Process for the preparation of 2-(2-thenoylthio)-...

Details Process for the preparation of 2-(2-thenoylthio)-... Process for the preparation of 2-(2-thenoylthio)-...

C - Chemistry, Metallurgy

07

D

260/329

C07D 333/38 (2006.01) A61K 31/38 (2006.01) C07D 333/16 (2006.01) C07D 333/40 (2006.01)

Patent

CA 1153382

- 1 - Abstract: This invention relates to a new process for the preparation of 2-(2-thenoylthio)-propionylglycine (I), characterized by the fact that a salt of thiophene-2- thiolcarboxylic acid (II) is reacted with (2-halopro- pionyl)-glycine (III) according to the scheme: Image (II) (III) Image (I) where Me is a metal, preferably sodium or potassium, whereas X is halogen, preferably bromine or chlorine. This compound has remakable mucolytic and liver protective activity, and the new process of preparation achieves a higher yield and higher state of purity at lower cost.

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