A compound reprsented by the following formula (I), its salts or nsolvates thereof capable of specifically or selectively expressig an antifungal activity in a broad spectrum based on the novel mechanism thereof of 1,6-β-glucan synthesis inhibition, and an antifungal agent containing any of them.
A compound reprsented by the following formula (I), its salts or nsolvates thereof capable of specifically or selectively expressig an antifungal activity in a broad spectrum based on the novel mechanism thereof of 1,6-β-glucan synthesis inhibition, and an antifungal agent containing any of them.
The comprehensive study of the reactions of carbonylcompounds and ethyl diazoacetate in the presence of a Brønsted acid catalyst is described. In result, a broad range of 3-oxo-esters were synthesized from a variety of ketones and aliphatic aldehydes by 1,2-aryl/alkyl/hydride shift. Aryl–methyl ketones produced only aryl-migrated products, whereas other ketones yielded a mixture of products. For diaryl
A stereospecific route to trisubstituted olefins viaβ-lactones
作者:Sivapathasuntharam Mageswaran、M. Uvais S. Sultanbawa
DOI:10.1039/p19760000884
日期:——
Diastereoisomeric αα-disubstituted β-hydroxy-acids have been converted into β-lactones, which on refluxing in collidine yielded E- or Z-olefins with high stereoselectivity. The mechanisms of these transformations are discussed.