A tethered aminohydroxylation route to l-arabino-[2R,3S,4R] and l-xylo-[2R,3S,4S]-C18-phytosphingosines
作者:Abhishek Dubey、Pradeep Kumar
DOI:10.1016/j.tetlet.2009.02.173
日期:2009.7
A concise and highly efficient synthesis of l-arabino-[2R,3S,4R] and l-xylo-[2R,3S,4S]-C18-phytosphingosines has been achieved. The synthetic strategy features the Sharpless kinetic resolution and tethered aminohydroxylation as the key steps.
A general and concise asymmetric synthesis of sphingosine, safingol and phytosphingosines<i>via</i>tethered aminohydroxylation
作者:Pradeep Kumar、Abhishek Dubey、Vedavati G. Puranik
DOI:10.1039/c0ob00117a
日期:——
A novel, practical and efficient enantioselective synthesis of sphingoid bases, L-threo-[2S,3S]-sphinganine (safingol), L-threo-[2S,3S]-sphingosine, L-arabino-[2R,3S,4R] and L-xylo-[2R,3S,4S]-C18-phytosphingosine is described. The synthetic strategy features the Sharpless kinetic resolution and tethered aminohydroxylation (TA) as the key steps.
A stereoselective and convergent approach to the total synthesis of the natural product passifloricin A is illustrated using Prins cyclisation and metathesis reactions as key steps.