C-2 hydroksyl beskyttet N-acyl(2R,3S)-3 fenylisoserin aktiverte estere og fremgangsmåter for fremstilling derav

摘要

New C-2 hydroxyl protected-N-Acyl (2R,3S)-3-phenylisoserine activated esters and method of making the same which are useful in semi-synthesis of paclitaxel.