Results 271 to 280 of about 175,047 (318)

An asymmetric synthesis of sulfobacin A

Tetrahedron Letters, 2007
AbstractChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 200 leading journals. To access a ChemInform Abstract, please click on HTML or PDF.
Anubha Sharma, Sunita Gamre, Subrata Chattopadhyay   +2 more
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Asymmetric Synthesis of (+)-Negamycin

The Journal of Organic Chemistry, 2002
An asymmetric synthesis of the antibiotic (+)-negamycin (1) has been achieved, starting from commercially available (5R,6S)-4-(benzyloxycarbonyl)-5,6-diphenyl-2,3,5,6-tetrahydro-4H-1,4-oxazin-2-one (2). The synthesis involved the stabilized Wittig olefination of the lactone carbonyl group of 2 and subsequent asymmetric hydrogenation to generate the ...
Rajendra P, Jain, Robert M, Williams
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An Asymmetric Synthesis of (+)-Erysotramidine

Synthesis, 2005
AbstractChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 200 leading journals. To access a ChemInform Abstract, please click on HTML or PDF.
Alexander J. Blake, Christopher Gill, Daniel A. Greenhalgh, Nigel S. Simpkins, Fengzhi Zhang   +4 more
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Asymmetric Synthesis of (+)-Hypusine

Organic Letters, 2001
Wittig reaction of (triphenylphosphoranylidene)acetonitrile with the lactone carbonyl of (5R,6S)-4-(benzyloxycarbonyl)-5,6-diphenyl-2,3,5,6-tetrahydro-4H-1,4-oxazin-2-one (3) and subsequent reduction generates morpholinylethylamine dihydrochloride (5) in quantitative yield and with excellent diastereoselectivity.
R P, Jain, B K, Albrecht, D E, DeMong, R M, Williams   +3 more
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Asymmetric Synthesis of (+)-Polyanthellin A

Journal of the American Chemical Society, 2009
A concise and convergent route to (+)-polyanthellin A is presented. This synthesis features a diastereoselective cyclopropane/aldehyde [3+2] cycloaddition to install the hydroisobenzofuran core. The use of MADNTf(2) as a potent, bulky Lewis acid was essential to allow a labile beta-silyloxy aldehyde to be used in the cycloaddition.
Matthew J, Campbell, Jeffrey S, Johnson
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Asymmetric Synthesis of (‐)‐Acaterin.

ChemInform, 2003
The asymmetric synthesis of (−)-acaterin, an inhibitor of acyl-CoA cholesterol acyl transferase has been achieved starting from the commercially available starting materials, octan-1-ol and methyl (R)-lactate. The key steps are a Sharpless asymmetric dihydroxylation and a Wittig olefination.
Subba Rao V. Kandula, Pradeep Kumar
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Asymmetric Synthesis of Hydroxyphosphonates

ChemInform, 2005
AbstractChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 200 leading journals. To access a ChemInform Abstract, please click on HTML or PDF.
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An Asymmetric Formal Synthesis of Fasicularin

Chemistry – A European Journal, 2004
AbstractAn asymmetric formal synthesis of fasicularin (1) is described. This natural product, isolated from the extracts of the marine invertebrate Nephteis fasicularis, has shown modest cytotoxicity towards Vero cells. Fasicularin is among only two members of the cylindricine family of natural products, along with lepadiformine (2), to possess a trans
Fenster, M., Dake, G.
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Concise Asymmetric Synthesis of (‐)‐Sparteine.

ChemInform, 2004
AbstractFor Abstract see ChemInform Abstract in Full Text.
Jean-Paul R, Hermet, Matthew J, McGrath, Peter, O'Brien, David W, Porter, John, Gilday   +4 more
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Asymmetric Synthesis of Styryllactones

ChemInform, 2006
AbstractChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 200 leading journals. To access a ChemInform Abstract, please click on HTML or PDF.
M. Mondon, J.- Gesson
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