The present invention relates to new substituted 4-amino-piperidine opioid receptor modulators, pharmaceutical compositions thereof, and methods of use thereof.
本发明涉及新的取代4-氨基哌啶类阿片受体调节剂,其药物组成物以及使用方法。
A Facile Method for Preparation of [2H3]-Sufentanil and Its Metabolites
An improved process for the synthesis of sufentanil with an overall yield of 26% is described. The reactive and high yielding N-debenzylation of the piperidine intermediate 7 using a mixture of Pd/C and Pd(OH)(2) was applied to other drug intermediates affording free amines in short reaction times. The deuterium-labeled sufentanil and the metabolite desmethylsufentanil were synthesized applying the