Tag: M.W:400-500

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 Targeting the Gatekeeper MET146 of C-Jun N-Terminal Kinase 3 Induces a Bivalent Halogen/Chalcogen Bond, published in 2015-11-25, which mentions a compound: 882562-40-5, mainly applied to aminopyrimidine inhibitor halogen chalcogen bond methionine JNK3 crystal structure, HPLC of Formula: 882562-40-5.

We target the gatekeeper MET146 of c-Jun N-terminal kinase 3 (JNK3) to exemplify the applicability of X···S halogen bonds in mol. design using computational, synthetic, structural and biophys. techniques. In a designed series of aminopyrimidine-based inhibitors, we unexpectedly encounter a plateau of affinity. Compared to their QM-calculated interaction energies, particularly bromine and iodine fail to reach the full potential according to the size of their σ-hole. Instead, mutation of the gatekeeper residue into leucine, alanine, or threonine reveals that the heavier halides can significantly influence selectivity in the human kinome. Thus, we demonstrate that, although the choice of halogen may not always increase affinity, it can still be relevant for inducing selectivity. Determining the crystal structure of the iodine derivative in complex with JNK3 (4X21) reveals an unusual bivalent halogen/chalcogen bond donated by the ligand and the back-pocket residue MET115. Incipient repulsion from the too short halogen bond increases the flexibility of Cε of MET146, whereas the rest of the residue fails to adapt being fixed by the chalcogen bond. This effect can be useful to induce selectivity, as the necessary combination of methionine residues only occurs in 9.3% of human kinases, while methionine is the predominant gatekeeper (39%).

In addition to the literature in the link below, there is a lot of literature about this compound(3-(2,5-Dichloropyrimidin-4-yl)-1-(phenylsulfonyl)-1H-indole)HPLC of Formula: 882562-40-5, illustrating the importance and wide applicability of this compound(882562-40-5).

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

Synthetic Route of C10H10Cl2N2Pt. 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 Oxidation of platinum(II) complexes by antimony pentachloride derivatives. Author is Kukushkin, V. Yu.; Tkachuk, V. M..

[Ph3PCH2Ph]2[PtXCl3] (X = Cl, NO2) are oxidized by Sb(BzCl)Cl5 (I) or Et3NCH2Ph[SbCl6] (II) in MeNO2, MeCN or DMF to give (Ph3PCH2Ph)2[PtXCl5]. SbCl5 oxidizes cis- and trans-Pt(py)2Cl2 to give cis- and trans-[Pt(py)2Cl4], resp. I oxidizes trans-[Pt(NH2CH2CO2H)2Cl2] to give trans-[Pt(NH2CH2CO2H)2Cl4] which on reaction with PCl5 in MeCN gives trans-[Pt(NH2CH2COCl)2Cl4]. [Pt(py)4]Cl2 reacted with I to give trans-[Pt(py)2Cl4]. cis- And trans-[PtL2Cl2] (L = PPh3, SMe2) are not oxidized by I or II.

In addition to the literature in the link below, there is a lot of literature about this compound(cis-Dichlorobis(pyridine)platinum(II))Synthetic Route of C10H10Cl2N2Pt, illustrating the importance and wide applicability of this compound(15227-42-6).

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

Name: cis-Dichlorobis(pyridine)platinum(II). 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 Trifluoromethanesulfonato-O complexes of platinum(II) and palladium(II). Author is Diver, Catherine; Lawrance, Geoffrey A..

Reaction of chloroplatinum(II) and chloropalladium(II) complexes containing amine, pyridine, or phosphine ligands at or above room temperature with anhydrous CF3SO3H gave F3CSO3–O complexes, characterized spectroscopically. The complexes cis-[Pt(NH3)2(OSO2CF3)2], trans-[Pt(NH3)2Cl(OSO2CF3)], Pt(en)Cl(OSO2CF3)], [Pt(dppe)(OSO2CF3)2], [Pt(py)2Cl(OSO2CF3)], [Pt(terpy)(OSO2CF3)][CF3SO3], (terpy = 2,2′:6′,2′-terpyridine), trans-[Pd(NH3)2Cl(OSO2CF3)], [Pd(en)(OSO2CF3)2], [Pd(bpy)(OSO2CF3)2] (bpy = 2,2′-bipyridine), and [Pd(PPh3)2(OSO2CF3)2] were isolated. Aquation reactions of selected complexes showed that F3CSO3- hydrolysis is rapid for complexes of both PtII and PdII. Pt(O3SCF3)2 complexes exhibit 2 consecutive rate processes, with k1/k2 ca. 5, consistent with sequential hydrolysis of both anions. Coordinated CF3SO3- in these complexes may be substituted even by neutral coordinating O-donor solvents.

In addition to the literature in the link below, there is a lot of literature about this compound(cis-Dichlorobis(pyridine)platinum(II))Name: cis-Dichlorobis(pyridine)platinum(II), illustrating the importance and wide applicability of this compound(15227-42-6).

Reference:
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: cis-Dichlorobis(pyridine)platinum(II), is researched, Molecular C10H10Cl2N2Pt, CAS is 15227-42-6, about Ligand effects in platinum binding to DNA. A comparison of DNA binding properties for cis- and trans-[PtCl2(amine)2] (amine = NH3, pyridine).Reference of cis-Dichlorobis(pyridine)platinum(II).

The DNA binding properties of cis- and trans-[PtCl2(pyridine)2] have been examined and compared with their NH3 analogs, cis- and trans-DDP. The presence of a planar ligand reduces the rates of DNA binding but does not greatly affect the overall conformation of CT DNA, as measured by CD spectroscopy. The sequence specificity of trans-[PtCl2(py)2] includes alternating purine-pyrimidine sequences. The sequence specificity is further different between the two pyridine isomers, and the steric effects of two cis-pyridine groups are demonstrated by the appearance of relatively few binding sites in the 49-bp duplex. The effects of the pyridine ligand are further manifested by a greatly enhanced DNA-DNA interstrand crosslinking efficiency for the trans isomer, with a cross-link per adduct frequency of between 0.14 and 0.23, depending on the rb of the sample. The unwinding of closed circular pUC19 DNA by trans-[PtCl2(pyridine)2] is also more efficient than that by either DDP isomer. In contrast, little unwinding is induced by cis-[PtCl2(pyridine)2]. These results invert the standard cis/trans structure-activity relationships observed previously for [PtCl2(NH3)2]. The results are discussed with respect to the previously demonstrated effect of activation of the trans-platinum geometry using sterically hindered ligands.

In addition to the literature in the link below, there is a lot of literature about this compound(cis-Dichlorobis(pyridine)platinum(II))Reference of cis-Dichlorobis(pyridine)platinum(II), illustrating the importance and wide applicability of this compound(15227-42-6).

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

The chemical properties of alicyclic heterocycles are similar to those of the corresponding chain compounds. Compound: cis-Dichlorobis(pyridine)platinum(II), is researched, Molecular C10H10Cl2N2Pt, CAS is 15227-42-6, about Conformational properties of purine and pyrimidine complexes of cis-platinum. Implications for platinum(II)-DNA crosslinking modes, the main research direction is platinum complex conformation DNA binding; structure activity platinum complex; neoplasm inhibitor platinum complex; stereochem DNA platinum complex.Safety of cis-Dichlorobis(pyridine)platinum(II).

The stereochem. properties of a variety of cis complexes of Pt(II) containing purine or pyrimidine ligands are examined The critical intramol. conformational parameters [the interbase dihedral angle and the base/coordination plane dihedral angles] are systematically studied and trends sought. Where intramol. interactions are determinative of the adopted mol. conformation, the nature of the steric demands imposed by increasing numbers of exocyclic functional groups contiguous to the Pt binding site are clearly of major importance for the antitumor activity.

In addition to the literature in the link below, there is a lot of literature about this compound(cis-Dichlorobis(pyridine)platinum(II))Safety of cis-Dichlorobis(pyridine)platinum(II), illustrating the importance and wide applicability of this compound(15227-42-6).

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

Diver, Catherine; Lawrance, Geoffrey A. published the article 《Trifluoromethanesulfonato-O complexes of platinum(II) and palladium(II)》. Keywords: trifluoromethanesulfonato palladium platinum complex; hydrolysis kinetics trifluoromethanesulfonato platinum.They researched the compound: cis-Dichlorobis(pyridine)platinum(II)( cas:15227-42-6 ).Formula: C10H10Cl2N2Pt. 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.

Reaction of chloroplatinum(II) and chloropalladium(II) complexes containing amine, pyridine, or phosphine ligands at or above room temperature with anhydrous CF3SO3H gave F3CSO3–O complexes, characterized spectroscopically. The complexes cis-[Pt(NH3)2(OSO2CF3)2], trans-[Pt(NH3)2Cl(OSO2CF3)], Pt(en)Cl(OSO2CF3)], [Pt(dppe)(OSO2CF3)2], [Pt(py)2Cl(OSO2CF3)], [Pt(terpy)(OSO2CF3)][CF3SO3], (terpy = 2,2′:6′,2′-terpyridine), trans-[Pd(NH3)2Cl(OSO2CF3)], [Pd(en)(OSO2CF3)2], [Pd(bpy)(OSO2CF3)2] (bpy = 2,2′-bipyridine), and [Pd(PPh3)2(OSO2CF3)2] were isolated. Aquation reactions of selected complexes showed that F3CSO3- hydrolysis is rapid for complexes of both PtII and PdII. Pt(O3SCF3)2 complexes exhibit 2 consecutive rate processes, with k1/k2 ca. 5, consistent with sequential hydrolysis of both anions. Coordinated CF3SO3- in these complexes may be substituted even by neutral coordinating O-donor solvents.

In addition to the literature in the link below, there is a lot of literature about this compound(cis-Dichlorobis(pyridine)platinum(II))Formula: C10H10Cl2N2Pt, illustrating the importance and wide applicability of this compound(15227-42-6).

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

Electric Literature of C10H10Cl2N2Pt. 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: cis-Dichlorobis(pyridine)platinum(II), is researched, Molecular C10H10Cl2N2Pt, CAS is 15227-42-6, about 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..

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.

In addition to the literature in the link below, there is a lot of literature about this compound(cis-Dichlorobis(pyridine)platinum(II))Electric Literature of C10H10Cl2N2Pt, illustrating the importance and wide applicability of this compound(15227-42-6).

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

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, Canadian Journal of Chemistry called Multinuclear solid-state NMR of square-planar platinum complexes – Cisplatin and related systems, Author is Lucier, Bryan E. G.; Reidel, Alex R.; Schurko, Robert W., the main research direction is platinum complex solid state NMR.HPLC of Formula: 15227-42-6.

Multinuclear solid-state NMR (SSNMR) experiments were performed on cisplatin and four related square-planar compounds The wideband uniform rate smooth truncation-Carr-Purcell-Meiboom-Gill (WURST-CPMG) pulse sequence was used in NMR experiments to acquire 195Pt, 14N, and 35Cl ultra-wideline NMR spectra of high quality. Standard Hahn-echo and magic-angle spinning 195Pt NMR experiments are also performed to refine extracted chem. shielding (CS) tensor parameters. Platinum magnetic shielding (MS) tensor orientations are calculated using both plane-wave d. functional theory (DFT) and standard DFT methods. The tensor orientations are highly constrained by mol. symmetry elements, but also influenced to some degree by intermol. interactions. 14N WURST-CPMG experiments were performed on three compounds and elec. field gradient (EFG) parameters (the quadrupolar coupling constant, Cq, and the asymmetry parameter, ηq) are reported. First principles calculations of the 14N EFG tensor parameters and orientations and affirm their dependence on the local hydrogen bonding environment. 35Cl WURST-CPMG experiments on cisplatin and transplatin are reported, using two different static magnetic fields to extract EFG and CS tensor parameters, and 35Cl EFG tensor magnitudes and orientations are predicted using 1st principles calculations Transverse (T2) relaxation data for all nuclei were used to study heteronuclear dipolar relaxation mechanisms, as well as the nature of the local hydrogen bonding environments.

In addition to the literature in the link below, there is a lot of literature about this compound(cis-Dichlorobis(pyridine)platinum(II))HPLC of Formula: 15227-42-6, illustrating the importance and wide applicability of this compound(15227-42-6).

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

COA of Formula: C10H10Cl2N2Pt. 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 Novel platinum pyridine-hydroxamic acid complexes: Synthesis, characterization, X-ray crystallographic study and nitric oxide related properties. Author is Griffith, Darren; Bergamo, Alberta; Pin, Sara; Vadori, Marta; Mueller-Bunz, Helge; Sava, Gianni; Marmion, Celine J..

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.

In addition to the literature in the link below, there is a lot of literature about this compound(cis-Dichlorobis(pyridine)platinum(II))COA of Formula: C10H10Cl2N2Pt, illustrating the importance and wide applicability of this compound(15227-42-6).

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

Electric Literature of C10H10Cl2N2Pt. 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 Chemical assembling of silica surface using a reaction of catalytic hydrosilylation. Author is Vekki, D. A.; Kuchaev, E. A..

Chem. assembling of the silica surface modified by dimethylchlorosilane was performed by the catalytic hydrosilylation of 1,3-divinyl-1,1,3,3-tetramethyldisiloxane, α-Me styrene, acetophenone, allyl Bu and allyl glycidyl ethers with dimethylchlorosilane. The effect of the nature of complexes of platinum, palladium, rhodium and ruthenium on the parameters of hydrosilylation was studied. It was shown that the maximum rate of hydrosilylation was observed in the reaction with allyl glycidyl ether, and min., with α-methylstyrene; the most effective catalyst of hydrosilylation was [Rh(CO)2(acac)].

In addition to the literature in the link below, there is a lot of literature about this compound(cis-Dichlorobis(pyridine)platinum(II))Electric Literature of C10H10Cl2N2Pt, illustrating the importance and wide applicability of this compound(15227-42-6).

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