Search results for "Piper"

Related Article: Vittorio Pace, Wolfgang Holzer, Guangrong Meng, Shicheng Shi, Roger Lalancette, Roman Szostak, Michal Szostak|2016|Chem.-Eur.J.|22|14494|doi:10.1002/chem.201603543

1-benzoylpiperidine-26-dioneSpace GroupCrystallographyCrystal SystemCrystal StructureCell ParametersExperimental 3D Coordinates

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Synthesis, Stability and Relaxivity of TEEPO-Met: An Organic Radical as a Potential Tumour Targeting Contrast Agent for Magnetic Resonance Imaging

2018

Cancer is a widespread and life-threatening disease and its early-stage diagnosis is vital. One of the most effective, non-invasive tools in medical diagnostics is magnetic resonance imaging (MRI) with the aid of contrast agents. Contrast agents that are currently in clinical use contain metals, causing some restrictions in their use. Also, these contrast agents are mainly non-specific without any tissue targeting capabilities. Subsequently, the interest has notably increased in the research of organic, metal-free contrast agents. This study presents a new, stable organic radical, TEEPO-Met, where a radical moiety 2,2,6,6-tetraethylpiperidinoxide (TEEPO) is attached to an amino acid, methio…

116 Chemical sciencesPharmaceutical ScienceContrast Media01 natural sciencesAnalytical Chemistrylaw.inventionGLUCOSENuclear magnetic resonancePiperidineslawHeterocyclic CompoundsNeoplasmsDrug DiscoveryMoietymagneettitutkimusSpin labelElectron paramagnetic resonanceta116orgaaniset yhdisteetmedicine.diagnostic_testMolecular StructureChemistryPhantoms ImagingRelaxation (NMR)radicalsMagnetic Resonance Imaging3. Good healthChemistry (miscellaneous)Molecular MedicineMRIRadical010402 general chemistryvapaat radikaalitImaging phantomArticleCyclic N-OxidesvarjoainetutkimusnitroxidesmedicineAnimalsHumanscontrast agentstyppiyhdisteetPhysical and Theoretical Chemistrymethionine010405 organic chemistryOrganic ChemistryElectron Spin Resonance SpectroscopyMagnetic resonance imagingIN-VITRO3126 Surgery anesthesiology intensive care radiologynitroxides; radicals; methionine; contrast agents; MRI; NMR; EPRIn vitroNMRTRANSPORT0104 chemical sciencesREDUCTIONSPIN-LABEL1182 Biochemistry cell and molecular biologyEPRMolecules; Volume 23; Issue 5; Pages: 1034

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ChemInform Abstract: Recyclable Catalyst Reservoir: Oxidation of Alcohols Mediated by Noncovalently Supported Bis(imidazolium)-Tagged 2,2,6,6-Tetrame…

2014

2 2 6 6 tetramethylpiperidine 1 oxylChemistryAlcohol oxidationPolymer chemistryGeneral MedicineRecyclable catalystChemInform

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CCDC 1569164: Experimental Crystal Structure Determination

2017

Related Article: Toms Rekis, Simone d’Agostino, Dario Braga, Fabrizia Grepioni|2017|Cryst.Growth Des.|17|6477|doi:10.1021/acs.cgd.7b01146

2-(1-azabicyclo[2.2.2]octan-3-yl)-6-(piperidin-1-yl)-1H-benzo[de]isoquinoline-13(2H)-dioneSpace GroupCrystallographyCrystal SystemCrystal StructureCell ParametersExperimental 3D Coordinates

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CCDC 1569165: Experimental Crystal Structure Determination

2017

Related Article: Toms Rekis, Simone d’Agostino, Dario Braga, Fabrizia Grepioni|2017|Cryst.Growth Des.|17|6477|doi:10.1021/acs.cgd.7b01146

2-(1-azabicyclo[2.2.2]octan-3-yl)-6-(piperidin-1-yl)-1H-benzo[de]isoquinoline-13(2H)-dioneSpace GroupCrystallographyCrystal SystemCrystal StructureCell ParametersExperimental 3D Coordinates

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CCDC 1569162: Experimental Crystal Structure Determination

2017

Related Article: Toms Rekis, Simone d’Agostino, Dario Braga, Fabrizia Grepioni|2017|Cryst.Growth Des.|17|6477|doi:10.1021/acs.cgd.7b01146

2-(1-azabicyclo[2.2.2]octan-3-yl)-6-(piperidin-1-yl)-1H-benzo[de]isoquinoline-13(2H)-dioneSpace GroupCrystallographyCrystal SystemCrystal StructureCell ParametersExperimental 3D Coordinates

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Diastereoselective synthesis of 6-functionalized 4-aryl-1,3-oxazinan-2-ones and their application in the synthesis of 3-aryl-1,3-aminoalcohols and 6-…

2010

Abstract Halocyclocarbamation of benzyl N -(1-phenyl-3-butenyl)carbamates afforded 6-functionalized 4-aryl-1,3-oxazinan-2-ones with moderate to excellent diastereoselectivity depending on the N -substituent. Importantly, in contrast to reported cyclocarbamations of homoallylic carbamates, which are generally trans -diastereoselective, cyclization of N -unsubstituted Cbz-protected homoallylamines led to cis -1,3-oxazinan-2-ones, predominantly. The use of N -benzylated and in situ prepared N -silylated derivatives resulted however in trans -selectivity. Transition states are proposed to explain the stereochemical influence of the N -substituent on the cyclocarbamations. The functionalized 1,3…

3-AminoalcoholsStereochemistry3-ASYMMETRIC INDUCTION1SubstituentBiochemistrychemistry.chemical_compound4-dionesCHIRAL BUILDING-BLOCKDrug DiscoveryHEIMIA-SALICIFOLIAArylOrganic ChemistryCONCISE SYNTHESISHOMOALLYLIC AMINESTransition stateALPHA-AMINO-ACIDSChemistrySTEREOSELECTIVE-SYNTHESISCyclocarbamationSTREPTOMYCES-CLAVULIGERUSchemistryASYMMETRIC TOTAL-SYNTHESISINTRAMOLECULAR AMIDOALKYLATION3-Oxazinan-2-onesPiperidine-2

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