| 摘要 |
<p>The invention relates to a process for the synthesis of N-monosubstituted .beta.-amino alcohols of formula (I) and/or an addition salt of a proton aci d, wherein R1 and R2 independently represent alkyl, cycloalkyl, aryl or aralkyl , each being optionally further substituted with alkyl, alkoxy and/or halogen via direct preparation of N-monosubstituted .beta.-amino ketones of formula and its addition salts of proton acids, wherein R1 and R2 are as defined abo ve.</p> |
