Lys-MDMA
Lys-MDMA, or lysine-MDMA, also known as N-(L-lysinamidyl)-MDMA, is an intended prodrug of MDMA which was being investigated for possible use as a pharmaceutical drug in the treatment of psychiatric disorders. Structurally, lys-MDMA is the amide formed through condensation of MDMA's amine group with the carboxylic acid of lysine; in this way, lys-MDMA is to MDMA as lisdexamfetamine is to dextroamphetamine.