline | C9H11N – PubChem

Reference of Picolinamide. 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: Picolinamide, is researched, Molecular C6H6N2O, CAS is 1452-77-3, about Ethene-1,1,2,2-tetracarbonitrile and Methanol in the Methylating Reaction of Tertiary Amines to the Quaternary Ammonium Compounds of 1,1-Dicyano-2-methoxy-2-oxoethane-1-ide. Author is Sheverdov, Vladimir P.; Davydova, Vera V.; Nasakin, Oleg E.; Mar’yasov, Maksim A.; Lodochnikova, Olga A..

We discovered a new method to methylate tertiary amines such as urotropine, triethylamine, pyridine, 2-methylpyridine, 4-acetylpyridine, and isonicotinamide, to quaternary ammonium compounds, with 1,1-dicyano-2-methoxy-2-oxoethane-1-ide being the counterion. Methyl-1,3,5,7-tetraazaadamantan-1-ium 1,1-dicyano-2-methoxy-2-oxoethane-1-ide, N,N-diethyl-N-methylethanaminium 1,1-dicyano-2-methoxy-2-oxoethane-1-ide, and substituted-methylpyridinium 1,1-dicyano-2-methoxy-2-oxoethane-1-ides were synthesized. Quaternary ammonium compounds of 1,1-dicyano-2-methoxy-2-oxothane-1-ide were synthesized within a single stage by stirring methanol solutions of tertiary amines with ethene-1,1,2,2-tetracarbonitrile (ETCN) at room temperature In the reaction of ETCN with tertiary amines in methanol, processes occur that form the 1,1-dicyano-2-methoxy-2-oxoethane-1-ide fragment with simultaneous N-methylation. Crystal structures based on X-ray diffraction anal. of the obtained compounds were studied.

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Tetrahydroisoquinoline – Wikipedia,
1,2,3,4-Tetrahydroisoquinoline | C9H11N – PubChem

Name: 1-Bromoundecane. The protonation of heteroatoms in aromatic heterocycles can be divided into two categories: lone pairs of electrons are in the aromatic ring conjugated system; and lone pairs of electrons do not participate. Compound: 1-Bromoundecane, is researched, Molecular C11H23Br, CAS is 693-67-4, about Liquid crystal and photoluminescent properties of a series of symmetrical 1,2-bis(4-alkoxybenzylidene)hydrazines bearing long-tails of hydrocarbon chain. Author is Al-Karawi, Ahmed Jasim M.; OmarAli, Al-Ameen Bariz; Awad, Adil A.; Doungmo, Giscard; Terraschke, Huayna.

In this work, 1,2-bis[4-(n-alkoxy)benzylidene]hydrazine (n-alkoxy: O(CH2)nH, n = 11-18 or 20), a sym. series of azines (linear compounds with rod-like shape structure), were synthesized using a very simple two-step procedure as a part of our continuing effort in evaluating hydrophobic 1,2-disubstituted hydrazine compounds as photoluminescent liquid crystalline materials. The first step of the synthesis involved the alkylation of the OH group of 4-hydroxybenzaldehyde in basic medium using the Williamson method to obtain 4-alkoxybenzaldehydes. While the second step included the condensation reaction of hydrazine hydrate and appropriately 4-alkoxybenzaldehydes compounds (mole ratio 1:2, resp.) in acidic medium under ambient conditions. The prepared compounds were characterised and their structures elucidated depending upon IR (IR), UV-visible (UV-Vis), NMR (1HNMR, 13CNMR, DEPT NMR, 2D 1H-1H-COSY and 2D 1H-13C- HSQC) and elemental anal. (CHN). Liquid crystalline behavior and photoluminescent properties were studied using polarised light optical microscopy (POM), fluorescence emissions (FE), differential scanning calorimetry (DSC) and X-ray powder diffraction (XRD) techniques. The studies showed that all of these compounds were enantiotropic liquid crystalline materials exhibiting smectic (SmA and SmC) and nematic (droplet and thread) mesophases . The study also displayed that all of the prepared compounds were photoluminescent in the crystalline and liquid crystal states.

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Tetrahydroisoquinoline – Wikipedia,
1,2,3,4-Tetrahydroisoquinoline | C9H11N – PubChem

Safety of cis-Dichlorobis(pyridine)platinum(II). So far, in addition to halogen atoms, other non-metallic atoms can become part of the aromatic heterocycle, and the target ring system is still aromatic. Compound: cis-Dichlorobis(pyridine)platinum(II), is researched, Molecular C10H10Cl2N2Pt, CAS is 15227-42-6, about Experimental criteria for the applicability of the group model to stretching vibrations of the dichloroplatinum fragment in square planar complexes.

A correlation was found between the Pt-Cl bond length difference, Δr, and the distance, Δν, between the doublet components of the stretching vibration νClPt in cis[PtCl2LL’] complexes with 2 different ligands, L and L’. For Δr = 0-0.025 Å, a constant splitting Δν = 15-25 cm-1 was observed, but for Δr >0.03 Å Δν increased linearly with increasing Δr. The difference was explained in terms of sym. and asym. Pt-Cl bonds.

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Tetrahydroisoquinoline – Wikipedia,
1,2,3,4-Tetrahydroisoquinoline | C9H11N – PubChem

Product Details of 882562-40-5. The protonation of heteroatoms in aromatic heterocycles can be divided into two categories: lone pairs of electrons are in the aromatic ring conjugated system; and lone pairs of electrons do not participate. Compound: 3-(2,5-Dichloropyrimidin-4-yl)-1-(phenylsulfonyl)-1H-indole, is researched, Molecular C18H11Cl2N3O2S, CAS is 882562-40-5, about Targeting transcription regulation in cancer with a covalent CDK7 inhibitor. Author is Kwiatkowski, Nicholas; Zhang, Tinghu; Rahl, Peter B.; Abraham, Brian J.; Reddy, Jessica; Ficarro, Scott B.; Dastur, Anahita; Amzallag, Arnaud; Ramaswamy, Sridhar; Tesar, Bethany; Jenkins, Catherine E.; Hannett, Nancy M.; McMillin, Douglas; Sanda, Takaomi; Sim, Taebo; Kim, Nam Doo; Look, Thomas; Mitsiades, Constantine S.; Weng, Andrew P.; Brown, Jennifer R.; Benes, Cyril H.; Marto, Jarrod A.; Young, Richard A.; Gray, Nathanael S..

Tumor oncogenes include transcription factors that co-opt the general transcriptional machinery to sustain the oncogenic state, but direct pharmacol. inhibition of transcription factors has so far proven difficult. However, the transcriptional machinery contains various enzymic cofactors that can be targeted for the development of new therapeutic candidates, including cyclin-dependent kinases (CDKs). Here the authors present the discovery and characterization of a covalent CDK7 inhibitor, THZ1, which has the unprecedented ability to target a remote cysteine residue located outside of the canonical kinase domain, providing an unanticipated means of achieving selectivity for CDK7. Cancer cell-line profiling indicates that a subset of cancer cell lines, including human T-cell acute lymphoblastic leukemia (T-ALL), have exceptional sensitivity to THZ1. Genome-wide anal. in Jurkat T-ALL cells shows that THZ1 disproportionally affects transcription of RUNX1 and suggests that sensitivity to THZ1 may be due to vulnerability conferred by the RUNX1 super-enhancer and the key role of RUNX1 in the core transcriptional regulatory circuitry of these tumor cells. Pharmacol. modulation of CDK7 kinase activity may thus provide an approach to identify and treat tumor types that are dependent on transcription for maintenance of the oncogenic state.

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Reference:
Tetrahydroisoquinoline – Wikipedia,
1,2,3,4-Tetrahydroisoquinoline | C9H11N – PubChem

So far, in addition to halogen atoms, other non-metallic atoms can become part of the aromatic heterocycle, and the target ring system is still aromatic.Tun Nur Iskandar, Nur Amanina Juniasari; Guan-Yeow, Yeap; Maeta, Nobuyuki; Ito, Masato M.; Nakamura, Yoshiyuki; Gas, Katarzyna; Sawicki, Maciej researched the compound: 1-Bromoundecane( cas:693-67-4 ).Application of 693-67-4.They published the article 《Anisotropic and magnetic properties in non-metal and non-radical organic aggregates of tri-substituted phenyl derivatives》 about this compound( cas:693-67-4 ) in New Journal of Chemistry. Keywords: alkoxy Ph imine biphenyl ester preparation anisotropic magnetic property. We’ll tell you more about this compound (cas:693-67-4).

A new series of tri-substituted Ph derivatives containing an aromatic imine unit and biphenyl ester possessing various numbers of carbon atoms at the terminal alkoxy chain, OCnH2n+1 (n = 7-12), along with a lateral o-ethoxy substituent have been successfully prepared and characterized by CHN microanal. along with spectroscopic techniques (FTIR, 1H- and 13C-NMR). The texture observation under polarized light revealed that all the soft condensed materials exhibited an enantiotropic nematic (N) phase. The current studies have shown that the mesomorphic behavior is greatly influenced by the length of the alkoxy chains wherein the thermal stability of a tri-substituted Ph derivative will decrease if the terminal alkoxy chain is increased from n = 7 to 12. For the first time, these materials which do not possess any magnetic species in their structure, demonstrate magnetic interaction through naked eye observation as well as quant. measurement using a SQUID magnetometer.

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Reference:
Tetrahydroisoquinoline – Wikipedia,
1,2,3,4-Tetrahydroisoquinoline | C9H11N – PubChem

The preparation of ester heterocycles mostly uses heteroatoms as nucleophilic sites, which are achieved by intramolecular substitution or addition reactions. Compound: cis-Dichlorobis(pyridine)platinum(II)( cas:15227-42-6 ) is researched.Related Products of 15227-42-6.Howle, Jerry A.; Gale, Glen R.; Smith, Alayne B. published the article 《Proposed mode of action of antitumor platinum compounds based upon studies with cis-dichloro([G-3H]-dipyridine)platinum(II)》 about this compound( cas:15227-42-6 ) in Biochemical Pharmacology. Keywords: chloropyridine platinum tumor; DNA dichlorodipyridine platinum; erythrocyte dichlorodipyridine platinum; RNA dichlorodipyridine platinum. Let’s learn more about this compound (cas:15227-42-6).

The antitumor and antimitotic action of the pyridine-tritiated square-planar Pt complex cis-dichloro(dipyridine)platinum(II) (I) [15227-42-6] seems to depend on the dissociation of 1 or both chlorine atoms from the platinum atom. The resulting cationic, aquated species subsequently forms a bond with nucleic acid. I associate avidly with calf thymus DNA, high mol. weight yeast RNA, and bacterial and yeast tRNA, but not with bovine serum albumin, dextran, or purified erythrocyte membranes. Dialysis of the Pt-nucleic acid complexes in distilled water or NaCl results in loss of a portion of the original radioactivity. The Pt-DNA bond is resistant to dissociation by solubilization in alkali followed by trichloroacetic acid (TCA) precipitation Bonding of I to DNA in vitro is inhibited by NaCl; however, prior alkylation of the DNA with nitrogen mustard does not influence its subsequent bonding with I. I associate with intact Ehrlich ascites tumor cells in vitro at 2.deg. and 37.deg. and resists dissociation by washing with saline or TCA as well as solubilization in alkali followed by re-precipitation with TCA.

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Reference:
Tetrahydroisoquinoline – Wikipedia,
1,2,3,4-Tetrahydroisoquinoline | C9H11N – PubChem

Related Products of 693-67-4. The fused heterocycle is formed by combining a benzene ring with a single heterocycle, or two or more single heterocycles. Compound: 1-Bromoundecane, is researched, Molecular C11H23Br, CAS is 693-67-4, about Inhibition of bacterial growth and galactosyltransferase activity of WbwC by α, ω-bis(3-alkyl-1H-imidazolium)alkane salts: Effect of varying carbon content. Author is Kocev, Alexander; Melamed, Jacob; Wang, Shuo; Kong, Xianqi; Vlahakis, Jason Z.; Xu, Yaozu; Szarek, Walter A.; Brockhausen, Inka.

A series of compounds was designed and synthesized having two imidazolium rings separated by a polymethylene spacer and having alkyl substituents on each of the imidazolium rings. The compounds were assayed for their effects on the activity of galactosyltransferase WbwC, and also on the growth of Gram-neg. and Gram-pos. bacteria, as well as human cells. The inhibition observed on enzyme activities and cell growth was dependent on the total number of carbons in the spacer and the alkyl substituents on the imidazolium rings. These readily synthesized, achiral compounds have potential as antimicrobial and antiseptic agents.

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Reference:
Tetrahydroisoquinoline – Wikipedia,
1,2,3,4-Tetrahydroisoquinoline | C9H11N – PubChem