Process for for synthesis of (2S,3aS,7aS)-1-(S)-alanyl-octahydro-1H-indole-2- carboxylic acid derivatives and use in the synthesis of perindopril

摘要

The present invention relates to a compound of general formula IVA,
wherein R is selected from substituted or unsubstituted arylalkyl groups; and HA represents an acid capable of forming a salt.