Formation of Enantiopure 5-Substituted Oxazolidinones through Enzyme-Catalysed Kinetic Resolution of Epoxides
摘要:
Halohydrin dehalogenase from Agrobacterium radiobacter catalyzed the enantioselective ring opening of terminal epoxides with cyanate as a nucleophile, yielding 5-substituted oxazolidinones in high yields and with high enantiopurity (69-98% ee). This is the first example of the biocatalytic conversion of a range of epoxides to the corresponding oxazolidinones.
A Convergent Hetero-Diels-Alder Strategy for Asymmetric Access to a Lactone Containing Two Lipidic Chains
作者:Cong S. Vu、Nicolas Guisot、Stéphane Guillarme、Arnaud Martel、Gilles Dujardin、Muriel Pipelier、Didier Dubreuil、Christine Saluzzo
DOI:10.1002/ejoc.201200513
日期:2012.7
Eu(fod)3-catalyzed heterocycloaddition of chiral β-alkyl-N-vinyl-1,3-oxazolidin-2-ones with a heterodiene bearing a lipidic chain led to heterocycloadducts in high yield with excellent endo and facial selectivities. An original lipidic lactone, a potent precursor of a ceramide analog, was obtained in seven steps from the adduct in a convergent manner after appropriate functionalization.
Formation of Enantiopure 5-Substituted Oxazolidinones through Enzyme-Catalysed Kinetic Resolution of Epoxides
作者:Maja Majerić Elenkov、Lixia Tang、Auke Meetsma、Bernhard Hauer、Dick B. Janssen
DOI:10.1021/ol800698t
日期:2008.6.1
Halohydrin dehalogenase from Agrobacterium radiobacter catalyzed the enantioselective ring opening of terminal epoxides with cyanate as a nucleophile, yielding 5-substituted oxazolidinones in high yields and with high enantiopurity (69-98% ee). This is the first example of the biocatalytic conversion of a range of epoxides to the corresponding oxazolidinones.