PROCESS FOR PRODUCING $g(b)-AMINO-$g(a)-HYDROXYCARBOXYLIC ACIDS AND DERIVATIVES THEREOF

摘要

PCT No. PCT/EP96/02573 Sec. 371 Date Jun. 1, 1998 Sec. 102(e) Date Jun. 1, 1998 PCT Filed Jun. 14, 1996 PCT Pub. No. WO97/02236 PCT Pub. Date Jan. 23, 1997Disclosed is a process for producing beta -amino- alpha -hydroxycarboxylic acid derivatives of general formula (2R,3S)- or (2S,3E)-N-(X,Y)-3-amino-2-hydroxy-3-phenyl propionic acid-Z of Formula I, e.g. of (2E,3S)-3-amino-2-hydroxy-3-phenyl propionic acid or (2R,3S)-N-benzoyl-3-amino-2-hydroxy-3-phenyl propionic acid methylester. Compounds of type I are valuable intermediates in the total synthesis of Taxols which can be used in the treatment of various forms of cancer.