Optically active B-aminoketones, optically active 1,3-amino alcohols and processes for preparing them

摘要

The invention relates to chiral Mannich bases of formula (I), chiral 1,3-amino alcohols of formula (II) derived therefrom, wherein R<1>, R<2>, R<3>, R<4 >and R<5 >are as defined herein, and to processes for preparing Mannich salts of formula (III) containing a chiral anion Y*<-> and compounds of ormulae (I) and (II), wherein R<1>, R<2>, R<3>, R<4>, R<5 >and Y*<-> are as defined herein.