X. Sun, Y. Li, X. Zhuang
Sep 1, 2013
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Journal
Advanced Materials Research
Abstract
The optically pure ethyl nipecotate is an important drug intermediates. It was used for a variety of synthesis of APIs and pharmaceutical intermediates. In this paper we launched a study of the split of ethyl nipecotate. An efficient resolution of (±)-nipecotic acid has been achieved by the fractional crystallization with good yield and high enatio. The compound (S)-ethyl-1-(2-thiopheneacetyl)-3-piperidine-carboxylate is an investigational immune potentiating agent targeting direct stimulation of immune cells, useful for the prevention of infectious diseases in livestock.