IMPROVED CYSTEINE-BASED PRODRUGS USEFUL IN THE TREATMENT OF SCHIZOPHRENIA

摘要

Disclosed are compounds having a reduced incidence of problems associated withN-acetylcysteine. The invention relates to a compound of formula II(see formula II) whereD is (see formula III or IV)R3 is selected from the group consisting of H and linear or branched C1-C6alkyl;R4 is a linear or branched C1-C6 alkyl;R6 is selected from the group consisting of H and (see formula V) andR5 is a linear or branched C1-C6 alkyl;or a pharmaceutically acceptable salt thereof, useful in the treatment ofdiseases and/orconditions of the Central Nervous System.