Zobrazeno 1 - 10
of 29
pro vyhledávání: '"Jeremy C. Prodger"'
The synthesis of a series of chiral auxiliaries, 5-substituted-3,3-dimethyl-2-pyrrolidinones, “quats”, from L-glutamic acid is described. Efficient regeneration of the chiral auxiliaries from their N-pivaloyl derivatives is readily achieved with
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::7d6d44cf1e14c7492f4fba890efd5892
https://doi.org/10.1016/0040-4039(94)85222-7
https://doi.org/10.1016/0040-4039(94)85222-7
Autor:
Geracimos Rassias, Neil R. Curtis, John M. Northall, Matthew Gray, Neil G. Stevenson, Andrew J. Walker, Jeremy C. Prodger
Publikováno v:
Organic Process Research & Development. 14:92-98
The supply route to GlaxoSmithKline’s 5HT4 receptor agonist 1 centred on the construction of key benzopyran fragment 2. Our attempts to define the final manufacturing route for this component are described through a series of disconnections. The sy
Autor:
Jeremy C. Prodger, Alexandra E. Sherlock, Martin P. Green, Matthew D. Selby, Christopher J. Hayes, Alexander J. Blake, Claire Wilson
Publikováno v:
The Journal of Organic Chemistry. 73:2041-2051
An alkylidene carbene 1,5-CH insertion has been used as a key step in an enantioselective total syntheses of omuralide, its C7-epimer, and (+)-lactacystin. An additional noteworthy feature of the synthesis is the use of a novel oxidative deprotection
Publikováno v:
Tetrahedron. 63:6216-6231
A 5- exo -dig radical cyclisation of the bromoamide 34 derived from the enantiopure α-ethynyl substituted amino alcohol 31 led to a 2:1 mixture of β-C3 and α-C3 methyl epimers of the pyrrolidinone 35a – 36a in a combined yield of 73%. Treatment
Autor:
Rajnikant Patel, Terry W. Packham, Matthew J. Fuchter, Mark B. Schilling, Andrew J. Burton, Matthew D. Walker, Jeremy C. Prodger, Mika Kristian Lindvall, Kevin S. Cardwell
Publikováno v:
Tetrahedron Letters. 44:5653-5656
Unusual regiochemistry is observed in the products arising from the reaction of lithiated 1,2,4-trichlorobenzene with N,N-dimethylformamide and tetraalkyloxamides.
Autor:
Darren J. Dixon, Gilles J.-M. Doisneau, Jeremy C. Prodger, Hitesh J. Sanganee, Stephen G. Davies
Publikováno v:
Tetrahedron: Asymmetry. 13:647-658
The synthesis and utility of the 3,3-dimethyl-5-substituted-2-pyrrolidinone 'Quat' chiral auxiliary in stereoselective enolate reactions of attached N-acyl side chains combined with the mild and non-racemising conditions required for the ultimate rem
Publikováno v:
Tetrahedron Letters. 43:2649-2652
As part of our studies directed towards a total synthesis of lactacystin, we have developed a reliable and environmentally acceptable method to oxidise 2,2,4-trisubstituted 3-pyrrolines to the corresponding 3-pyrrolin-2-ones. Several protocols were e
Publikováno v:
Tetrahedron Letters. 49:6279-6281
A high yielding and selective method for producing methyl 5-amino-2H-1-benzopyran-8-carboxylate derivatives via gold(I)-catalysed intramolecular alkyne hydroarylation has been developed.
Publikováno v:
Tetrahedron Letters. 38:7243-7246
The trifuoroethyl ester was studied as a protection group for sulfate monoesters in carbohydrates. The ester was formed from the sulfate by treatment with trifluorodiazoethane and was compatible with other common protecting groups used in carbohydrat
Autor:
Victoria Saez, Duncan S. Holmes, Mark J. Bamford, Paul M. Gore, Richard Priest, Jeremy C. Prodger, Michael I. Bird
Publikováno v:
Bioorganic & Medicinal Chemistry Letters. 6:239-244
Two conformationally constrained analogues of sialyl Lewis X have been synthesised in which the GlcNAc residue has been replaced with cyclohexyl and phenyl rings. The cyclohexyl derived compound was equipotent to sLex and sLea in vitro, suggesting th