868618-71-7Relevant articles and documents
Second-generation process research towards eletriptan: A fischer indole approach
Ashcroft, Christopher P.,Pettman, Alan,Watkinson, Simon,Hellier, Paul
, p. 98 - 103 (2011/09/16)
The development of a second-generation process for the synthesis of eletriptan via a Fischer indole cyclisation is described. The finalised process offers several potential advantages over the current route of manufacture including cost, throughput, and safety.
MODIFIED FISCHER INDOLE SYNTHESIS OF ELETRIPTAN
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Page/Page column 11-12, (2010/02/14)
The present invention relates to a new process for the preparation of eletriptan (I), or its enantiomer comprising a modified Fischer indole synthesis, namely the reaction of a compound of formula (II), wherein R1 is a suitable hydrazine protecting group, with a compound of formula (III) wherein R2is an aldehyde group (-CHO) or the functional equivalent thereof.