37 research outputs found
Modular,step-efficient palladium-catalyzed cross-coupling strategy to access C6-heteroaryl 2-aminopurine ribonucleosides
Get PDFThis work was supported by an EPSRC-GSK industrial CASE studentship for H.B., a University studentship for T.D.K., and postdoctoral funding for S.P. by the Leverhulme Trust (RPG-2014-313).Two Pd-catalyzed methods to access 6-heteroaryl 2-aminopurine ribonucleosides from 6-chloroguanosine are described. First, Pd-132-catalyzed Suzuki–Miyaura cross-coupling using a series of boron substrates and 6-chloroguanosine forms 6-heteroaryl-2-aminopurines in a single step. The versatility of 6-chloroguanosine is further demonstrated using a modified Sonogashira coupling employing potassium iodide as an additive. Finally, the utility of the 6-alkynyl-2-aminopurine ribonucleoside as a dipolarophile in [3 + 2] cycloadditions is presented, affording triazoles and isoxazoles when reacted with azide and isonitrile 1,3-dipoles, respectively.Publisher PDFPeer reviewe
Statin Prescribing Patterns: An Analysis of Data From Patients With Diabetes in the National Hospital Ambulatory Medical Care Survey Outpatient Department and National Ambulatory Medical Care Survey Databases, 2005–2010
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Correction to "Modular, step-efficient palladium-catalyzed cross-coupling strategy to access C6-heteroaryl 2-aminopurine ribonucleosides"
Get PDFTwo Pd-catalyzed methods to access 6-heteroaryl 2-aminopurine ribonucleosides from 6-chloroguanosine are described. First, Pd-132-catalyzed Suzuki-Miyaura cross-coupling using a series of boron substrates and 6-chloroguanosine forms 6-heteroaryl-2-aminopurines in a single step. The versatility of 6-chloroguanosine is further demonstrated using a modified Sonogashira coupling employing potassium iodide as an additive. Finally, the utility of the 6-alkynyl-2-aminopurine ribonucleoside as a dipolarophile in [3 + 2] cycloadditions is presented, affording triazoles and isoxazoles when reacted with azide and isonitrile 1,3-dipoles, respectively
P683: A FIRST-IN-HUMAN PHASE 1 STUDY OF ORAL LOXO-338, A SELECTIVE BCL2 INHIBITOR, IN PATIENTS WITH ADVANCED HEMATOLOGIC MALIGNANCIES (TRIAL IN PROGRESS)
No full textA Trifluoroacetic Acid-labile Sulfonate Protecting Group and Its Use in the Synthesis of a Near-IR Fluorophore
No full textSubstrate Orientation and Specificity in Xanthine Oxidase: Crystal Structures of the Enzyme in Complex with Indole-3-acetaldehyde and Guanine
No full textModular,step-efficient palladium-catalyzed cross-coupling strategy to access C6-heteroaryl 2-aminopurine ribonucleosides
No full textTwo Pd-catalyzed methods to access 6-heteroaryl 2-aminopurine ribonucleosides from 6-chloroguanosine are described. First, Pd-132-catalyzed Suzuki–Miyaura cross-coupling using a series of boron substrates and 6-chloroguanosine forms 6-heteroaryl-2-aminopurines in a single step. The versatility of 6-chloroguanosine is further demonstrated using a modified Sonogashira coupling employing potassium iodide as an additive. Finally, the utility of the 6-alkynyl-2-aminopurine ribonucleoside as a dipolarophile in [3 + 2] cycloadditions is presented, affording triazoles and isoxazoles when reacted with azide and isonitrile 1,3-dipoles, respectively
Correction to “Modular, Step-Efficient Palladium-Catalyzed Cross-Coupling Strategy To Access C6-Heteroaryl 2-Aminopurine Ribonucleosides”
No full textCrystal Structures of Urate Bound Form of Xanthine Oxidoreductase: Substrate Orientation and Structure of the Key Reaction Intermediate
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