Patent ID: 7964749

Claim:
Process for obtaining the synthesis intermediate of formula (II) useful for the synthesis of Valsartan, which comprises: a) imination of the aldehyde group of a compound of formula (VII) by L-Valine (IV) salts with organic or inorganic bases and a polar solvent or water: where: X means halogen or an OSO 2 R group, where R is CF3, tolyl, methyl or F; to give an imine-type compound or Schiff base of formula (VIII): where: X has the meaning defined above and B + is the protonated form of an organic base or an alkaline cation; b) reduction of the imine group of the compound of formula (VIII) followed by acidification, to give the compound of formula (VI): c) N-acylation, of the compound of formula (VI) with valeryl chloride to give the compound of formula II.