[EN] N-(PYRID-4-YL)AMIDES AND N-(PYRIMIDIN-4-YL)AMIDES AND THEIR PHARMACEUTICAL AND COSMETIC USE [FR] N-(PYRID-4-YL)AMIDES ET N-(PYRIMIDIN-4-YL)AMIDES ET LEUR UTILISATION PHARMACEUTIQUE ET COSMÉTIQUE
[EN] N-(PYRID-4-YL)AMIDES AND N-(PYRIMIDIN-4-YL)AMIDES AND THEIR PHARMACEUTICAL AND COSMETIC USE [FR] N-(PYRID-4-YL)AMIDES ET N-(PYRIMIDIN-4-YL)AMIDES ET LEUR UTILISATION PHARMACEUTIQUE ET COSMÉTIQUE