The present invention refers to the preparation of 1-aryl-1-alkyl-2-alkyl-3-dialkylamino-propane compounds, such as tapentadol, using a diastereoselective Eschenmoser-Claisen or Ireland-Claisen rearrangement.
本发明涉及使用对映选择性的Eschenmoser-Claisen或Ireland-Claisen重排反应制备1-芳基-1-烷基-2-烷基-3-二烷基
氨基
丙烷类化合物,如tapentadol。