Tag: M.W:400-500

De Bettencourt-Dias, Ana; Winkler, Krzysztof; Hayashi, Akari; Balch, Alan L. published an article about the compound: cis-Dichlorobis(pyridine)platinum(II)( cas:15227-42-6,SMILESS:[Cl-][Pt+2]([N]1=CC=CC=C1)([Cl-])[N]2=CC=CC=C2 ).Application In Synthesis of cis-Dichlorobis(pyridine)platinum(II). Aromatic heterocyclic compounds can be classified according to the number of heteroatoms or the size of the ring. The authors also want to convey more information about this compound (cas:15227-42-6) through the article.

The formation of electroactive films containing [60]fullerene and Pd or Pt was observed for solutions with the C60 and different metal complexes, Pd(PhCN)2Cl2, [Pd(CH3CO2)2]3, Pd(CH3CO2)2, [Pt(μ-Cl)Cl(C2H4)]2, cis-PtCl2(py)2, trans-PtCl2(py)2, and PtI2(py)2. Characterization of the film compositions by IR spectroscopy, MS and XPS shows that the films contain solely C60 and metal, as well as cations of the supporting electrolyte of the growth solution, that get incorporated during the cathodic growth process. Scanning electron micrographs of the films show that these consist mainly of spheres of ∼100 nm diameter and that the film thickness can be controlled by the number of cycles used during the growth process. The films show conductivity in the potential range of growth and this conductivity is both electronic and ionic and have thus potential application in high-d. energy storage devices.

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

Name: 3-(2,5-Dichloropyrimidin-4-yl)-1-(phenylsulfonyl)-1H-indole. 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: 3-(2,5-Dichloropyrimidin-4-yl)-1-(phenylsulfonyl)-1H-indole, is researched, Molecular C18H11Cl2N3O2S, CAS is 882562-40-5, about Covalent targeting of remote cysteine residues to develop CDK12 and CDK13 inhibitors. Author is Zhang, Tinghu; Kwiatkowski, Nicholas; Olson, Calla M.; Dixon-Clarke, Sarah E.; Abraham, Brian J.; Greifenberg, Ann K.; Ficarro, Scott B.; Elkins, Jonathan M.; Liang, Yanke; Hannett, Nancy M.; Manz, Theresa; Hao, Mingfeng; Bartkowiak, Bartlomiej; Greenleaf, Arno L.; Marto, Jarrod A.; Geyer, Matthias; Bullock, Alex N.; Young, Richard A.; Gray, Nathanael S..

Cyclin-dependent kinases 12 and 13 (CDK12 and CDK13) play critical roles in the regulation of gene transcription. However, the absence of CDK12 and CDK13 inhibitors has hindered the ability to investigate the consequences of their inhibition in healthy cells and cancer cells. Here we describe the rational design of a first-in-class CDK12 and CDK13 covalent inhibitor, THZ531. Co-crystallization of THZ531 with CDK12-cyclin K indicates that THZ531 irreversibly targets a cysteine located outside the kinase domain. THZ531 causes a loss of gene expression with concurrent loss of elongating and hyperphosphorylated RNA polymerase II. In particular, THZ531 substantially decreases the expression of DNA damage response genes and key super-enhancer-associated transcription factor genes. Coincident with transcriptional perturbation, THZ531 dramatically induced apoptotic cell death. Small mols. capable of specifically targeting CDK12 and CDK13 may thus help identify cancer subtypes that are particularly dependent on their kinase activities.

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

The three-dimensional configuration of the ester heterocycle is basically the same as that of the carbocycle. Compound: cis-Dichlorobis(pyridine)platinum(II)(SMILESS: [Cl-][Pt+2]([N]1=CC=CC=C1)([Cl-])[N]2=CC=CC=C2,cas:15227-42-6) is researched.Product Details of 1452-77-3. The article 《ESR of hot ions: low spin platinum(III) complex ions produced by γ-irradiation》 in relation to this compound, is published in Bulletin of the Chemical Society of Japan. Let’s take a look at the latest research on this compound (cas:15227-42-6).

Tervalent Pt complex ions were observed by ESR upon γ-irradiation of both bivalent and quadrivalent complexes. From their g-values, the tervalent complex ions can be classified into 2 types, one axially sym. and the other orthorhombic, the former having typical g-values of 2(g‖) and 2.4(g.perp.), and the latter a g1-value slightly lower than the free electron value of 2.0023. The hyperfine interaction due to 195Pt is 1 order of magnitude larger than that in Co complexes with 3d7 low spin configuration, indicating that the configuration interaction involving 6s-orbital is more important than that for 3d transition metal complexes involving 4s-orbital, and that 5d electrons penetrate deeply into inner shells, resulting in core polarization.

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

Computed Properties of C10H10Cl2N2Pt. The fused heterocycle is formed by combining a benzene ring with a single heterocycle, or two or more single heterocycles. Compound: cis-Dichlorobis(pyridine)platinum(II), is researched, Molecular C10H10Cl2N2Pt, CAS is 15227-42-6, about Antiproliferative activity of some cis-/trans-platinum(II) complexes on HeLa cells. Author is Arandjelovic, S.; Tesic, Z.; Juranic, Z.; Radulovic, S.; Vrvic, M.; Potkonjak, B.; Ilic, Z..

Platinum(II) complexes [PtA2X2], where A is ligand: ammonia (NH3), pyridine (Py); and X is ligand: chloride ion (CI-), bromide ion (Br-), iodide ion (I-), thiocyanato ion (SCN-); four compounds have different structural formulas ([Pt(NH2OH)2(NH3)2]Cl2), and cis-/trans-Pt(Gly)2, where Gly is bidentate glycinato ligand were examined for their antiproliferative activity in HeLa cells. Results of the MTT assay, showed that six cis- and one trans-platinum(II) complexes exhibited cytotoxicity (IC50) ranging between 5 and 33 μM. Most of the cis-platinum(II) isomers caused significant alteration of cell cycle phases progression, and induced apoptosis in degree that varied among different compounds, as evaluated using flowcytometry and morphol. study. Spectrophotometric anal. (AAS) indicated that there is no correlation between intracellular platinum(II) accumulation and cytotoxicity of tested complexes.

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

In organic chemistry, atoms other than carbon and hydrogen are generally referred to as heteroatoms. The most common heteroatoms are nitrogen, oxygen and sulfur. Now I present to you an article called Photochemical H2 evolution from water catalyzed by a dichloro(diphenylbipyridine)platinum(II) derivative tethered to multiple viologen acceptors, published in 2016, which mentions a compound: 15227-42-6, mainly applied to photocatalyst hydrogen water dichlorodiphenylbipyridine platinum viologen, Recommanded Product: cis-Dichlorobis(pyridine)platinum(II).

A new single-component photocatalyst for the reduction of water to H2, a dichloro(dpbpy)platinum(II) derivative (dpbpy = 4,4′-diphenyl-2,2′-bipyridine) tethered to four pendant viologen acceptors (1), is shown to exhibit twice higher photocatalytic efficiency than the previously reported dichloro(bpy)-platinum(II) analog (2; bpy = 2,2′-bipyridine), consistent with the higher absorptivity of 1 at the metal-to-ligand charge transfer (1MLCT) band due to the larger π-conjugation in dpbpy relative to bpy.

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

In general, if the atoms that make up the ring contain heteroatoms, such rings become heterocycles, and organic compounds containing heterocycles are called heterocyclic compounds. An article called Redistribution of ligands in [Rh(CO)A(PPh3)2][Pt(py)Cl3], published in 1990, which mentions a compound: 15227-42-6, Name is cis-Dichlorobis(pyridine)platinum(II), Molecular C10H10Cl2N2Pt, Application of 15227-42-6.

[Rh(CO)A(PPh3)2][Pt(py)Cl3].DMF (I; A = py, 4-picoline (pic), 2,2′-bipyridine (bpy), 1,10-phenanthroline (phen)) were prepared by the reaction of [Rh(CO)A(PPh3)2]NO3 with K[Pt(py)Cl3] in DMF. For I (A = py, pic) at room temperature in DMF, Me2CO, CHCl3 or C6H6 after 15-30 min., redistribution of ligands occurred with the formation of Rh(CO)(PPh3)2Cl and cis-Pt(py)ACl2. I (A = bpy, phen) are stable in solution

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Tetrahydroisoquinoline – Wikipedia,
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Recommanded Product: cis-Dichlorobis(pyridine)platinum(II). The mechanism of aromatic electrophilic substitution of aromatic heterocycles is consistent with that of benzene. Compound: cis-Dichlorobis(pyridine)platinum(II), is researched, Molecular C10H10Cl2N2Pt, CAS is 15227-42-6, about Adducts of coordination compounds – 12. New hydrogen dinitrates and their structures. Author is Al-Zamil, Nabila S.; Evans, E. H. M.; Gillard, R. D.; James, David W.; Jenkins, Tudor E.; Lancashire, Robert J.; Williams, P. A..

The new compounds trans-[Ru(py)4Cl2][H(ONO2)2] and [C13H9NH][H(ONO2)2] were characterized (C13H9N = phenanthridine) and these, with the known compounds trans-[Ir(py)4Cl2][H(ONO2)2], C13H9N.2HNO3.2H2O and [phenH][H(ONO2)2] (phen = 1,10-phenanthroline) shown to involve the H dinitrate ion. The crystal and mol. structure of the Ru complex was determined The orthorhombic unit cell, space group Pbcn has a 7.54, b 21.83, c 14.86 (±0.01) Å, Z = 4. The compound is isomorphous with the analogous Rh(III) complex, but has addnl. disorder involving the nitrate groups owing to loss of HNO3 with time to yield an isostructural mononitrate compound trans-[Ru(py)4Cl2][H(ONO2)2] and trans-[Pt(py)4Cl2](NO3)2 were obtained under conditions previously described as giving rise to nitration of the pyridine ring. In fact, no evidence for the formation of 3-nitropyridine was found during these studies.

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

Formula: C10H10Cl2N2Pt. 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 Mass spectrometry of cis-platin in urine.

The mass spectra of cisplatin  [15663-27-1] and its analogs are presented. A urine sample of a cancer patient treated with cisplatin was extracted with 0.1N-HCl and then washed with COMe2/CHCl3. The component containing Pt was eluted with 2N-HBr using an ion exchange chromatog. technique. The mass spectrum of the component showed the change from Cl-type to Br-type as the unchanged type of carrier ligand. Thus, mass spectrometry may be a useful method to elucidate the action mechanism of cisplatin.

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

In general, if the atoms that make up the ring contain heteroatoms, such rings become heterocycles, and organic compounds containing heterocycles are called heterocyclic compounds. An article called Luminescence properties of some platinum(II) complexes. Counter-ion and molecular geometry effects, published in 1973, which mentions a compound: 15227-42-6, Name is cis-Dichlorobis(pyridine)platinum(II), Molecular C10H10Cl2N2Pt, SDS of cas: 15227-42-6.

Reflectance and luminescence spectra, and emission lifetimes of 14 charged and neutral Pt(II) crystalline complexes are reported. The lifetimes (in the range of some tens of μsec) indicate that the emissions are due to a spin-forbidden process. On the basis of spectral correlations, the phosphorescence is tentatively identified as due to the lowest d-d ligand field transition when the bonding of the ligand is essentially σ in character, and to a π* → d charge-transfer transition for those complexes in which the ligands themselves have π orbital systems. Both the radiative (kr) and nonradiative (kn) rate constants are sensitive to changes in mol. geometry (cis,trans isomers) and counter-ions. By assuming unitary efficiency for the intersystem crossing to the emitting state, the counter-ion appears to predominantly affect kn through vibrational coupling of the chromophore with the lattice. For the cis forms, both kr and kn are affected in a complex manner, with metal-metal interactions playing an important role. For the trans forms, however, the constancy of the quantum yield with respect to temperature suggests that kn is negligible in comparison to kr, and therefore the trans chromophores behave as isolated systems within the crystalline lattice.

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

Epoxy compounds usually have stronger nucleophilic ability, because the alkyl group on the oxygen atom makes the bond angle smaller, which makes the lone pair of electrons react more dissimilarly with the electron-deficient system. 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.Recommanded Product: 882562-40-5.

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