Zobrazeno 1 - 10
of 24
pro vyhledávání: '"Stephen Craig Fields"'
Autor:
F. Richard Green, Bruce C. Noll, James C. Tung, Stephen Craig Fields, Richard E. Taylor, Dent William Hunter, Wensheng Chen
Publikováno v:
Synthesis. 2007:2388-2396
A concise synthetic route to the carbocyclic core of the cornexistins is reported. The route is highlighted by a Diels-Alder cycloaddition/oxidative cleavage strategy to generate the central highly functionalized nine-member ring. A silyl-tethered ri
Autor:
Buysse Ann M, Thomas L. Siddall, Lowe Christian T, Brewster William, Lo William C, Terry William Balko, Roger E. Gast, Gregory T. Whiteker, Epp Jeffrey B, John F. Daeuble, Nicholas M. Irvine, Monte Weimer, Renard Antonio Green, John S. Richburg, Satchivi Norbert M, Webster Jeffery, James M. Renga, Carla N. Yerkes, James Melvin Ruiz, Anita Lenora Alexander, Kristy Bryan, Paul R. Schmitzer, Stephen Craig Fields
Publikováno v:
Bioorganicmedicinal chemistry. 24(3)
Multiple classes of commercially important auxin herbicides have been discovered since the 1940s including the aryloxyacetates (2,4-D, MCPA, dichlorprop, mecoprop, triclopyr, and fluroxypyr), the benzoates (dicamba), the quinoline-2-carboxylates (qui
Autor:
Jeffrey R. Gilbert, Paul R. Schmitzer, Stephen Craig Fields, B. C. Gerwick, Cathy Lynn Peacock, Paul R. Graupner, John Gray, E. L. Chapin
Publikováno v:
Journal of Natural Products. 63:777-781
2,4-Dihydro-4-(beta-D-ribofuranosyl)-1,2,4(3H)-triazol-3-one (2) was identified as the principal phytotoxic component of a fermentation broth derived from an Actinomadura. The compound is a new natural product, but known by synthesis. Broad-spectrum
Autor:
Stephen Craig Fields
Publikováno v:
Tetrahedron. 55:12237-12273
Publikováno v:
Tetrahedron Letters. 40:6347-6351
While 8′-trifluoromethyl ABA ( 2a ) was known to be one of the most active and stable analogs tested in assays for ABA-like activity, a thorough evaluation of its biological properties was limited by compound availability. The current synthesis, wh
Autor:
Randy K. Hayashi, Douglas R. Powell, Edwin Vedejs, M. R. Schrimpf, S. R. Hitchcock, Stephen Craig Fields
Publikováno v:
Journal of the American Chemical Society. 121:2460-2470
Oxazaborolidinones 3, 25, 32, 42, 49, and 53 can be obtained as single diastereomers by crystallization-induced asymmetric transformation (AT). Asymmetric memory is maintained in the derived enolates because the stereogenic boron resists equilibratio
Autor:
Stephen Craig Fields
Publikováno v:
Tetrahedron Letters. 39:6621-6624
Synthesis of the novel natural product Phosphonothrixin has been accomplished in 6 steps and 24% overall yield from the commercially available Baylis-Hillman adduct derived from acetaldehyde and methyl vinyl ketone. The synthesis features use of a tr
Publikováno v:
Tetrahedron Letters. 37:1967-1970
Trimethylsilyldiazomethane converts maleic anhydride derivatives in alcoholic THF to bisesters. The highly acid and base sensitive natural product cornexistin was converted to its bis-methyl ester in 70–75% yield and to the mixed benzyl/methyl este
Publikováno v:
The Journal of Organic Chemistry. 60:3020-3027
Publikováno v:
The Journal of Organic Chemistry. 60:3028-3034