The present invention relates to a process for the resolution of Schiff bases of racemic (R,S)-2-aminobutyramide to give optically pure (S)-2-aminobutyramide, an intermediate in the synthesis of levetiracetam.
A Viedma ripening route to an enantiopure building block for Levetiracetam and Brivaracetam
作者:Iaroslav Baglai、Michel Leeman、Richard M. Kellogg、Willem L. Noorduin
DOI:10.1039/c8ob02660b
日期:——
A simple route to enantiomerically pure (S)-2-aminobutyramide – the chiral component of the anti-epileptic drugs Levetiracetam and Brivaracetam has been developed. This approach is based on the rational design and application of a Viedma ripening process. The practical potential of the process is demonstrated on a large scale.