Zobrazeno 1 - 10
of 23
pro vyhledávání: '"Adrian Maddaford"'
Autor:
David Leese, Donald Stuart Middleton, James Hart, Rebecca Glen, Xiurong Zhang, David C. Pryde, P. G. Wainwright, Neil Forrest, Thierry Guyot, Adrian Maddaford, Peter T. Stephenson
Publikováno v:
Tetrahedron Letters. 52:6415-6419
Robust practical routes to three different carbon-substituted nucleosides are described. Short synthetic procedures for preparing 1′-homonucleosides, 2′- C -methyl-carbanucleosides and 2′- C -methyl-cyclopropyl/cyclopentyl fused bicyclic ribose
Autor:
Neil Forrest, Michael J. Simms, Adrian Maddaford, Rebecca Glen, Peter T. Stephenson, Xiurong Zhang, Sutton Scott Channing, David C. Pryde, Thierry Guyot, Donald Stuart Middleton, James Hart, P. G. Wainwright
Publikováno v:
Synlett. 2011:1900-1904
A novel systematic approach to the synthesis of 2-cyano-7-deaza-8-azapurinederived nucleosides is described. It is shown how this chemistrywas developed with the labile 2-substituted nitrile position inmind, and also how the same approach is applicab
Autor:
Rebecca Glen, Adrian Maddaford, Cheryl L. Doherty, David Leese, Ray Fisher, James Hart, Xiurong Zhang, David C. Pryde, Thierry Guyot, Sutton Scott Channing, Donald Stuart Middleton, Nicholas Smith
Publikováno v:
Synlett. 2007:3149-3154
An efficient and flexible synthesis of 4-substituted ribose analogues is described. The key step involves the simple addition of a Grignard reagent to a ketone derived from a commercially available ribose. The addition of a range of Grignard reagents
Autor:
Rebecca Glen, Pei-Pei Kung, Sutton Scott Channing, Donald Stuart Middleton, Peter S. Stephenson, Javier González, Ray Fisher, David C. Pryde, Peter S. Dragovich, Adrian Maddaford, P. G. Wainwright
Publikováno v:
Synthesis. 2007:1378-1384
Synthesis of a RACEMIC 4′-ethynyl-2′-deoxyribose intermediate using stereoselective chelation control is presented. This intermediate is further transformed to 4′-ethynyl-2′-deoxy- and 4′-ethynyl-2′,3′-dideoxy-2′,3′-didehydronucleos
Publikováno v:
Tetrahedron. 62:295-301
Two new atropisomeric 4-aminopyridine-based nucleophilic catalysts containing terphenyl 'blocking groups' have been prepared and evaluated for kinetic resolution (KR) of aryl alkyl sec-alcohols. One of these biaryls is shown to be the most selective
Autor:
Pei-Pei Kung, Sutton Scott Channing, Peter S. Dragovich, Andrew Lund, Adrian Maddaford, Donald Stuart Middleton, David Leese, Richard A. Bissell, Phillip Wainwright, Ray Fisher, Javier Gonzalez, David C. Pryde, Peter T. Stephenson, Karen Runcie
Publikováno v:
Synlett. :0765-0768
An efficient and flexible synthesis of cyclopentane and hydroxylated cyclopentane phosphonic acid analogues is described. The key step involves the opening of an epoxide with either a nucleoside base or a selenyl anion toaccess the target molecules.
Publikováno v:
Journal of the Chemical Society, Perkin Transactions 1. :1785-1794
The regioselectivity of α-metalation–methylation of N-BF3 adducts of 4-(dimethylamino)pyridines as a function of β-substitution is examined in attempts to prepare configurationally stable atropisomeric derivatives (I and II) having an α-methyl s
Publikováno v:
Organic Preparations and Procedures International. 32:331-365
(2000). ASYMMETRIC CATALYSIS OF ACYL TRANSFER BY LEWIS ACIDS AND NUCLEOPHILES. A REVIEW. Organic Preparations and Procedures International: Vol. 32, No. 4, pp. 331-365.
Autor:
Tomasz Fekner, Adrian Maddaford, Alan C. Spivey, Alison Judith Redgrave, Christopher S. Frampton
Publikováno v:
Journal of the Chemical Society, Perkin Transactions 1. :3460-3468
The syntheses of a series of enantiomerically pure C2-symmetric 4-(pyrrolidino)pyridine (PPY) derivatives by SNAr of 4-halo-/4-phenoxypyridines and by cyclocondensation from 4-aminopyridine are described. Preliminary results pertaining to their use a
Autor:
Adrian Maddaford, Alan C. Spivey
Publikováno v:
Annual Reports Section "B" (Organic Chemistry). 95:83-95