[EN] PIPERAZINE DERIVATIVES AND THEIR USE AS SYNTHESIS INTERMEDIATES [FR] NOUVEAUX DERIVES DE PIPERAZINE ET LEUR UTILISATION COMME INTERMEDIAIRES DE SYNTHESE
[EN] PIPERAZINE DERIVATIVES AND THEIR USE AS SYNTHESIS INTERMEDIATES [FR] NOUVEAUX DERIVES DE PIPERAZINE ET LEUR UTILISATION COMME INTERMEDIAIRES DE SYNTHESE
[EN] PIPERAZINE DERIVATIVES AND THEIR USE AS SYNTHESIS INTERMEDIATES<br/>[FR] NOUVEAUX DERIVES DE PIPERAZINE ET LEUR UTILISATION COMME INTERMEDIAIRES DE SYNTHESE