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Griffith, Darren; Bergamo, Alberta; Pin, Sara; Vadori, Marta; Mueller-Bunz, Helge; Sava, Gianni; Marmion, Celine J. published the article 《Novel platinum pyridine-hydroxamic acid complexes: Synthesis, characterization, X-ray crystallographic study and nitric oxide related properties》. Keywords: pyridinehydroxamic acid preparation complexation platinum; crystal structure platinum pyridinehydroxamato chloro complex; platinum pyridinehydroxamato pyridinecarboxylato complex preparation; ruthenium nitrosyl chloro ethylenediaminetetraacetato complex preparation; vasorelaxation agent platinum pyridinehydroxamato pyridinecarboxylato complex; nitric oxide release platinum pyridinehydroxamato complex.They researched the compound: cis-Dichlorobis(pyridine)platinum(II)( cas:15227-42-6 ).Application In Synthesis of cis-Dichlorobis(pyridine)platinum(II). Aromatic heterocyclic compounds can be divided into two categories: single heterocyclic and fused heterocyclic. In addition, there is a lot of other information about this compound (cas:15227-42-6) here.

We describe the synthesis and characterization of a novel class of PtII and PtIV pyridine-hydroxamic acid (pyhaH) complexes of general formula cis-[PtIICl2(x-pyhaH)2] and cis-[PtIVCl4(x-pyhaH)2], resp., (where x = 3 or 4) in which the pyridine-hydroxamic acid is coordinated to the platinum ion via the pyridine nitrogen only leaving the hydroxamic acid free to potentially release cytotoxic nitric oxide (NO). The crystal structure of the PtIV derivative, cis-[PtCl4(4-pyhaH)2]·2CH3OH is reported. To establish the biol. effect of the uncoordinated hydroxamic acid moiety in the PtII compounds, the corresponding pyridinecarboxylic acid (pycaH) complexes of general formula cis-[PtIICl2(x-pycaH)2] (where x = 3 or 4) and the PtII pyridine (py) complex cis-[PtIICl2(py)2] were synthesized and served as reference standards The NO-releasing properties of each of the PtII compounds, the pyhaH and the pycaH ligands were studied. The PtII pyridine-hydroxamic acid derivatives were found to induce potent in vitro effects attributable to either NO-release from the hydroxamic acid moiety and/or stimulation of inducible nitric oxide synthase of endothelial cells.

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SDS of cas: 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 Discovery of SY-5609: A Selective, Noncovalent Inhibitor of CDK7. Author is Marineau, Jason J.; Hamman, Kristin B.; Hu, Shanhu; Alnemy, Sydney; Mihalich, Janessa; Kabro, Anzhelika; Whitmore, Kenneth Matthew; Winter, Dana K.; Roy, Stephanie; Ciblat, Stephane; Ke, Nan; Savinainen, Anneli; Wilsily, Ashraf; Malojcic, Goran; Zahler, Robert; Schmidt, Darby; Bradley, Michael J.; Waters, Nigel J.; Chuaqui, Claudio.

CDK7 has emerged as an exciting target in oncol. due to its roles in two important processes that are misregulated in cancer cells: cell cycle and transcription. This report describes the discovery of SY-5609, a highly potent (sub-nM CDK7 Kd) and selective, orally available inhibitor of CDK7 that entered the clinic in 2020 (ClinicalTrials.gov Identifier: NCT04247126). Structure-based design was leveraged to obtain high selectivity (>4000-times the closest off target) and slow off-rate binding kinetics desirable for potent cellular activity. Finally, incorporation of a phosphine oxide as an atypical hydrogen bond acceptor helped provide the required potency and metabolic stability. The development candidate SY-5609 displays potent inhibition of CDK7 in cells and demonstrates strong efficacy in mouse xenograft models when dosed as low as 2 mg/kg.

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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: cis-Dichlorobis(pyridine)platinum(II), is researched, Molecular C10H10Cl2N2Pt, CAS is 15227-42-6, about Cis-bis(pyridine)dichloro derivatives of platinum(IV).Recommanded Product: cis-Dichlorobis(pyridine)platinum(II).

The complexes Pt(py)2Cl2XNO2 (X = Cl-, Br-) and Pt(py)2Cl2(OH)NO2 were precipitated by adding 5-10 ml. H2O to mixtures of equivalent amounts of Pt(py)2Cl2(NO2)NO3 (I) and KCl, KBr, or KOH, resp. I reacts with KI to give a mixture of Pt(py)2Cl2I2 and Pt(py)2Cl2INO2. Chlorination of Pt(py)2Cl2 yields [Pt(py)2Cl2]Cl2. [Pt(py)2Cl2][Pt(py)2Cl2(OH)2] was obtained from Pt(py)2Cl2 and 10% aqueous H2O2 at room temperature after standing for 24 hrs. Individual species were identified by x-ray diffraction tests. The aqueous solutions of Pt(py)2Cl2XNO2 undergo hydrolysis according to: Pt(py)2Cl2XNO2 + H2O ⇌ [Pt(py)2Cl2X(H2O)]+ + NO2-, whereas the aqueous solutions of Pt(py)2Cl2(OH)2 and [Pt(py)2Cl2]Cl2 are considerably more stable. Solutions of Pt(py)2Cl2Br2 partially decompose in light to Pt(py)2Cl2, HBrO, and HBr, resp.

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Name: 3-(2,5-Dichloropyrimidin-4-yl)-1-(phenylsulfonyl)-1H-indole. 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: 3-(2,5-Dichloropyrimidin-4-yl)-1-(phenylsulfonyl)-1H-indole, is researched, Molecular C18H11Cl2N3O2S, CAS is 882562-40-5, about CDK7 Inhibitors in Cancer Therapy: The Sweet Smell of Success?.

A review. Cyclin-dependent kinase (CDK) 7 has a unique functional repertoire by virtue of its dual role in transcription and cell cycle progression. Whereas CDK7 is ubiquitously expressed in various types of cancer, its downregulation leads to reduced cell proliferation. Importantly, it is now agreed that targeting transcription selectively limits the synthesis of mRNAs involved in tumor growth without causing an outage of transcription of housekeeping genes. Thus, CDK7 has been considered as a viable therapeutic target in cancer. Indeed, the development of CDK7 inhibitors has gained huge momentum with two mols., CT7001 and SY-1365, currently under clin. development. Herein, we discuss the latest understanding of the role of CDK7 in cancer cells and provide an overview of the pharmacophores of CDK7 inhibitors, their efficacy in various cancer models, and their clin. development.

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Most of the natural products isolated at present are heterocyclic compounds, so heterocyclic compounds occupy an important position in the research of organic chemistry. A compound: 15227-42-6, is researched, SMILESS is [Cl-][Pt+2]([N]1=CC=CC=C1)([Cl-])[N]2=CC=CC=C2, Molecular C10H10Cl2N2PtJournal, Zhurnal Obshchei Khimii called Platinum(II) complexes in the catalytic hydrosilylation of acetophenone. Kinetics of the reaction and the effect of ligands, Author is Lasitsa, N. A.; Skvortsov, N. K.; Lobadyuk, V. I.; Spevak, V. N.; Esina, G. A.; Abramova, I. P.; Lazarev, S. Ya., the main research direction is acetophenone hydrosilylation platinum catalyst kinetics; ligand effect platinum catalyst hydrosilylation.Category: tetrahydroisoquinoline.

A kinetic study of hydrosilylation of MeCOPh with MeSiHCl2 or MeSiPhH2 in the presence of LL1PtX2 (X = Cl, Br; L = L1 = Me2SO, Et2SO, py, Et3P, MeSOC6H4Me-4; L = C2H4, L1 = Me2SO, Et2SO; L = py, L1 = Et2SO; L = MeSOC6H4Me-4, L1 = Bu3P) catalysts showed a relationship between the ligand type and catalytic activity. In contrast with bis(phosphine) and bis(olefin) complexes, bis(sulfoxide) complexes and all complexes with mixed ligands, one of which is sulfoxide, show high catalytic activity. For the reaction with MeSiHCl2, the order of reactivity is olefin > SO > P(III) > py, close to an analogous relationship for the hydrosilylation of olefins.

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Tessier, C.; Rochon, F. D. 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 ).Formula: C10H10Cl2N2Pt. 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.

Cis- and trans-Pt(Ypy)2X2, where Ypy is a Me derivative of pyridine and X = Cl or I, were studied by spectroscopic methods, especially by multinuclear NMR spectroscopy. In 195Pt NMR, the cis-dichloro compounds were observed between -1998 and -2021 ppm in CDCl3, while the trans compounds were found at slightly lower field, between -1948 and -1973 ppm. The diiodo species were observed at much higher field, between -3199 and -3288 ppm for the cis isomers and between -3122 and -3264 ppm for the trans isomers. In 1H NMR, the 3J(195Pt-1H) coupling constants are larger for the cis compounds (∼42 ppm) than for the trans isomers (∼33 ppm). In 13C NMR, the values of 3J(195Pt-13C) also are larger for the cis complexes. There seems to be a slight dependence of the pKa values of the protonated ligands on the δ(Pt) chem. shifts. The presence of π-bonding between Pt and the pyridine ligands do not seem very important. The crystal structures of three dichloro and five diiodo complexes were determined, in an attempt to obtain information on the trans influence of the three ligands. The iodo ligand has the greatest trans influence. Chloro and pyridine ligands seem to have similar trans influence, although, the chloro ligand seems to have a slightly larger influence than pyridine derivatives One structure, trans-Pt(2-pic)2I2, showed a syn conformation of the two 2-picoline ligands.

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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.Synthetic Route of C6H5NO3. The article 《Rotation and conformation of purine ligands in cis-bis(6-oxopurine)platinum compounds》 in relation to this compound, is published in Inorganica Chimica Acta. Let’s take a look at the latest research on this compound (cas:15227-42-6).

cis-[PtL2L12]2+ (L = guanosine, 9-methylhypoxanthine, L1 = Me-substituted 1,3-propanediamines, py, α-picoline, 2,2′-bipyridine, 1,2-bis(pyridin-2-yl)ethane) were prepared and studied by NMR. Rotation of L about their Pt-N7 bonds is fast on the NMR time scale, when no Me groups are present on the nitrogens of the 1,3-propanediamine ligands. Rotation is slow when 2 Me groups are present on 1 N of a 1,3-propanediamine chelate. A single Me group on a N hardly seems to interfere with this rotation. Coordinated pyridines do not hinder rotation. In compounds containing 2-methylpyridine ligands, the rotation of the pyridines is slow at room temperature, but becomes fast at higher temperatures Rotation of L, however, is fast on the NMR time scale from -30 to +90°. In compounds containing 1,2-bis(pyridin-2-yl)ethane, rotation of L is slow at low temperatures, but becomes fast at room temperature Furthermore, the results obtained with these compounds show that the purines are preferentially oriented in a head-to-tail arrangement.

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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 Antitumor and antimitogenic properties of cis-dichloro(dipyridine)platinum(II), published in 1971, which mentions a compound: 15227-42-6, mainly applied to platinum dichlordipyridine tumor inhibition; DNA tumor lymphocyte platinum complex; lymphocyte DNA platinum complex; chloropyridines platinum tumor, Synthetic Route of C10H10Cl2N2Pt.

cis-Dichloro(dipyridine)platinum(II) (I) showed less potent antitumor and antimitogenic activity than previously studied cis-[Pt(NH3)2Cl2] (Rosenberg, B.; Van Camp, L., 1970). However in preliminary experiments, I was also less toxic to mice than the inorganic complex. I inhibited the growth of Escherichia coli. I increased the survival time of mice bearing Ehrlich ascites tumor; in vitro, I also inhibited protein and nucleic acid synthesis by tumors. I inhibited DNA synthesis in phytohemagglutinin-stimulated cultures of human lymphocytes.

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Canty, Allan J.; Stevens, Elizabeth A. published the article 《Synthesis of potential platinum(II) antitumor complexes: complexes containing bidentate pyridyl and imidazolyl donors》. Keywords: antitumor platinum dipyridylmethane pyridylimidazole complex; imidazole pyridyl platinum antitumor complex.They researched the compound: cis-Dichlorobis(pyridine)platinum(II)( cas:15227-42-6 ).Recommanded Product: 15227-42-6. Aromatic heterocyclic compounds can be divided into two categories: single heterocyclic and fused heterocyclic. In addition, there is a lot of other information about this compound (cas:15227-42-6) here.

PtLCl2 [L = di-2-pyridylmethane, 3,3-bis(2-pyridyl)pentane, 2-(2-pyridyl)imidazole (I), N-methyl-2-(2-pyridyl)imidazole] were prepared and characterized by chem. anal., elec. conductivity, IR spectra, and inhibitory effects on cultures of L1210 mouse leukemia cells. The complex with L = I gave a 50% inhibiting dose similar to that of cis-Pt(NH3)2Cl2 and below the values of the other complexes; this suggests that further tests with tumor-bearing animals is warranted for this I complex with Pt.

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Heterocyclic compounds can be divided into two categories: alicyclic heterocycles and aromatic heterocycles. Compounds whose heterocycles in the molecular skeleton cannot reflect aromaticity are called alicyclic heterocyclic compounds. Compound: 15227-42-6, is researched, Molecular C10H10Cl2N2Pt, about Cis-bis(pyridine)dichloro derivatives of platinum(IV), the main research direction is pyridine chloride complex Pt; chloride pyridine complex Pt; platinum pyridine chloride complex.Electric Literature of C10H10Cl2N2Pt.

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